public void TestDiff() { string path = GetTemporaryPath(); string file = Path.Combine(path, "foo"); string diffText = string.Empty; CommandClient.Initialize(path, MercurialPath); using (var client = new CommandClient(path, null, null, MercurialPath)) { File.WriteAllText(file, "1\n"); client.Add(file); client.Commit("1", null, false, false, null, null, null, null, "user"); File.WriteAllText(file, "2\n"); diffText = client.Diff(null, file); } string[] lines = diffText.Split(new[] { "\n" }, StringSplitOptions.RemoveEmptyEntries); Assert.AreEqual(6, lines.Length, "Unexpected diff length"); Assert.AreEqual("@@ -1,1 +1,1 @@", lines [3]); Assert.AreEqual("-1", lines [4]); Assert.AreEqual("+2", lines [5]); }