some deletions
[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / github.com / sergi / go-diff@v1.1.0 / diffmatchpatch / diff_test.go
diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/github.com/sergi/go-diff@v1.1.0/diffmatchpatch/diff_test.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/github.com/sergi/go-diff@v1.1.0/diffmatchpatch/diff_test.go
deleted file mode 100644 (file)
index 5c165b1..0000000
+++ /dev/null
@@ -1,1461 +0,0 @@
-// Copyright (c) 2012-2016 The go-diff authors. All rights reserved.
-// https://github.com/sergi/go-diff
-// See the included LICENSE file for license details.
-//
-// go-diff is a Go implementation of Google's Diff, Match, and Patch library
-// Original library is Copyright (c) 2006 Google Inc.
-// http://code.google.com/p/google-diff-match-patch/
-
-package diffmatchpatch
-
-import (
-       "bytes"
-       "fmt"
-       "strconv"
-       "strings"
-       "testing"
-       "time"
-       "unicode/utf8"
-
-       "github.com/stretchr/testify/assert"
-)
-
-func pretty(diffs []Diff) string {
-       var w bytes.Buffer
-
-       for i, diff := range diffs {
-               _, _ = w.WriteString(fmt.Sprintf("%v. ", i))
-
-               switch diff.Type {
-               case DiffInsert:
-                       _, _ = w.WriteString("DiffIns")
-               case DiffDelete:
-                       _, _ = w.WriteString("DiffDel")
-               case DiffEqual:
-                       _, _ = w.WriteString("DiffEql")
-               default:
-                       _, _ = w.WriteString("Unknown")
-               }
-
-               _, _ = w.WriteString(fmt.Sprintf(": %v\n", diff.Text))
-       }
-
-       return w.String()
-}
-
-func diffRebuildTexts(diffs []Diff) []string {
-       texts := []string{"", ""}
-
-       for _, d := range diffs {
-               if d.Type != DiffInsert {
-                       texts[0] += d.Text
-               }
-               if d.Type != DiffDelete {
-                       texts[1] += d.Text
-               }
-       }
-
-       return texts
-}
-
-func TestDiffCommonPrefix(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Text1 string
-               Text2 string
-
-               Expected int
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {"Null", "abc", "xyz", 0},
-               {"Non-null", "1234abcdef", "1234xyz", 4},
-               {"Whole", "1234", "1234xyz", 4},
-       } {
-               actual := dmp.DiffCommonPrefix(tc.Text1, tc.Text2)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-}
-
-func BenchmarkDiffCommonPrefix(b *testing.B) {
-       s := "ABCDEFGHIJKLMNOPQRSTUVWXYZÅÄÖ"
-
-       dmp := New()
-
-       for i := 0; i < b.N; i++ {
-               dmp.DiffCommonPrefix(s, s)
-       }
-}
-
-func TestCommonPrefixLength(t *testing.T) {
-       type TestCase struct {
-               Text1 string
-               Text2 string
-
-               Expected int
-       }
-
-       for i, tc := range []TestCase{
-               {"abc", "xyz", 0},
-               {"1234abcdef", "1234xyz", 4},
-               {"1234", "1234xyz", 4},
-       } {
-               actual := commonPrefixLength([]rune(tc.Text1), []rune(tc.Text2))
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-}
-
-func TestDiffCommonSuffix(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Text1 string
-               Text2 string
-
-               Expected int
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {"Null", "abc", "xyz", 0},
-               {"Non-null", "abcdef1234", "xyz1234", 4},
-               {"Whole", "1234", "xyz1234", 4},
-       } {
-               actual := dmp.DiffCommonSuffix(tc.Text1, tc.Text2)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-}
-
-var SinkInt int // exported sink var to avoid compiler optimizations in benchmarks
-
-func BenchmarkDiffCommonSuffix(b *testing.B) {
-       s := "ABCDEFGHIJKLMNOPQRSTUVWXYZÅÄÖ"
-
-       dmp := New()
-
-       b.ResetTimer()
-
-       for i := 0; i < b.N; i++ {
-               SinkInt = dmp.DiffCommonSuffix(s, s)
-       }
-}
-
-func BenchmarkCommonLength(b *testing.B) {
-       data := []struct {
-               name string
-               x, y []rune
-       }{
-               {name: "empty", x: nil, y: []rune{}},
-               {name: "short", x: []rune("AABCC"), y: []rune("AA-CC")},
-               {name: "long",
-                       x: []rune(strings.Repeat("A", 1000) + "B" + strings.Repeat("C", 1000)),
-                       y: []rune(strings.Repeat("A", 1000) + "-" + strings.Repeat("C", 1000)),
-               },
-       }
-       b.Run("prefix", func(b *testing.B) {
-               for _, d := range data {
-                       b.Run(d.name, func(b *testing.B) {
-                               for i := 0; i < b.N; i++ {
-                                       SinkInt = commonPrefixLength(d.x, d.y)
-                               }
-                       })
-               }
-       })
-       b.Run("suffix", func(b *testing.B) {
-               for _, d := range data {
-                       b.Run(d.name, func(b *testing.B) {
-                               for i := 0; i < b.N; i++ {
-                                       SinkInt = commonSuffixLength(d.x, d.y)
-                               }
-                       })
-               }
-       })
-}
-
-func TestCommonSuffixLength(t *testing.T) {
-       type TestCase struct {
-               Text1 string
-               Text2 string
-
-               Expected int
-       }
-
-       for i, tc := range []TestCase{
-               {"abc", "xyz", 0},
-               {"abcdef1234", "xyz1234", 4},
-               {"1234", "xyz1234", 4},
-               {"123", "a3", 1},
-       } {
-               actual := commonSuffixLength([]rune(tc.Text1), []rune(tc.Text2))
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-}
-
-func TestDiffCommonOverlap(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Text1 string
-               Text2 string
-
-               Expected int
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {"Null", "", "abcd", 0},
