v0.22.1

Use command sed for people who alias sed.
Fixes #493.
2025-09-04 11:38:21 +00:00 · 2015-01-10 19:43:36 -08:00 · 2015-01-09 01:50:05 -08:00 · 2015-01-01 23:31:55 -08:00 · 2015-01-01 22:28:30 -08:00 · 2015-01-02 12:51:59 +08:00
102 changed files with 3303 additions and 456 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,7 @@ test/bak
 .urchin_stdout

 node_modules/
+npm-debug.log

 .DS_Store
-
+current
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,39 @@
 language: c # defaults to ruby
 install:
-  - sudo apt-get install ksh zsh -y
-before_script:
-  - curl -o /tmp/urchin https://raw.github.com/scraperwiki/urchin/master/urchin && chmod +x /tmp/urchin
+  - sudo apt-get install zsh -y # ksh
+  - (mkdir /tmp/urchin && cd /tmp/urchin && curl -s "$(curl -s http://registry.npmjs.org/urchin | grep -Eo '"tarball":\s*"[^"]+"' | tail -n 1 | awk -F\" '{ print $4 }')" -O && tar -x -f urchin*)
+  - chmod +x /tmp/urchin/package/urchin
+  - '[ -z "$WITHOUT_CURL" ] || sudo apt-get remove curl -y'
 script:
-  - NVM_DIR=$TRAVIS_BUILD_DIR make URCHIN=/tmp/urchin test
-
+  - NVM_DIR=$TRAVIS_BUILD_DIR make TEST_SUITE=$TEST_SUITE URCHIN=/tmp/urchin/package/urchin test-$SHELL
+env:
+  - SHELL=sh TEST_SUITE=install_script
+  - SHELL=dash TEST_SUITE=install_script
+  - SHELL=bash TEST_SUITE=install_script
+  - SHELL=zsh TEST_SUITE=install_script
+#  - SHELL=ksh TEST_SUITE=install_script
+  - SHELL=sh TEST_SUITE=fast
+  - SHELL=dash TEST_SUITE=fast
+  - SHELL=bash TEST_SUITE=fast
+  - SHELL=zsh TEST_SUITE=fast
+#  - SHELL=ksh TEST_SUITE=fast
+  - SHELL=sh TEST_SUITE=slow
+  - SHELL=dash TEST_SUITE=slow
+  - SHELL=bash TEST_SUITE=slow
+  - SHELL=zsh TEST_SUITE=slow
+#  - SHELL=ksh TEST_SUITE=slow
+  - SHELL=sh TEST_SUITE=sourcing
+  - SHELL=dash TEST_SUITE=sourcing
+  - SHELL=bash TEST_SUITE=sourcing
+  - SHELL=zsh TEST_SUITE=sourcing
+#  - SHELL=ksh TEST_SUITE=sourcing
+  - SHELL=sh TEST_SUITE=installation
+  - SHELL=sh TEST_SUITE=installation WITHOUT_CURL=1
+  - SHELL=dash TEST_SUITE=installation
+  - SHELL=dash TEST_SUITE=installation WITHOUT_CURL=1
+  - SHELL=bash TEST_SUITE=installation
+  - SHELL=bash TEST_SUITE=installation WITHOUT_CURL=1
+  - SHELL=zsh TEST_SUITE=installation
+  - SHELL=zsh TEST_SUITE=installation WITHOUT_CURL=1
+#  - SHELL=ksh TEST_SUITE=installation
+#  - SHELL=ksh TEST_SUITE=installation WITHOUT_CURL=1
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -5,7 +5,7 @@ We love pull requests, they're our favorite.
 However, before submitting, please review the following:

 - Please include tests. Changes with tests will be merged very quickly.
- - Please manually confirm that your changes, and all tests, pass in `bash`, `sh`, and `zsh`. We hope to soon automatically run all these tests, but in the meantime, we have to rely on each contributor doing so.
+ - Please manually confirm that your changes work in `bash`, `sh`/`dash`, `ksh`, and `zsh`. Fast tests do run in these shells, but it's nice to manually verify also.
 - Please maintain consistent whitespace - 2-space indentation, trailing newlines in all files, etc.
 - Any time you make a change to your PR, please rebase freshly on top of master. Nobody likes merge commits.

--- a/81
+++ b/81
@@ -1,16 +1,77 @@
-URCHIN=`which urchin`
-SHELLS=sh bash dash ksh zsh
+	# Since we rely on paths relative to the makefile location, abort if make isn't being run from there.
+$(if $(findstring /,$(MAKEFILE_LIST)),$(error Please only invoke this makefile from the directory it resides in))
+	# Note: With Travis CI:
+	#  - the path to urchin is passed via the command line.
+	#  - the other utilities are NOT needed, so we skip the test for their existence.
+URCHIN := urchin
+ifeq ($(findstring /,$(URCHIN)),) # urchin path was NOT passed in.
+		# Add the local npm packages' bin folder to the PATH, so that `make` can find them, when invoked directly.
+		# Note that rather than using `$(npm bin)` the 'node_modules/.bin' path component is hard-coded, so that invocation works even from an environment
+		# where npm is (temporarily) unavailable due to having deactivated an nvm instance loaded into the calling shell in order to avoid interference with tests.
+	export PATH := $(shell printf '%s' "$$PWD/node_modules/.bin:$$PATH")
+		# The list of all supporting utilities, installed with `npm install`.
+	UTILS := $(URCHIN) replace semver
+		# Make sure that all required utilities can be located.
+	UTIL_CHECK := $(or $(shell PATH="$(PATH)" which $(UTILS) >/dev/null && echo 'ok'),$(error Did you forget to run `npm install` after cloning the repo? At least one of the required supporting utilities not found: $(UTILS)))
+endif
+	# The files that need updating when incrementing the version number.
+VERSIONED_FILES := nvm.sh install.sh README.markdown package.json
+	# Define all shells to test with. Can be overridden with `make SHELLS=... <target>`.
+SHELLS := sh bash dash zsh # ksh (#574)
+	# Generate 'test-<shell>' target names from specified shells.
+	# The embedded shell names are extracted on demand inside the recipes.
+SHELL_TARGETS := $(addprefix test-,$(SHELLS))
+	# Define the default test suite(s). This can be overridden with `make TEST_SUITE=<...>  <target>`.
+	# Test suites are the names of subfolders of './test'.
+TEST_SUITE := $(shell find ./test/* -type d -prune -exec basename {} \;)

-.PHONY: $(SHELLS) test

-fast: $(SHELLS)
+# Default target (by virtue of being the first non '.'-prefixed in the file).
+.PHONY: _no-target-specified
+_no-target-specified:
+	$(error Please specify the target to make - `make list` shows targets. Alternatively, use `npm test` to run the default tests; `npm run` shows all tests)

-$(SHELLS):
-	@printf '\n\033[0;34m%s\033[0m\n' "Running tests in $@"
-	@$@ $(URCHIN) -f test/fast
+# Lists all targets defined in this makefile.
+.PHONY: list
+list:
+	@$(MAKE) -pRrn : -f $(MAKEFILE_LIST) 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' | egrep -v -e '^[^[:alnum:]]' -e '^$@$$' | sort

-test: fast
-	@$(URCHIN) -f test/slow 
+# Set of test-<shell> targets; each runs the specified test suites for a single shell.
+# Note that preexisting NVM_* variables are unset to avoid interfering with tests, except when running the Travis tests (where NVM_DIR must be passed in and the env. is assumed to be pristine).
+.PHONY: $(SHELL_TARGETS)
+$(SHELL_TARGETS):
+	@shell='$@'; shell=$${shell##*-}; which "$$shell" >/dev/null || { printf '\033[0;31m%s\033[0m\n' "WARNING: Cannot test with shell '$$shell': not found." >&2; exit 0; } && \
+	 printf '\n\033[0;34m%s\033[0m\n' "Running tests in $$shell"; \
+	 [ -z "$$TRAVIS_BUILD_DIR" ] && for v in $$(set | awk -F'=' '$$1 ~ "^NVM_" { print $$1 }'); do unset $$v; done && unset v; \
+	 for suite in $(TEST_SUITE); do $(URCHIN) -f -s $$shell test/$$suite || exit; done

-default: test
+# All-tests target: invokes the specified test suites for ALL shells defined in $(SHELLS).
+.PHONY: test
+test: $(SHELL_TARGETS)

+.PHONY: _ensure-tag
+_ensure-tag:
+ifndef TAG
+	$(error Please invoke with `make TAG=<new-version> release`, where <new-version> is either an increment specifier (patch, minor, major, prepatch, preminor, premajor, prerelease), or an explicit major.minor.patch version number)
+endif
+
+# Ensures that the git workspace is clean.
+.PHONY: _ensure-clean
+_ensure-clean:
+	@[ -z "$$(git status --porcelain --untracked-files=no || echo err)" ] || { echo "Workspace is not clean; please commit changes first." >&2; exit 2; }
+
+# Makes a release; invoke with `make TAG=<versionOrIncrementSpec> release`.
+.PHONY: release
+release: _ensure-tag _ensure-clean
+	@old_ver=`git describe --abbrev=0 --tags --match 'v[0-9]*.[0-9]*.[0-9]*'` || { echo "Failed to determine current version." >&2; exit 1; }; old_ver=$${old_ver#v}; \
+	 new_ver=`echo "$(TAG)" | sed 's/^v//'`; new_ver=$${new_ver:-patch}; \
+	 if printf "$$new_ver" | grep -q '^[0-9]'; then \
+	   semver "$$new_ver" >/dev/null || { echo 'Invalid version number specified: $(TAG) - must be major.minor.patch' >&2; exit 2; }; \
+	   semver -r "> $$old_ver" "$$new_ver" >/dev/null || { echo 'Invalid version number specified: $(TAG) - must be HIGHER than current one.' >&2; exit 2; } \
+	 else \
+	   new_ver=`semver -i "$$new_ver" "$$old_ver"` || { echo 'Invalid version-increment specifier: $(TAG)' >&2; exit 2; } \
+	 fi; \
+	 printf "=== Bumping version **$$old_ver** to **$$new_ver** before committing and tagging:\n=== TYPE 'proceed' TO PROCEED, anything else to abort: " && read response && [ "$$response" = 'proceed' ] || { echo 'Aborted.' >&2; exit 2; };  \
+	 replace "$$old_ver" "$$new_ver" -- $(VERSIONED_FILES) && \
+	 git commit -m "v$$new_ver" $(VERSIONED_FILES) && \
+	 git tag -a -m "v$$new_ver" "v$$new_ver"
--- a/README.markdown
+++ b/README.markdown
@@ -1,32 +1,37 @@
-# Node Version Manager [![Build Status](https://travis-ci.org/creationix/nvm.svg?branch=master)](https://travis-ci.org/creationix/nvm)
+# Node Version Manager [![Build Status](https://travis-ci.org/creationix/nvm.svg?branch=master)][3]

 ## Installation

-First you'll need to make sure your system has a c++ compiler.  For OSX, XCode will work, for Ubuntu, the build-essential and libssl-dev packages work.
+First you'll need to make sure your system has a c++ compiler. For OSX, XCode will work, for Ubuntu, the build-essential and libssl-dev packages work.
+
+Note: `nvm` does not support Windows (see [#284](https://github.com/creationix/nvm/issues/284)). Two alternatives exist, which are not supported nor developed by us:
+ - [nvmw](http://github.com/hakobera/nvmw)
+ - [nvm-windows](http://github.com/coreybutler/nvm-windows)

 ### Install script

-To install you could use the [install script](https://github.com/creationix/nvm/blob/v0.5.0/install.sh) using cURL:
+To install you could use the [install script][2] using cURL:

-    curl https://raw.github.com/creationix/nvm/v0.5.0/install.sh | sh
+    curl https://raw.githubusercontent.com/creationix/nvm/v0.22.1/install.sh | bash

 or Wget:

-    wget -qO- https://raw.github.com/creationix/nvm/v0.5.0/install.sh | sh
+    wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.22.1/install.sh | bash

 <sub>The script clones the nvm repository to `~/.nvm` and adds the source line to your profile (`~/.bash_profile`, `~/.zshrc` or `~/.profile`).</sub>

-You can customize the install source, directory and profile using the `NVM_SOURCE`, `NVM_DIR` and `NVM_PROFILE` variables. Eg: `curl ... | NVM_DIR=/usr/local/nvm sh` for a global install.
+You can customize the install source, directory and profile using the `NVM_SOURCE`, `NVM_DIR`, and `PROFILE` variables.
+Eg: `curl ... | NVM_DIR=/usr/local/nvm bash` for a global install.

-<sub>*NB. The installer can use Git, cURL or Wget to download NVM, whatever is available.*</sub>
+<sub>*NB. The installer can use `git`, `curl`, or `wget` to download `nvm`, whatever is available.*</sub>

 ### Manual install

-For manual install create a folder somewhere in your filesystem with the `nvm.sh` file inside it.  I put mine in a folder called `nvm`.
+For manual install create a folder somewhere in your filesystem with the `nvm.sh` file inside it. I put mine in a folder called `nvm`.

-Or if you have `git` installed, then just clone it:
+Or if you have `git` installed, then just clone it, and check out the latest version:

-    git clone https://github.com/creationix/nvm.git ~/.nvm
+    git clone https://github.com/creationix/nvm.git ~/.nvm && cd ~/.nvm && git checkout `git describe --abbrev=0 --tags`

 To activate nvm, you need to source it from your shell:

@@ -37,6 +42,9 @@ Often I also put in a line to use a specific version of node.

 ## Usage

+You can create an `.nvmrc` file containing version number in the project root directory (or any parent directory).
+`nvm use`, `nvm install`, `nvm exec`, `nvm run`, and `nvm which` will all respect an `.nvmrc` file when a version is not supplied.
+
 To download, compile, and install the latest v0.10.x release of node, do this:

    nvm install 0.10
@@ -45,13 +53,29 @@ And then in any new shell just use the installed version:

    nvm use 0.10

-You can create an `.nvmrc` file containing version number in the project root folder; run the following command to switch versions:
-
-    nvm use
-
 Or you can just run it:

-    nvm run 0.10
+    nvm run 0.10 --version
+
+Or, you can run any arbitrary command in a subshell with the desired version of node:
+
+    nvm exec 0.10 node --version
+
+You can also get the path to the executable to where it was installed:
+
+    nvm which 0.10
+
+In place of a version pointer like "0.10", you can use the special default aliases "stable" and "unstable":
+
+    nvm install stable
+    nvm install unstable
+    nvm use stable
+    nvm run unstable --version
+
+If you want to use the system-installed version of node, you can use the special default alias "system":
+
+    nvm use system
+    nvm run system --version

 If you want to see what versions are installed:

@@ -67,7 +91,7 @@ To restore your PATH, you can deactivate it.

