public void Return_NotNullEnumerator() { // Arrange TestPerson person = this.fixture.Create <TestPerson>(); Mock <IFunkyFactory> funkyFactory = TestHelper.GetMockedFunkyFactory(); Indexed sut = new Indexed(person, true, funkyFactory.Object); // Act IEnumerator <KeyValuePair <string, object> > result = sut.GetEnumerator(); // Assert Assert.NotNull(result); }