mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-28 13:49:13 -05:00
3310dd1d19
Use Unicode placeholders to replace HTML tags and HTML entities first, then do diff, then recover the HTML tags and HTML entities. Now the code diff with highlight has stable behavior, and won't emit broken tags.
664 lines
17 KiB
Go
664 lines
17 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
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// Copyright 2019 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package gitdiff
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import (
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"fmt"
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"strconv"
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"strings"
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"testing"
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"code.gitea.io/gitea/models/db"
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issues_model "code.gitea.io/gitea/models/issues"
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"code.gitea.io/gitea/models/unittest"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/json"
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"code.gitea.io/gitea/modules/setting"
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dmp "github.com/sergi/go-diff/diffmatchpatch"
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"github.com/stretchr/testify/assert"
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)
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func TestDiffToHTML(t *testing.T) {
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assert.Equal(t, "foo <span class=\"added-code\">bar</span> biz", diffToHTML(nil, []dmp.Diff{
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{Type: dmp.DiffEqual, Text: "foo "},
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{Type: dmp.DiffInsert, Text: "bar"},
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{Type: dmp.DiffDelete, Text: " baz"},
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{Type: dmp.DiffEqual, Text: " biz"},
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}, DiffLineAdd))
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assert.Equal(t, "foo <span class=\"removed-code\">bar</span> biz", diffToHTML(nil, []dmp.Diff{
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{Type: dmp.DiffEqual, Text: "foo "},
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{Type: dmp.DiffDelete, Text: "bar"},
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{Type: dmp.DiffInsert, Text: " baz"},
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{Type: dmp.DiffEqual, Text: " biz"},
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}, DiffLineDel))
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}
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func TestParsePatch_skipTo(t *testing.T) {
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type testcase struct {
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name string
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gitdiff string
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wantErr bool
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addition int
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deletion int
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oldFilename string
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filename string
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skipTo string
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}
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tests := []testcase{
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{
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name: "readme.md2readme.md",
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gitdiff: `diff --git "a/A \\ B" "b/A \\ B"
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--- "a/A \\ B"
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+++ "b/A \\ B"
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@@ -1,3 +1,6 @@
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# gitea-github-migrator
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+
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+ Build Status
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- Latest Release
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Docker Pulls
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+ cut off
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+ cut off
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diff --git "\\a/README.md" "\\b/README.md"
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--- "\\a/README.md"
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+++ "\\b/README.md"
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@@ -1,3 +1,6 @@
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# gitea-github-migrator
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+
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+ Build Status
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- Latest Release
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Docker Pulls
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+ cut off
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+ cut off
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`,
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addition: 4,
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deletion: 1,
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filename: "README.md",
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oldFilename: "README.md",
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skipTo: "README.md",
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},
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{
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name: "A \\ B",
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gitdiff: `diff --git "a/A \\ B" "b/A \\ B"
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--- "a/A \\ B"
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+++ "b/A \\ B"
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@@ -1,3 +1,6 @@
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# gitea-github-migrator
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+
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+ Build Status
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- Latest Release
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Docker Pulls
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+ cut off
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+ cut off`,
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addition: 4,
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deletion: 1,
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filename: "A \\ B",
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oldFilename: "A \\ B",
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skipTo: "A \\ B",
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},
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{
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name: "A \\ B",
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gitdiff: `diff --git "\\a/README.md" "\\b/README.md"
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--- "\\a/README.md"
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+++ "\\b/README.md"
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@@ -1,3 +1,6 @@
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# gitea-github-migrator
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+
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+ Build Status
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- Latest Release
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Docker Pulls
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+ cut off
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+ cut off
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diff --git "a/A \\ B" "b/A \\ B"
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--- "a/A \\ B"
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+++ "b/A \\ B"
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@@ -1,3 +1,6 @@
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# gitea-github-migrator
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+
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+ Build Status
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- Latest Release
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Docker Pulls
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+ cut off
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+ cut off`,
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addition: 4,
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deletion: 1,
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filename: "A \\ B",
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oldFilename: "A \\ B",
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skipTo: "A \\ B",
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},
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{
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name: "readme.md2readme.md",
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gitdiff: `diff --git "a/A \\ B" "b/A \\ B"
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--- "a/A \\ B"
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+++ "b/A \\ B"
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@@ -1,3 +1,6 @@
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# gitea-github-migrator
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+