 To set a default Node version to be used in any new shell, use the alias 'default':

-    nvm alias default 0.10
+    nvm alias default stable

 To use a mirror of the node binaries, set `$NVM_NODEJS_ORG_MIRROR`:

@@ -76,6 +100,8 @@ To use a mirror of the node binaries, set `$NVM_NODEJS_ORG_MIRROR`:

    NVM_NODEJS_ORG_MIRROR=http://nodejs.org/dist nvm install 0.10

+`nvm use` will not, by default, create a "current" symlink. Set `$NVM_SYMLINK_CURRENT` to "true" to enable this behavior, which is sometimes useful for IDEs.
+
 ## License

 nvm is released under the MIT license.
@@ -90,7 +116,7 @@ The above copyright notice and this permission notice shall be included in all c
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 ## Running tests
-Tests are written in [Urchin](https://github.com/scraperwiki/urchin). Install Urchin (and other dependencies) like so:
+Tests are written in [Urchin]. Install Urchin (and other dependencies) like so:

    npm install

@@ -124,8 +150,9 @@ Put the above sourcing line just below the sourcing line for NVM in your profile
 nvm

 	$ nvm [tab][tab]
-	alias          copy-packages  help           list           run            uninstall      version
-	clear-cache    deactivate     install        ls             unalias        use
+    alias               deactivate          install             ls                  run                 unload
+    clear-cache         exec                list                ls-remote           unalias             use
+    current             help                list-remote         reinstall-packages  uninstall           version

 nvm alias

@@ -133,17 +160,17 @@ nvm alias
 	default

 	$ nvm alias my_alias [tab][tab]
-	v0.4.11        v0.4.12       v0.6.14
+	v0.6.21        v0.8.26       v0.10.28

 nvm use

 	$ nvm use [tab][tab]
-	my_alias        default        v0.4.11        v0.4.12       v0.6.14
+	my_alias        default        v0.6.21        v0.8.26       v0.10.28

 nvm uninstall

 	$ nvm uninstall [tab][tab]
-	my_alias        default        v0.4.11        v0.4.12       v0.6.14
+	my_alias        default        v0.6.21        v0.8.26       v0.10.28

 ## Problems

@@ -163,3 +190,8 @@ After the v0.8.6 release of node, nvm tries to install from binary packages. But

    nvm install -s 0.8.6

+[1]: https://github.com/creationix/nvm.git
+[2]: https://github.com/creationix/nvm/blob/v0.22.1/install.sh
+[3]: https://travis-ci.org/creationix/nvm
+[Urchin]: https://github.com/scraperwiki/urchin
+
--- a/12
+++ b/12
@@ -18,9 +18,11 @@ __nvm_commands ()
  current_word="${COMP_WORDS[COMP_CWORD]}"

  COMMANDS='\
-    help install uninstall use run\
-    ls ls-remote list list-remote deactivate\
-    alias unalias copy-packages clear-cache version'
+    help install uninstall use run exec \
+    alias unalias reinstall-packages \
+    current list ls list-remote ls-remote \
+    clear-cache deactivate unload \
+    version which'

    if [ ${#COMP_WORDS[@]} == 4 ]; then

@@ -79,8 +81,8 @@ __nvm ()
  return 0
 }

-# complete is a bash builtin, but recent versions of ZSH come with a function 
-# called bashcompinit that will create a complete in ZSH. If the user is in 
+# complete is a bash builtin, but recent versions of ZSH come with a function
+# called bashcompinit that will create a complete in ZSH. If the user is in
 # ZSH, load and run bashcompinit before calling the complete function.
 if [[ -n ${ZSH_VERSION-} ]]; then
 	autoload -U +X bashcompinit && bashcompinit
--- a/install.sh
+++ b/install.sh
@@ -2,51 +2,82 @@

 set -e

-has() {
+nvm_has() {
  type "$1" > /dev/null 2>&1
-  return $?
 }

 if [ -z "$NVM_DIR" ]; then
  NVM_DIR="$HOME/.nvm"
 fi

-if ! has "curl"; then
-  if has "wget"; then
-    # Emulate curl with wget
-    curl() {
-      ARGS="$* "
-      ARGS=${ARGS/-s /-q }
-      ARGS=${ARGS/-o /-O }
-      wget $ARGS
-    }
-  fi
-fi
+nvm_latest_version() {
+  echo "v0.22.1"
+}

-install_from_git() {
+#
+# Outputs the location to NVM depending on:
+# * The availability of $NVM_SOURCE
+# * The method used ("script" or "git" in the script, defaults to "git")
+# NVM_SOURCE always takes precedence
+#
+nvm_source() {
+  local NVM_METHOD
+  NVM_METHOD="$1"
  if [ -z "$NVM_SOURCE" ]; then
-    NVM_SOURCE="https://github.com/creationix/nvm.git"
+    local NVM_SOURCE
+    if [ "_$NVM_METHOD" = "_script" ]; then
+      NVM_SOURCE="https://raw.githubusercontent.com/creationix/nvm/$(nvm_latest_version)/nvm.sh"
+    elif [ "_$NVM_METHOD" = "_script-nvm-exec" ]; then
+      NVM_SOURCE="https://raw.githubusercontent.com/creationix/nvm/$(nvm_latest_version)/nvm-exec"
+    elif [ "_$NVM_METHOD" = "_git" ] || [ -z "$NVM_METHOD" ]; then
+      NVM_SOURCE="https://github.com/creationix/nvm.git"
+    else
+      echo >&2 "Unexpected value \"$NVM_METHOD\" for \$NVM_METHOD"
+      return 1
+    fi
  fi
+  echo "$NVM_SOURCE"
+  return 0
+}

-  if [ -d "$NVM_DIR/.git" ]; then
-    echo "=> nvm is already installed in $NVM_DIR, trying to update"
-    echo -e "\r=> \c"
-    cd "$NVM_DIR" && git pull 2> /dev/null || {
-      echo >&2 "Failed to update nvm, run 'git pull' in $NVM_DIR yourself.."
-    }
-  else
-    # Cloning to $NVM_DIR
-    echo "=> Downloading nvm from git to '$NVM_DIR'"
-    echo -e "\r=> \c"
-    mkdir -p "$NVM_DIR"
-    git clone "$NVM_SOURCE" "$NVM_DIR"
+nvm_download() {
+  if nvm_has "curl"; then
+    curl $*
+  elif nvm_has "wget"; then
+    # Emulate curl with wget
+    ARGS=$(echo "$*" | command sed -e 's/--progress-bar /--progress=bar /' \
+                           -e 's/-L //' \
+                           -e 's/-I /--server-response /' \
+                           -e 's/-s /-q /' \
+                           -e 's/-o /-O /' \
+                           -e 's/-C - /-c /')
+    wget $ARGS
  fi
 }

-install_as_script() {
-  if [ -z "$NVM_SOURCE" ]; then
-    NVM_SOURCE="https://raw.github.com/creationix/nvm/master/nvm.sh"
+install_nvm_from_git() {
+  if [ -d "$NVM_DIR/.git" ]; then
+    echo "=> nvm is already installed in $NVM_DIR, trying to update"
+    printf "\r=> "
+    cd "$NVM_DIR" && (git fetch 2> /dev/null || {
+      echo >&2 "Failed to update nvm, run 'git fetch' in $NVM_DIR yourself." && exit 1
+    })
+  else
+    # Cloning to $NVM_DIR
+    echo "=> Downloading nvm from git to '$NVM_DIR'"
+    printf "\r=> "
+    mkdir -p "$NVM_DIR"
+    git clone "$(nvm_source git)" "$NVM_DIR"
  fi
+  cd "$NVM_DIR" && git checkout --quiet $(nvm_latest_version) && git branch --quiet -D master >/dev/null 2>&1
+  return
+}
+
+install_nvm_as_script() {
+  local NVM_SOURCE
+  NVM_SOURCE=$(nvm_source script)
+  local NVM_EXEC_SOURCE
+  NVM_EXEC_SOURCE=$(nvm_source script-nvm-exec)

  # Downloading to $NVM_DIR
  mkdir -p "$NVM_DIR"
@@ -55,76 +86,99 @@ install_as_script() {
  else
    echo "=> Downloading nvm as script to '$NVM_DIR'"
  fi
-  curl -s "$NVM_SOURCE" -o "$NVM_DIR/nvm.sh" || {
-    echo >&2 "Failed to download '$NVM_SOURCE'.."
+  nvm_download -s "$NVM_SOURCE" -o "$NVM_DIR/nvm.sh" || {
+    echo >&2 "Failed to download '$NVM_SOURCE'"
    return 1
  }
+  nvm_download -s "$NVM_EXEC_SOURCE" -o "$NVM_DIR/nvm-exec" || {
+    echo >&2 "Failed to download '$NVM_EXEC_SOURCE'"
+    return 2
+  }
+  chmod a+x "$NVM_DIR/nvm-exec" || {
+    echo >&2 "Failed to mark '$NVM_DIR/nvm-exec' as executable"
+    return 3
+  }
 }

-if [ -z "$METHOD" ]; then
-  # Autodetect install method
-  if has "git"; then
-    install_from_git
-  elif has "curl"; then
-    install_as_script
-  else
-    echo >&2 "You need git, curl or wget to install nvm"
-    exit 1
+#
+# Detect profile file if not specified as environment variable
+# (eg: PROFILE=~/.myprofile)
+# The echo'ed path is guaranteed to be an existing file
+# Otherwise, an empty string is returned
+#
+nvm_detect_profile() {
+  if [ -f "$PROFILE" ]; then
+    echo "$PROFILE"
+  elif [ -f "$HOME/.bashrc" ]; then
+    echo "$HOME/.bashrc"
+  elif [ -f "$HOME/.bash_profile" ]; then
+    echo "$HOME/.bash_profile"
+  elif [ -f "$HOME/.zshrc" ]; then
+    echo "$HOME/.zshrc"
+  elif [ -f "$HOME/.profile" ]; then
+    echo "$HOME/.profile"
  fi
-else
-  if [ "$METHOD" = "git" ]; then
-    if ! has "git"; then
+}
+
+nvm_do_install() {
+  if [ -z "$METHOD" ]; then
+    # Autodetect install method
+    if nvm_has "git"; then
+      install_nvm_from_git
+    elif nvm_has "nvm_download"; then
+      install_nvm_as_script
+    else
+      echo >&2 "You need git, curl, or wget to install nvm"
+      exit 1
+    fi
+  elif [ "~$METHOD" = "~git" ]; then
+    if ! nvm_has "git"; then
      echo >&2 "You need git to install nvm"
      exit 1
    fi
-    install_from_git
-  fi
-  if [ "$METHOD" = "script" ]; then
-    if ! has "curl"; then
+    install_nvm_from_git
+  elif [ "~$METHOD" = "~script" ]; then
+    if ! nvm_has "nvm_download"; then
      echo >&2 "You need curl or wget to install nvm"
      exit 1
    fi
-    install_as_script
+    install_nvm_as_script
  fi
-fi

-echo
+  echo

-# Detect profile file if not specified as environment variable (eg: PROFILE=~/.myprofile).
-if [ -z "$PROFILE" ]; then
-  if [ -f "$HOME/.bash_profile" ]; then
-    PROFILE="$HOME/.bash_profile"
-  elif [ -f "$HOME/.zshrc" ]; then
-    PROFILE="$HOME/.zshrc"
-  elif [ -f "$HOME/.profile" ]; then
-    PROFILE="$HOME/.profile"
-  fi
-fi
+  local NVM_PROFILE
+  NVM_PROFILE=$(nvm_detect_profile)

-SOURCE_STR="[ -s \"$NVM_DIR/nvm.sh\" ] && . \"$NVM_DIR/nvm.sh\"  # This loads nvm"
+  SOURCE_STR="\nexport NVM_DIR=\"$NVM_DIR\"\n[ -s \"\$NVM_DIR/nvm.sh\" ] && . \"\$NVM_DIR/nvm.sh\"  # This loads nvm"

-if [ -z "$PROFILE" ] || [ ! -f "$PROFILE" ] ; then
-  if [ -z $PROFILE ]; then
-    echo "=> Profile not found. Tried ~/.bash_profile ~/.zshrc and ~/.profile."
+  if [ -z "$NVM_PROFILE" ] ; then
+    echo "=> Profile not found. Tried $NVM_PROFILE (as defined in \$PROFILE), ~/.bashrc, ~/.bash_profile, ~/.zshrc, and ~/.profile."
    echo "=> Create one of them and run this script again"
+    echo "=> Create it (touch $NVM_PROFILE) and run this script again"
+    echo "   OR"
+    echo "=> Append the following lines to the correct file yourself:"
+    printf "$SOURCE_STR"
+    echo
  else
-    echo "=> Profile $PROFILE not found"
-    echo "=> Create it (touch $PROFILE) and run this script again"
+    if ! grep -qc 'nvm.sh' "$NVM_PROFILE"; then
+      echo "=> Appending source string to $NVM_PROFILE"
+      printf "$SOURCE_STR\n" >> "$NVM_PROFILE"
+    else
+      echo "=> Source string already in $NVM_PROFILE"
+    fi
  fi
-  echo "   OR"
-  echo "=> Append the following line to the correct file yourself:"
-  echo
-  echo "   $SOURCE_STR"
-  echo
-else
-  if ! grep -qc 'nvm.sh' $PROFILE; then
-    echo "=> Appending source string to $PROFILE"
-    echo "" >> "$PROFILE"
-    echo $SOURCE_STR >> "$PROFILE"
-  else
-    echo "=> Source string already in $PROFILE"
-  fi
-fi

-echo "=> Close and reopen your terminal to start using nvm"
+  echo "=> Close and reopen your terminal to start using nvm"
+  nvm_reset
+}

+#
+# Unsets the various functions defined
+# during the execution of the install script
+#
+nvm_reset() {
+  unset -f nvm_do_install nvm_has nvm_download install_nvm_as_script install_nvm_from_git nvm_reset nvm_detect_profile nvm_latest_version
+}
+
+[ "_$NVM_ENV" = "_testing" ] || nvm_do_install
--- a/9
+++ b/9
@@ -4,12 +4,11 @@ DIR="$(command cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

 source "$DIR/nvm.sh"

-if [ ! "$NODE_VERSION" ]; then
-  echo 'NODE_VERSION not set'
-  exit 1
+if [ -n "$NODE_VERSION" ]; then
+  nvm use $NODE_VERSION > /dev/null || (echo "NODE_VERSION not set" >&2 && exit 127)
+else
+  nvm use > /dev/null || (echo "No .nvmrc file found" >&2 && exit 127)
 fi

-nvm use $NODE_VERSION
-
 exec $@

--- a/nvm.sh
+++ b/nvm.sh
--- a/package.json
+++ b/package.json
@@ -1,14 +1,17 @@
 {
  "name": "nvm",
-  "version": "0.5.0",
+  "version": "0.22.1",
  "description": "Node Version Manager - Simple bash script to manage multiple active node.js versions",
  "directories": {
    "test": "test"
  },
  "scripts": {
-    "test": "urchin test",
-    "test/fast": "urchin -f test/fast",
-    "test/slow": "urchin -f test/slow"
+    "test": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make test-$shell",
+    "test/fast": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=fast test-$shell",
+    "test/slow": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=slow test-$shell",
+    "test/install_script": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=install_script test-$shell",
+    "test/installation": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=installation test-$shell",
+    "test/sourcing": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=sourcing test-$shell"
  },
  "repository": {
    "type": "git",
@@ -27,7 +30,8 @@
  },
  "homepage": "https://github.com/creationix/nvm",
  "devDependencies": {
-    "urchin": "~0.0.2"
+    "replace": "~0.3.0",
+    "semver": "~4.2.0",
+    "urchin": "~0.0.5"
  }
 }
-
--- a/test/fast/Aliases/Running
+++ b/test/fast/Aliases/Running
@@ -1,4 +1,4 @@
 #!/bin/sh

 . ../../../nvm.sh
-[ $(nvm alias test1 | wc -l) = '2' ]
+[ $(nvm alias test-stable-1 | wc -l) = '2' ]
--- a/test/fast/Aliases/Running
+++ b/test/fast/Aliases/Running
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+. ../../../nvm.sh
+
+die () { echo $@ ; exit 1; }
+
+NVM_ALIAS_OUTPUT=$(nvm alias)
+
+EXPECTED_STABLE="$(nvm_print_implicit_alias local stable)"
+STABLE_VERSION="$(nvm_version "$EXPECTED_STABLE")"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e "^stable -> $EXPECTED_STABLE (-> $STABLE_VERSION) (default)$" \
+  || die "nvm alias did not contain the default local stable node version"
+
+EXPECTED_UNSTABLE="$(nvm_print_implicit_alias local unstable)"
+UNSTABLE_VERSION="$(nvm_version "$EXPECTED_UNSTABLE")"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e "^unstable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION) (default)$" \
+  || die "nvm alias did not contain the default local unstable node version"
+
--- a/test/fast/Aliases/Running
+++ b/test/fast/Aliases/Running
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+. ../../../nvm.sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+cleanup () {
+  rm -rf ../../../alias/stable
+  rm -rf ../../../alias/unstable
+  rm -rf ../../../v0.8.1
+  rm -rf ../../../v0.9.1
+}
+
+mkdir ../../../v0.8.1
+mkdir ../../../v0.9.1
+
+EXPECTED_STABLE="$(nvm_print_implicit_alias local stable)"
+STABLE_VERSION="$(nvm_version "$EXPECTED_STABLE")"
+
+EXPECTED_UNSTABLE="$(nvm_print_implicit_alias local unstable)"
+UNSTABLE_VERSION="$(nvm_version "$EXPECTED_UNSTABLE")"
+
+[ "_$STABLE_VERSION" != "_$UNSTABLE_VERSION" ] \
+  || die "stable and unstable versions are the same!"
+
+nvm alias stable "$EXPECTED_UNSTABLE"
+nvm alias unstable "$EXPECTED_STABLE"
+
+NVM_ALIAS_OUTPUT=$(nvm alias)
+
+echo "$NVM_ALIAS_OUTPUT" | \grep -e "^stable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION)$" \
+  || die "nvm alias did not contain the overridden 'stable' alias"
+
+echo "$NVM_ALIAS_OUTPUT" | \grep -e "^unstable -> $EXPECTED_STABLE (-> $STABLE_VERSION)$" \
+  || die "nvm alias did not contain the overridden 'unstable' alias"
+
+cleanup
+
--- a/test/fast/Aliases/Running
+++ b/test/fast/Aliases/Running
@@ -1,4 +1,48 @@
 #!/bin/sh

