public void ReadTextFileCommaSeparated_WhenFileExists_ShouldReturnTheLines() { // create file var content = new List <string> { "Word 1, Word 2, Word 3" }; TestDataHelper.CreateTestFile(this.testFileName, content); this.fileHandler = new FileHandler(testFileName); var result = fileHandler.ReadTextFileCommaSeparated(); Assert.AreEqual(result.Count, 3); }