1 files changed, 21 insertions, 0 deletions
diff --git a/spec/unit/puppet/parser/functions/keys_spec.rb b/spec/unit/puppet/parser/functions/keys_spec.rb
new file mode 100644
index 0000000..fdd7a70
--- /dev/null
+++ b/spec/unit/puppet/parser/functions/keys_spec.rb
@@ -0,0 +1,21 @@
+#! /usr/bin/env ruby -S rspec
+require 'spec_helper'
+
+describe "the keys function" do
+  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+  it "should exist" do
+    Puppet::Parser::Functions.function("keys").should == "function_keys"
+  end
+
+  it "should raise a ParseError if there is less than 1 arguments" do
+    lambda { scope.function_keys([]) }.should( raise_error(Puppet::ParseError))
+  end
+
+  it "should return an array of keys when given a hash" do
+    result = scope.function_keys([{'a'=>1, 'b'=>2}])
+    # =~ performs 'array with same elements' (set) matching
+    # For more info see RSpec::Matchers::MatchArray
+    result.should =~ ['a','b']
+  end
+end