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+ Build Status
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- Latest Release
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Docker Pulls
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+ cut off
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+ cut off
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diff --git "a/A \\ B" "b/A \\ B"
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--- "a/A \\ B"
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+++ "b/A \\ B"
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@@ -1,3 +1,6 @@
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# gitea-github-migrator
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+
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+ Build Status
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- Latest Release
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Docker Pulls
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+ cut off
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+ cut off
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diff --git "\\a/README.md" "\\b/README.md"
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--- "\\a/README.md"
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+++ "\\b/README.md"
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@@ -1,3 +1,6 @@
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# gitea-github-migrator
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+
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+ Build Status
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- Latest Release
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Docker Pulls
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+ cut off
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+ cut off
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`,
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addition: 4,
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deletion: 1,
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filename: "README.md",
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oldFilename: "README.md",
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skipTo: "README.md",
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},
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}
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for _, testcase := range tests {
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t.Run(testcase.name, func(t *testing.T) {
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got, err := ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, strings.NewReader(testcase.gitdiff), testcase.skipTo)
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if (err != nil) != testcase.wantErr {
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t.Errorf("ParsePatch(%q) error = %v, wantErr %v", testcase.name, err, testcase.wantErr)
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return
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}
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gotMarshaled, _ := json.MarshalIndent(got, "", " ")
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if got.NumFiles != 1 {
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t.Errorf("ParsePath(%q) did not receive 1 file:\n%s", testcase.name, string(gotMarshaled))
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return
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}
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if got.TotalAddition != testcase.addition {
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t.Errorf("ParsePath(%q) does not have correct totalAddition %d, wanted %d", testcase.name, got.TotalAddition, testcase.addition)
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}
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if got.TotalDeletion != testcase.deletion {
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t.Errorf("ParsePath(%q) did not have correct totalDeletion %d, wanted %d", testcase.name, got.TotalDeletion, testcase.deletion)
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}
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file := got.Files[0]
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if file.Addition != testcase.addition {
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t.Errorf("ParsePath(%q) does not have correct file addition %d, wanted %d", testcase.name, file.Addition, testcase.addition)
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}
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if file.Deletion != testcase.deletion {
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t.Errorf("ParsePath(%q) did not have correct file deletion %d, wanted %d", testcase.name, file.Deletion, testcase.deletion)
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}
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if file.OldName != testcase.oldFilename {
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t.Errorf("ParsePath(%q) did not have correct OldName %q, wanted %q", testcase.name, file.OldName, testcase.oldFilename)
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}
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if file.Name != testcase.filename {
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t.Errorf("ParsePath(%q) did not have correct Name %q, wanted %q", testcase.name, file.Name, testcase.filename)
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}
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})
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}
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}
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func TestParsePatch_singlefile(t *testing.T) {
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type testcase struct {
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name string
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gitdiff string
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wantErr bool
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addition int
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deletion int
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oldFilename string
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filename string
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}
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tests := []testcase{
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{
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name: "readme.md2readme.md",
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gitdiff: `diff --git "\\a/README.md" "\\b/README.md"
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--- "\\a/README.md"
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+++ "\\b/README.md"
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@@ -1,3 +1,6 @@
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# gitea-github-migrator
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+
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+ Build Status
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- Latest Release
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Docker Pulls
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+ cut off
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+ cut off
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`,
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addition: 4,
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deletion: 1,
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filename: "README.md",
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oldFilename: "README.md",
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},
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{
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name: "A \\ B",
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gitdiff: `diff --git "a/A \\ B" "b/A \\ B"
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--- "a/A \\ B"
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+++ "b/A \\ B"
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@@ -1,3 +1,6 @@
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# gitea-github-migrator
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+
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+ Build Status
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- Latest Release
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Docker Pulls
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+ cut off
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+ cut off`,
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addition: 4,
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deletion: 1,
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filename: "A \\ B",
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oldFilename: "A \\ B",
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},
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{
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name: "really weird filename",
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gitdiff: `diff --git "\\a/a b/file b/a a/file" "\\b/a b/file b/a a/file"
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index d2186f1..f5c8ed2 100644
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--- "\\a/a b/file b/a a/file" ` + `
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+++ "\\b/a b/file b/a a/file" ` + `
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@@ -1,3 +1,2 @@
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Create a weird file.
