2 files changed, 34 insertions, 0 deletions
diff --git a/Library/Homebrew/test/test_build_environment.rb b/Library/Homebrew/test/test_build_environment.rb
index d8a227f51..6710662b5 100644
--- a/Library/Homebrew/test/test_build_environment.rb
+++ b/Library/Homebrew/test/test_build_environment.rb
@@ -31,6 +31,20 @@ class BuildEnvironmentTests < Test::Unit::TestCase
     dump = Marshal.dump(@env)
     assert Marshal.load(dump).userpaths?
   end
+
+  def test_env_block
+    foo = mock("foo")
+    @env << Proc.new { foo.some_message }
+    foo.expects(:some_message)
+    @env.modify_build_environment
+  end
+
+  def test_env_block_with_argument
+    foo = mock("foo")
+    @env << Proc.new { |x| x.some_message }
+    foo.expects(:some_message)
+    @env.modify_build_environment(foo)
+  end
 end
 
 class BuildEnvironmentDSLTests < Test::Unit::TestCase
diff --git a/Library/Homebrew/test/test_object.rb b/Library/Homebrew/test/test_object.rb
new file mode 100644
index 000000000..debdd6c42
--- /dev/null
+++ b/Library/Homebrew/test/test_object.rb
@@ -0,0 +1,20 @@
+require 'testing_env'
+require 'extend/object'
+
+class InstanceExecTests < Test::Unit::TestCase
+  def test_evaluates_in_context_of_receiver
+    assert_equal 1, [1].instance_exec { first }
+  end
+
+  def test_passes_arguments_to_block
+    assert_equal 2, [1].instance_exec(1) { |x| first + x }
+  end
+
+  def test_does_not_persist_temporary_singleton_method
+    obj = Object.new
+    before = obj.methods
+    obj.instance_exec { methods }
+    after = obj.methods
+    assert_equal before, after
+  end
+end