 . ../../../nvm.sh
-[ $(nvm alias | wc -l) = '10' ]
+
+die () { echo $@ ; exit 1; }
+
+NVM_ALIAS_OUTPUT=$(nvm alias)
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-stable-1 -> 0.0.1 (-> v0.0.1)$' \
+  || die "did not find test-stable-1 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-stable-2 -> 0.0.2 (-> v0.0.2)$' \
+  || die "did not find test-stable-2 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-stable-3 -> 0.0.3 (-> v0.0.3)$' \
+  || die "did not find test-stable-3 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-stable-4 -> 0.0.4 (-> v0.0.4)$' \
+  || die "did not find test-stable-4 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-stable-5 -> 0.0.5 (-> v0.0.5)$' \
+  || die "did not find test-stable-5 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-stable-6 -> 0.0.6 (-> v0.0.6)$' \
+  || die "did not find test-stable-6 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-stable-7 -> 0.0.7 (-> v0.0.7)$' \
+  || die "did not find test-stable-7 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-stable-8 -> 0.0.8 (-> v0.0.8)$' \
+  || die "did not find test-stable-8 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-stable-9 -> 0.0.9 (-> v0.0.9)$' \
+  || die "did not find test-stable-9 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-stable-10 -> 0.0.10 (-> v0.0.10)$' \
+  || die "did not find test-stable-10 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-unstable-1 -> 0.1.1 (-> v0.1.1)$' \
+  || die "did not find test-unstable-1 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-unstable-2 -> 0.1.2 (-> v0.1.2)$' \
+  || die "did not find test-unstable-2 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-unstable-3 -> 0.1.3 (-> v0.1.3)$' \
+  || die "did not find test-unstable-3 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-unstable-4 -> 0.1.4 (-> v0.1.4)$' \
+  || die "did not find test-unstable-4 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-unstable-5 -> 0.1.5 (-> v0.1.5)$' \
+  || die "did not find test-unstable-5 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-unstable-6 -> 0.1.6 (-> v0.1.6)$' \
+  || die "did not find test-unstable-6 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-unstable-7 -> 0.1.7 (-> v0.1.7)$' \
+  || die "did not find test-unstable-7 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-unstable-8 -> 0.1.8 (-> v0.1.8)$' \
+  || die "did not find test-unstable-8 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-unstable-9 -> 0.1.9 (-> v0.1.9)$' \
+  || die "did not find test-unstable-9 alias"
+echo "$NVM_ALIAS_OUTPUT" | \grep -e '^test-unstable-10 -> 0.1.10 (-> v0.1.10)$' \
+  || die "did not find test-unstable-10 alias"
+
--- a/test/fast/Aliases/circular/nvm_resolve_alias
+++ b/test/fast/Aliases/circular/nvm_resolve_alias
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../../nvm.sh
+
+ALIAS="$(nvm_resolve_alias loopback)"
+[ "_$ALIAS" = "_∞" ] || die "nvm_resolve_alias loopback was not ∞; got $ALIAS"
+OUTPUT="$(nvm alias loopback)"
+EXPECTED_OUTPUT="loopback -> loopback (-> ∞)"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm alias loopback was not $EXPECTED_OUTPUT; got $OUTPUT"
+
+ALIAS="$(nvm_resolve_alias one)"
+[ "_$ALIAS" = "_∞" ] || die "nvm_resolve_alias one was not ∞; got $ALIAS"
+OUTPUT="$(nvm alias one)"
+EXPECTED_OUTPUT="one -> two (-> ∞)"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm alias one was not $EXPECTED_OUTPUT; got $OUTPUT"
+
+ALIAS="$(nvm_resolve_alias two)"
+[ "_$ALIAS" = "_∞" ] || die "nvm_resolve_alias two was not ∞; got $ALIAS"
+OUTPUT="$(nvm alias two)"
+EXPECTED_OUTPUT="two -> three (-> ∞)"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm alias two was not $EXPECTED_OUTPUT; got $OUTPUT"
+
+ALIAS="$(nvm_resolve_alias three)"
+[ "_$ALIAS" = "_∞" ] || die "nvm_resolve_alias three was not ∞; got $ALIAS"
+OUTPUT="$(nvm alias three)"
+EXPECTED_OUTPUT="three -> one (-> ∞)"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm alias three was not $EXPECTED_OUTPUT; got $OUTPUT"
+
+ALIAS="$(nvm_resolve_alias four)"
+[ "_$ALIAS" = "_∞" ] || die "nvm_resolve_alias four was not ∞; got $ALIAS"
+OUTPUT="$(nvm alias four)"
+EXPECTED_OUTPUT="four -> two (-> ∞)"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm alias four was not $EXPECTED_OUTPUT; got $OUTPUT"
+
--- a/test/fast/Aliases/circular/setup
+++ b/test/fast/Aliases/circular/setup
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+echo loopback > ../../../../alias/loopback
+
+echo two > ../../../../alias/one
+echo three > ../../../../alias/two
+echo one > ../../../../alias/three
+
+echo two > ../../../../alias/four
+
--- a/test/fast/Aliases/circular/teardown
+++ b/test/fast/Aliases/circular/teardown
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+rm -f ../../../../alias/loopback
+
+rm -f ../../../../alias/one
+rm -f ../../../../alias/two
+rm -f ../../../../alias/three
+
+rm -f ../../../../alias/four
+
--- a/test/fast/Aliases/nvm_resolve_alias
+++ b/test/fast/Aliases/nvm_resolve_alias
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+EXIT_CODE=$(nvm_resolve_alias ; echo $?)
+[ $EXIT_CODE = "1" ] || die "nvm_resolve_alias without an argument did not return 1; got $EXIT_CODE"
+
+for i in $(seq 1 10)
+  do
+  STABLE_ALIAS="$(nvm_resolve_alias test-stable-$i)"
+  [ "_$STABLE_ALIAS" = "_v0.0.$i" ] \
+    || die "'nvm_resolve_alias test-stable-$i' was not v0.0.$i; got $STABLE_ALIAS"
+  UNSTABLE_ALIAS="$(nvm_resolve_alias test-unstable-$i)"
+  [ "_$UNSTABLE_ALIAS" = "_v0.1.$i" ] \
+    || die "'nvm_resolve_alias test-unstable-$i' was not v0.1.$i; got $UNSTABLE_ALIAS"
+done
+
+EXIT_CODE=$(nvm_resolve_alias nonexistent ; echo $?)
+[ $EXIT_CODE = "2" ] || die "'nvm_resolve_alias nonexistent' did not return 2; got $EXIT_CODE"
+
+STABLE="$(nvm_resolve_alias stable)"
+[ "_$STABLE" = "_v0.0.10" ] || die "'nvm_resolve_alias stable' was not v0.0.10; got $STABLE"
+
+UNSTABLE="$(nvm_resolve_alias unstable)"
+[ "_$UNSTABLE" = "_v0.1.10" ] || die "'nvm_resolve_alias unstable' was not v0.1.10; got $UNSTABLE"
+
--- a/test/fast/Aliases/setup
+++ b/test/fast/Aliases/setup
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+for i in $(seq 1 10)
+  do
+  echo 0.0.$i > ../../../alias/test-stable-$i
+  mkdir -p ../../../v0.0.$i
+  echo 0.1.$i > ../../../alias/test-unstable-$i
+  mkdir -p ../../../v0.1.$i
+done
--- a/test/fast/Aliases/setup_dir
+++ b/test/fast/Aliases/setup_dir
@@ -1,6 +0,0 @@
-#!/bin/sh
-
-for i in $(seq 1 10)
-  do
-  echo v0.0.$i > ../../../alias/test$i
-done
--- a/test/fast/Aliases/teardown
+++ b/test/fast/Aliases/teardown
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+for i in $(seq 1 10)
+  do
+  rm -f "../../../alias/test-stable-$i"
+  rm -rf "../../../v0.0.$i"
+  rm -f "../../../alias/test-unstable-$i"
+  rm -rf "../../../v0.1.$i"
+done
+
+rm -f "../../../alias/stable"
+rm -f "../../../alias/unstable"
+
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+mkdir -p ../../../v0.0.2
+mkdir -p ../../../v0.0.20
+mkdir -p ../../../versions/v0.12.0
+
+. ../../../nvm.sh
+
+die () { echo $@ ; exit 1; }
+
+# The result should contain only the appropriate version numbers.
+
+nvm which 0.0.2 || die "v0.0.2 not found"
+NVM_BIN="$(nvm which 0.0.2)"
+[ "_$NVM_BIN" = "_$(nvm_version_path v0.0.2)/bin/node" ] \
+  || die "'nvm which 0.0.2' did not contain the correct path: got '$NVM_BIN'"
+
+nvm which 0.0.20 || die "v0.0.20 not found"
+NVM_BIN="$(nvm which 0.0.20)"
+[ "_$NVM_BIN" = "_$(nvm_version_path v0.0.20)/bin/node" ] \
+  || die "'nvm which 0.20.0' did not contain the correct path: got '$NVM_BIN'"
+
+nvm which 0.12.0 || die "v0.0.20 not found"
+NVM_BIN="$(nvm which 0.12.0)"
+[ "_$NVM_BIN" = "_$(nvm_version_path v0.12.0)/bin/node" ] \
+  || die "'nvm which 0.12.0' did not contain the correct path: got '$NVM_BIN'"
+
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,6 @@
+ #!/bin/sh
+
+. ../../../nvm.sh
+
+nvm which nonexistent_version
+[ "_$?" = "_1" ]
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,3 @@
+rmdir ../../../v0.0.2 >/dev/null 2>&1
+rmdir ../../../v0.0.20 >/dev/null 2>&1
+rmdir ../../../v0.12.0 >/dev/null 2>&1
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+mkdir ../../../v0.0.2
+mkdir ../../../v0.0.20
+
+. ../../../nvm.sh
+
+die () { echo $@ ; exit 1; }
+
+# The result should contain only the appropriate version numbers.
+
+nvm ls 0.0.2 | grep 'v0.0.2' > /dev/null
+if [ $? -eq 0 ]; then
+  echo '"nvm ls 0.0.2" contained v0.0.2'
+fi
+
+nvm ls 0.0.2 | grep 'v0.0.20' > /dev/null
+if [ $? -eq 0 ]; then
+  die '"nvm ls 0.0.2" contained v0.0.20'
+fi
+
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -2,11 +2,40 @@

 mkdir ../../../v0.1.3
 mkdir ../../../v0.2.3
+mkdir ../../../v0.20.3

 . ../../../nvm.sh

+die () { echo $@ ; exit 1; }
+
 # The result should contain only the appropriate version numbers.
-nvm ls 0.2 | grep v0.2.3 &&
-nvm ls 0.1 | grep -v v0.2.3 &&
-nvm ls 0.1 | grep v0.1.3 &&
-nvm ls v0.2 | grep v0.2.3
+
+nvm ls 0.1 | grep 'v0.2.3' > /dev/null
+if [ $? -eq 0 ]; then
+  echo '"nvm ls 0.1" contained v0.2.3'
+fi
+
+nvm ls 0.1 | grep 'v0.20.3' > /dev/null
+if [ $? -eq 0 ]; then
+  die '"nvm ls 0.1" contained v0.20.3'
+fi
+
+nvm ls 0.1 | grep 'v0.1.3' > /dev/null
+if [ $? -ne 0  ]; then
+  die '"nvm ls 0.1" did not contain v0.1.3'
+fi
+
+nvm ls 0.2 | grep 'v0.2.3' > /dev/null
+if [ $? -ne 0  ]; then
+  die '"nvm ls 0.2" did not contain v0.2.3'
+fi
+
+nvm ls 0.2 | grep 'v0.20.3' > /dev/null
+if [ $? -eq 0  ]; then
+  die '"nvm ls 0.2" contained v0.20.3'
+fi
+
+nvm ls 0.2 | grep 'v0.2.3' > /dev/null
+if [ $? -ne 0  ]; then
+  die '"nvm ls 0.2" did not contain v0.2.3'
+fi
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,7 @@
+ #!/bin/sh
+
+. ../../../nvm.sh
+
+nvm ls nonexistent_version
+[ "$?" = "3" ]
+
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,7 @@
+ #!/bin/sh
+
+. ../../../nvm.sh
+
+nvm ls node
+[ "$?" = "3" ]
+
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,29 @@
+ #!/bin/sh
+
+. ../../../nvm.sh
+
+die () { echo $@ ; exit 1; }
+
+mkdir ../../../v0.2.3
+mkdir ../../../v0.3.3
+
+EXPECTED_STABLE="$(nvm_print_implicit_alias local stable)"
+STABLE_VERSION="$(nvm_version "$EXPECTED_STABLE")"
+
+EXPECTED_UNSTABLE="$(nvm_print_implicit_alias local unstable)"
+UNSTABLE_VERSION="$(nvm_version "$EXPECTED_UNSTABLE")"
+
+nvm ls stable | \grep "$STABLE_VERSION" >/dev/null \
+  || die "expected 'nvm ls stable' to give $STABLE_VERSION, got $(nvm ls stable)"
+
+nvm ls unstable | \grep "$UNSTABLE_VERSION" >/dev/null \
+  || die "expected 'nvm ls unstable' to give $UNSTABLE_VERSION, got $(nvm ls unstable)"
+
+mkdir ../../../v0.1.2
+nvm alias stable 0.1
+
+nvm ls stable | \grep -v "$STABLE_VERSION" >/dev/null \
+  || die "'nvm ls stable' contained $STABLE_VERSION instead of v0.1.2"
+nvm ls stable | \grep v0.1.2 >/dev/null \
+  || die "'nvm ls stable' did not contain v0.1.2"
+
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+mkdir -p ../../../v0.0.1
+mkdir -p ../../../v0.0.3
+mkdir -p ../../../v0.0.9
+mkdir -p ../../../v0.3.1
+mkdir -p ../../../v0.3.3
+mkdir -p ../../../v0.3.9
+
+nvm_has_system_node() { return 0; }
+nvm ls system | grep system 2>&1 > /dev/null
+[ $? -eq 0 ] || die '"nvm ls system" did not contain "system" when system node is present'
+
+nvm_has_system_node() { return 1; }
+nvm ls system | grep system 2>&1 > /dev/null
+[ $? -ne 0 ] || die '"nvm ls system" contained "system" when system node is not present'
+
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+mkdir ../../../v0.1.3
+mkdir ../../../v0.2.3
+
+. ../../../nvm.sh
+
+[ -z `nvm ls | grep '^ *\.'` ]
+# The result should contain only the appropriate version numbers.
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+mkdir ../../../v0.1.3
+mkdir ../../../v0.2.3
+mkdir ../../../versions
+
+. ../../../nvm.sh
+
+[ -z "$(nvm ls | \grep 'versions')" ]
+# The result should contain only the appropriate version numbers.
+
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+mkdir -p ../../../v0.0.1
+mkdir -p ../../../v0.0.3
+mkdir -p ../../../v0.0.9
+mkdir -p ../../../v0.3.1
+mkdir -p ../../../v0.3.3
+mkdir -p ../../../v0.3.9
+
+nvm_has_system_node() { return 0; }
+nvm ls | grep system 2>&1 > /dev/null
+[ $? -eq 0 ] || die '"nvm ls" did not contain "system" when system node is present'
+
+nvm_has_system_node() { return 1; }
+nvm ls | grep system 2>&1 > /dev/null
+[ $? -ne 0 ] || die '"nvm ls" contained "system" when system node is not present'
+
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+mkdir -p ../../../versions/v0.12.1
+mkdir ../../../v0.1.3
+
+. ../../../nvm.sh
+
+nvm ls 0.12 | grep v0.12.1 || die '"nvm ls" did not list a version in the versions/ directory'
+nvm ls 0.1 | grep v0.1.3 || die '"nvm ls" did not list a version not in the versions/ directory'
+
--- a/test/fast/Listing
+++ b/test/fast/Listing
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+mkdir ../../../v0.1.2
+
+. ../../../nvm.sh
+
+nvm ls v0.1 | grep v0.1.2 &&
+nvm ls v0.1.2 | grep v0.1.2 &&
+nvm ls v0.1. | grep v0.1.2 &&
+nvm ls v0.1.1 | grep N/A
+
--- a/versions/teardown
+++ b/versions/teardown
@@ -0,0 +1,17 @@
+rmdir ../../../v0.0.1 >/dev/null 2>&1
+rmdir ../../../v0.0.2 >/dev/null 2>&1
+rmdir ../../../v0.0.3 >/dev/null 2>&1
+rmdir ../../../v0.0.9 >/dev/null 2>&1
+rmdir ../../../v0.0.20 >/dev/null 2>&1
+rmdir ../../../v0.1.2 >/dev/null 2>&1
+rmdir ../../../v0.1.3 >/dev/null 2>&1
+rmdir ../../../v0.2.3 >/dev/null 2>&1
+rmdir ../../../v0.3.1 >/dev/null 2>&1
+rmdir ../../../v0.3.3 >/dev/null 2>&1
+rmdir ../../../v0.3.9 >/dev/null 2>&1
+rmdir ../../../v0.20.3 >/dev/null 2>&1
+rmdir ../../../versions >/dev/null 2>&1
+unalias nvm_has_system_node >/dev/null 2>&1
+rm -f ../../../alias/stable >/dev/null 2>&1
+rm -f ../../../alias/unstable >/dev/null 2>&1
+
--- a/test/fast/Running
+++ b/test/fast/Running
@@ -3,4 +3,8 @@
 die () { echo $@ ; exit 1; }