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` + `
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-and what does diff do here?
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\ No newline at end of file`,
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addition: 0,
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deletion: 1,
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filename: "a b/file b/a a/file",
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oldFilename: "a b/file b/a a/file",
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},
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{
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name: "delete file with blanks",
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gitdiff: `diff --git "\\a/file with blanks" "\\b/file with blanks"
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deleted file mode 100644
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index 898651a..0000000
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--- "\\a/file with blanks" ` + `
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+++ /dev/null
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@@ -1,5 +0,0 @@
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-a blank file
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-
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-has a couple o line
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-
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-the 5th line is the last
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`,
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addition: 0,
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deletion: 5,
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filename: "file with blanks",
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oldFilename: "file with blanks",
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},
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{
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name: "rename a—as",
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gitdiff: `diff --git "a/\360\243\220\265b\342\200\240vs" "b/a\342\200\224as"
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similarity index 100%
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rename from "\360\243\220\265b\342\200\240vs"
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rename to "a\342\200\224as"
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`,
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addition: 0,
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deletion: 0,
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oldFilename: "𣐵b†vs",
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filename: "a—as",
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},
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{
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name: "rename with spaces",
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gitdiff: `diff --git "\\a/a b/file b/a a/file" "\\b/a b/a a/file b/b file"
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similarity index 100%
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rename from a b/file b/a a/file
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rename to a b/a a/file b/b file
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`,
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oldFilename: "a b/file b/a a/file",
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filename: "a b/a a/file b/b file",
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},
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{
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name: "ambiguous deleted",
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gitdiff: `diff --git a/b b/b b/b b/b
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deleted file mode 100644
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index 92e798b..0000000
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--- a/b b/b` + "\t" + `
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+++ /dev/null
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@@ -1 +0,0 @@
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-b b/b
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`,
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oldFilename: "b b/b",
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filename: "b b/b",
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addition: 0,
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deletion: 1,
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},
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{
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name: "ambiguous addition",
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gitdiff: `diff --git a/b b/b b/b b/b
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new file mode 100644
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index 0000000..92e798b
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--- /dev/null
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+++ b/b b/b` + "\t" + `
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@@ -0,0 +1 @@
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+b b/b
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`,
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oldFilename: "b b/b",
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filename: "b b/b",
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addition: 1,