-               {"Whole", "abc", "abcd", 3},
-               {"Null", "123456", "abcd", 0},
-               {"Null", "123456xxx", "xxxabcd", 3},
-               // Some overly clever languages (C#) may treat ligatures as equal to their component letters, e.g. U+FB01 == 'fi'
-               {"Unicode", "fi", "\ufb01i", 0},
-       } {
-               actual := dmp.DiffCommonOverlap(tc.Text1, tc.Text2)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-}
-
-func TestDiffHalfMatch(t *testing.T) {
-       type TestCase struct {
-               Text1 string
-               Text2 string
-
-               Expected []string
-       }
-
-       dmp := New()
-       dmp.DiffTimeout = 1
-
-       for i, tc := range []TestCase{
-               // No match
-               {"1234567890", "abcdef", nil},
-               {"12345", "23", nil},
-
-               // Single Match
-               {"1234567890", "a345678z", []string{"12", "90", "a", "z", "345678"}},
-               {"a345678z", "1234567890", []string{"a", "z", "12", "90", "345678"}},
-               {"abc56789z", "1234567890", []string{"abc", "z", "1234", "0", "56789"}},
-               {"a23456xyz", "1234567890", []string{"a", "xyz", "1", "7890", "23456"}},
-
-               // Multiple Matches
-               {"121231234123451234123121", "a1234123451234z", []string{"12123", "123121", "a", "z", "1234123451234"}},
-               {"x-=-=-=-=-=-=-=-=-=-=-=-=", "xx-=-=-=-=-=-=-=", []string{"", "-=-=-=-=-=", "x", "", "x-=-=-=-=-=-=-="}},
-               {"-=-=-=-=-=-=-=-=-=-=-=-=y", "-=-=-=-=-=-=-=yy", []string{"-=-=-=-=-=", "", "", "y", "-=-=-=-=-=-=-=y"}},
-
-               // Non-optimal halfmatch, ptimal diff would be -q+x=H-i+e=lloHe+Hu=llo-Hew+y not -qHillo+x=HelloHe-w+Hulloy
-               {"qHilloHelloHew", "xHelloHeHulloy", []string{"qHillo", "w", "x", "Hulloy", "HelloHe"}},
-       } {
-               actual := dmp.DiffHalfMatch(tc.Text1, tc.Text2)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-
-       dmp.DiffTimeout = 0
-
-       for i, tc := range []TestCase{
-               // Optimal no halfmatch
-               {"qHilloHelloHew", "xHelloHeHulloy", nil},
-       } {
-               actual := dmp.DiffHalfMatch(tc.Text1, tc.Text2)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-}
-
-func BenchmarkDiffHalfMatch(b *testing.B) {
-       s1, s2 := speedtestTexts()
-
-       dmp := New()
-
-       b.ResetTimer()
-
-       for i := 0; i < b.N; i++ {
-               dmp.DiffHalfMatch(s1, s2)
-       }
-}
-
-func TestDiffBisectSplit(t *testing.T) {
-       type TestCase struct {
-               Text1 string
-               Text2 string
-       }
-
-       dmp := New()
-
-       for _, tc := range []TestCase{
-               {"STUV\x05WX\x05YZ\x05[", "WĺĻļ\x05YZ\x05ĽľĿŀZ"},
-       } {
-               diffs := dmp.diffBisectSplit([]rune(tc.Text1),
-                       []rune(tc.Text2), 7, 6, time.Now().Add(time.Hour))
-
-               for _, d := range diffs {
-                       assert.True(t, utf8.ValidString(d.Text))
-               }
-
-               // TODO define the expected outcome
-       }
-}
-
-func TestDiffLinesToChars(t *testing.T) {
-       type TestCase struct {
-               Text1 string
-               Text2 string
-
-               ExpectedChars1 string
-               ExpectedChars2 string
-               ExpectedLines  []string
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {"", "alpha\r\nbeta\r\n\r\n\r\n", "", "\u0001\u0002\u0003\u0003", []string{"", "alpha\r\n", "beta\r\n", "\r\n"}},
-               {"a", "b", "\u0001", "\u0002", []string{"", "a", "b"}},
-               // Omit final newline.
-               {"alpha\nbeta\nalpha", "", "\u0001\u0002\u0003", "", []string{"", "alpha\n", "beta\n", "alpha"}},
-       } {
-               actualChars1, actualChars2, actualLines := dmp.DiffLinesToChars(tc.Text1, tc.Text2)
-               assert.Equal(t, tc.ExpectedChars1, actualChars1, fmt.Sprintf("Test case #%d, %#v", i, tc))
-               assert.Equal(t, tc.ExpectedChars2, actualChars2, fmt.Sprintf("Test case #%d, %#v", i, tc))
-               assert.Equal(t, tc.ExpectedLines, actualLines, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-
-       // More than 256 to reveal any 8-bit limitations.
-       n := 300
-       lineList := []string{
-               "", // Account for the initial empty element of the lines array.
-       }
-       var charList []rune
-       for x := 1; x < n+1; x++ {
-               lineList = append(lineList, strconv.Itoa(x)+"\n")
-               charList = append(charList, rune(x))
-       }
-       lines := strings.Join(lineList, "")
-       chars := string(charList)
-       assert.Equal(t, n, utf8.RuneCountInString(chars))
-
-       actualChars1, actualChars2, actualLines := dmp.DiffLinesToChars(lines, "")
-       assert.Equal(t, chars, actualChars1)
-       assert.Equal(t, "", actualChars2)
-       assert.Equal(t, lineList, actualLines)
-}
-
-func TestDiffCharsToLines(t *testing.T) {
-       type TestCase struct {
-               Diffs []Diff
-               Lines []string
-
-               Expected []Diff
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {
-                       Diffs: []Diff{
-                               {DiffEqual, "\u0001\u0002\u0001"},
-                               {DiffInsert, "\u0002\u0001\u0002"},
-                       },
-                       Lines: []string{"", "alpha\n", "beta\n"},
-
-                       Expected: []Diff{
-                               {DiffEqual, "alpha\nbeta\nalpha\n"},
-                               {DiffInsert, "beta\nalpha\nbeta\n"},
-                       },
-               },
-       } {
-               actual := dmp.DiffCharsToLines(tc.Diffs, tc.Lines)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-
-       // More than 256 to reveal any 8-bit limitations.
-       n := 300
-       lineList := []string{
-               "", // Account for the initial empty element of the lines array.
