extract assert_snapshot_unchanged_on_pass

... to DRY up assert_snapshot_unchanged + run_as_test + assert_passed combo

Author: nitishr

test/acceptance/acceptance_test_helper.rb

@@ -38,5 +38,9 @@ def teardown_acceptance_test
     Mocha::Configuration.reset_configuration
   end
 
+  def assert_snapshot_unchanged_on_pass(object, &block)
+    assert_snapshot_unchanged(object) { assert_passed(run_as_test(&block)) }
+  end
+
   include Introspection::Assertions
 end

test/acceptance/prepend_test.rb

@@ -47,37 +47,28 @@ def my_method
     end
 
     def test_stubbing_any_instance_with_multiple_prepended_methods
-      assert_snapshot_unchanged(Klass1) do
-        test_result = run_as_test do
-          Klass1.any_instance.stubs(:my_method).returns('Bye World')
-          assert_equal 'Bye World', Klass1.new.my_method
-        end
-        assert_passed(test_result)
+      assert_snapshot_unchanged_on_pass(Klass1) do
+        Klass1.any_instance.stubs(:my_method).returns('Bye World')
+        assert_equal 'Bye World', Klass1.new.my_method
       end
       assert_equal 'Hello World Wide', Klass1.new.my_method
     end
 
     def test_stubbing_instance_with_multiple_prepended_methods
       object = Klass1.new
 
-      assert_snapshot_unchanged(object) do
-        test_result = run_as_test do
-          object.stubs(:my_method).returns('Bye World')
-          assert_equal 'Bye World', object.my_method
-          assert_equal 'Hello World Wide', Klass1.new.my_method
-        end
-        assert_passed(test_result)
+      assert_snapshot_unchanged_on_pass(object) do
+        object.stubs(:my_method).returns('Bye World')
+        assert_equal 'Bye World', object.my_method
+        assert_equal 'Hello World Wide', Klass1.new.my_method
       end
       assert_equal 'Hello World Wide', object.my_method
     end
 
     def test_stubbing_a_prepended_class_method
-      assert_snapshot_unchanged(Klass2) do
-        test_result = run_as_test do
-          Klass2.stubs(:my_method).returns('Bye World')
-          assert_equal 'Bye World', Klass2.my_method
-        end
-        assert_passed(test_result)
+      assert_snapshot_unchanged_on_pass(Klass2) do
+        Klass2.stubs(:my_method).returns('Bye World')
+        assert_equal 'Bye World', Klass2.my_method
       end
       assert_equal 'Hello World Wide', Klass2.my_method
     end

test/acceptance/stub_method_shared_tests.rb

@@ -32,13 +32,10 @@ def assert_snapshot_unchanged_on_stubbing(visibility)
     instance = stubbed_instance
     stub_owner_in_scope = stub_owner || instance
     method = alias_method? ? :my_aliased_method : stubbed_method_name
-    assert_snapshot_unchanged(instance) do
-      test_result = run_as_test do
-        stub_owner_in_scope.stubs(method).returns(:new_return_value)
-        assert_method_visibility instance, method, visibility
-        assert_equal :new_return_value, instance.send(method)
-      end
-      assert_passed(test_result)
+    assert_snapshot_unchanged_on_pass(instance) do
+      stub_owner_in_scope.stubs(method).returns(:new_return_value)
+      assert_method_visibility instance, method, visibility
+      assert_equal :new_return_value, instance.send(method)
     end
     assert_equal :original_return_value, instance.send(method)
   end