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deletion: 0,
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},
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{
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name: "rename",
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gitdiff: `diff --git a/b b/b b/b b/b b/b b/b
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similarity index 100%
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rename from b b/b b/b b/b b/b
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rename to b
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`,
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oldFilename: "b b/b b/b b/b b/b",
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filename: "b",
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},
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{
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name: "ambiguous 1",
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gitdiff: `diff --git a/b b/b b/b b/b b/b b/b
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similarity index 100%
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rename from b b/b b/b b/b b/b
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rename to b
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`,
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oldFilename: "b b/b b/b b/b b/b",
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filename: "b",
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},
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{
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name: "ambiguous 2",
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gitdiff: `diff --git a/b b/b b/b b/b b/b b/b
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similarity index 100%
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rename from b b/b b/b b/b
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rename to b b/b
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`,
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oldFilename: "b b/b b/b b/b",
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filename: "b b/b",
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},
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{
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name: "minuses-and-pluses",
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gitdiff: `diff --git a/minuses-and-pluses b/minuses-and-pluses
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index 6961180..9ba1a00 100644
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--- a/minuses-and-pluses
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+++ b/minuses-and-pluses
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@@ -1,4 +1,4 @@
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--- 1st line
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-++ 2nd line
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--- 3rd line
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-++ 4th line
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+++ 1st line
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+-- 2nd line
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+++ 3rd line
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+-- 4th line
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`,
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oldFilename: "minuses-and-pluses",
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filename: "minuses-and-pluses",
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addition: 4,
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deletion: 4,
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},
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}
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for _, testcase := range tests {
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t.Run(testcase.name, func(t *testing.T) {
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got, err := ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, strings.NewReader(testcase.gitdiff), "")
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if (err != nil) != testcase.wantErr {
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t.Errorf("ParsePatch(%q) error = %v, wantErr %v", testcase.name, err, testcase.wantErr)
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return
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}
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gotMarshaled, _ := json.MarshalIndent(got, "", " ")
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if got.NumFiles != 1 {
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t.Errorf("ParsePath(%q) did not receive 1 file:\n%s", testcase.name, string(gotMarshaled))
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return
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}
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if got.TotalAddition != testcase.addition {
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t.Errorf("ParsePath(%q) does not have correct totalAddition %d, wanted %d", testcase.name, got.TotalAddition, testcase.addition)
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}
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if got.TotalDeletion != testcase.deletion {
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t.Errorf("ParsePath(%q) did not have correct totalDeletion %d, wanted %d", testcase.name, got.TotalDeletion, testcase.deletion)
