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82 lines
2.4 KiB
82 lines
2.4 KiB
// Copyright 2020 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 git
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import (
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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const exampleDiff = `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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func TestCutDiffAroundLine(t *testing.T) {
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result := CutDiffAroundLine(strings.NewReader(exampleDiff), 4, false, 3)
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resultByLine := strings.Split(result, "\n")
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assert.Len(t, resultByLine, 7)
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// Check if headers got transferred
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assert.Equal(t, "diff --git a/README.md b/README.md", resultByLine[0])
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assert.Equal(t, "--- a/README.md", resultByLine[1])
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assert.Equal(t, "+++ b/README.md", resultByLine[2])
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// Check if hunk header is calculated correctly
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assert.Equal(t, "@@ -2,2 +3,2 @@", resultByLine[3])
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// Check if line got transferred
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assert.Equal(t, "+ Build Status", resultByLine[4])
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// Must be same result as before since old line 3 == new line 5
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newResult := CutDiffAroundLine(strings.NewReader(exampleDiff), 3, true, 3)
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assert.Equal(t, result, newResult, "Must be same result as before since old line 3 == new line 5")
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newResult = CutDiffAroundLine(strings.NewReader(exampleDiff), 6, false, 300)
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assert.Equal(t, exampleDiff, newResult)
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emptyResult := CutDiffAroundLine(strings.NewReader(exampleDiff), 6, false, 0)
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assert.Empty(t, emptyResult)
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// Line is out of scope
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emptyResult = CutDiffAroundLine(strings.NewReader(exampleDiff), 434, false, 0)
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assert.Empty(t, emptyResult)
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}
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func BenchmarkCutDiffAroundLine(b *testing.B) {
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for n := 0; n < b.N; n++ {
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CutDiffAroundLine(strings.NewReader(exampleDiff), 3, true, 3)
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}
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}
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func ExampleCutDiffAroundLine() {
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const diff = `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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result := CutDiffAroundLine(strings.NewReader(diff), 4, false, 3)
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println(result)
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}
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func TestParseDiffHunkString(t *testing.T) {
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leftLine, leftHunk, rightLine, rightHunk := ParseDiffHunkString("@@ -19,3 +19,5 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER")
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assert.EqualValues(t, 19, leftLine)
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assert.EqualValues(t, 3, leftHunk)
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assert.EqualValues(t, 19, rightLine)
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assert.EqualValues(t, 5, rightHunk)
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}
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