public void patch_applyTest() { var dmp = new diff_match_patchTest{Match_Distance = 1000, Match_Threshold = 0.5f, Patch_DeleteThreshold = 0.5f}; List<Patch> patches = dmp.patch_make("", ""); Object[] results = dmp.patch_apply(patches, "Hello world."); var 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."); }