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}
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file := got.Files[0]
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if file.Addition != testcase.addition {
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t.Errorf("ParsePath(%q) does not have correct file addition %d, wanted %d", testcase.name, file.Addition, testcase.addition)
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}
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if file.Deletion != testcase.deletion {
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t.Errorf("ParsePath(%q) did not have correct file deletion %d, wanted %d", testcase.name, file.Deletion, testcase.deletion)
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}
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if file.OldName != testcase.oldFilename {
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t.Errorf("ParsePath(%q) did not have correct OldName %q, wanted %q", testcase.name, file.OldName, testcase.oldFilename)
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}
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if file.Name != testcase.filename {
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t.Errorf("ParsePath(%q) did not have correct Name %q, wanted %q", testcase.name, file.Name, testcase.filename)
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}
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})
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}
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|
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// Test max lines
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diffBuilder := &strings.Builder{}
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diff := `diff --git a/newfile2 b/newfile2
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new file mode 100644
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index 0000000..6bb8f39
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--- /dev/null
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+++ b/newfile2
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@@ -0,0 +1,35 @@
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`
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diffBuilder.WriteString(diff)
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for i := 0; i < 35; i++ {
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diffBuilder.WriteString("+line" + strconv.Itoa(i) + "\n")
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}
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diff = diffBuilder.String()
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result, err := ParsePatch(20, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, strings.NewReader(diff), "")
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if err != nil {
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t.Errorf("There should not be an error: %v", err)
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}
|
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if !result.Files[0].IsIncomplete {
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t.Errorf("Files should be incomplete! %v", result.Files[0])
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}
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result, err = ParsePatch(40, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, strings.NewReader(diff), "")
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if err != nil {
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t.Errorf("There should not be an error: %v", err)
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}
|
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if result.Files[0].IsIncomplete {
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t.Errorf("Files should not be incomplete! %v", result.Files[0])
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}
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result, err = ParsePatch(40, 5, setting.Git.MaxGitDiffFiles, strings.NewReader(diff), "")
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if err != nil {
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t.Errorf("There should not be an error: %v", err)
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}
|
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if !result.Files[0].IsIncomplete {
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t.Errorf("Files should be incomplete! %v", result.Files[0])
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}
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|
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// Test max characters
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diff = `diff --git a/newfile2 b/newfile2
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new file mode 100644
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index 0000000..6bb8f39
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--- /dev/null
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+++ b/newfile2
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@@ -0,0 +1,35 @@
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`
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diffBuilder.Reset()
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diffBuilder.WriteString(diff)
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|
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for i := 0; i < 33; i++ {
|
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diffBuilder.WriteString("+line" + strconv.Itoa(i) + "\n")
