add puppet stdlib

[mirror/dsa-puppet.git] / modules / stdlib / spec / unit / puppet / parser / functions / flatten_spec.rb

diff --git a/modules/stdlib/spec/unit/puppet/parser/functions/flatten_spec.rb b/modules/stdlib/spec/unit/puppet/parser/functions/flatten_spec.rb
new file mode 100755 (executable)
index 0000000..7bedeb2
--- /dev/null
+++ b/modules/stdlib/spec/unit/puppet/parser/functions/flatten_spec.rb
@@ -0,0 +1,31 @@
+#!/usr/bin/env rspec
+require 'spec_helper'
+
+describe "the flatten function" do
+  before :all do
+    Puppet::Parser::Functions.autoloader.loadall
+  end
+
+  before :each do
+    @scope = Puppet::Parser::Scope.new
+  end
+
+  it "should exist" do
+    Puppet::Parser::Functions.function("flatten").should == "function_flatten"
+  end
+
+  it "should raise a ParseError if there is less than 1 arguments" do
+    lambda { @scope.function_flatten([]) }.should( raise_error(Puppet::ParseError))
+  end
+
+  it "should flatten a complex data structure" do
+    result = @scope.function_flatten([["a","b",["c",["d","e"],"f","g"]]])
+    result.should(eq(["a","b","c","d","e","f","g"]))
+  end
+
+  it "should do nothing to a structure that is already flat" do
+    result = @scope.function_flatten([["a","b","c","d"]])
+    result.should(eq(["a","b","c","d"]))
+  end
+
+end