public void GivenTextArray_WhenRemoveApostropheExceptConjunctions_ReturnsApostropheExceptConjunctionsList( StringCleanerService service ) { // ARRANGE var sampleTextArray = new string[] { "This", "is", "sample", "that\'s", "it", "\'", "" }; // ACT var results = service.RemoveApostropheExceptConjunctions(sampleTextArray); //ASSERT results.Should().NotBeNullOrEmpty(); results.Should().Contain("that\'s"); results.Should().NotContain("\'"); }