public void Should_Be_Add_Texts_Concat_Sequentially_Success() { //Arrange var line = new LineBuilder(); var firstText = FakerPrimitiveTypes.GetSampleText(0, 10000); var secondText = FakerPrimitiveTypes.GetSampleText(0, 10000); line.AddTextsConcat("before-", "-after", firstText, secondText); //Act var validateTest = line.GetCurrentPosition() == 2 && line.GetPosition($"before-{firstText}-after") == 1 && line.GetPosition($"before-{secondText}-after") == 2; //Assert validateTest.Should().BeTrue(); }