 . ../../nvm.sh
-[ "$(nvm current)" = "$(node -v)" ] || die "Failed to find current version"
+
+nvm deactivate 2>&1
+
+[ "$(nvm current)" = "system" ] || [ "$(nvm current)" = "none" ] || die '"nvm current" did not report "system" or "none" when deactivated'
+
--- a/test/fast/Running
+++ b/test/fast/Running
@@ -7,8 +7,11 @@ die () { echo $@ ; exit 1; }
 [ `expr $PATH : ".*v0.2.3/.*/bin"` = 0 ] || echo "WARNING: Unexpectedly found v0.2.3 already active" >&2

 . ../../nvm.sh
-nvm use v0.2.3 &&
-[ `expr $PATH : ".*v0.2.3/.*/bin"` != 0 ] || die "Failed to activate v0.2.3"
+nvm use v0.2.3 || die "Failed to activate v0.2.3"
+[ `expr "$PATH" : ".*v0.2.3/.*/bin"` != 0 ] || die "PATH not set up properly"
+[ `expr "$NODE_PATH" : ".*v0.2.3/.*/lib/node_modules"` = 0 ] || die "NODE_PATH should not contain (npm root -g)"
+# ^ note: NODE_PATH should not contain `npm root -g` since globals should not be requireable

-nvm deactivate &&
-[ `expr $PATH : ".*v0.2.3/.*/bin"` = 0 ] || die "Failed to deactivate v0.2.3"
+nvm deactivate || die "Failed to deactivate v0.2.3"
+[ `expr "$PATH" : ".*v0.2.3/.*/bin"` = 0 ] || die "PATH not cleaned properly"
+[ `expr "$NODE_PATH" : ".*v0.2.3/.*/lib/node_modules"` = 0 ] || die "NODE_PATH not cleaned properly"
--- a/test/fast/Running
+++ b/test/fast/Running
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+cleanup () {
+  rm -rf ../../v0.10.4
+}
+
+mkdir ../../v0.10.4
+
+. ../../nvm.sh
+
+nvm deactivate >/dev/null 2>&1
+
+INSTALL_ERROR_MSG="$(nvm install v0.10.5 --reinstall-packages-from=0.11 2>&1)"
+EXPECTED_ERROR_MSG="If --reinstall-packages-from is provided, it must point to an installed version of node."
+[ "~$INSTALL_ERROR_MSG" = "~$EXPECTED_ERROR_MSG" ] \
+  || die ""nvm install --reinstall-packages-from" should fail when given an uninstalled version: expected '$EXPECTED_ERROR_MSG', got '$INSTALL_ERROR_MSG'"
+
+INSTALL_EXIT_CODE="$(nvm install v0.10.5 --reinstall-packages-from=0.11 >/dev/null 2>&1; echo $?)"
+[ "~$INSTALL_EXIT_CODE" = "~5" ] \
+  || die ""nvm install --reinstall-packages-from" should exit with code 5 when given an uninstalled version, got $INSTALL_EXIT_CODE"
+
+INSTALL_ERROR_MSG="$(nvm install v0.10.5 --reinstall-packages-from=0.10.5 2>&1)"
+EXPECTED_ERROR_MSG="You can't reinstall global packages from the same version of node you're installing."
+[ "~$INSTALL_ERROR_MSG" = "~$EXPECTED_ERROR_MSG" ] \
+  || die ""nvm install --reinstall-packages-from" should fail when given the same version: expected '$EXPECTED_ERROR_MSG', got '$INSTALL_ERROR_MSG'"
+
+INSTALL_EXIT_CODE="$(nvm install v0.10.5 --reinstall-packages-from=0.10.5 >/dev/null 2>&1; echo $?)"
+[ "~$INSTALL_EXIT_CODE" = "~4" ] \
+  || die ""nvm install --reinstall-packages-from" should exit with code 4 when given the same version, got $INSTALL_EXIT_CODE"
+
--- a/test/fast/Running
+++ b/test/fast/Running
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+[ "$(nvm install invalid.invalid 2>&1)" = "Version 'invalid.invalid' not found - try \`nvm ls-remote\` to browse available versions." ] || die "nvm installing an invalid version did not print a nice error message"
+
--- a/test/fast/Running
+++ b/test/fast/Running
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+fail () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+type nvm > /dev/null 2>&1 || fail "NVM not loaded"
+
+nvm unload
+
+type nvm > /dev/null 2>&1 && fail "NVM not unloaded" || exit 0
+
--- a/test/fast/Running
+++ b/test/fast/Running
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+
+cleanup() {
+  rm -rf ../../alias/foo
+}
+
+. ../../nvm.sh
+
+echo 'foo' > ../../alias/foo
+
+OUTPUT="$(nvm use foo 2>&1)"
+EXPECTED_OUTPUT='The alias "foo" leads to an infinite loop. Aborting.'
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] \
+  || die "'nvm use foo' did not output '$EXPECTED_OUTPUT'; got '$OUTPUT'"
+
+EXIT_CODE="$(nvm use foo 2>/dev/null ; echo $?)"
+[ "_$EXIT_CODE" = "_8" ] || die "Expected exit code 8; got $EXIT_CODE"
+
+cleanup;
+
--- a/test/fast/Running
+++ b/test/fast/Running
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+nvm_has_system_node() { return 0; }
+[ "$(nvm use system 2>&1 | tail -n1)" = "Now using system version of node: $(node -v)." ] || die "Could not use system version of node"
+
+nvm_has_system_node() { return 1; }
+[ "$(nvm use system 2>&1 | tail -n1)" = "System version of node not found." ] || die "Did not report error, system node not found"
+nvm use system 2>&1 > /dev/null || [ $? -eq 127 ] || die "Did not return error code, system node not found"
+
--- a/test/fast/Running
+++ b/test/fast/Running
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+export NVM_SYMLINK_CURRENT=true
+. ../../nvm.sh
+
+rm -rf ../../v0.10.29
+mkdir ../../v0.10.29
+nvm use 0.10.29
+rmdir ../../v0.10.29
+
+if [ ! -L ../../current ];then
+  echo "Expected 'current' symlink to be created!"
+  exit 1
+fi
+
+oldLink="$(readlink ../../current)"
+
+if [ "$(basename $oldLink)" != 'v0.10.29' ];then
+  echo "Expected 'current' to point to v0.10.29 but was $oldLink"
+  exit 1
+fi
+
+rm -rf ../../v0.11.13
+mkdir ../../v0.11.13
+nvm use 0.11.13
+rmdir ../../v0.11.13
+
+newLink="$(readlink ../../current)"
+
+if [ "$(basename $newLink)" != 'v0.11.13' ];then
+  echo "Expected 'current' to point to v0.11.13 but was $newLink"
+  exit 1
+fi
--- a/test/fast/Running
+++ b/test/fast/Running
@@ -0,0 +1,84 @@
+#!/bin/bash
+
+. ../../nvm.sh
+
+TEST_NODE_VERSION="v0.10.29"
+
+TEST_COUNT=0
+TEST_PASSED=0
+TEST_FAILED=0
+
+function registerExpectedSymlink() {
+  registerResult ${1}
+}
+
+function registerExpectedNoSymlink() {
+  [ ${1} -ne 0 ]
+  registerResult $?
+}
+
+function registerResult() {
+  result=${1}
+
+  TEST_COUNT=$(($TEST_COUNT + 1))
+
+  [ ${result} -eq 0 ] \
+    && TEST_PASSED=$(($TEST_PASSED + 1)) \
+    || TEST_FAILED=$(($TEST_FAILED + 1))
+}
+
+function cleanup() {
+  rm -rf ../../${TEST_NODE_VERSION}
+  rm -f ../../current
+}
+
+function runNvmUse() {
+  mkdir ../../${TEST_NODE_VERSION}
+  nvm use ${TEST_NODE_VERSION} > /dev/null 2>&1
+  rmdir ../../${TEST_NODE_VERSION}
+}
+
+function isCurrentSymlinkPresent() {
+  [ -L ../../current ]
+}
+
+NVM_SYMLINK_CURRENT=false
+cleanup
+runNvmUse
+isCurrentSymlinkPresent && echo >&2 "Expected 'current' symlink not to be created when NVM_SYMLINK_CURRENT=false!"
+registerExpectedNoSymlink $?
+
+NVM_SYMLINK_CURRENT=true
+cleanup
+runNvmUse
+isCurrentSymlinkPresent || echo >&2 "Expected 'current' symlink to be created when NVM_SYMLINK_CURRENT=true!"
+registerExpectedSymlink $?
+
+NVM_SYMLINK_CURRENT=garbagevalue
+cleanup
+runNvmUse
+isCurrentSymlinkPresent && echo >&2 "Expected 'current' symlink not to be created when NVM_SYMLINK_CURRENT contains a string!"
+registerExpectedNoSymlink $?
+
+NVM_SYMLINK_CURRENT=0
+cleanup
+runNvmUse
+isCurrentSymlinkPresent && echo >&2 "Expected 'current' symlink not to be created when NVM_SYMLINK_CURRENT=0!"
+registerExpectedNoSymlink $?
+
+NVM_SYMLINK_CURRENT=1
+cleanup
+runNvmUse
+isCurrentSymlinkPresent && echo >&2 "Expected 'current' symlink not to be created when NVM_SYMLINK_CURRENT=1!"
+registerExpectedNoSymlink $?
+
+unset NVM_SYMLINK_CURRENT
+cleanup
+runNvmUse
+isCurrentSymlinkPresent && echo >&2 "Expected 'current' symlink not to be created when NVM_SYMLINK_CURRENT has been unset (default behaviour)!"
+registerExpectedNoSymlink $?
+
+cleanup
+
+[ ${TEST_FAILED} -ne 0 ] && echo "${TEST_COUNT} tested, ${TEST_PASSED} passed, ${TEST_FAILED} failed" && exit 1 || true
+
--- a/tests/nvm_alias
+++ b/tests/nvm_alias
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+
+cleanup () {
+  rm -rf ../../../alias/test
+}
+
+. ../../../nvm.sh
+
+OUTPUT="$(nvm_alias 2>&1)"
+EXPECTED_OUTPUT='An alias is required.'
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "'nvm_alias' produced wrong output; got $OUTPUT"
+
+EXIT_CODE="$(nvm_alias >/dev/null 2>&1 ; echo $?)"
+[ "_$EXIT_CODE" = "_1" ] || die "'nvm_alias' exited with $EXIT_CODE, expected 1"
+
+rm -rf ../../../alias/nonexistent
+
+OUTPUT="$(nvm_alias nonexistent 2>&1)"
+EXPECTED_OUTPUT='Alias does not exist.'
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "'nvm_alias nonexistent' produced wrong output; got $OUTPUT"
+
+EXIT_CODE="$(nvm_alias nonexistent >/dev/null 2>&1 ; echo $?)"
+[ "_$EXIT_CODE" = "_2" ] || die "'nvm_alias nonexistent' exited with $EXIT_CODE, expected 2"
+
+EXPECTED_OUTPUT="0.10"
+nvm alias test "$EXPECTED_OUTPUT" || die "'nvm alias test $EXPECTED_OUTPUT' failed"
+OUTPUT="$(nvm_alias test)"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "'nvm_alias test' produced wrong output; got $OUTPUT"
+
+cleanup
+
--- a/tests/nvm_checksum
+++ b/tests/nvm_checksum
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+cleanup () {
+  rm tmp/emptyfile tmp/testfile
+  rmdir tmp
+}
+die () { echo $@ ; cleanup; exit 1; }
+
+. ../../../nvm.sh
+
+mkdir -p tmp
+touch tmp/emptyfile
+echo -n "test" > tmp/testfile
+
+nvm_checksum tmp/emptyfile "da39a3ee5e6b4b0d3255bfef95601890afd80709" || die "nvm_checksum on an empty file did not match the SHA1 digest of the empty string"
+nvm_checksum tmp/testfile "da39a3ee5e6b4b0d3255bfef95601890afd80709" && die "nvm_checksum allowed a bad checksum"
+
+cleanup
--- a/tests/nvm_find_up
+++ b/tests/nvm_find_up
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+setup() {
+  cleanup
+  mkdir -p tmp_nvm_find_up/a/b/c/d
+  touch tmp_nvm_find_up/test
+  touch tmp_nvm_find_up/a/b/c/test
+}
+cleanup () {
+  rm -rf tmp_nvm_find_up
+}
+
+. ../../../nvm.sh
+
+setup
+
+TEST_DIR="$PWD"
+
+[ "~$(PWD=$TEST_DIR/tmp_nvm_find_up/a nvm_find_up 'test')" = "~$TEST_DIR/tmp_nvm_find_up" ] || die "failed to find 1 dir up"
+[ "~$(PWD=$TEST_DIR/tmp_nvm_find_up/a/b nvm_find_up 'test')" = "~$TEST_DIR/tmp_nvm_find_up" ] || die "failed to find 2 dirs up"
+[ "~$(PWD=$TEST_DIR/tmp_nvm_find_up/a/b/c nvm_find_up 'test')" = "~$TEST_DIR/tmp_nvm_find_up/a/b/c" ] || die "failed to find in current dir"
+[ "~$(PWD=$TEST_DIR/tmp_nvm_find_up/a/b/c/d nvm_find_up 'test')" = "~$TEST_DIR/tmp_nvm_find_up/a/b/c" ] || die "failed to find 1 level up from current dir"
+
+cleanup
+
--- a/tests/nvm_format_version
+++ b/tests/nvm_format_version
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+OUTPUT="$(nvm_format_version 0.1.2)"
+EXPECTED_OUTPUT="v0.1.2"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm_format_version 0.1.2 did not return $EXPECTED_OUTPUT; got $OUTPUT"
+
+OUTPUT="$(nvm_format_version 0.1)"
+EXPECTED_OUTPUT="v0.1.0"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm_format_version 0.1.0 did not return $EXPECTED_OUTPUT; got $OUTPUT"
+
--- a/tests/nvm_get_latest
+++ b/tests/nvm_get_latest
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+
+cleanup() {
+  unset -f nvm_has
+}
+
+. ../../../nvm.sh
+
+nvm_has() { return 1 ; }
+
+OUTPUT="$(nvm_get_latest 2>&1)"
+EXIT_CODE="$(nvm_get_latest >/dev/null 2>&1 ; echo $?)"
+[ "_$OUTPUT" = "_nvm needs curl or wget to proceed." ] \
+  || die "no curl/wget did not report correct error message, got '$OUTPUT'"
+[ "_$EXIT_CODE" = "_1" ] \
+  || die "no curl/wget did not exit with code 1, got $EXIT_CODE"
+
+cleanup
--- a/test/fast/Unit
+++ b/test/fast/Unit
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+nvm_has cat && type cat > /dev/null || die 'nvm_has locates "cat" properly'
+
+[ "~$(nvm_has foobarbaz 2>&1)" = "~" ] || die "nvm_has does not suppress error output"
+
+! nvm_has foobarbaz && ! type foobarbaz >/dev/null 2>&1 || die "nvm_has does not return a nonzero exit code when not found"
+
--- a/tests/nvm_has_system_node
+++ b/tests/nvm_has_system_node
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+cleanup () {
+  rm ../../../v0.1.2/node
+  rmdir ../../../v0.1.2
+}
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+mkdir ../../../v0.1.2
+touch ../../../v0.1.2/node
+
+nvm use 0.1.2
+
+if command -v node; then
+  nvm_has_system_node
+else
+  ! nvm_has_system_node
+fi
+
+nvm deactivate /dev/null 2>&1
+
+if command -v node; then
+  nvm_has_system_node
+else
+  ! nvm_has_system_node
+fi
+
--- a/tests/nvm_ls_current
+++ b/tests/nvm_ls_current
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+TEST_PWD=$(pwd)
+TEST_DIR="$TEST_PWD/nvm_ls_current_tmp"
+