-       }
-       charList := []rune{}
-       for x := 1; x <= n; x++ {
-               lineList = append(lineList, strconv.Itoa(x)+"\n")
-               charList = append(charList, rune(x))
-       }
-       assert.Equal(t, n, len(charList))
-
-       actual := dmp.DiffCharsToLines([]Diff{Diff{DiffDelete, string(charList)}}, lineList)
-       assert.Equal(t, []Diff{Diff{DiffDelete, strings.Join(lineList, "")}}, actual)
-}
-
-func TestDiffCleanupMerge(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Diffs []Diff
-
-               Expected []Diff
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {
-                       "Null case",
-                       []Diff{},
-                       []Diff{},
-               },
-               {
-                       "No Diff case",
-                       []Diff{Diff{DiffEqual, "a"}, Diff{DiffDelete, "b"}, Diff{DiffInsert, "c"}},
-                       []Diff{Diff{DiffEqual, "a"}, Diff{DiffDelete, "b"}, Diff{DiffInsert, "c"}},
-               },
-               {
-                       "Merge equalities",
-                       []Diff{Diff{DiffEqual, "a"}, Diff{DiffEqual, "b"}, Diff{DiffEqual, "c"}},
-                       []Diff{Diff{DiffEqual, "abc"}},
-               },
-               {
-                       "Merge deletions",
-                       []Diff{Diff{DiffDelete, "a"}, Diff{DiffDelete, "b"}, Diff{DiffDelete, "c"}},
-                       []Diff{Diff{DiffDelete, "abc"}},
-               },
-               {
-                       "Merge insertions",
-                       []Diff{Diff{DiffInsert, "a"}, Diff{DiffInsert, "b"}, Diff{DiffInsert, "c"}},
-                       []Diff{Diff{DiffInsert, "abc"}},
-               },
-               {
-                       "Merge interweave",
-                       []Diff{Diff{DiffDelete, "a"}, Diff{DiffInsert, "b"}, Diff{DiffDelete, "c"}, Diff{DiffInsert, "d"}, Diff{DiffEqual, "e"}, Diff{DiffEqual, "f"}},
-                       []Diff{Diff{DiffDelete, "ac"}, Diff{DiffInsert, "bd"}, Diff{DiffEqual, "ef"}},
-               },
-               {
-                       "Prefix and suffix detection",
-                       []Diff{Diff{DiffDelete, "a"}, Diff{DiffInsert, "abc"}, Diff{DiffDelete, "dc"}},
-                       []Diff{Diff{DiffEqual, "a"}, Diff{DiffDelete, "d"}, Diff{DiffInsert, "b"}, Diff{DiffEqual, "c"}},
-               },
-               {
-                       "Prefix and suffix detection with equalities",
-                       []Diff{Diff{DiffEqual, "x"}, Diff{DiffDelete, "a"}, Diff{DiffInsert, "abc"}, Diff{DiffDelete, "dc"}, Diff{DiffEqual, "y"}},
-                       []Diff{Diff{DiffEqual, "xa"}, Diff{DiffDelete, "d"}, Diff{DiffInsert, "b"}, Diff{DiffEqual, "cy"}},
-               },
-               {
-                       "Same test as above but with unicode (\u0101 will appear in diffs with at least 257 unique lines)",
-                       []Diff{Diff{DiffEqual, "x"}, Diff{DiffDelete, "\u0101"}, Diff{DiffInsert, "\u0101bc"}, Diff{DiffDelete, "dc"}, Diff{DiffEqual, "y"}},
-                       []Diff{Diff{DiffEqual, "x\u0101"}, Diff{DiffDelete, "d"}, Diff{DiffInsert, "b"}, Diff{DiffEqual, "cy"}},
-               },
-               {
-                       "Slide edit left",
-                       []Diff{Diff{DiffEqual, "a"}, Diff{DiffInsert, "ba"}, Diff{DiffEqual, "c"}},
-                       []Diff{Diff{DiffInsert, "ab"}, Diff{DiffEqual, "ac"}},
-               },
-               {
-                       "Slide edit right",
-                       []Diff{Diff{DiffEqual, "c"}, Diff{DiffInsert, "ab"}, Diff{DiffEqual, "a"}},
-                       []Diff{Diff{DiffEqual, "ca"}, Diff{DiffInsert, "ba"}},
-               },
-               {
-                       "Slide edit left recursive",
-                       []Diff{Diff{DiffEqual, "a"}, Diff{DiffDelete, "b"}, Diff{DiffEqual, "c"}, Diff{DiffDelete, "ac"}, Diff{DiffEqual, "x"}},
-                       []Diff{Diff{DiffDelete, "abc"}, Diff{DiffEqual, "acx"}},
-               },
-               {
-                       "Slide edit right recursive",
-                       []Diff{Diff{DiffEqual, "x"}, Diff{DiffDelete, "ca"}, Diff{DiffEqual, "c"}, Diff{DiffDelete, "b"}, Diff{DiffEqual, "a"}},
-                       []Diff{Diff{DiffEqual, "xca"}, Diff{DiffDelete, "cba"}},
-               },
-       } {
-               actual := dmp.DiffCleanupMerge(tc.Diffs)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-}
-
-func TestDiffCleanupSemanticLossless(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Diffs []Diff
-
-               Expected []Diff
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {
-                       "Null case",
-                       []Diff{},
-                       []Diff{},
-               },
-               {
-                       "Blank lines",
-                       []Diff{
-                               Diff{DiffEqual, "AAA\r\n\r\nBBB"},
-                               Diff{DiffInsert, "\r\nDDD\r\n\r\nBBB"},
-                               Diff{DiffEqual, "\r\nEEE"},
-                       },
-                       []Diff{
-                               Diff{DiffEqual, "AAA\r\n\r\n"},
-                               Diff{DiffInsert, "BBB\r\nDDD\r\n\r\n"},
-                               Diff{DiffEqual, "BBB\r\nEEE"},
-                       },
-               },
-               {
-                       "Line boundaries",
-                       []Diff{
-                               Diff{DiffEqual, "AAA\r\nBBB"},
-                               Diff{DiffInsert, " DDD\r\nBBB"},
-                               Diff{DiffEqual, " EEE"},
-                       },
-                       []Diff{
-                               Diff{DiffEqual, "AAA\r\n"},
-                               Diff{DiffInsert, "BBB DDD\r\n"},
-                               Diff{DiffEqual, "BBB EEE"},
-                       },
-               },
-               {
-                       "Word boundaries",
-                       []Diff{
-                               Diff{DiffEqual, "The c"},
-                               Diff{DiffInsert, "ow and the c"},
-                               Diff{DiffEqual, "at."},
-                       },
-                       []Diff{
-                               Diff{DiffEqual, "The "},
-                               Diff{DiffInsert, "cow and the "},
-                               Diff{DiffEqual, "cat."},
-                       },
-               },
-               {
-                       "Alphanumeric boundaries",
-                       []Diff{
-                               Diff{DiffEqual, "The-c"},
-                               Diff{DiffInsert, "ow-and-the-c"},
-                               Diff{DiffEqual, "at."},
-                       },
-                       []Diff{
-                               Diff{DiffEqual, "The-"},
-                               Diff{DiffInsert, "cow-and-the-"},
-                               Diff{DiffEqual, "cat."},
-                       },
-               },
-               {
-                       "Hitting the start",
-                       []Diff{
-                               Diff{DiffEqual, "a"},
