Added modules

modules/stdlib/spec/functions/validate_cmd_spec.rb

@@ -0,0 +1,48 @@
+#! /usr/bin/env ruby -S rspec
+require 'spec_helper'
+
+TESTEXE = File.exists?('/usr/bin/test') ? '/usr/bin/test' : '/bin/test'
+TOUCHEXE = File.exists?('/usr/bin/touch') ? '/usr/bin/touch' : '/bin/touch'
+
+describe Puppet::Parser::Functions.function(:validate_cmd) do
+  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+  subject do
+    function_name = Puppet::Parser::Functions.function(:validate_cmd)
+    scope.method(function_name)
+  end
+
+  describe "with an explicit failure message" do
+    it "prints the failure message on error" do
+      expect {
+        subject.call ['', '/bin/false', 'failure message!']
+      }.to raise_error Puppet::ParseError, /failure message!/
+    end
+  end
+
+  describe "on validation failure" do
+    it "includes the command error output" do
+      expect {
+        subject.call ['', "#{TOUCHEXE} /cant/touch/this"]
+      }.to raise_error Puppet::ParseError, /(cannot touch|o such file or)/
+    end
+
+    it "includes the command return value" do
+      expect {
+        subject.call ['', '/cant/run/this']
+      }.to raise_error Puppet::ParseError, /returned 1\b/
+    end
+  end
+
+  describe "when performing actual validation" do
+    it "can positively validate file content" do
+      expect { subject.call ["non-empty", "#{TESTEXE} -s"] }.to_not raise_error
+    end
+
+    it "can negatively validate file content" do
+      expect {
+        subject.call ["", "#{TESTEXE} -s"]
+      }.to raise_error Puppet::ParseError, /failed to validate.*test -s/
+    end
+  end
+end