nicTest.diff_match_patchTest.patch_addContextTest C# (CSharp) Method

    public void patch_addContextTest() {
      diff_match_patchTest dmp = new diff_match_patchTest();
      dmp.Patch_Margin = 4;
      Patch p;
      p = dmp.patch_fromText("@@ -21,4 +21,10 @@\n-jump\n+somersault\n") [0];
      dmp.patch_addContext(p, "The quick brown fox jumps over the lazy dog.");
      Assert.AreEqual("@@ -17,12 +17,18 @@\n fox \n-jump\n+somersault\n s ov\n", p.ToString(), "patch_addContext: Simple case.");

      p = dmp.patch_fromText("@@ -21,4 +21,10 @@\n-jump\n+somersault\n")[0];
      dmp.patch_addContext(p, "The quick brown fox jumps.");
      Assert.AreEqual("@@ -17,10 +17,16 @@\n fox \n-jump\n+somersault\n s.\n", p.ToString(), "patch_addContext: Not enough trailing context.");

      p = dmp.patch_fromText("@@ -3 +3,2 @@\n-e\n+at\n")[0];
      dmp.patch_addContext(p, "The quick brown fox jumps.");
      Assert.AreEqual("@@ -1,7 +1,8 @@\n Th\n-e\n+at\n  qui\n", p.ToString(), "patch_addContext: Not enough leading context.");

      p = dmp.patch_fromText("@@ -3 +3,2 @@\n-e\n+at\n")[0];
      dmp.patch_addContext(p, "The quick brown fox jumps.  The quick brown fox crashes.");
      Assert.AreEqual("@@ -1,27 +1,28 @@\n Th\n-e\n+at\n  quick brown fox jumps. \n", p.ToString(), "patch_addContext: Ambiguity.");
    }