-                               Diff{DiffDelete, "a"},
-                               Diff{DiffEqual, "ax"},
-                       },
-                       []Diff{
-                               Diff{DiffDelete, "a"},
-                               Diff{DiffEqual, "aax"},
-                       },
-               },
-               {
-                       "Hitting the end",
-                       []Diff{
-                               Diff{DiffEqual, "xa"},
-                               Diff{DiffDelete, "a"},
-                               Diff{DiffEqual, "a"},
-                       },
-                       []Diff{
-                               Diff{DiffEqual, "xaa"},
-                               Diff{DiffDelete, "a"},
-                       },
-               },
-               {
-                       "Sentence boundaries",
-                       []Diff{
-                               Diff{DiffEqual, "The xxx. The "},
-                               Diff{DiffInsert, "zzz. The "},
-                               Diff{DiffEqual, "yyy."},
-                       },
-                       []Diff{
-                               Diff{DiffEqual, "The xxx."},
-                               Diff{DiffInsert, " The zzz."},
-                               Diff{DiffEqual, " The yyy."},
-                       },
-               },
-               {
-                       "UTF-8 strings",
-                       []Diff{
-                               Diff{DiffEqual, "The ♕. The "},
-                               Diff{DiffInsert, "♔. The "},
-                               Diff{DiffEqual, "♖."},
-                       },
-                       []Diff{
-                               Diff{DiffEqual, "The ♕."},
-                               Diff{DiffInsert, " The ♔."},
-                               Diff{DiffEqual, " The ♖."},
-                       },
-               },
-               {
-                       "Rune boundaries",
-                       []Diff{
-                               Diff{DiffEqual, "♕♕"},
-                               Diff{DiffInsert, "♔♔"},
-                               Diff{DiffEqual, "♖♖"},
-                       },
-                       []Diff{
-                               Diff{DiffEqual, "♕♕"},
-                               Diff{DiffInsert, "♔♔"},
-                               Diff{DiffEqual, "♖♖"},
-                       },
-               },
-       } {
-               actual := dmp.DiffCleanupSemanticLossless(tc.Diffs)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-}
-
-func TestDiffCleanupSemantic(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Diffs []Diff
-
-               Expected []Diff
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {
-                       "Null case",
-                       []Diff{},
-                       []Diff{},
-               },
-               {
-                       "No elimination #1",
-                       []Diff{
-                               {DiffDelete, "ab"},
-                               {DiffInsert, "cd"},
-                               {DiffEqual, "12"},
-                               {DiffDelete, "e"},
-                       },
-                       []Diff{
-                               {DiffDelete, "ab"},
-                               {DiffInsert, "cd"},
-                               {DiffEqual, "12"},
-                               {DiffDelete, "e"},
-                       },
-               },
-               {
-                       "No elimination #2",
-                       []Diff{
-                               {DiffDelete, "abc"},
-                               {DiffInsert, "ABC"},
-                               {DiffEqual, "1234"},
-                               {DiffDelete, "wxyz"},
-                       },
-                       []Diff{
-                               {DiffDelete, "abc"},
-                               {DiffInsert, "ABC"},
-                               {DiffEqual, "1234"},
-                               {DiffDelete, "wxyz"},
-                       },
-               },
-               {
-                       "No elimination #3",
-                       []Diff{
-                               {DiffEqual, "2016-09-01T03:07:1"},
-                               {DiffInsert, "5.15"},
-                               {DiffEqual, "4"},
-                               {DiffDelete, "."},
-                               {DiffEqual, "80"},
-                               {DiffInsert, "0"},
-                               {DiffEqual, "78"},
-                               {DiffDelete, "3074"},
-                               {DiffEqual, "1Z"},
-                       },
-                       []Diff{
-                               {DiffEqual, "2016-09-01T03:07:1"},
-                               {DiffInsert, "5.15"},
-                               {DiffEqual, "4"},
-                               {DiffDelete, "."},
-                               {DiffEqual, "80"},
-                               {DiffInsert, "0"},
-                               {DiffEqual, "78"},
-                               {DiffDelete, "3074"},
-                               {DiffEqual, "1Z"},
-                       },
-               },
-               {
-                       "Simple elimination",
-                       []Diff{
-                               {DiffDelete, "a"},
-                               {DiffEqual, "b"},
-                               {DiffDelete, "c"},
-                       },
-                       []Diff{
-                               {DiffDelete, "abc"},
-                               {DiffInsert, "b"},
-                       },
-               },
-               {
-                       "Backpass elimination",
-                       []Diff{
-                               {DiffDelete, "ab"},
-                               {DiffEqual, "cd"},
-                               {DiffDelete, "e"},
-                               {DiffEqual, "f"},
-                               {DiffInsert, "g"},
-                       },
-                       []Diff{
-                               {DiffDelete, "abcdef"},
-                               {DiffInsert, "cdfg"},
-                       },
-               },
-               {
-                       "Multiple eliminations",
-                       []Diff{
-                               {DiffInsert, "1"},
-                               {DiffEqual, "A"},
-                               {DiffDelete, "B"},
-                               {DiffInsert, "2"},
-                               {DiffEqual, "_"},
-                               {DiffInsert, "1"},
-                               {DiffEqual, "A"},
-                               {DiffDelete, "B"},
-                               {DiffInsert, "2"},
-                       },
-                       []Diff{
-                               {DiffDelete, "AB_AB"},
-                               {DiffInsert, "1A2_1A2"},
-                       },
-               },
-               {
-                       "Word boundaries",
-                       []Diff{
-                               {DiffEqual, "The c"},
