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// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package git
import (
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
const exampleDiff = `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`
const breakingDiff = `diff --git a/aaa.sql b/aaa.sql
index d8e4c92..19dc8ad 100644
--- a/aaa.sql
+++ b/aaa.sql
@@ -1,9 +1,10 @@
--some comment
--- some comment 5
+--some coment 2
+-- some comment 3
create or replace procedure test(p1 varchar2)
is
begin
---new comment
dbms_output.put_line(p1);
+--some other comment
end;
/
`
func TestCutDiffAroundLine(t *testing.T) {
result, err := CutDiffAroundLine(strings.NewReader(exampleDiff), 4, false, 3)
assert.NoError(t, err)
resultByLine := strings.Split(result, "\n")
assert.Len(t, resultByLine, 7)
// Check if headers got transferred
assert.Equal(t, "diff --git a/README.md b/README.md", resultByLine[0])
assert.Equal(t, "--- a/README.md", resultByLine[1])
assert.Equal(t, "+++ b/README.md", resultByLine[2])
// Check if hunk header is calculated correctly
assert.Equal(t, "@@ -2,2 +3,2 @@", resultByLine[3])
// Check if line got transferred
assert.Equal(t, "+ Build Status", resultByLine[4])
// Must be same result as before since old line 3 == new line 5
newResult, err := CutDiffAroundLine(strings.NewReader(exampleDiff), 3, true, 3)
assert.NoError(t, err)
assert.Equal(t, result, newResult, "Must be same result as before since old line 3 == new line 5")
newResult, err = CutDiffAroundLine(strings.NewReader(exampleDiff), 6, false, 300)
assert.NoError(t, err)
assert.Equal(t, exampleDiff, newResult)
emptyResult, err := CutDiffAroundLine(strings.NewReader(exampleDiff), 6, false, 0)
assert.NoError(t, err)
assert.Empty(t, emptyResult)
// Line is out of scope
emptyResult, err = CutDiffAroundLine(strings.NewReader(exampleDiff), 434, false, 0)
assert.NoError(t, err)
assert.Empty(t, emptyResult)
// Handle minus diffs properly
minusDiff, err := CutDiffAroundLine(strings.NewReader(breakingDiff), 2, false, 4)
assert.NoError(t, err)
expected := `diff --git a/aaa.sql b/aaa.sql
--- a/aaa.sql
+++ b/aaa.sql
@@ -1,9 +1,10 @@
--some comment
--- some comment 5
+--some coment 2`
assert.Equal(t, expected, minusDiff)
// Handle minus diffs properly
minusDiff, err = CutDiffAroundLine(strings.NewReader(breakingDiff), 3, false, 4)
assert.NoError(t, err)
expected = `diff --git a/aaa.sql b/aaa.sql
--- a/aaa.sql
+++ b/aaa.sql
@@ -1,9 +1,10 @@
--some comment
--- some comment 5
+--some coment 2
+-- some comment 3`
assert.Equal(t, expected, minusDiff)
}
func BenchmarkCutDiffAroundLine(b *testing.B) {
for n := 0; n < b.N; n++ {
CutDiffAroundLine(strings.NewReader(exampleDiff), 3, true, 3)
}
}
func ExampleCutDiffAroundLine() {
const 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, _ := CutDiffAroundLine(strings.NewReader(diff), 4, false, 3)
println(result)
}
func TestParseDiffHunkString(t *testing.T) {
leftLine, leftHunk, rightLine, rightHunk := ParseDiffHunkString("@@ -19,3 +19,5 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER")
assert.EqualValues(t, 19, leftLine)
assert.EqualValues(t, 3, leftHunk)
assert.EqualValues(t, 19, rightLine)
assert.EqualValues(t, 5, rightHunk)
}
|