+cleanup() { rm -rf "$TEST_DIR"; unset -f return_zero; unalias node; }
+die () { echo $@ ; cleanup ; exit 1; }
+
+. ../../../nvm.sh
+
+return_zero () { return 0; }
+
+[ "$(nvm deactivate > /dev/null 2>&1 ; nvm_ls_current)" = "system" ] || die 'when deactivated, did not return "system"'
+
+rm -rf "$TEST_DIR"
+mkdir "$TEST_DIR"
+ln -s "$(command which which)" "$TEST_DIR/which"
+ln -s "$(command which dirname)" "$TEST_DIR/dirname"
+
+[ "$(PATH="$TEST_DIR" nvm_ls_current)" = "none" ] || die 'when node not installed, nvm_ls_current did not return "none"'
+[ "@$(PATH="$TEST_DIR" nvm_ls_current 2> /dev/stdout 1> /dev/null)@" = "@@" ] || die 'when node not installed, nvm_ls_current returned error output'
+
+echo "#!/bin/bash" > "$TEST_DIR/node"
+echo "echo 'VERSION FOO!'" > "$TEST_DIR/node"
+chmod a+x "$TEST_DIR/node"
+
+[ "$(alias nvm_tree_contains_path='return_zero' && PATH="$TEST_DIR" nvm_ls_current)" = "VERSION FOO!" ] || die 'when activated, did not return nvm node version'
+
+alias node='node --harmony'
+[ "$(alias nvm_tree_contains_path='return_zero' && PATH="$TEST_DIR" nvm_ls_current)" = "VERSION FOO!" ] || die 'when activated and node aliased, did not return nvm node version'
+
+cleanup
--- a/tests/nvm_ls_remote
+++ b/tests/nvm_ls_remote
@@ -0,0 +1,485 @@
+#!/bin/sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+
+cleanup() {
+  unset -f nvm_download
+}
+
+. ../../../nvm.sh
+
+# sample output at the time the test was written
+nvm_download() {
+  echo 'foo "v0.10.0'
+  echo 'foo "v0.10.0'
+  echo 'foo "v0.10.1'
+  echo 'foo "v0.10.1'
+  echo 'foo "v0.10.10'
+  echo 'foo "v0.10.10'
+  echo 'foo "v0.10.11'
+  echo 'foo "v0.10.11'
+  echo 'foo "v0.10.12'
+  echo 'foo "v0.10.12'
+  echo 'foo "v0.10.13'
+  echo 'foo "v0.10.13'
+  echo 'foo "v0.10.14'
+  echo 'foo "v0.10.14'
+  echo 'foo "v0.10.15'
+  echo 'foo "v0.10.15'
+  echo 'foo "v0.10.16'
+  echo 'foo "v0.10.16'
+  echo 'foo "v0.10.16'
+  echo 'foo "v0.10.16'
+  echo 'foo "v0.10.17'
+  echo 'foo "v0.10.17'
+  echo 'foo "v0.10.18'
+  echo 'foo "v0.10.18'
+  echo 'foo "v0.10.19'
+  echo 'foo "v0.10.19'
+  echo 'foo "v0.10.2'
+  echo 'foo "v0.10.2'
+  echo 'foo "v0.10.20'
+  echo 'foo "v0.10.20'
+  echo 'foo "v0.10.21'
+  echo 'foo "v0.10.21'
+  echo 'foo "v0.10.22'
+  echo 'foo "v0.10.22'
+  echo 'foo "v0.10.23'
+  echo 'foo "v0.10.23'
+  echo 'foo "v0.10.24'
+  echo 'foo "v0.10.24'
+  echo 'foo "v0.10.25'
+  echo 'foo "v0.10.25'
+  echo 'foo "v0.10.26'
+  echo 'foo "v0.10.26'
+  echo 'foo "v0.10.27'
+  echo 'foo "v0.10.27'
+  echo 'foo "v0.10.28'
+  echo 'foo "v0.10.28'
+  echo 'foo "v0.10.29'
+  echo 'foo "v0.10.29'
+  echo 'foo "v0.10.3'
+  echo 'foo "v0.10.3'
+  echo 'foo "v0.10.30'
+  echo 'foo "v0.10.30'
+  echo 'foo "v0.10.31'
+  echo 'foo "v0.10.31'
+  echo 'foo "v0.10.32'
+  echo 'foo "v0.10.32'
+  echo 'foo "v0.10.4'
+  echo 'foo "v0.10.4'
+  echo 'foo "v0.10.5'
+  echo 'foo "v0.10.5'
+  echo 'foo "v0.10.6'
+  echo 'foo "v0.10.6'
+  echo 'foo "v0.10.7'
+  echo 'foo "v0.10.7'
+  echo 'foo "v0.10.8'
+  echo 'foo "v0.10.8'
+  echo 'foo "v0.10.9'
+  echo 'foo "v0.10.9'
+  echo 'foo "v0.11.0'
+  echo 'foo "v0.11.0'
+  echo 'foo "v0.11.1'
+  echo 'foo "v0.11.1'
+  echo 'foo "v0.11.10'
+  echo 'foo "v0.11.10'
+  echo 'foo "v0.11.11'
+  echo 'foo "v0.11.11'
+  echo 'foo "v0.11.12'
+  echo 'foo "v0.11.12'
+  echo 'foo "v0.11.13'
+  echo 'foo "v0.11.13'
+  echo 'foo "v0.11.14'
+  echo 'foo "v0.11.14'
+  echo 'foo "v0.11.2'
+  echo 'foo "v0.11.2'
+  echo 'foo "v0.11.3'
+  echo 'foo "v0.11.3'
+  echo 'foo "v0.11.4'
+  echo 'foo "v0.11.4'
+  echo 'foo "v0.11.5'
+  echo 'foo "v0.11.5'
+  echo 'foo "v0.11.6'
+  echo 'foo "v0.11.6'
+  echo 'foo "v0.11.7'
+  echo 'foo "v0.11.7'
+  echo 'foo "v0.11.8'
+  echo 'foo "v0.11.8'
+  echo 'foo "v0.11.9'
+  echo 'foo "v0.11.9'
+  echo 'foo "v0.5.1'
+  echo 'foo "v0.5.1'
+  echo 'foo "v0.5.10'
+  echo 'foo "v0.5.10'
+  echo 'foo "v0.5.2'
+  echo 'foo "v0.5.2'
+  echo 'foo "v0.5.3'
+  echo 'foo "v0.5.3'
+  echo 'foo "v0.5.4'
+  echo 'foo "v0.5.4'
+  echo 'foo "v0.5.5'
+  echo 'foo "v0.5.5'
+  echo 'foo "v0.5.6'
+  echo 'foo "v0.5.6'
+  echo 'foo "v0.5.7'
+  echo 'foo "v0.5.7'
+  echo 'foo "v0.5.8'
+  echo 'foo "v0.5.8'
+  echo 'foo "v0.5.9'
+  echo 'foo "v0.5.9'
+  echo 'foo "v0.6.0'
+  echo 'foo "v0.6.0'
+  echo 'foo "v0.6.1'
+  echo 'foo "v0.6.1'
+  echo 'foo "v0.6.10'
+  echo 'foo "v0.6.10'
+  echo 'foo "v0.6.11'
+  echo 'foo "v0.6.11'
+  echo 'foo "v0.6.12'
+  echo 'foo "v0.6.12'
+  echo 'foo "v0.6.13'
+  echo 'foo "v0.6.13'
+  echo 'foo "v0.6.14'
+  echo 'foo "v0.6.14'
+  echo 'foo "v0.6.15'
+  echo 'foo "v0.6.15'
+  echo 'foo "v0.6.16'
+  echo 'foo "v0.6.16'
+  echo 'foo "v0.6.17'
+  echo 'foo "v0.6.17'
+  echo 'foo "v0.6.18'
+  echo 'foo "v0.6.18'
+  echo 'foo "v0.6.19'
+  echo 'foo "v0.6.19'
+  echo 'foo "v0.6.2'
+  echo 'foo "v0.6.2'
+  echo 'foo "v0.6.20'
+  echo 'foo "v0.6.20'
+  echo 'foo "v0.6.21'
+  echo 'foo "v0.6.21'
+  echo 'foo "v0.6.3'
+  echo 'foo "v0.6.3'
+  echo 'foo "v0.6.4'
+  echo 'foo "v0.6.4'
+  echo 'foo "v0.6.5'
+  echo 'foo "v0.6.5'
+  echo 'foo "v0.6.6'
+  echo 'foo "v0.6.6'
+  echo 'foo "v0.6.7'
+  echo 'foo "v0.6.7'
+  echo 'foo "v0.6.8'
+  echo 'foo "v0.6.8'
+  echo 'foo "v0.6.9'
+  echo 'foo "v0.6.9'
+  echo 'foo "v0.7.0'
+  echo 'foo "v0.7.0'
+  echo 'foo "v0.7.1'
+  echo 'foo "v0.7.1'
+  echo 'foo "v0.7.10'
+  echo 'foo "v0.7.10'
+  echo 'foo "v0.7.11'
+  echo 'foo "v0.7.11'
+  echo 'foo "v0.7.12'
+  echo 'foo "v0.7.12'
+  echo 'foo "v0.7.2'
+  echo 'foo "v0.7.2'
+  echo 'foo "v0.7.3'
+  echo 'foo "v0.7.3'
+  echo 'foo "v0.7.4'
+  echo 'foo "v0.7.4'
+  echo 'foo "v0.7.5'
+  echo 'foo "v0.7.5'
+  echo 'foo "v0.7.6'
+  echo 'foo "v0.7.6'
+  echo 'foo "v0.7.7'
+  echo 'foo "v0.7.7'
+  echo 'foo "v0.7.8'
+  echo 'foo "v0.7.8'
+  echo 'foo "v0.7.9'
+  echo 'foo "v0.7.9'
+  echo 'foo "v0.8.0'
+  echo 'foo "v0.8.0'
+  echo 'foo "v0.8.1'
+  echo 'foo "v0.8.1'
+  echo 'foo "v0.8.10'
+  echo 'foo "v0.8.10'
+  echo 'foo "v0.8.11'
+  echo 'foo "v0.8.11'
+  echo 'foo "v0.8.12'
+  echo 'foo "v0.8.12'
+  echo 'foo "v0.8.13'
+  echo 'foo "v0.8.13'
+  echo 'foo "v0.8.14'
+  echo 'foo "v0.8.14'
+  echo 'foo "v0.8.15'
+  echo 'foo "v0.8.15'
+  echo 'foo "v0.8.16'
+  echo 'foo "v0.8.16'
+  echo 'foo "v0.8.17'
+  echo 'foo "v0.8.17'
+  echo 'foo "v0.8.18'
+  echo 'foo "v0.8.18'
+  echo 'foo "v0.8.19'
+  echo 'foo "v0.8.19'
+  echo 'foo "v0.8.2'
+  echo 'foo "v0.8.2'
+  echo 'foo "v0.8.20'
+  echo 'foo "v0.8.20'
+  echo 'foo "v0.8.21'
+  echo 'foo "v0.8.21'
+  echo 'foo "v0.8.22'
+  echo 'foo "v0.8.22'
+  echo 'foo "v0.8.23'
+  echo 'foo "v0.8.23'
+  echo 'foo "v0.8.24'
+  echo 'foo "v0.8.24'
+  echo 'foo "v0.8.25'
+  echo 'foo "v0.8.25'
+  echo 'foo "v0.8.26'
+  echo 'foo "v0.8.26'
+  echo 'foo "v0.8.27'
+  echo 'foo "v0.8.27'
+  echo 'foo "v0.8.28'
+  echo 'foo "v0.8.28'
+  echo 'foo "v0.8.3'
+  echo 'foo "v0.8.3'
+  echo 'foo "v0.8.4'
+  echo 'foo "v0.8.4'
+  echo 'foo "v0.8.5'
+  echo 'foo "v0.8.5'
+  echo 'foo "v0.8.6'
+  echo 'foo "v0.8.6'
+  echo 'foo "v0.8.7'
+  echo 'foo "v0.8.7'
+  echo 'foo "v0.8.8'
+  echo 'foo "v0.8.8'
+  echo 'foo "v0.8.9'
+  echo 'foo "v0.8.9'
+  echo 'foo "v0.9.0'
+  echo 'foo "v0.9.0'
+  echo 'foo "v0.9.1'
+  echo 'foo "v0.9.1'
+  echo 'foo "v0.9.10'
+  echo 'foo "v0.9.10'
+  echo 'foo "v0.9.11'
+  echo 'foo "v0.9.11'
+  echo 'foo "v0.9.12'
+  echo 'foo "v0.9.12'
+  echo 'foo "v0.9.2'
+  echo 'foo "v0.9.2'
+  echo 'foo "v0.9.3'
+  echo 'foo "v0.9.3'
+  echo 'foo "v0.9.4'
+  echo 'foo "v0.9.4'
+  echo 'foo "v0.9.5'
+  echo 'foo "v0.9.5'
+  echo 'foo "v0.9.6'
+  echo 'foo "v0.9.6'
+  echo 'foo "v0.9.7'
+  echo 'foo "v0.9.7'
+  echo 'foo "v0.9.8'
+  echo 'foo "v0.9.8'
+  echo 'foo "v0.9.9'
+  echo 'foo "v0.9.9'
+  echo 'foo "v0.1.100'
+  echo 'foo "v0.1.100'
+  echo 'foo "v0.1.101'
+  echo 'foo "v0.1.101'
+  echo 'foo "v0.1.102'
+  echo 'foo "v0.1.102'
+  echo 'foo "v0.1.103'
+  echo 'foo "v0.1.103'
+  echo 'foo "v0.1.104'
+  echo 'foo "v0.1.104'
+  echo 'foo "v0.1.14'
+  echo 'foo "v0.1.14'
+  echo 'foo "v0.1.15'
+  echo 'foo "v0.1.15'
+  echo 'foo "v0.1.16'
+  echo 'foo "v0.1.16'
+  echo 'foo "v0.1.17'
+  echo 'foo "v0.1.17'
+  echo 'foo "v0.1.18'
+  echo 'foo "v0.1.18'
+  echo 'foo "v0.1.19'
+  echo 'foo "v0.1.19'
+  echo 'foo "v0.1.20'
+  echo 'foo "v0.1.20'
+  echo 'foo "v0.1.21'
+  echo 'foo "v0.1.21'
+  echo 'foo "v0.1.22'
+  echo 'foo "v0.1.22'
+  echo 'foo "v0.1.23'
+  echo 'foo "v0.1.23'
+  echo 'foo "v0.1.24'
+  echo 'foo "v0.1.24'
+  echo 'foo "v0.1.25'
+  echo 'foo "v0.1.25'
+  echo 'foo "v0.1.26'
+  echo 'foo "v0.1.26'
+  echo 'foo "v0.1.27'
+  echo 'foo "v0.1.27'
+  echo 'foo "v0.1.28'
+  echo 'foo "v0.1.28'
+  echo 'foo "v0.1.29'
+  echo 'foo "v0.1.29'
+  echo 'foo "v0.1.30'
+  echo 'foo "v0.1.30'
+  echo 'foo "v0.1.31'
+  echo 'foo "v0.1.31'
+  echo 'foo "v0.1.32'
+  echo 'foo "v0.1.32'
+  echo 'foo "v0.1.33'
+  echo 'foo "v0.1.33'
+  echo 'foo "v0.1.90'
+  echo 'foo "v0.1.90'
+  echo 'foo "v0.1.91'
+  echo 'foo "v0.1.91'
+  echo 'foo "v0.1.92'
+  echo 'foo "v0.1.92'
+  echo 'foo "v0.1.93'
+  echo 'foo "v0.1.93'
+  echo 'foo "v0.1.94'
+  echo 'foo "v0.1.94'
+  echo 'foo "v0.1.95'
+  echo 'foo "v0.1.95'
+  echo 'foo "v0.1.96'
+  echo 'foo "v0.1.96'
+  echo 'foo "v0.1.97'
+  echo 'foo "v0.1.97'
+  echo 'foo "v0.1.98'
+  echo 'foo "v0.1.98'
+  echo 'foo "v0.1.99'
+  echo 'foo "v0.1.99'
+  echo 'foo "v0.10.14'
+  echo 'foo "v0.10.14'
+  echo 'foo "v0.2.0'
+  echo 'foo "v0.2.0'
+  echo 'foo "v0.2.1'
+  echo 'foo "v0.2.1'
+  echo 'foo "v0.2.2'
+  echo 'foo "v0.2.2'
+  echo 'foo "v0.2.3'
+  echo 'foo "v0.2.3'
+  echo 'foo "v0.2.4'
+  echo 'foo "v0.2.4'
+  echo 'foo "v0.2.5'
+  echo 'foo "v0.2.5'
+  echo 'foo "v0.2.6'
+  echo 'foo "v0.2.6'
+  echo 'foo "v0.3.0'
+  echo 'foo "v0.3.0'
+  echo 'foo "v0.3.1'
+  echo 'foo "v0.3.1'
+  echo 'foo "v0.3.2'
+  echo 'foo "v0.3.2'
+  echo 'foo "v0.3.3'
+  echo 'foo "v0.3.3'
+  echo 'foo "v0.3.4'
+  echo 'foo "v0.3.4'
+  echo 'foo "v0.3.5'
+  echo 'foo "v0.3.5'
+  echo 'foo "v0.3.6'
+  echo 'foo "v0.3.6'
+  echo 'foo "v0.3.7'
+  echo 'foo "v0.3.7'
+  echo 'foo "v0.3.8'
+  echo 'foo "v0.3.8'
+  echo 'foo "v0.4.0'
+  echo 'foo "v0.4.0'
+  echo 'foo "v0.4.1'
+  echo 'foo "v0.4.1'
+  echo 'foo "v0.4.10'
+  echo 'foo "v0.4.10'
+  echo 'foo "v0.4.11'
+  echo 'foo "v0.4.11'
+  echo 'foo "v0.4.12'
+  echo 'foo "v0.4.12'
+  echo 'foo "v0.4.2'
+  echo 'foo "v0.4.2'
+  echo 'foo "v0.4.3'
+  echo 'foo "v0.4.3'
+  echo 'foo "v0.4.4'
+  echo 'foo "v0.4.4'
+  echo 'foo "v0.4.5'
+  echo 'foo "v0.4.5'
+  echo 'foo "v0.4.6'
+  echo 'foo "v0.4.6'
+  echo 'foo "v0.4.7'
+  echo 'foo "v0.4.7'
+  echo 'foo "v0.4.8'
+  echo 'foo "v0.4.8'
+  echo 'foo "v0.4.9'
+  echo 'foo "v0.4.9'
+  echo 'foo "v0.5.0'
+  echo 'foo "v0.5.0'
+  echo 'foo "v0.6.1'
+  echo 'foo "v0.6.1'
+  echo 'foo "v0.6.10'
+  echo 'foo "v0.6.10'
+  echo 'foo "v0.6.11'
+  echo 'foo "v0.6.11'
+  echo 'foo "v0.6.12'
+  echo 'foo "v0.6.12'
+  echo 'foo "v0.6.13'
+  echo 'foo "v0.6.13'
+  echo 'foo "v0.6.2'
+  echo 'foo "v0.6.2'
+  echo 'foo "v0.6.3'
+  echo 'foo "v0.6.3'
+  echo 'foo "v0.6.4'
+  echo 'foo "v0.6.4'
+  echo 'foo "v0.6.5'
+  echo 'foo "v0.6.5'
+  echo 'foo "v0.6.6'
+  echo 'foo "v0.6.6'
+  echo 'foo "v0.6.7'
+  echo 'foo "v0.6.7'
+  echo 'foo "v0.6.8'
+  echo 'foo "v0.6.8'
+  echo 'foo "v0.6.9'
+  echo 'foo "v0.6.9'
+}
+
+OUTPUT="$(nvm_ls_remote foo)"
+EXIT_CODE="$(nvm_ls_remote foo >/dev/null 2>&1 ; echo $?)"
+[ "_$OUTPUT" = "_N/A" ] || die "nonexistent version did not report N/A"
+[ "_$EXIT_CODE" = "_3" ] || die "nonexistent version did not exit with code 3, got $EXIT_CODE"
+
+OUTPUT="$(nvm_ls_remote)"
+EXPECTED_OUTPUT="$(nvm_download | \egrep -o 'v[0-9]+\.[0-9]+\.[0-9]+' | sort -t. -u -k 1.2,1n -k 2,2n -k 3,3n)"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "bare nvm_ls_remote did not output expected sorted versions; got $(echo "$OUTPUT") expected $(echo "$EXPECTED_OUTPUT")"
+
+OUTPUT="$(nvm_ls_remote 0.3)"
+EXPECTED_OUTPUT="v0.3.0
+v0.3.1
+v0.3.2
+v0.3.3
+v0.3.4
+v0.3.5
+v0.3.6
+v0.3.7
+v0.3.8"
+
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm_ls_remote 0.3 did not output 0.3.x versions; got $OUTPUT"
+
+# Sanity checks
+OUTPUT="$(nvm_print_implicit_alias remote stable)"