-                               {DiffDelete, "ow and the c"},
-                               {DiffEqual, "at."},
-                       },
-                       []Diff{
-                               {DiffEqual, "The "},
-                               {DiffDelete, "cow and the "},
-                               {DiffEqual, "cat."},
-                       },
-               },
-               {
-                       "No overlap elimination",
-                       []Diff{
-                               {DiffDelete, "abcxx"},
-                               {DiffInsert, "xxdef"},
-                       },
-                       []Diff{
-                               {DiffDelete, "abcxx"},
-                               {DiffInsert, "xxdef"},
-                       },
-               },
-               {
-                       "Overlap elimination",
-                       []Diff{
-                               {DiffDelete, "abcxxx"},
-                               {DiffInsert, "xxxdef"},
-                       },
-                       []Diff{
-                               {DiffDelete, "abc"},
-                               {DiffEqual, "xxx"},
-                               {DiffInsert, "def"},
-                       },
-               },
-               {
-                       "Reverse overlap elimination",
-                       []Diff{
-                               {DiffDelete, "xxxabc"},
-                               {DiffInsert, "defxxx"},
-                       },
-                       []Diff{
-                               {DiffInsert, "def"},
-                               {DiffEqual, "xxx"},
-                               {DiffDelete, "abc"},
-                       },
-               },
-               {
-                       "Two overlap eliminations",
-                       []Diff{
-                               {DiffDelete, "abcd1212"},
-                               {DiffInsert, "1212efghi"},
-                               {DiffEqual, "----"},
-                               {DiffDelete, "A3"},
-                               {DiffInsert, "3BC"},
-                       },
-                       []Diff{
-                               {DiffDelete, "abcd"},
-                               {DiffEqual, "1212"},
-                               {DiffInsert, "efghi"},
-                               {DiffEqual, "----"},
-                               {DiffDelete, "A"},
-                               {DiffEqual, "3"},
-                               {DiffInsert, "BC"},
-                       },
-               },
-               {
-                       "Test case for adapting DiffCleanupSemantic to be equal to the Python version #19",
-                       []Diff{
-                               {DiffEqual, "James McCarthy "},
-                               {DiffDelete, "close to "},
-                               {DiffEqual, "sign"},
-                               {DiffDelete, "ing"},
-                               {DiffInsert, "s"},
-                               {DiffEqual, " new "},
-                               {DiffDelete, "E"},
-                               {DiffInsert, "fi"},
-                               {DiffEqual, "ve"},
-                               {DiffInsert, "-yea"},
-                               {DiffEqual, "r"},
-                               {DiffDelete, "ton"},
-                               {DiffEqual, " deal"},
-                               {DiffInsert, " at Everton"},
-                       },
-                       []Diff{
-                               {DiffEqual, "James McCarthy "},
-                               {DiffDelete, "close to "},
-                               {DiffEqual, "sign"},
-                               {DiffDelete, "ing"},
-                               {DiffInsert, "s"},
-                               {DiffEqual, " new "},
-                               {DiffInsert, "five-year deal at "},
-                               {DiffEqual, "Everton"},
-                               {DiffDelete, " deal"},
-                       },
-               },
-       } {
-               actual := dmp.DiffCleanupSemantic(tc.Diffs)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-}
-
-func BenchmarkDiffCleanupSemantic(b *testing.B) {
-       s1, s2 := speedtestTexts()
-
-       dmp := New()
-
-       diffs := dmp.DiffMain(s1, s2, false)
-
-       b.ResetTimer()
-
-       for i := 0; i < b.N; i++ {
-               dmp.DiffCleanupSemantic(diffs)
-       }
-}
-
-func TestDiffCleanupEfficiency(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Diffs []Diff
-
-               Expected []Diff
-       }
-
-       dmp := New()
-       dmp.DiffEditCost = 4
-
-       for i, tc := range []TestCase{
-               {
-                       "Null case",
-                       []Diff{},
-                       []Diff{},
-               },
-               {
-                       "No elimination",
-                       []Diff{
-                               Diff{DiffDelete, "ab"},
-                               Diff{DiffInsert, "12"},
-                               Diff{DiffEqual, "wxyz"},
-                               Diff{DiffDelete, "cd"},
-                               Diff{DiffInsert, "34"},
-                       },
-                       []Diff{
-                               Diff{DiffDelete, "ab"},
-                               Diff{DiffInsert, "12"},
-                               Diff{DiffEqual, "wxyz"},
-                               Diff{DiffDelete, "cd"},
-                               Diff{DiffInsert, "34"},
-                       },
-               },
-               {
-                       "Four-edit elimination",
-                       []Diff{
-                               Diff{DiffDelete, "ab"},
-                               Diff{DiffInsert, "12"},
-                               Diff{DiffEqual, "xyz"},
-                               Diff{DiffDelete, "cd"},
-                               Diff{DiffInsert, "34"},
-                       },
-                       []Diff{
-                               Diff{DiffDelete, "abxyzcd"},
-                               Diff{DiffInsert, "12xyz34"},
-                       },
-               },
-               {
-                       "Three-edit elimination",
-                       []Diff{
-                               Diff{DiffInsert, "12"},
-                               Diff{DiffEqual, "x"},
-                               Diff{DiffDelete, "cd"},
-                               Diff{DiffInsert, "34"},
-                       },
-                       []Diff{
-                               Diff{DiffDelete, "xcd"},
-                               Diff{DiffInsert, "12x34"},
-                       },
-               },
-               {
-                       "Backpass elimination",
-                       []Diff{
-                               Diff{DiffDelete, "ab"},
-                               Diff{DiffInsert, "12"},
-                               Diff{DiffEqual, "xy"},
-                               Diff{DiffInsert, "34"},
-                               Diff{DiffEqual, "z"},
