public void TestUnifiedDiffParsing_AddedRemoved() { string inputA = "This is a test file!\n" + "Added another line to test file\n" + "Adding a third line to test file"; string inputB = "This is a test file!\n" + "Adding a third line to test file\n" + "Adding a fourth line to test file"; List <Diff.Diff> diff = DiffFactory.GenerateDiffCache(inputA, inputB); DiffTextModel textModel = DiffFactory.GenerateUnifiedDiff(diff); Assert.IsTrue(textModel.LineCount == 5); DiffTextLine removedLine = textModel.GetLine(1) as DiffTextLine; Assert.IsTrue(removedLine.ToString() == "Added another line to test file"); Assert.IsTrue(removedLine.BeforeLineNo == 2); Assert.IsTrue(removedLine.ChangeType == DiffLineType.Remove); DiffTextLine addedLine = textModel.GetLine(3) as DiffTextLine; Assert.IsTrue(addedLine.ToString() == "Adding a third line to test file"); Assert.IsTrue(addedLine.BeforeLineNo == -1); Assert.IsTrue(addedLine.LineNo == 2); Assert.IsTrue(addedLine.ChangeType == DiffLineType.Insert); }