+EXPECTED_OUTPUT="0.10"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm_print_implicit_alias remote stable did not output $EXPECTED_OUTPUT; got $OUTPUT"
+
+OUTPUT="$(nvm_print_implicit_alias remote unstable)"
+EXPECTED_OUTPUT="0.11"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm_print_implicit_alias remote unstable did not output $EXPECTED_OUTPUT; got $OUTPUT"
+
+OUTPUT="$(nvm_ls_remote stable)"
+EXPECTED_OUTPUT="v0.10.32"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm_ls_remote stable did not output $EXPECTED_OUTPUT; got $OUTPUT"
+
+OUTPUT="$(nvm_ls_remote unstable)"
+EXPECTED_OUTPUT="v0.11.14"
+[ "_$OUTPUT" = "_$EXPECTED_OUTPUT" ] || die "nvm_ls_remote unstable did not output $EXPECTED_OUTPUT; got $OUTPUT"
+
+cleanup
+
--- a/tests/nvm_num_version_groups
+++ b/tests/nvm_num_version_groups
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+[ "~$(nvm_num_version_groups)" = "~0" ] || die "no args should give 0"
+[ "~$(nvm_num_version_groups a)" = "~1" ] || die "one letter should give 1"
+
+[ "~$(nvm_num_version_groups 1)" = "~1" ] || die "1 should give 1"
+[ "~$(nvm_num_version_groups v1)" = "~1" ] || die "v1 should give 1"
+[ "~$(nvm_num_version_groups v1.)" = "~1" ] || die "v1. should give 1"
+
+[ "~$(nvm_num_version_groups 1.2)" = "~2" ] || die "1.2 should give 2"
+[ "~$(nvm_num_version_groups v1.2)" = "~2" ] || die "v1.2 should give 2"
+[ "~$(nvm_num_version_groups v1.2.)" = "~2" ] || die "v1.2. should give 2"
+
+[ "~$(nvm_num_version_groups 1.2.3)" = "~3" ] || die "1.2.3 should give 3"
+[ "~$(nvm_num_version_groups v1.2.3)" = "~3" ] || die "v1.2.3 should give 3"
+[ "~$(nvm_num_version_groups v1.2.3.)" = "~3" ] || die "v1.2.3. should give 3"
+
--- a/tests/nvm_prepend_path
+++ b/tests/nvm_prepend_path
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+TEST_PATH=/usr/bin:/usr/local/bin
+
+NEW_PATH=`nvm_prepend_path "$TEST_PATH" "$NVM_DIR/v0.2.5/bin"`
+
+[ "$NEW_PATH" = "$NVM_DIR/v0.2.5/bin:/usr/bin:/usr/local/bin" ] || die "Not correctly prepended: $NEW_PATH "
+
+
+EMPTY_PATH=
+
+NEW_PATH=`nvm_prepend_path "$EMPTY_PATH" "$NVM_DIR/v0.2.5/bin"`
+
+[ "$NEW_PATH" = "$NVM_DIR/v0.2.5/bin" ] || die "Not correctly prepended: $NEW_PATH "
--- a/tests/nvm_print_implicit_alias
+++ b/tests/nvm_print_implicit_alias
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+EXPECTED_FIRST_MSG="nvm_print_implicit_alias must be specified with local or remote as the first argument."
+[ "_$(nvm_print_implicit_alias 2>&1)" = "_$EXPECTED_FIRST_MSG" ] \
+  || die "nvm_print_implicit_alias did not require local|remote as first argument"
+[ "_$(nvm_print_implicit_alias foo 2>&1)" = "_$EXPECTED_FIRST_MSG" ] \
+  || die "nvm_print_implicit_alias did not require local|remote as first argument"
+
+FIRST_EXIT_CODE="$(nvm_print_implicit_alias > /dev/null 2>&1 ; echo $?)"
+[ "_$FIRST_EXIT_CODE" = "_1" ] \
+  || die "nvm_print_implicit_alias without local|remote had wrong exit code: expected 1, got $FIRST_EXIT_CODE"
+
+EXPECTED_SECOND_MSG="Only implicit aliases 'stable' and 'unstable' are supported."
+[ "_$(nvm_print_implicit_alias local 2>&1)" = "_$EXPECTED_SECOND_MSG" ] \
+  || die "nvm_print_implicit_alias did not require stable|unstable as second argument"
+[ "_$(nvm_print_implicit_alias local foo 2>&1)" = "_$EXPECTED_SECOND_MSG" ] \
+  || die "nvm_print_implicit_alias did not require stable|unstable as second argument"
+
+SECOND_EXIT_CODE="$(nvm_print_implicit_alias local > /dev/null 2>&1 ; echo $?)"
+[ "_$SECOND_EXIT_CODE" = "_2" ] \
+  || die "nvm_print_implicit_alias without stable|unstable had wrong exit code: expected 2, got $SECOND_EXIT_CODE"
+
--- a/tests/nvm_print_implicit_alias
+++ b/tests/nvm_print_implicit_alias
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+cleanup() {
+  rm -rf ../../../v0.2.3
+  rm -rf ../../../v0.3.4
+  rm -rf ../../../v0.4.6
+  rm -rf ../../../v0.5.7
+  rm -rf ../../../v0.7.7
+  unset -f nvm_ls_remote
+}
+
+. ../../../nvm.sh
+
+mkdir ../../../v0.2.3
+mkdir ../../../v0.3.4
+mkdir ../../../v0.4.6
+mkdir ../../../v0.5.7
+mkdir ../../../v0.7.7
+
+LATEST_STABLE="$(nvm_print_implicit_alias local stable)"
+[ "_$LATEST_STABLE" = "_0.4" ] || die "local stable is not latest even minor: expected 0.4, got $LATEST_STABLE"
+
+LATEST_UNSTABLE="$(nvm_print_implicit_alias local unstable)"
+[ "_$LATEST_UNSTABLE" = "_0.7" ] || die "local unstable is not latest odd minor: expected 0.7, got $LATEST_UNSTABLE"
+
+nvm_ls_remote() {
+  echo "v0.4.3"
+  echo "v0.5.4"
+  echo "v0.6.6"
+  echo "v0.7.7"
+  echo "v0.9.7"
+  echo "v0.4.3"
+  echo "v0.5.4"
+  echo "v0.6.6"
+  echo "v0.7.7"
+  echo "v0.9.7"
+}
+
+LATEST_STABLE="$(nvm_print_implicit_alias remote stable)"
+[ "_$LATEST_STABLE" = "_0.6" ] || die "remote stable is not latest even minor: expected 0.6, got $LATEST_STABLE"
+
+LATEST_UNSTABLE="$(nvm_print_implicit_alias remote unstable)"
+[ "_$LATEST_UNSTABLE" = "_0.9" ] || die "remote unstable is not latest odd minor: expected 0.9, got $LATEST_UNSTABLE"
+
+cleanup
+
--- a/tests/nvm_remote_version
+++ b/tests/nvm_remote_version
@@ -0,0 +1,35 @@
+#!/bin/sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+
+cleanup() {
+  unset -f nvm_ls_remote
+}
+
+. ../../../nvm.sh
+
+nvm_ls_remote() {
+  echo "N/A"
+}
+
+OUTPUT="$(nvm_remote_version foo)"
+EXIT_CODE="$(nvm_remote_version foo >/dev/null 2>&1 ; echo $?)"
+
+[ "_$OUTPUT" = "_N/A" ] || die "nonexistent version did not report N/A"
+[ "_$EXIT_CODE" = "_3" ] || die "nonexistent version did not exit with code 3, got $EXIT_CODE"
+
+nvm_ls_remote() {
+  echo "test output"
+  echo "more test output"
+  echo "pattern received: _$1_"
+}
+
+OUTPUT="$(nvm_remote_version foo)"
+EXIT_CODE="$(nvm_remote_version foo >/dev/null 2>&1 ; echo $?)"
+
+[ "_$OUTPUT" = "_pattern received: _foo_" ] \
+  || die "nvm_remote_version foo did not return last line only of nvm_ls_remote foo; got $OUTPUT"
+[ "_$EXIT_CODE" = "_0" ] || die "nvm_remote_version foo did not exit with 0, got $EXIT_CODE"
+
+cleanup
+
--- a/tests/nvm_strip_path
+++ b/tests/nvm_strip_path
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+TEST_PATH=$NVM_DIR/v0.10.5/bin:/usr/bin:$NVM_DIR/v0.11.5/bin:$NVM_DIR/v0.9.5/bin:/usr/local/bin:$NVM_DIR/v0.2.5/bin
+
+STRIPPED_PATH=`nvm_strip_path "$TEST_PATH" "/bin"`
+
+[ "$STRIPPED_PATH" = "/usr/bin:/usr/local/bin" ] || die "Not correctly stripped: $STRIPPED_PATH "
--- a/tests/nvm_tree_contains_path
+++ b/tests/nvm_tree_contains_path
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+cleanup () {
+  rm tmp/node
+  rmdir tmp
+  rm tmp2/node
+  rmdir tmp2
+}
+die () { echo $@ ; cleanup; exit 1; }
+
+. ../../../nvm.sh
+
+mkdir -p tmp
+touch tmp/node
+mkdir -p tmp2
+touch tmp2/node
+
+[ "$(nvm_tree_contains_path 2>&1)" = "both the tree and the node path are required" ] || die 'incorrect error message with no args'
+[ "$(nvm_tree_contains_path > /dev/null 2>&1 ; echo $?)" = "2" ] || die 'incorrect error code with no args'
+[ "$(nvm_tree_contains_path tmp 2>&1)" = "both the tree and the node path are required" ] || die 'incorrect error message with one arg'
+[ "$(nvm_tree_contains_path > /dev/null 2>&1 ; echo $?)" = "2" ] || die 'incorrect error code with one arg'
+
+nvm_tree_contains_path tmp tmp/node || die '"tmp" should contain "tmp/node"'
+
+nvm_tree_contains_path tmp tmp2/node && die '"tmp" should not contain "tmp2/node"'
+
+nvm_tree_contains_path tmp2 tmp2/node || die '"tmp2" should contain "tmp2/node"'
+
+nvm_tree_contains_path tmp2 tmp/node && die '"tmp2" should not contain "tmp/node"'
+
+cleanup
+
--- a/tests/nvm_validate_implicit_alias
+++ b/tests/nvm_validate_implicit_alias
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+EXPECTED_MSG="Only implicit aliases 'stable' and 'unstable' are supported."
+[ "_$(nvm_validate_implicit_alias 2>&1)" = "_$EXPECTED_MSG" ] \
+  || die "nvm_validate_implicit_alias did not require stable|unstable"
+[ "_$(nvm_validate_implicit_alias foo 2>&1)" = "_$EXPECTED_MSG" ] \
+  || die "nvm_validate_implicit_alias did not require stable|unstable"
+
+EXIT_CODE="$(nvm_validate_implicit_alias >/dev/null 2>&1 ; echo $?)"
+[ "_$EXIT_CODE" = "_1" ] \
+  || die "nvm_validate_implicit_alias without stable|unstable had wrong exit code: expected 1, got $EXIT_CODE"
+
+nvm_validate_implicit_alias stable || die "nvm_validate_implicit_alias stable did not exit 0"
+nvm_validate_implicit_alias unstable || die "nvm_validate_implicit_alias unstable did not exit 0"
+
--- a/tests/nvm_version_dir
+++ b/tests/nvm_version_dir
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+[ "$(nvm_version_dir)" = "$NVM_DIR/versions" ] || die '"nvm_version_dir" did not return new dir path'
+[ "$(nvm_version_dir new)" = "$(nvm_version_dir)" ] || die '"nvm_version_dir new" did not return new dir path'
+[ "$(nvm_version_dir old)" = "$NVM_DIR" ] || die '"nvm_version_dir old" did not return old dir path'
+[ "$(nvm_version_dir foo 2>&1)" = "unknown version dir" ] || die '"nvm_version_dir foo" did not error out'
+
--- a/tests/nvm_version_greater
+++ b/tests/nvm_version_greater
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+nvm_version_greater 0.10.0 0.2.12 || die '"nvm_version_greater 0.10.0 0.2.12" did not return true'
+
+if nvm_version_greater 0.10.0 0.20.12; then
+  die '"nvm_version_greater 0.10.0 0.20.12" returned true'
+fi
+
+if nvm_version_greater 0.10.0 0.10.0; then
+  die '"nvm_version_greater" returned false for the same two versions'
+fi
+
--- a/tests/nvm_version_path
+++ b/tests/nvm_version_path
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+[ "$(nvm_version_path foo)" = "$NVM_DIR/foo" ] || die '"nvm_version_path foo" did not return correct location'
+[ "$(nvm_version_path 2>&1)" = "version is required" ] || die '"nvm_version_path" did not error out'
+[ "$(nvm_version_path v0.11.0)" = "$NVM_DIR/v0.11.0" ] || die 'old version has the wrong path'
+[ "$(nvm_version_path v0.12.0)" = "$NVM_DIR/versions/v0.12.0" ] || die 'new version has the wrong path'
+
--- a/test/fast/setup_dir
+++ b/test/fast/setup_dir
@@ -9,5 +9,8 @@
  for SRC in v* src alias; do
    [ -e "$SRC" ] && mv "$SRC" bak
  done
+  if [ -d versions ]; then
+    mv versions bak
+  fi
  true
 )
--- a/test/install_script/nvm_detect_profile
+++ b/test/install_script/nvm_detect_profile
@@ -0,0 +1,67 @@
+#!/bin/sh
+
+cleanup () {
+  unset -f setup cleanup die
+  unset _PROFILE
+  rm -f .bashrc .bash_profile .zshrc .profile test_profile > /dev/null 2>&1
+}
+die () { echo $@ ; cleanup ; exit 1; }
+
+NVM_ENV=testing . ../../install.sh
+
+setup () {
+  touch .bashrc
+  touch .bash_profile
+  touch .zshrc
+  touch .profile
+  touch test_profile
+}
+
+#Let's hack $HOME
+HOME="."
+
+setup
+
+
+# $PROFILE points to a valid file, its path must be returned
+PROFILE="test_profile"
+_PROFILE=$(nvm_detect_profile)
+[ "_$_PROFILE" = "_$PROFILE" ] || die "nvm_detect_profile didn't pick \$PROFILE"
+
+# $PROFILE doesn't point to a valid file, its path must not be returned
+PROFILE="invalid_profile"
+_PROFILE=$(nvm_detect_profile)
+[ "_$_PROFILE" != "_$PROFILE" ] || die "nvm_detect_profile shouldn't pick \$PROFILE when it's not a valid file"
+
+
+# Below are tests for when $PROFILE is undefined
+rm test_profile
+unset PROFILE
+
+# It should favor .bashrc if file exists
+_PROFILE=$(nvm_detect_profile)
+[ "_$_PROFILE" = "_$HOME/.bashrc" ] || die "nvm_detect_profile should have selected .bashrc"
+
+rm .bashrc
+# Otherwise, it should favor .bash_profile if file exists
+_PROFILE=$(nvm_detect_profile)
+[ "_$_PROFILE" = "_$HOME/.bash_profile" ] || die "nvm_detect_profile should have selected .bash_profile"
+
+rm .bash_profile
+# Otherwise, it should favor .zshrc if file exists
+_PROFILE=$(nvm_detect_profile)
+[ "_$_PROFILE" = "_$HOME/.zshrc" ] || die "nvm_detect_profile should have selected .zshrc"
+
+rm .zshrc
+# Otherwise, it should favor .profile if file exists
+_PROFILE=$(nvm_detect_profile)
+[ "_$_PROFILE" = "_$HOME/.profile" ] || die "nvm_detect_profile should have selected .profile"
+
+rm .profile
+# It should be empty if none is found
+_PROFILE=$(nvm_detect_profile)
+[ -z "$_PROFILE" ] || die "nvm_detect_profile should have echo'ed an empty value"
+
+
+cleanup
+
--- a/test/install_script/nvm_do_install
+++ b/test/install_script/nvm_do_install
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+NVM_ENV=testing . ../../install.sh
