Add Bash libs tmpdir and log_warn_die. Docu parse_options. Don't use TMPDIR in test-bash-functions; add ok() to test-bash-functions.

t/lib/bash/tmpdir.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+TESTS=9
+
+source "$LIB_DIR/log_warn_die.sh"
+source "$LIB_DIR/tmpdir.sh"
+
+TEST_NAME="TMPDIR not defined"
+is "$TMPDIR" ""
+
+TEST_NAME="set_TMPDIR makes secure tmpdir"
+set_TMPDIR
+ok "test -d $TMPDIR"
+
+tmpdir=$TMPDIR;
+
+TEST_NAME="rm_TMPDIR"
+rm_TMPDIR
+ok "test ! -d $tmpdir"
+
+TEST_NAME="rm_TMPDIR resets TMPDIR"
+is "$TMPDIR" "" 
+
+# --tmpdir
+OPT_TMPDIR="/tmp/use--tmpdir"
+
+TEST_NAME="TMPDIR not defined"
+is "$TMPDIR" ""
+
+TEST_NAME="--tmpdir does not exist yet"
+ok "test ! -d $OPT_TMPDIR"
+
+set_TMPDIR
+TEST_NAME="set_TMPDIR uses --tmpdir"
+is "$TMPDIR" "/tmp/use--tmpdir"
+
+TEST_NAME="set_TMPDIR creates --tmpdir"
+ok "test -d $TMPDIR"
+
+tmpdir=$TMPDIR;
+
+TEST_NAME="rm_TMPDIR removes --tmpdir"
+rm_TMPDIR
+ok "test ! -d $tmpdir"