Copy 160kb string test from C# to other languages

Author: Neil Fraser

dart/tests/DiffMatchPatchTest.dart

@@ -462,6 +462,18 @@ void testDiffDelta() {
 
  // Convert delta string into a diff.
  Expect.listEquals(diffs, dmp.diff_fromDelta('', delta), 'diff_fromDelta: Unchanged characters.');
+
+ // 160 kb string.
+ var a = 'abcdefghij';
+ for (var i = 0; i < 14; i++) {
+ a += a;
+ }
+ diffs = [new Diff(Operation.insert, a)];
+ delta = dmp.diff_toDelta(diffs);
+ Expect.equals('+' + a, delta, 'diff_toDelta: 160kb string.');
+
+ // Convert delta string into a diff.
+ Expect.listEquals(diffs, dmp.diff_fromDelta('', delta), 'diff_fromDelta: 160kb string.');
 }
 
 void testDiffXIndex() {

java/tests/name/fraser/neil/plaintext/diff_match_patch_test.java

@@ -434,6 +434,18 @@ public static void testDiffDelta() {
 
  // Convert delta string into a diff.
  assertEquals("diff_fromDelta: Unchanged characters.", diffs, dmp.diff_fromDelta("", delta));
+
+ // 160 kb string.
+ String a = "abcdefghij";
+ for (int i = 0; i < 14; i++) {
+ a += a;
+ }
+ diffs = diffList(new Diff(INSERT, a));
+ delta = dmp.diff_toDelta(diffs);
+ assertEquals("diff_toDelta: 160kb string.", "+" + a, delta);
+
+ // Convert delta string into a diff.
+ assertEquals("diff_fromDelta: 160kb string.", diffs, dmp.diff_fromDelta("", delta));
  }
 
  public static void testDiffXIndex() {

javascript/tests/diff_match_patch_test.js

@@ -502,6 +502,18 @@ function testDiffDelta() {
 
  // Convert delta string into a diff.
  assertEquivalent(diffs, dmp.diff_fromDelta('', delta));
+
+ // 160 kb string.
+ var a = 'abcdefghij';
+ for (var i = 0; i < 14; i++) {
+ a += a;
+ }
+ diffs = [[DIFF_INSERT, a]];
+ delta = dmp.diff_toDelta(diffs);
+ assertEquals('+' + a, delta);
+
+ // Convert delta string into a diff.
+ assertEquivalent(diffs, dmp.diff_fromDelta('', delta));
 }
 
 function testDiffXIndex() {

lua/tests/diff_match_patch_test.lua

@@ -550,6 +550,15 @@ function testDiffDelta()
 
  -- Convert delta string into a diff.
  assertEquivalent(diffs, dmp.diff_fromDelta('', delta))
+
+ -- 160 kb string.
+ local a = string.rep('abcdefghij', 16384)
+ diffs = {{DIFF_INSERT, a}};
+ delta = dmp.diff_toDelta(diffs);
+ assertEquals('+' .. a, delta);
+
+ -- Convert delta string into a diff.
+ assertEquivalent(diffs, dmp.diff_fromDelta('', delta));
 end
 
 function testDiffXIndex()

objectivec/Tests/DiffMatchPatchTest.m

@@ -765,6 +765,22 @@ - (void)test_diff_deltaTest {
  expectedResult = [dmp diff_fromDeltaWithText:@"" andDelta:delta error:NULL];
  XCTAssertEqualObjects(diffs, expectedResult, @"diff_fromDelta: Unchanged characters. Convert delta string into a diff.");
 
+ // 160 kb string.
+ NSString *a = @"abcdefghij";
+ NSMutableString *aMutable = [NSMutableString stringWithString:a];
+ for (int i = 0; i < 14; i++) {
+ [aMutable appendString:aMutable];
+ }
+ a = aMutable;
+ diffs = [NSMutableArray arrayWithObject:
+ [Diff diffWithOperation:DIFF_INSERT andText:a]];
+ delta = [dmp diff_toDelta:diffs];
+ XCTAssertEqualObjects([@"+" stringByAppendingString:a], delta, @"diff_toDelta: 160kb string.");
+ 
+ // Convert delta string into a diff.
+ expectedResult = [dmp diff_fromDeltaWithText:@"" andDelta:delta error:NULL];
+ XCTAssertEqualObjects(diffs, expectedResult, @"diff_fromDelta: 160kb string. Convert delta string into a diff.");
+
  [dmp release];
 }
 

python2/tests/diff_match_patch_test.py

@@ -452,6 +452,17 @@ def testDiffDelta(self):
  # Convert delta string into a diff.
  self.assertEquals(diffs, self.dmp.diff_fromDelta("", delta))
 
+ # 160 kb string.
+ a = "abcdefghij"
+ for i in range(14):
+ a += a
+ diffs = [(self.dmp.DIFF_INSERT, a)]
+ delta = self.dmp.diff_toDelta(diffs);
+ self.assertEquals('+' + a, delta);
+
+ # Convert delta string into a diff.
+ self.assertEquals(diffs, self.dmp.diff_fromDelta("", delta));
+
  def testDiffXIndex(self):
  # Translate a location in text1 to text2.
  self.assertEquals(5, self.dmp.diff_xIndex([(self.dmp.DIFF_DELETE, "a"), (self.dmp.DIFF_INSERT, "1234"), (self.dmp.DIFF_EQUAL, "xyz")], 2))

python3/tests/diff_match_patch_test.py

@@ -455,6 +455,17 @@ def testDiffDelta(self):
  # Convert delta string into a diff.
  self.assertEqual(diffs, self.dmp.diff_fromDelta("", delta))
 
+ # 160 kb string.
+ a = "abcdefghij"
+ for i in range(14):
+ a += a
+ diffs = [(self.dmp.DIFF_INSERT, a)]
+ delta = self.dmp.diff_toDelta(diffs);
+ self.assertEqual('+' + a, delta);
+
+ # Convert delta string into a diff.
+ self.assertEqual(diffs, self.dmp.diff_fromDelta("", delta));
+
  def testDiffXIndex(self):
  # Translate a location in text1 to text2.
  self.assertEqual(5, self.dmp.diff_xIndex([(self.dmp.DIFF_DELETE, "a"), (self.dmp.DIFF_INSERT, "1234"), (self.dmp.DIFF_EQUAL, "xyz")], 2))