1 files changed, 16 insertions, 23 deletions
diff --git a/spec/functions/upcase_spec.rb b/spec/functions/upcase_spec.rb
index 3cf8b05..3b7b02d 100755
--- a/spec/functions/upcase_spec.rb
+++ b/spec/functions/upcase_spec.rb
@@ -1,33 +1,26 @@
-#! /usr/bin/env ruby -S rspec
 require 'spec_helper'
 
-describe "the upcase function" do
-  let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
-
-  it "should exist" do
-    expect(Puppet::Parser::Functions.function("upcase")).to eq("function_upcase")
-  end
-
-  it "should raise a ParseError if there is less than 1 arguments" do
-    expect { scope.function_upcase([]) }.to( raise_error(Puppet::ParseError))
+describe 'upcase' do
+  describe 'signature validation' do
+    it { is_expected.not_to eq(nil) }
+    it { is_expected.to run.with_params().and_raise_error(Puppet::ParseError, /wrong number of arguments/i) }
+    it { is_expected.to run.with_params('', '').and_raise_error(Puppet::ParseError, /wrong number of arguments/i) }
+    it { is_expected.to run.with_params(1).and_raise_error(Puppet::ParseError, /Requires an array, hash or object that responds to upcase/) }
+    it { is_expected.to run.with_params([1]).and_raise_error(Puppet::ParseError, /Requires an array, hash or object that responds to upcase/) }
   end
 
-  it "should upcase a string" do
-    result = scope.function_upcase(["abc"])
-    expect(result).to(eq('ABC'))
+  describe 'normal string handling' do
+    it { is_expected.to run.with_params("abc").and_return("ABC") }
+    it { is_expected.to run.with_params("Abc").and_return("ABC") }
+    it { is_expected.to run.with_params("ABC").and_return("ABC") }
   end
 
-  it "should do nothing if a string is already upcase" do
-    result = scope.function_upcase(["ABC"])
-    expect(result).to(eq('ABC'))
+  describe 'handling classes derived from String' do
+    it { is_expected.to run.with_params(AlsoString.new("ABC")).and_return("ABC") }
   end
 
-  it "should accept objects which extend String" do
-    class AlsoString < String
-    end
-
-    value = AlsoString.new('abc')
-    result = scope.function_upcase([value])
-    result.should(eq('ABC'))
+  describe 'strings in arrays handling' do
+    it { is_expected.to run.with_params([]).and_return([]) }
+    it { is_expected.to run.with_params(["One", "twO"]).and_return(["ONE", "TWO"]) }
   end
 end