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}
|
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diffBuilder.WriteString("+line33")
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for i := 0; i < 512; i++ {
|
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diffBuilder.WriteString("0123456789ABCDEF")
|
|
}
|
|
diffBuilder.WriteByte('\n')
|
|
diffBuilder.WriteString("+line" + strconv.Itoa(34) + "\n")
|
|
diffBuilder.WriteString("+line" + strconv.Itoa(35) + "\n")
|
|
diff = diffBuilder.String()
|
|
|
|
result, err = ParsePatch(20, 4096, setting.Git.MaxGitDiffFiles, strings.NewReader(diff), "")
|
|
if err != nil {
|
|
t.Errorf("There should not be an error: %v", err)
|
|
}
|
|
if !result.Files[0].IsIncomplete {
|
|
t.Errorf("Files should be incomplete! %v", result.Files[0])
|
|
}
|
|
result, err = ParsePatch(40, 4096, setting.Git.MaxGitDiffFiles, strings.NewReader(diff), "")
|
|
if err != nil {
|
|
t.Errorf("There should not be an error: %v", err)
|
|
}
|
|
if !result.Files[0].IsIncomplete {
|
|
t.Errorf("Files should be incomplete! %v", result.Files[0])
|
|
}
|
|
|
|
diff = `diff --git "a/README.md" "b/README.md"
|
|
--- a/README.md
|
|
+++ b/README.md
|
|
@@ -1,3 +1,6 @@
|
|
# gitea-github-migrator
|
|
+
|
|
+ Build Status
|
|
- Latest Release
|
|
Docker Pulls
|
|
+ cut off
|
|
+ cut off`
|
|
result, err = ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, strings.NewReader(diff), "")
|
|
if err != nil {
|
|
t.Errorf("ParsePatch failed: %s", err)
|
|
}
|
|
|
|
diff2 := `diff --git "a/A \\ B" "b/A \\ B"
|
|
--- "a/A \\ B"
|
|
+++ "b/A \\ B"
|
|
@@ -1,3 +1,6 @@
|
|
# gitea-github-migrator
|
|
+
|
|
+ Build Status
|
|
- Latest Release
|
|
Docker Pulls
|
|
+ cut off
|
|
+ cut off`
|
|
result, err = ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, strings.NewReader(diff2), "")
|
|
if err != nil {
|
|
t.Errorf("ParsePatch failed: %s", err)
|
|
}
|
|
println(result)
|
|
|
|
diff2a := `diff --git "a/A \\ B" b/A/B
|
|
--- "a/A \\ B"
|
|
+++ b/A/B
|
|
@@ -1,3 +1,6 @@
|
|
# gitea-github-migrator
|
|
+
|
|
+ Build Status
|
|
- Latest Release
|
|
Docker Pulls
|
|
+ cut off
|
|
+ cut off`
|
|
result, err = ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, strings.NewReader(diff2a), "")
|
|
if err != nil {
|
|
t.Errorf("ParsePatch failed: %s", err)
|
|
}
|
|
println(result)
|
|
|
|
diff3 := `diff --git a/README.md b/README.md
|
|
--- a/README.md
|
|
+++ b/README.md
|
|
@@ -1,3 +1,6 @@
|
|
# gitea-github-migrator
|
|
+
|
|
+ Build Status
|
|
- Latest Release
|
|
Docker Pulls
|
|
+ cut off
|
|
+ cut off`
|
|
result, err = ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, strings.NewReader(diff3), "")
|
|
if err != nil {
|
|
t.Errorf("ParsePatch failed: %s", err)
|
|
}
|
|
println(result)
|
|
}
|
|
|
|
func setupDefaultDiff() *Diff {
|
|
return &Diff{
|
|
Files: []*DiffFile{
|
|
{
|
|
Name: "README.md",
|
|
Sections: []*DiffSection{
|
|
{
|
|
Lines: []*DiffLine{
|
|
{
|
|
LeftIdx: 4,
|
|
RightIdx: 4,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
}
|
|
|
|
func TestDiff_LoadComments(t *testing.T) {
|
|
assert.NoError(t, unittest.PrepareTestDatabase())
|
|
|
|
issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2}).(*issues_model.Issue)
|
|
user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1}).(*user_model.User)
|
|
diff := setupDefaultDiff()
|
|
assert.NoError(t, diff.LoadComments(db.DefaultContext, issue, user))
|
|
assert.Len(t, diff.Files[0].Sections[0].Lines[0].Comments, 2)
|
|
}
|
|
|
|
func TestDiffLine_CanComment(t *testing.T) {
|
|
assert.False(t, (&DiffLine{Type: DiffLineSection}).CanComment())
|
|
assert.False(t, (&DiffLine{Type: DiffLineAdd, Comments: []*issues_model.Comment{{Content: "bla"}}}).CanComment())
|
|
assert.True(t, (&DiffLine{Type: DiffLineAdd}).CanComment())
|
|
assert.True(t, (&DiffLine{Type: DiffLineDel}).CanComment())
|
|
assert.True(t, (&DiffLine{Type: DiffLinePlain}).CanComment())
|
|
}
|
|
|
|
func TestDiffLine_GetCommentSide(t *testing.T) {
|
|
assert.Equal(t, "previous", (&DiffLine{Comments: []*issues_model.Comment{{Line: -3}}}).GetCommentSide())
|
|
assert.Equal(t, "proposed", (&DiffLine{Comments: []*issues_model.Comment{{Line: 3}}}).GetCommentSide())
|
|
}
|
|
|
|
func TestGetDiffRangeWithWhitespaceBehavior(t *testing.T) {
|
|
gitRepo, err := git.OpenRepository(git.DefaultContext, "./testdata/academic-module")
|
|
if !assert.NoError(t, err) {
|
|
return
|
|
}
|
|
defer gitRepo.Close()
|
|
for _, behavior := range []string{"-w", "--ignore-space-at-eol", "-b", ""} {
|
|
diffs, err := GetDiff(gitRepo,
|
|
&DiffOptions{
|
|
AfterCommitID: "bd7063cc7c04689c4d082183d32a604ed27a24f9",
|
|
BeforeCommitID: "559c156f8e0178b71cb44355428f24001b08fc68",
|
|
MaxLines: setting.Git.MaxGitDiffLines,
|
|
MaxLineCharacters: setting.Git.MaxGitDiffLineCharacters,
|
|
MaxFiles: setting.Git.MaxGitDiffFiles,
|
|
WhitespaceBehavior: behavior,
|
|
})
|
|
assert.NoError(t, err, fmt.Sprintf("Error when diff with %s", behavior))
|
|
for _, f := range diffs.Files {
|
|
assert.True(t, len(f.Sections) > 0, fmt.Sprintf("%s should have sections", f.Name))
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestNoCrashes(t *testing.T) {
|
|
type testcase struct {
|
|
gitdiff string
|
|
}
|
|
|
|
tests := []testcase{
|
|
{
|
|
gitdiff: "diff --git \n--- a\t\n",
|
|
},
|
|
{
|
|
gitdiff: "diff --git \"0\n",
|
|
},
|
|
}
|
|
for _, testcase := range tests {
|
|
// It shouldn't crash, so don't care about the output.
|
|
ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, strings.NewReader(testcase.gitdiff), "")
|
|
}
|
|
}
|