+
+#nvm_do_install is available
+type nvm_do_install > /dev/null 2>&1 || die 'nvm_do_install is not available'
+
--- a/test/install_script/nvm_reset
+++ b/test/install_script/nvm_reset
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+cleanup () {
+  unset -f safe_type die cleanup
+}
+die () { echo $@ ; cleanup ; exit 1; }
+
+NVM_ENV=testing . ../../install.sh
+
+safe_type() {
+  type "$1" > /dev/null 2>&1
+}
+
+# Check nvm_reset exists
+safe_type nvm_reset || die 'nvm_reset is not available'
+
+# Apply nvm_reset
+nvm_reset
+
+# The names should be unset
+! safe_type nvm_do_install || die 'nvm_do_install is still available'
+! safe_type nvm_has || die 'nvm_has is still available'
+! safe_type nvm_download || die 'nvm_download is still available'
+! safe_type install_nvm_as_script || die 'install_nvm_as_script is still available'
+! safe_type install_nvm_from_git || die 'install_nvm_from_git is still available'
+! safe_type nvm_reset || die 'nvm_reset is still available'
+! safe_type nvm_detect_profile || die 'nvm_detect_profile is still available'
+
+cleanup
+
--- a/test/install_script/nvm_source
+++ b/test/install_script/nvm_source
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+cleanup () {
+  unset -f die cleanup
+  unset NVM_SOURCE out
+}
+die () { echo $@ ; cleanup ; exit 1; }
+
+NVM_ENV=testing . ../../install.sh
+
+# nvm_source with no parameter returns the git endpoint
+echo $(nvm_source) | grep "nvm.git$" > /dev/null || die "nvm_source without arguments should return the location of the git repo" 
+
+# nvm_source with git parameter returns the location of the nvm repo
+echo $(nvm_source "git") | grep "nvm.git$" > /dev/null || die "nvm_source without arguments should return the location of the git repo" 
+
+# nvm_source with script parameter returns the location of nvm.sh
+echo $(nvm_source "script") | grep "nvm.sh$" > /dev/null || die "nvm_source \"script\" should return the location of nvm.sh"
+
+# nvm_source with script-nvm-exec parameter returns the location of nvm-exec
+echo $(nvm_source "script-nvm-exec") | grep "nvm-exec$" > /dev/null || die "nvm_source \"script-nvm-exec\" should return the location of nvm.sh"
+
+# nvm_source with any other parameter errors out and exits
+nvm_source "anything" 2> /dev/null && die "nvm_source with invalid parameter should exit"
+out=$(nvm_source "anything" 2>&1 >/dev/null) || : #Saving the process here
+[ -z "$out" ] && die "nvm_source with invalid parameter should error out"
+
+#nvm_source should always return NVM_SOURCE no matter the parameters
+NVM_SOURCE="my_location"
+out=$(nvm_source)
+[ "_$out" = "_my_location" ] || die "nvm_source without arguments should have returned \$NVM_SOURCE. Got \"$out\""
+out=$(nvm_source "git")
+[ "_$out" = "_my_location" ] || die "nvm_source git should have returned \$NVM_SOURCE. Got \"$out\""
+out=$(nvm_source "script")
+[ "_$out" = "_my_location" ] || die "nvm_source script should have returned \$NVM_SOURCE. Got \"$out\""
+out=$(nvm_source "anything")
+[ "_$out" = "_my_location" ] || die "nvm_source script should have returned \$NVM_SOURCE. Got \"$out\""
+
+cleanup
+
--- a/test/installation/install
+++ b/test/installation/install
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+[ "$(nvm install invalid.invalid 2>&1)" = "Version 'invalid.invalid' not found - try \`nvm ls-remote\` to browse available versions." ] || die "nvm installing an invalid version did not print a nice error message"
+
+# Remove the stuff we're clobbering.
+[ -e ../../v0.9.7 ] && rm -R ../../v0.9.7
+[ -e ../../v0.9.12 ] && rm -R ../../v0.9.12
+
+# Install from binary
+nvm install 0.9.7
+nvm install 0.9.12
+
+nvm use 0.9.7
+
+node --version | grep v0.9.7 || die "precondition failed: node doesn't start at 0.9.7"
+
+nvm install 0.9.12
+
+node --version | grep v0.9.12 || die "nvm install on already installed version doesn't use it"
+
--- a/test/installation/install
+++ b/test/installation/install
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+NVM_TEST_VERSION=v0.10.7
+
+# Remove the stuff we're clobbering.
+[ -e ../../$NVM_TEST_VERSION ] && rm -R ../../$NVM_TEST_VERSION
+
+# Install from binary
+nvm install $NVM_TEST_VERSION || die "install $NVM_TEST_VERSION failed"
+
+# Check
+[ -d ../../$NVM_TEST_VERSION ]
+nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION || die "'nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION' failed"
+
--- a/test/installation/install
+++ b/test/installation/install
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+NVM_TEST_VERSION=v0.10.7
+
+# Remove the stuff we're clobbering.
+[ -e ../../$NVM_TEST_VERSION ] && rm -R ../../$NVM_TEST_VERSION
+
+# Install from source
+nvm install -s $NVM_TEST_VERSION || die "'nvm install -s $NVM_TEST_VERSION' failed"
+
+# Check
+[ -d ../../$NVM_TEST_VERSION ]
+nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION || "'nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION' failed"
+
--- a/test/installation/install
+++ b/test/installation/install
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+# Remove the stuff we're clobbering.
+[ -e ../../v0.9.7 ] && rm -R ../../v0.9.7
+[ -e ../../v0.9.12 ] && rm -R ../../v0.9.12
+
+# Install from binary
+nvm install 0.9.7 || die "'nvm install 0.9.7' failed"
+nvm i 0.9.12 || die "'nvm i 0.9.12' failed"
+
+# Check
+[ -d ../../v0.9.7 ] || die "v0.9.7 didn't exist"
+[ -d ../../v0.9.12 ] || die "v0.9.12 didn't exist"
+
+# Use the first one
+nvm use 0.9.7 || die "'nvm use 0.9.7' failed"
+
+# Use the latest one
+nvm use 0.9 || die "'nvm use 0.9' failed"
+node --version | grep v0.9.12 || die "'node --version' was not v0.9.12, got: $(node --version)"
+
--- a/test/installation/install
+++ b/test/installation/install
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+NVM_TEST_VERSION=v0.10.7
+
+# Remove the stuff we're clobbering.
+[ -e ../../$NVM_TEST_VERSION ] && rm -R ../../$NVM_TEST_VERSION
+
+# Install from binary
+echo "$NVM_TEST_VERSION" > .nvmrc
+
+nvm install || die "'nvm install' failed"
+
+# Check
+[ -d ../../$NVM_TEST_VERSION ] || die "./$NVM_TEST_VERSION did not exist"
+nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION \
+  || "'nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION' failed"
+
+
--- a/test/installation/install
+++ b/test/installation/install
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+NVM_TEST_VERSION=v0.10.7
+
+# Remove the stuff we're clobbering.
+[ -e ../../$NVM_TEST_VERSION ] && rm -R ../../$NVM_TEST_VERSION
+
+# Install from binary
+echo "$NVM_TEST_VERSION" > .nvmrc
+
+nvm install -s || "'nvm install -s' failed"
+
+# Check
+[ -d ../../$NVM_TEST_VERSION ] || die "$NVM_TEST_VERSION did not exist"
+nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION \
+  || die "'nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION' failed"
+
+
--- a/test/installation/install
+++ b/test/installation/install
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+# Remove the stuff we're clobbering.
+[ -e ../../v0.9.7 ] && rm -R ../../v0.9.7
+[ -e ../../v0.9.12 ] && rm -R ../../v0.9.12
+
+# Install from binary
+nvm install 0.9.7
+
+# Check
+[ -d ../../v0.9.7 ] || die "nvm install 0.9.7 didn't install"
+
+nvm use 0.9.7
+
+node --version | grep v0.9.7 > /dev/null || die "nvm use 0.9.7 failed"
+
+npm install -g is-nan@1.0.1 || die "npm install -g is-nan failed"
+npm list --global | grep is-nan > /dev/null || die "is-nan isn't installed"
+
+nvm ls 0.9 | grep v0.9.7 > /dev/null || die "nvm ls 0.9 didn't show v0.9.7"
+
+nvm install 0.9.12 --reinstall-packages-from=0.9 || die "nvm install 0.9.12 --reinstall-packages-from=0.9 failed"
+
+[ -d ../../v0.9.12 ] || die "nvm install 0.9.12 didn't install"
+
+nvm use 0.9
+node --version | grep v0.9.12 > /dev/null || die "nvm ls 0.9 didn't use v0.9.12"
+
+npm list --global | grep is-nan > /dev/null || die "is-nan isn't installed"
+
--- a/test/installation/nvm_get_latest/nvm_get_latest
+++ b/test/installation/nvm_get_latest/nvm_get_latest
@@ -0,0 +1,117 @@
+#!/bin/sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+
+cleanup() {
+  unset -f curl wget nvm_has
+}
+
+. ../../../nvm.sh
+
+EXPECTED_VERSION="v12.3.456"
+URL="https://github.com/creationix/nvm/releases/tag/$EXPECTED_VERSION"
+EXPECTED_CURL_ARGS="-w %{url_effective}\n -L -s -S http://latest.nvm.sh -o /dev/null"
+EXPECTED_WGET_ARGS="http://latest.nvm.sh --server-response -O /dev/null"
+
+curl() {
+  if [ "_$*" != "_$EXPECTED_CURL_ARGS" ]; then
+    echo 2>& "expected args ($EXPECTED_CURL_ARGS), got ($*)"
+    return 1
+  else
+    echo $URL
+  fi
+}
+wget() {
+  if [ "_$*" != "_$EXPECTED_WGET_ARGS" ]; then
+    echo 2>& "expected args ($EXPECTED_WGET_ARGS), got ($*)"
+    return 1
+  else
+    local WGET_CONTENTS
+    WGET_CONTENTS="
+--2014-12-21 18:11:14--  http://latest.nvm.sh/
+Resolving latest.nvm.sh... 50.31.209.229
+Connecting to latest.nvm.sh|50.31.209.229|:80... connected.
+HTTP request sent, awaiting response...
+  HTTP/1.1 301 Moved Permanently
+  Location: https://github.com/creationix/nvm/releases/latest
+  Content-Type: text/html; charset=utf-8
+  Content-Length: 84
+  Date: Mon, 22 Dec 2014 02:11:15 GMT
+Location: https://github.com/creationix/nvm/releases/latest [following]
+--2014-12-21 18:11:15--  https://github.com/creationix/nvm/releases/latest
+Resolving github.com... 192.30.252.130
+Connecting to github.com|192.30.252.130|:443... connected.
+HTTP request sent, awaiting response...
+  HTTP/1.1 302 Found
+  Server: GitHub.com
+  Date: Mon, 22 Dec 2014 02:11:15 GMT
+  Content-Type: text/html; charset=utf-8
+  Transfer-Encoding: chunked
+  Status: 302 Found
+  X-XSS-Protection: 1; mode=block
+  X-Frame-Options: deny
+  Content-Security-Policy: default-src *; script-src assets-cdn.github.com collector-cdn.github.com; object-src assets-cdn.github.com; style-src 'self' 'unsafe-inline' 'unsafe-eval' assets-cdn.github.com; img-src 'self' data: assets-cdn.github.com identicons.github.com www.google-analytics.com collector.githubapp.com *.githubusercontent.com *.gravatar.com *.wp.com; media-src 'none'; frame-src 'self' render.githubusercontent.com gist.github.com www.youtube.com player.vimeo.com checkout.paypal.com; font-src assets-cdn.github.com; connect-src 'self' ghconduit.com:25035 live.github.com uploads.github.com www.google-analytics.com s3.amazonaws.com
+  Cache-Control: no-cache
+  Vary: X-PJAX
+  Location: $URL
+  X-UA-Compatible: IE=Edge,chrome=1
+  Set-Cookie: logged_in=no; domain=.github.com; path=/; expires=Fri, 22-Dec-2034 02:11:15 GMT; secure; HttpOnly
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+Location: $URL [following]
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+Reusing existing connection to github.com:443.
+HTTP request sent, awaiting response...
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+  Server: GitHub.com
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+
+"
+    "$WGET_CONTENTS" | while read line
+    do
+      2>& echo "$line"
+    done
+  fi
+}
+
+OUTPUT="$(nvm_get_latest)"
+EXIT_CODE="$(nvm_get_latest >/dev/null 2>&1 ; echo $?)"
+[ "_$OUTPUT" = "_$EXPECTED_VERSION" ] \
+  || die "success path did not return version '$EXPECTED_VERSION', got '$OUTPUT'"
+[ "_$EXIT_CODE" = "_0" ] \
+  || die "success path did not exit with code 0, got $EXIT_CODE"
+
+
+cleanup
+
--- a/test/installation/nvm_get_latest/nvm_get_latest
+++ b/test/installation/nvm_get_latest/nvm_get_latest
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+die () { echo $@ ; cleanup ; exit 1; }
+
+cleanup() {
+  unset -f curl wget
+}
+
+. ../../../nvm.sh
+
+curl() {
+  return 1
+}
+wget() {
+  return 1
+}
+
+OUTPUT="$(nvm_get_latest 2>&1)"
+EXIT_CODE="$(nvm_get_latest >/dev/null 2>&1 ; echo $?)"
+[ "_$OUTPUT" = "_http://latest.nvm.sh did not redirect to the latest release on Github" ] \
+  || die "failed redirect did not report correct error message, got '$OUTPUT'"
+[ "_$EXIT_CODE" = "_2" ] \
+  || die "failed redirect did not exit with code 2, got $EXIT_CODE"
+
+cleanup
+
--- a/test/installation/setup_dir
+++ b/test/installation/setup_dir
--- a/test/installation/teardown_dir
+++ b/test/installation/teardown_dir
@@ -1,6 +1,7 @@
 #!/bin/sh

