public void ValidatePlural_WhenPluralVerbIsCorrect_ThenReturnsTrue() { //ARRANGE var mockedArticleFactory = new Mock<IArticleFactory>(); var derDieDas = new DerDieDasData("DAS, Kommen, Kommen", mockedArticleFactory.Object); //ACT var validates = derDieDas.ValidatePlural("Kommen"); //ASSERT Assert.True(validates); }