From 3f29043f456af423c4ec7599040625c87321aa77 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Sat, 15 Sep 2007 21:39:04 +0000
Subject: Added Array#rand (closes #9170) [norbert]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7486 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 activesupport/test/abstract_unit.rb           |  9 +++++++++
 activesupport/test/core_ext/array_ext_test.rb | 16 ++++++++++++++++
 2 files changed, 25 insertions(+)

(limited to 'activesupport/test')

diff --git a/activesupport/test/abstract_unit.rb b/activesupport/test/abstract_unit.rb
index 8e237beac2..fba9ff97b2 100644
--- a/activesupport/test/abstract_unit.rb
+++ b/activesupport/test/abstract_unit.rb
@@ -3,5 +3,14 @@ require 'test/unit'
 $:.unshift "#{File.dirname(__FILE__)}/../lib"
 require 'active_support'
 
+# Wrap tests that use Mocha and skip if unavailable.
+def uses_mocha(test_name)
+  require 'rubygems'
+  require 'mocha'
+  yield
+rescue LoadError
+  $stderr.puts "Skipping #{test_name} tests. `gem install mocha` and try again."
+end
+
 # Show backtraces for deprecated behavior for quicker cleanup.
 ActiveSupport::Deprecation.debug = true
diff --git a/activesupport/test/core_ext/array_ext_test.rb b/activesupport/test/core_ext/array_ext_test.rb
index 8c2edfc457..a5bae8c900 100644
--- a/activesupport/test/core_ext/array_ext_test.rb
+++ b/activesupport/test/core_ext/array_ext_test.rb
@@ -200,3 +200,19 @@ class ArrayExtractOptionsTests < Test::Unit::TestCase
     assert_equal({:a=>:b}, [1, {:a=>:b}].extract_options!)
   end
 end
+
+uses_mocha "ArrayExtRandomTests" do
+
+class ArrayExtRandomTests < Test::Unit::TestCase
+  def test_random_element_from_array
+    assert_nil [].rand
+
+    Kernel.expects(:rand).with(1).returns(0)
+    assert_equal 'x', ['x'].rand
+
+    Kernel.expects(:rand).with(3).returns(1)
+    assert_equal 2, [1, 2, 3].rand
+  end
+end
+
+end
-- 
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