1 files changed, 112 insertions, 0 deletions
diff --git a/test/minitest/test_minitest_mock.rb b/test/minitest/test_minitest_mock.rb
new file mode 100644
index 0000000000..bb4279c7d1
--- /dev/null
+++ b/test/minitest/test_minitest_mock.rb
@@ -0,0 +1,112 @@
+############################################################
+# This file is imported from a different project.
+# DO NOT make modifications in this repo.
+# File a patch instead and assign it to Ryan Davis
+############################################################
+
+require 'minitest/mock'
+require 'minitest/unit'
+
+MiniTest::Unit.autorun
+
+class TestMiniTestMock < MiniTest::Unit::TestCase
+  def setup
+    @mock = MiniTest::Mock.new.expect(:foo, nil)
+    @mock.expect(:meaning_of_life, 42)
+  end
+
+  def test_create_stub_method
+    assert_nil @mock.foo
+  end
+
+  def test_allow_return_value_specification
+    assert_equal 42, @mock.meaning_of_life
+  end
+
+  def test_blow_up_if_not_called
+    @mock.foo
+
+    util_verify_bad
+  end
+
+  def test_not_blow_up_if_everything_called
+    @mock.foo
+    @mock.meaning_of_life
+
+    assert @mock.verify
+  end
+
+  def test_allow_expectations_to_be_added_after_creation
+    @mock.expect(:bar, true)
+    assert @mock.bar
+  end
+
+  def test_not_verify_if_new_expected_method_is_not_called
+    @mock.foo
+    @mock.meaning_of_life
+    @mock.expect(:bar, true)
+
+    util_verify_bad
+  end
+
+  def test_not_verify_if_unexpected_method_is_called
+    assert_raises NoMethodError do
+      @mock.unexpected
+    end
+  end
+
+  def test_blow_up_on_wrong_number_of_arguments
+    @mock.foo
+    @mock.meaning_of_life
+    @mock.expect(:sum, 3, [1, 2])
+
+    assert_raises ArgumentError do
+      @mock.sum
+    end
+  end
+
+  def test_blow_up_on_wrong_arguments
+    @mock.foo
+    @mock.meaning_of_life
+    @mock.expect(:sum, 3, [1, 2])
+
+    @mock.sum(2, 4)
+
+    util_verify_bad
+  end
+
+  def test_respond_appropriately
+    assert @mock.respond_to?(:foo)
+    assert !@mock.respond_to?(:bar)
+  end
+
+  def test_no_method_error_on_unexpected_methods
+    assert_raises NoMethodError do
+      @mock.bar
+    end
+  end
+
+  def test_assign_per_mock_return_values
+    a = MiniTest::Mock.new
+    b = MiniTest::Mock.new
+    
+    a.expect(:foo, :a)
+    b.expect(:foo, :b)
+    
+    assert_equal :a, a.foo
+    assert_equal :b, b.foo
+  end
+
+  def test_do_not_create_stub_method_on_new_mocks
+    a = MiniTest::Mock.new
+    a.expect(:foo, :a)
+
+    assert !MiniTest::Mock.new.respond_to?(:foo)
+  end
+
+  def util_verify_bad
+    assert_raises MockExpectationError do
+      @mock.verify
+    end
+  end
+end