-                               Diff{DiffDelete, "cd"},
-                               Diff{DiffInsert, "56"},
-                       },
-                       []Diff{
-                               Diff{DiffDelete, "abxyzcd"},
-                               Diff{DiffInsert, "12xy34z56"},
-                       },
-               },
-       } {
-               actual := dmp.DiffCleanupEfficiency(tc.Diffs)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-
-       dmp.DiffEditCost = 5
-
-       for i, tc := range []TestCase{
-               {
-                       "High cost elimination",
-                       []Diff{
-                               Diff{DiffDelete, "ab"},
-                               Diff{DiffInsert, "12"},
-                               Diff{DiffEqual, "wxyz"},
-                               Diff{DiffDelete, "cd"},
-                               Diff{DiffInsert, "34"},
-                       },
-                       []Diff{
-                               Diff{DiffDelete, "abwxyzcd"},
-                               Diff{DiffInsert, "12wxyz34"},
-                       },
-               },
-       } {
-               actual := dmp.DiffCleanupEfficiency(tc.Diffs)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-}
-
-func TestDiffPrettyHtml(t *testing.T) {
-       type TestCase struct {
-               Diffs []Diff
-
-               Expected string
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {
-                       Diffs: []Diff{
-                               {DiffEqual, "a\n"},
-                               {DiffDelete, "<B>b</B>"},
-                               {DiffInsert, "c&d"},
-                       },
-
-                       Expected: "<span>a&para;<br></span><del style=\"background:#ffe6e6;\">&lt;B&gt;b&lt;/B&gt;</del><ins style=\"background:#e6ffe6;\">c&amp;d</ins>",
-               },
-       } {
-               actual := dmp.DiffPrettyHtml(tc.Diffs)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-}
-
-func TestDiffPrettyText(t *testing.T) {
-       type TestCase struct {
-               Diffs []Diff
-
-               Expected string
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {
-                       Diffs: []Diff{
-                               {DiffEqual, "a\n"},
-                               {DiffDelete, "<B>b</B>"},
-                               {DiffInsert, "c&d"},
-                       },
-
-                       Expected: "a\n\x1b[31m<B>b</B>\x1b[0m\x1b[32mc&d\x1b[0m",
-               },
-       } {
-               actual := dmp.DiffPrettyText(tc.Diffs)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-}
-
-func TestDiffText(t *testing.T) {
-       type TestCase struct {
-               Diffs []Diff
-
-               ExpectedText1 string
-               ExpectedText2 string
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {
-                       Diffs: []Diff{
-                               {DiffEqual, "jump"},
-                               {DiffDelete, "s"},
-                               {DiffInsert, "ed"},
-                               {DiffEqual, " over "},
-                               {DiffDelete, "the"},
-                               {DiffInsert, "a"},
-                               {DiffEqual, " lazy"},
-                       },
-
-                       ExpectedText1: "jumps over the lazy",
-                       ExpectedText2: "jumped over a lazy",
-               },
-       } {
-               actualText1 := dmp.DiffText1(tc.Diffs)
-               assert.Equal(t, tc.ExpectedText1, actualText1, fmt.Sprintf("Test case #%d, %#v", i, tc))
-
-               actualText2 := dmp.DiffText2(tc.Diffs)
-               assert.Equal(t, tc.ExpectedText2, actualText2, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-}
-
-func TestDiffDelta(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Text  string
-               Delta string
-
-               ErrorMessagePrefix string
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {"Delta shorter than text", "jumps over the lazyx", "=4\t-1\t+ed\t=6\t-3\t+a\t=5\t+old dog", "Delta length (19) is different from source text length (20)"},
-               {"Delta longer than text", "umps over the lazy", "=4\t-1\t+ed\t=6\t-3\t+a\t=5\t+old dog", "Delta length (19) is different from source text length (18)"},
-               {"Invalid URL escaping", "", "+%c3%xy", "invalid URL escape \"%xy\""},
-               {"Invalid UTF-8 sequence", "", "+%c3xy", "invalid UTF-8 token: \"\\xc3xy\""},
-               {"Invalid diff operation", "", "a", "Invalid diff operation in DiffFromDelta: a"},
-               {"Invalid diff syntax", "", "-", "strconv.ParseInt: parsing \"\": invalid syntax"},
-               {"Negative number in delta", "", "--1", "Negative number in DiffFromDelta: -1"},
-               {"Empty case", "", "", ""},
-       } {
-               diffs, err := dmp.DiffFromDelta(tc.Text, tc.Delta)
-               msg := fmt.Sprintf("Test case #%d, %s", i, tc.Name)
-               if tc.ErrorMessagePrefix == "" {
-                       assert.Nil(t, err, msg)
-                       assert.Nil(t, diffs, msg)
-               } else {
-                       e := err.Error()
-                       if strings.HasPrefix(e, tc.ErrorMessagePrefix) {
-                               e = tc.ErrorMessagePrefix
-                       }
-                       assert.Nil(t, diffs, msg)
-                       assert.Equal(t, tc.ErrorMessagePrefix, e, msg)
-               }
-       }
-
-       // Convert a diff into delta string.
-       diffs := []Diff{
-               Diff{DiffEqual, "jump"},
-               Diff{DiffDelete, "s"},
-               Diff{DiffInsert, "ed"},
-               Diff{DiffEqual, " over "},
-               Diff{DiffDelete, "the"},
-               Diff{DiffInsert, "a"},
-               Diff{DiffEqual, " lazy"},
-               Diff{DiffInsert, "old dog"},
-       }
-       text1 := dmp.DiffText1(diffs)
-       assert.Equal(t, "jumps over the lazy", text1)
-
-       delta := dmp.DiffToDelta(diffs)
-       assert.Equal(t, "=4\t-1\t+ed\t=6\t-3\t+a\t=5\t+old dog", delta)
-
-       // Convert delta string into a diff.
-       deltaDiffs, err := dmp.DiffFromDelta(text1, delta)
-       assert.Equal(t, diffs, deltaDiffs)
-
-       // Test deltas with special characters.
-       diffs = []Diff{
-               Diff{DiffEqual, "\u0680 \x00 \t %"},
-               Diff{DiffDelete, "\u0681 \x01 \n ^"},
-               Diff{DiffInsert, "\u0682 \x02 \\ |"},
-       }
-       text1 = dmp.DiffText1(diffs)
-       assert.Equal(t, "\u0680 \x00 \t %\u0681 \x01 \n ^", text1)
-
-       // Lowercase, due to UrlEncode uses lower.
-       delta = dmp.DiffToDelta(diffs)
-       assert.Equal(t, "=7\t-7\t+%DA%82 %02 %5C %7C", delta)
-
-       deltaDiffs, err = dmp.DiffFromDelta(text1, delta)
-       assert.Equal(t, diffs, deltaDiffs)
-       assert.Nil(t, err)
-
-       // Verify pool of unchanged characters.
-       diffs = []Diff{
-               Diff{DiffInsert, "A-Z a-z 0-9 - _ . ! ~ * ' ( ) ; / ? : @ & = + $ , # "},
-       }
-
-       delta = dmp.DiffToDelta(diffs)
-       assert.Equal(t, "+A-Z a-z 0-9 - _ . ! ~ * ' ( ) ; / ? : @ & = + $ , # ", delta, "Unchanged characters.")