-. ../../../nvm.sh
+. ../../nvm.sh
+nvm deactivate
 nvm uninstall v0.10.7

 if [ -f ".nvmrc" ]; then
--- a/test/slow/Running
+++ b/test/slow/Running
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+nvm install 0.10
+
+[ "$(nvm current)" = "$(node -v)" ] || die "Failed to find current version: got \"$(nvm current)\", expected \"$(node -v)\""
+
+nvm install 0.6.21
+[ "$(node -v)" = "v0.6.21-pre" ] || die "v0.6.21-pre not installed with v0.6.21"
+[ "$(nvm current)" = "v0.6.21" ] || die "v0.6.21-pre not reported as v0.6.21"
+
--- a/test/slow/nvm
+++ b/test/slow/nvm
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+nvm use 0.10
+NPM_VERSION_TEN="$(npm --version)"
+
+nvm use 0.11.7 && [ "$(node --version)" = "v0.11.7" ] || die "\`nvm use\` failed!"
+
+[ "$(nvm exec 0.10 npm --version | tail -1)" = "$NPM_VERSION_TEN" ] || die "`nvm exec` failed to run with the correct version"
+
--- a/test/slow/nvm
+++ b/test/slow/nvm
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+nvm use 0.10.7
+NPM_VERSION_TEN="$(npm --version)"
+
+nvm use 0.11.7 && [ "$(node --version)" = "v0.11.7" ] || die "\`nvm use\` failed!"
+
+echo "0.10.7" > .nvmrc
+
+[ "$(nvm exec npm --version | tail -1)" = "$NPM_VERSION_TEN" ] || die "\`nvm exec\` failed to run with the .nvmrc version"
+
+[ "$(nvm exec npm --version | head -1)" = "Found '$PWD/.nvmrc' with version <0.10.7>" ] || die "\`nvm exec\` failed to print out the \"found in .nvmrc\" message"
+
--- a/exec/setup_dir
+++ b/exec/setup_dir
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+. ../../../nvm.sh
+nvm install 0.10.7
+nvm install 0.11.7
+
+if [ -f ".nvmrc" ]; then
+  mv .nvmrc .nvmrc.bak
+fi
+
--- a/exec/teardown_dir
+++ b/exec/teardown_dir
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+. ../../../nvm.sh
+nvm deactivate
+nvm uninstall v0.10.7
+nvm uninstall v0.11.7
+
+rm .nvmrc
+
+if [ -f ".nvmrc.bak" ]; then
+  mv .nvmrc.bak .nvmrc
+fi
+
--- a/install/install
+++ b/install/install
@@ -1,17 +0,0 @@
-#!/bin/sh
-
-set -e
-. ../../../nvm.sh
-
-NVM_TEST_VERSION=v0.10.7
-
-# Remove the stuff we're clobbering.
-[ -e ../../../$NVM_TEST_VERSION ] && rm -R ../../../$NVM_TEST_VERSION
-
-# Install from binary
-nvm install $NVM_TEST_VERSION
-
-# Check
-[ -d ../../../$NVM_TEST_VERSION ]
-nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION
-
--- a/install/install
+++ b/install/install
@@ -1,17 +0,0 @@
-#!/bin/sh
-
-set -e
-. ../../../nvm.sh
-
-NVM_TEST_VERSION=v0.10.7
-
-# Remove the stuff we're clobbering.
-[ -e ../../../$NVM_TEST_VERSION ] && rm -R ../../../$NVM_TEST_VERSION
-
-# Install from source
-nvm install -s $NVM_TEST_VERSION
-
-# Check
-[ -d ../../../$NVM_TEST_VERSION ]
-nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION
-
--- a/install/install
+++ b/install/install
@@ -1,24 +0,0 @@
-#!/bin/sh
-
-set -e
-. ../../../nvm.sh
-
-# Remove the stuff we're clobbering.
-[ -e ../../../v0.9.7 ] && rm -R ../../../v0.9.7
-[ -e ../../../v0.9.12 ] && rm -R ../../../v0.9.12
-
-# Install from binary
-nvm install 0.9.7
-nvm install 0.9.12
-
-# Check
-[ -d ../../../v0.9.7 ]
-[ -d ../../../v0.9.12 ]
-
-# Use the first one
-nvm use 0.9.7
-
-# Use the latest one
-nvm use 0.9
-node --version | grep v0.9.12
-
--- a/install/install
+++ b/install/install
@@ -1,20 +0,0 @@
-#!/bin/sh
-
-set -e
-. ../../../nvm.sh
-
-NVM_TEST_VERSION=v0.10.7
-
-# Remove the stuff we're clobbering.
-[ -e ../../../$NVM_TEST_VERSION ] && rm -R ../../../$NVM_TEST_VERSION
-
-# Install from binary
-cat "$NVM_TEST_VERSION" > .nvmrc
-
-nvm install
-
-# Check
-[ -d ../../../$NVM_TEST_VERSION ]
-nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION
-
-
--- a/install/install
+++ b/install/install
@@ -1,20 +0,0 @@
-#!/bin/sh
-
-set -e
-. ../../../nvm.sh
-
-NVM_TEST_VERSION=v0.10.7
-
-# Remove the stuff we're clobbering.
-[ -e ../../../$NVM_TEST_VERSION ] && rm -R ../../../$NVM_TEST_VERSION
-
-# Install from binary
-cat "$NVM_TEST_VERSION" > .nvmrc
-
-nvm install -s
-
-# Check
-[ -d ../../../$NVM_TEST_VERSION ]
-nvm run $NVM_TEST_VERSION --version | grep $NVM_TEST_VERSION
-
-
--- a/reinstall-packages/Running
+++ b/reinstall-packages/Running
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+. ../../../nvm.sh
+
+nvm use 0.10.28 > /dev/null
+
+EXPECTED_MSG="Can not reinstall packages from the current version of node."
+ACTUAL_MSG="$(nvm reinstall-packages 0.10.28 2>&1 > /dev/null)"
+[ "~$ACTUAL_MSG" = "~$EXPECTED_MSG" ] || die "'nvm use 0.10.28 && nvm reinstall-packages 0.10.28' did not fail with the right message: '$ACTUAL_MESSAGE'"
+
+EXPECTED_ERROR_CODE="2"
+ACTUAL_ERROR_CODE="$(nvm reinstall-packages 0.10.28  > /dev/null 2>&1 ; echo $?)"
+[ "~$ACTUAL_ERROR_CODE" = "~$EXPECTED_ERROR_CODE" ] || die "'nvm use 0.10.28 && nvm reinstall-packages 0.10.28' did not fail with the right error code: expected '$EXPECTED_ERROR_CODE', got '$ACTUAL_ERROR_CODE'"
+
--- a/reinstall-packages/setup_dir
+++ b/reinstall-packages/setup_dir
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+. ../../../nvm.sh
+nvm install 0.10.28
+nvm install 0.10.29
+
+if [ -f ".nvmrc" ]; then
+  mv .nvmrc .nvmrc.bak
+fi
+
--- a/reinstall-packages/should
+++ b/reinstall-packages/should
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+die () { echo "$@" ; exit 1; }
+
+. ../../../nvm.sh
+
+nvm use 0.10.28
+
+EXPECTED_PACKAGES="autoprefixer bower david eslint grunt-cli grunth-cli http-server jshint marked node-gyp recursive-blame uglify-js yo"
+
+echo "$EXPECTED_PACKAGES" | xargs npm install -g --quiet
+
+nvm use 0.10.29
+ORIGINAL_PACKAGES=$(npm list -g --depth=0 | tail -n +2 | \grep -o -e ' [^@]*' | cut -c 2- | \grep -v npm | sort | uniq | xargs)
+
+nvm reinstall-packages 0.10.28
+FINAL_PACKAGES=$(npm list -g --depth=0 | tail -n +2 | \grep -o -e ' [^@]*' | cut -c 2- | \grep -v npm | sort | uniq | xargs)
+
+[ "$FINAL_PACKAGES" = "$EXPECTED_PACKAGES" ] || die "final packages ($FINAL_PACKAGES) did not match expected packages ($EXPECTED_PACKAGES)"
+[ "$ORIGINAL_PACKAGES" != "$FINAL_PACKAGES" ] || die "original packages matched final packages ($ORIGINAL_PACKAGES)"
+
--- a/reinstall-packages/teardown_dir
+++ b/reinstall-packages/teardown_dir
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+. ../../../nvm.sh
+nvm uninstall v0.10.28
+nvm uninstall v0.10.29
+
+rm -f .nvmrc
+
+if [ -f ".nvmrc.bak" ]; then
+  mv .nvmrc.bak .nvmrc
+fi
+
--- a/test/slow/nvm
+++ b/test/slow/nvm
@@ -6,7 +6,8 @@ die () { echo $@ ; exit 1; }
 . ../../../nvm.sh

 echo "0.10.7" > .nvmrc
-[ "$(nvm run --version | tail -1)" = "v0.10.7" ] || die "`nvm run` failed to run with the .nvmrc version"

-[ "$(nvm run --version | head -1)" = "Found .nvmrc files with version <0.10.7>" ] || die "`nvm run` failed to print out the \"found in .nvmrc\" message"
+[ "$(nvm run --version | tail -1)" = "v0.10.7" ] || die "\`nvm run\` failed to run with the .nvmrc version"
+
+[ "$(nvm run --version | head -1)" = "Found '$PWD/.nvmrc' with version <0.10.7>" ] || die "\`nvm run\` failed to print out the \"found in .nvmrc\" message"

--- a/run/teardown_dir
+++ b/run/teardown_dir
@@ -1,6 +1,7 @@
 #!/bin/sh

 . ../../../nvm.sh
+nvm deactivate
 nvm uninstall v0.10.7

 rm .nvmrc
--- a/test/sourcing/Sourcing
+++ b/test/sourcing/Sourcing
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+
+echo '0.10.1' > ../../alias/default || die 'creation of default alias failed'
+
+. ../../nvm.sh || die 'sourcing returned nonzero exit code'
+
+NVM_LS_CURRENT="$(nvm ls current | \grep -o v0.10.1)"
+[ "_$NVM_LS_CURRENT" = '_v0.10.1' ] || die "'nvm ls current' did not return '-> v0.10.1', got '$NVM_LS_CURRENT'"
+
+# NVM_LS_CURRENT_COLORED="$(nvm ls current | sed -n l)"
+
+NVM_ALIAS_DEFAULT="$(nvm alias default)"
+[ "_$NVM_ALIAS_DEFAULT" = "_default -> 0.10.1 (-> v0.10.1)" ] \
+  || die "'nvm alias default did not return 'default -> 0.10.1 (-> v0.10.1)', got '$NVM_ALIAS_DEFAULT'"
+
--- a/test/sourcing/Sourcing
+++ b/test/sourcing/Sourcing
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+supports_source_options () {
+  [ "_$(echo 'echo $1' | . /dev/stdin yes)" = "_yes" ]
+}
+
+if ! supports_source_options; then
+  echo 'this shell does not support passing options on sourcing'
+  exit 0;
+fi
+
+echo '0.10.2' > ../../.nvmrc || die 'creation of .nvmrc failed'
+
+. ../../nvm.sh --install
+EXIT_CODE="$(echo $?)"
+
+echo 'sourcing complete.'
+
+nvm_version 0.10.2 >/dev/null 2>&1 || die "v0.10.2 not installed: $(nvm ls)"
+
+[ "_$(nvm_rc_version | \grep -o -e 'with version .*$')" = "_with version <0.10.2>" ] || die "nvm_rc_version $(nvm_rc_version)"
+
+[ "_$EXIT_CODE" = "_0" ] || die "sourcing returned nonzero exit code: $EXIT_CODE"
+
+NVM_LS_CURRENT="$(nvm ls current | \grep -o v0.10.2)"
+[ "_$NVM_LS_CURRENT" = '_v0.10.2' ] || die "'nvm ls current' did not return '-> v0.10.2', got '$NVM_LS_CURRENT' `nvm ls`"
+
--- a/test/sourcing/Sourcing
+++ b/test/sourcing/Sourcing
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+die () { echo $@ ; exit 1; }
+supports_source_options () {
+  [ "_$(echo 'echo $1' | . /dev/stdin yes)" = "_yes" ]
+}
+
+if ! supports_source_options; then
+  echo 'this shell does not support passing options on sourcing'
+  exit 0;
+fi
+
+echo '0.10.2' > ../../alias/default || die 'creation of default alias failed'
+
+echo 'sourcing nvm with --install...'
+
+. ../../nvm.sh --install
+EXIT_CODE="$(echo $?)"
+
+echo 'sourcing complete.'
+
+nvm_version 0.10.2 >/dev/null 2>&1 || die "v0.10.2 not installed: $(nvm ls)"
+
+[ "_$EXIT_CODE" = "_0" ] || die "sourcing returned nonzero exit code: $EXIT_CODE"
+
+NVM_LS_CURRENT="$(nvm ls current | \grep -o v0.10.2)"
+[ "_$NVM_LS_CURRENT" = '_v0.10.2' ] || die "'nvm ls current' did not return '-> v0.10.2', got '$NVM_LS_CURRENT'"
+
+NVM_ALIAS_DEFAULT="$(nvm alias default)"
+[ "_$NVM_ALIAS_DEFAULT" = "_default -> 0.10.2 (-> v0.10.2)" ] \
+  || die "'nvm alias default did not return 'default -> 0.10.2 (-> v0.10.2)', got '$NVM_ALIAS_DEFAULT'"
+
--- a/Show More
+++ b/Show More