Added modules

modules/stdlib/spec/functions/is_string_spec.rb

@@ -0,0 +1,34 @@
+#! /usr/bin/env ruby -S rspec
+require 'spec_helper'
+
+describe "the is_string function" do
+  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+  it "should exist" do
+    Puppet::Parser::Functions.function("is_string").should == "function_is_string"
+  end
+
+  it "should raise a ParseError if there is less than 1 arguments" do
+    lambda { scope.function_is_string([]) }.should( raise_error(Puppet::ParseError))
+  end
+
+  it "should return true if a string" do
+    result = scope.function_is_string(["asdf"])
+    result.should(eq(true))
+  end
+
+  it "should return false if an integer" do
+    result = scope.function_is_string(["3"])
+    result.should(eq(false))
+  end
+
+  it "should return false if a float" do
+    result = scope.function_is_string(["3.23"])
+    result.should(eq(false))
+  end
+
+  it "should return false if an array" do
+    result = scope.function_is_string([["a","b","c"]])
+    result.should(eq(false))
+  end
+end