-
-       // Convert delta string into a diff.
-       deltaDiffs, err = dmp.DiffFromDelta("", delta)
-       assert.Equal(t, diffs, deltaDiffs)
-       assert.Nil(t, err)
-}
-
-func TestDiffXIndex(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Diffs    []Diff
-               Location int
-
-               Expected int
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {"Translation on equality", []Diff{{DiffDelete, "a"}, {DiffInsert, "1234"}, {DiffEqual, "xyz"}}, 2, 5},
-               {"Translation on deletion", []Diff{{DiffEqual, "a"}, {DiffDelete, "1234"}, {DiffEqual, "xyz"}}, 3, 1},
-       } {
-               actual := dmp.DiffXIndex(tc.Diffs, tc.Location)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-}
-
-func TestDiffLevenshtein(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Diffs []Diff
-
-               Expected int
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {"Levenshtein with trailing equality", []Diff{{DiffDelete, "абв"}, {DiffInsert, "1234"}, {DiffEqual, "эюя"}}, 4},
-               {"Levenshtein with leading equality", []Diff{{DiffEqual, "эюя"}, {DiffDelete, "абв"}, {DiffInsert, "1234"}}, 4},
-               {"Levenshtein with middle equality", []Diff{{DiffDelete, "абв"}, {DiffEqual, "эюя"}, {DiffInsert, "1234"}}, 7},
-       } {
-               actual := dmp.DiffLevenshtein(tc.Diffs)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-}
-
-func TestDiffBisect(t *testing.T) {
-       type TestCase struct {
-               Name string
-
-               Time time.Time
-
-               Expected []Diff
-       }
-
-       dmp := New()
-
-       for i, tc := range []TestCase{
-               {
-                       Name: "normal",
-                       Time: time.Date(9999, time.December, 31, 23, 59, 59, 59, time.UTC),
-
-                       Expected: []Diff{
-                               {DiffDelete, "c"},
-                               {DiffInsert, "m"},
-                               {DiffEqual, "a"},
-                               {DiffDelete, "t"},
-                               {DiffInsert, "p"},
-                       },
-               },
-               {
-                       Name: "Negative deadlines count as having infinite time",
-                       Time: time.Date(0001, time.January, 01, 00, 00, 00, 00, time.UTC),
-
-                       Expected: []Diff{
-                               {DiffDelete, "c"},
-                               {DiffInsert, "m"},
-                               {DiffEqual, "a"},
-                               {DiffDelete, "t"},
-                               {DiffInsert, "p"},
-                       },
-               },
-               {
-                       Name: "Timeout",
-                       Time: time.Now().Add(time.Nanosecond),
-
-                       Expected: []Diff{
-                               {DiffDelete, "cat"},
-                               {DiffInsert, "map"},
-                       },
-               },
-       } {
-               actual := dmp.DiffBisect("cat", "map", tc.Time)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %s", i, tc.Name))
-       }
-
-       // Test for invalid UTF-8 sequences
-       assert.Equal(t, []Diff{
-               Diff{DiffEqual, "��"},
-       }, dmp.DiffBisect("\xe0\xe5", "\xe0\xe5", time.Now().Add(time.Minute)))
-}
-
-func TestDiffMain(t *testing.T) {
-       type TestCase struct {
-               Text1 string
-               Text2 string
-
-               Expected []Diff
-       }
-
-       dmp := New()
-
-       // Perform a trivial diff.
-       for i, tc := range []TestCase{
-               {
-                       "",
-                       "",
-                       nil,
-               },
-               {
-                       "abc",
-                       "abc",
-                       []Diff{Diff{DiffEqual, "abc"}},
-               },
-               {
-                       "abc",
-                       "ab123c",
-                       []Diff{Diff{DiffEqual, "ab"}, Diff{DiffInsert, "123"}, Diff{DiffEqual, "c"}},
-               },
-               {
-                       "a123bc",
-                       "abc",
-                       []Diff{Diff{DiffEqual, "a"}, Diff{DiffDelete, "123"}, Diff{DiffEqual, "bc"}},
-               },
-               {
-                       "abc",
-                       "a123b456c",
-                       []Diff{Diff{DiffEqual, "a"}, Diff{DiffInsert, "123"}, Diff{DiffEqual, "b"}, Diff{DiffInsert, "456"}, Diff{DiffEqual, "c"}},
-               },
-               {
-                       "a123b456c",
-                       "abc",
-                       []Diff{Diff{DiffEqual, "a"}, Diff{DiffDelete, "123"}, Diff{DiffEqual, "b"}, Diff{DiffDelete, "456"}, Diff{DiffEqual, "c"}},
-               },
-       } {
-               actual := dmp.DiffMain(tc.Text1, tc.Text2, false)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-
-       // Perform a real diff and switch off the timeout.
