Merge pull request #1055 from percona/PT-2503_pt-eustack-resolver_does_not_have_--version_option

Pt 2503 pt eustack resolver does not have   version option

t/pt-eustack-resolver/option_sanity.t

@@ -0,0 +1,70 @@
+#!/usr/bin/env perl
+
+BEGIN {
+   die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
+      unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
+   unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
+};
+
+use strict;
+use warnings FATAL => 'all';
+use English qw(-no_match_vars);
+use Test::More;
+
+use PerconaTest;
+
+# ############################################################################
+# We only check basic option sanity here. It is hard to create tests for the
+# eu-stack output that work in all environments. So we will simply check that
+# the help and version options work as expected.
+# ############################################################################
+
+my $output = `$trunk/bin/pt-eustack-resolver --help`;
+
+like(
+   $output,
+   qr/^\s+--help\s+Show help and exit/m,
+   "--help option is documented"
+);
+
+like(
+   $output,
+   qr/^\s+--version\s+Show version and exit/m,
+   "--version option is documented"
+);
+
+like(
+   $output,
+   qr/Options and values after processing arguments:/m,
+   "Help output contains expected section"
+);
+
+# ############################################################################
+# Check error when no arguments are provided
+# ############################################################################
+my $error_output = `$trunk/bin/pt-eustack-resolver 2>&1`;
+
+like(
+   $error_output,
+   qr/A PID must be specified/m,
+   "Error message shown when no PID is provided"
+);
+
+like(
+   $error_output,
+   qr/Usage: pt-eustack-resolver PID/m,
+   "Usage line shown in error"
+);
+
+# ############################################################################
+# Check --version option
+# ############################################################################
+my $version_output = `$trunk/bin/pt-eustack-resolver --version`;
+
+like(
+   $version_output,
+   qr/pt-eustack-resolver \d+\.\d+\.\d+(?:-\d+)?/m,
+   "--version shows tool name and version"
+);
+
+done_testing;