nicTest.diff_match_patchTest.patch_applyTest C# (CSharp) Method

    public void patch_applyTest() {
      diff_match_patchTest dmp = new diff_match_patchTest();
      dmp.Match_Distance = 1000;
      dmp.Match_Threshold = 0.5f;
      dmp.Patch_DeleteThreshold = 0.5f;
      List<Patch> patches;
      patches = dmp.patch_make("", "");
      Object[] results = dmp.patch_apply(patches, "Hello world.");
      bool[] boolArray = (bool[])results[1];
      string resultStr = results[0] + "\t" + boolArray.Length;
      Assert.AreEqual("Hello world.\t0", resultStr, "patch_apply: Null case.");

      patches = dmp.patch_make("The quick brown fox jumps over the lazy dog.", "That quick brown fox jumped over a lazy dog.");
      results = dmp.patch_apply(patches, "The quick brown fox jumps over the lazy dog.");
      boolArray = (bool[])results[1];
      resultStr = results[0] + "\t" + boolArray[0] + "\t" + boolArray[1];
      Assert.AreEqual("That quick brown fox jumped over a lazy dog.\tTrue\tTrue", resultStr, "patch_apply: Exact match.");

      results = dmp.patch_apply(patches, "The quick red rabbit jumps over the tired tiger.");
      boolArray = (bool[])results[1];
      resultStr = results[0] + "\t" + boolArray[0] + "\t" + boolArray[1];
      Assert.AreEqual("That quick red rabbit jumped over a tired tiger.\tTrue\tTrue", resultStr, "patch_apply: Partial match.");

      results = dmp.patch_apply(patches, "I am the very model of a modern major general.");
      boolArray = (bool[])results[1];
      resultStr = results[0] + "\t" + boolArray[0] + "\t" + boolArray[1];
      Assert.AreEqual("I am the very model of a modern major general.\tFalse\tFalse", resultStr, "patch_apply: Failed match.");

      patches = dmp.patch_make("x1234567890123456789012345678901234567890123456789012345678901234567890y", "xabcy");
      results = dmp.patch_apply(patches, "x123456789012345678901234567890-----++++++++++-----123456789012345678901234567890y");
      boolArray = (bool[])results[1];
      resultStr = results[0] + "\t" + boolArray[0] + "\t" + boolArray[1];
      Assert.AreEqual("xabcy\tTrue\tTrue", resultStr, "patch_apply: Big delete, small change.");

      patches = dmp.patch_make("x1234567890123456789012345678901234567890123456789012345678901234567890y", "xabcy");
      results = dmp.patch_apply(patches, "x12345678901234567890---------------++++++++++---------------12345678901234567890y");
      boolArray = (bool[])results[1];
      resultStr = results[0] + "\t" + boolArray[0] + "\t" + boolArray[1];
      Assert.AreEqual("xabc12345678901234567890---------------++++++++++---------------12345678901234567890y\tFalse\tTrue", resultStr, "patch_apply: Big delete, big change 1.");

      dmp.Patch_DeleteThreshold = 0.6f;
      patches = dmp.patch_make("x1234567890123456789012345678901234567890123456789012345678901234567890y", "xabcy");
      results = dmp.patch_apply(patches, "x12345678901234567890---------------++++++++++---------------12345678901234567890y");
      boolArray = (bool[])results[1];
      resultStr = results[0] + "\t" + boolArray[0] + "\t" + boolArray[1];
      Assert.AreEqual("xabcy\tTrue\tTrue", resultStr, "patch_apply: Big delete, big change 2.");
      dmp.Patch_DeleteThreshold = 0.5f;

      dmp.Match_Threshold = 0.0f;
      dmp.Match_Distance = 0;
      patches = dmp.patch_make("abcdefghijklmnopqrstuvwxyz--------------------1234567890", "abcXXXXXXXXXXdefghijklmnopqrstuvwxyz--------------------1234567YYYYYYYYYY890");
      results = dmp.patch_apply(patches, "ABCDEFGHIJKLMNOPQRSTUVWXYZ--------------------1234567890");
      boolArray = (bool[])results[1];
      resultStr = results[0] + "\t" + boolArray[0] + "\t" + boolArray[1];
      Assert.AreEqual("ABCDEFGHIJKLMNOPQRSTUVWXYZ--------------------1234567YYYYYYYYYY890\tFalse\tTrue", resultStr, "patch_apply: Compensate for failed patch.");
      dmp.Match_Threshold = 0.5f;
      dmp.Match_Distance = 1000;

      patches = dmp.patch_make("", "test");
      string patchStr = dmp.patch_toText(patches);
      dmp.patch_apply(patches, "");
      Assert.AreEqual(patchStr, dmp.patch_toText(patches), "patch_apply: No side effects.");

      patches = dmp.patch_make("The quick brown fox jumps over the lazy dog.", "Woof");
      patchStr = dmp.patch_toText(patches);
      dmp.patch_apply(patches, "The quick brown fox jumps over the lazy dog.");
      Assert.AreEqual(patchStr, dmp.patch_toText(patches), "patch_apply: No side effects with major delete.");

      patches = dmp.patch_make("", "test");
      results = dmp.patch_apply(patches, "");
      boolArray = (bool[])results[1];
      resultStr = results[0] + "\t" + boolArray[0];
      Assert.AreEqual("test\tTrue", resultStr, "patch_apply: Edge exact match.");

      patches = dmp.patch_make("XY", "XtestY");
      results = dmp.patch_apply(patches, "XY");
      boolArray = (bool[])results[1];
      resultStr = results[0] + "\t" + boolArray[0];
      Assert.AreEqual("XtestY\tTrue", resultStr, "patch_apply: Near edge exact match.");

      patches = dmp.patch_make("y", "y123");
      results = dmp.patch_apply(patches, "x");
      boolArray = (bool[])results[1];
      resultStr = results[0] + "\t" + boolArray[0];
      Assert.AreEqual("x123\tTrue", resultStr, "patch_apply: Edge partial match.");
    }