-       dmp.DiffTimeout = 0
-
-       for i, tc := range []TestCase{
-               {
-                       "a",
-                       "b",
-                       []Diff{Diff{DiffDelete, "a"}, Diff{DiffInsert, "b"}},
-               },
-               {
-                       "Apples are a fruit.",
-                       "Bananas are also fruit.",
-                       []Diff{
-                               Diff{DiffDelete, "Apple"},
-                               Diff{DiffInsert, "Banana"},
-                               Diff{DiffEqual, "s are a"},
-                               Diff{DiffInsert, "lso"},
-                               Diff{DiffEqual, " fruit."},
-                       },
-               },
-               {
-                       "ax\t",
-                       "\u0680x\u0000",
-                       []Diff{
-                               Diff{DiffDelete, "a"},
-                               Diff{DiffInsert, "\u0680"},
-                               Diff{DiffEqual, "x"},
-                               Diff{DiffDelete, "\t"},
-                               Diff{DiffInsert, "\u0000"},
-                       },
-               },
-               {
-                       "1ayb2",
-                       "abxab",
-                       []Diff{
-                               Diff{DiffDelete, "1"},
-                               Diff{DiffEqual, "a"},
-                               Diff{DiffDelete, "y"},
-                               Diff{DiffEqual, "b"},
-                               Diff{DiffDelete, "2"},
-                               Diff{DiffInsert, "xab"},
-                       },
-               },
-               {
-                       "abcy",
-                       "xaxcxabc",
-                       []Diff{
-                               Diff{DiffInsert, "xaxcx"},
-                               Diff{DiffEqual, "abc"}, Diff{DiffDelete, "y"},
-                       },
-               },
-               {
-                       "ABCDa=bcd=efghijklmnopqrsEFGHIJKLMNOefg",
-                       "a-bcd-efghijklmnopqrs",
-                       []Diff{
-                               Diff{DiffDelete, "ABCD"},
-                               Diff{DiffEqual, "a"},
-                               Diff{DiffDelete, "="},
-                               Diff{DiffInsert, "-"},
-                               Diff{DiffEqual, "bcd"},
-                               Diff{DiffDelete, "="},
-                               Diff{DiffInsert, "-"},
-                               Diff{DiffEqual, "efghijklmnopqrs"},
-                               Diff{DiffDelete, "EFGHIJKLMNOefg"},
-                       },
-               },
-               {
-                       "a [[Pennsylvania]] and [[New",
-                       " and [[Pennsylvania]]",
-                       []Diff{
-                               Diff{DiffInsert, " "},
-                               Diff{DiffEqual, "a"},
-                               Diff{DiffInsert, "nd"},
-                               Diff{DiffEqual, " [[Pennsylvania]]"},
-                               Diff{DiffDelete, " and [[New"},
-                       },
-               },
-       } {
-               actual := dmp.DiffMain(tc.Text1, tc.Text2, false)
-               assert.Equal(t, tc.Expected, actual, fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-
-       // Test for invalid UTF-8 sequences
-       assert.Equal(t, []Diff{
-               Diff{DiffDelete, "��"},
-       }, dmp.DiffMain("\xe0\xe5", "", false))
-}
-
-func TestDiffMainWithTimeout(t *testing.T) {
-       dmp := New()
-       dmp.DiffTimeout = 200 * time.Millisecond
-
-       a := "`Twas brillig, and the slithy toves\nDid gyre and gimble in the wabe:\nAll mimsy were the borogoves,\nAnd the mome raths outgrabe.\n"
-       b := "I am the very model of a modern major general,\nI've information vegetable, animal, and mineral,\nI know the kings of England, and I quote the fights historical,\nFrom Marathon to Waterloo, in order categorical.\n"
-       // Increase the text lengths by 1024 times to ensure a timeout.
-       for x := 0; x < 13; x++ {
-               a = a + a
-               b = b + b
-       }
-
-       startTime := time.Now()
-       dmp.DiffMain(a, b, true)
-       endTime := time.Now()
-
-       delta := endTime.Sub(startTime)
-
-       // Test that we took at least the timeout period.
-       assert.True(t, delta >= dmp.DiffTimeout, fmt.Sprintf("%v !>= %v", delta, dmp.DiffTimeout))
-
-       // Test that we didn't take forever (be very forgiving). Theoretically this test could fail very occasionally if the OS task swaps or locks up for a second at the wrong moment.
-       assert.True(t, delta < (dmp.DiffTimeout*100), fmt.Sprintf("%v !< %v", delta, dmp.DiffTimeout*100))
-}
-
-func TestDiffMainWithCheckLines(t *testing.T) {
-       type TestCase struct {
-               Text1 string
-               Text2 string
-       }
-
-       dmp := New()
-       dmp.DiffTimeout = 0
-
-       // Test cases must be at least 100 chars long to pass the cutoff.
-       for i, tc := range []TestCase{
-               {
-                       "1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n",
-                       "abcdefghij\nabcdefghij\nabcdefghij\nabcdefghij\nabcdefghij\nabcdefghij\nabcdefghij\nabcdefghij\nabcdefghij\nabcdefghij\nabcdefghij\nabcdefghij\nabcdefghij\n",
-               },
-               {
-                       "1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
-                       "abcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghij",
-               },
-               {
-                       "1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n1234567890\n",
-                       "abcdefghij\n1234567890\n1234567890\n1234567890\nabcdefghij\n1234567890\n1234567890\n1234567890\nabcdefghij\n1234567890\n1234567890\n1234567890\nabcdefghij\n",
-               },
-       } {
-               resultWithoutCheckLines := dmp.DiffMain(tc.Text1, tc.Text2, false)
-               resultWithCheckLines := dmp.DiffMain(tc.Text1, tc.Text2, true)
-
-               // TODO this fails for the third test case, why?
-               if i != 2 {
-                       assert.Equal(t, resultWithoutCheckLines, resultWithCheckLines, fmt.Sprintf("Test case #%d, %#v", i, tc))
-               }
-               assert.Equal(t, diffRebuildTexts(resultWithoutCheckLines), diffRebuildTexts(resultWithCheckLines), fmt.Sprintf("Test case #%d, %#v", i, tc))
-       }
-}
-
-func BenchmarkDiffMain(bench *testing.B) {
-       s1 := "`Twas brillig, and the slithy toves\nDid gyre and gimble in the wabe:\nAll mimsy were the borogoves,\nAnd the mome raths outgrabe.\n"
-       s2 := "I am the very model of a modern major general,\nI've information vegetable, animal, and mineral,\nI know the kings of England, and I quote the fights historical,\nFrom Marathon to Waterloo, in order categorical.\n"
-
-       // Increase the text lengths by 1024 times to ensure a timeout.
-       for x := 0; x < 10; x++ {
-               s1 = s1 + s1
-               s2 = s2 + s2
-       }
-
-       dmp := New()
-       dmp.DiffTimeout = time.Second
-
-       bench.ResetTimer()
-
-       for i := 0; i < bench.N; i++ {
-               dmp.DiffMain(s1, s2, true)
-       }
-}
-
-func BenchmarkDiffMainLarge(b *testing.B) {
-       s1, s2 := speedtestTexts()
-
-       dmp := New()
-
-       b.ResetTimer()
-
-       for i := 0; i < b.N; i++ {
-               dmp.DiffMain(s1, s2, true)
-       }
-}
-
-func BenchmarkDiffMainRunesLargeLines(b *testing.B) {
-       s1, s2 := speedtestTexts()
-
-       dmp := New()
-
-       b.ResetTimer()
-
-       for i := 0; i < b.N; i++ {
-               text1, text2, linearray := dmp.DiffLinesToRunes(s1, s2)
-
-               diffs := dmp.DiffMainRunes(text1, text2, false)
-               diffs = dmp.DiffCharsToLines(diffs, linearray)
-       }
-}