public void GivenText_WhenRemoveNonAlphaCharacters_ReturnsNonAlphaCharactersString(
            StringCleanerService service,
            string sampleText
            )
        {
            // ARRANGE
            var badInput = new List <string> {
                "-", "*"
            };

            // ACT
            var results = service.RemoveNonAlphaCharacters(sampleText);

            //ASSERT
            results.Should().NotBeNullOrEmpty();
            results.Should().NotContainAny(badInput);
        }