mirror of
https://github.com/jesseduffield/lazygit.git
synced 2025-04-15 11:56:37 +02:00
fdff2dec79
In go 1.22, loop variables are redeclared with each iteration of the loop, rather than simple updated on each iteration. This means that we no longer need to manually redeclare variables when they're closed over by a function.
642 lines
12 KiB
Go
642 lines
12 KiB
Go
package patch
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
const simpleDiff = `diff --git a/filename b/filename
|
|
index dcd3485..1ba5540 100644
|
|
--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,5 @@
|
|
apple
|
|
-orange
|
|
+grape
|
|
...
|
|
...
|
|
...
|
|
`
|
|
|
|
const addNewlineToEndOfFile = `diff --git a/filename b/filename
|
|
index 80a73f1..e48a11c 100644
|
|
--- a/filename
|
|
+++ b/filename
|
|
@@ -60,4 +60,4 @@ grape
|
|
...
|
|
...
|
|
...
|
|
-last line
|
|
\ No newline at end of file
|
|
+last line
|
|
`
|
|
|
|
const removeNewlinefromEndOfFile = `diff --git a/filename b/filename
|
|
index e48a11c..80a73f1 100644
|
|
--- a/filename
|
|
+++ b/filename
|
|
@@ -60,4 +60,4 @@ grape
|
|
...
|
|
...
|
|
...
|
|
-last line
|
|
+last line
|
|
\ No newline at end of file
|
|
`
|
|
|
|
const twoHunks = `diff --git a/filename b/filename
|
|
index e48a11c..b2ab81b 100644
|
|
--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,5 @@
|
|
apple
|
|
-grape
|
|
+orange
|
|
...
|
|
...
|
|
...
|
|
@@ -8,6 +8,8 @@ grape
|
|
...
|
|
...
|
|
...
|
|
+pear
|
|
+lemon
|
|
...
|
|
...
|
|
...
|
|
`
|
|
|
|
const twoHunksWithMoreAdditionsThanRemovals = `diff --git a/filename b/filename
|
|
index bac359d75..6e5b89f36 100644
|
|
--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,6 @@
|
|
apple
|
|
-grape
|
|
+orange
|
|
+kiwi
|
|
...
|
|
...
|
|
...
|
|
@@ -8,6 +9,8 @@ grape
|
|
...
|
|
...
|
|
...
|
|
+pear
|
|
+lemon
|
|
...
|
|
...
|
|
...
|
|
`
|
|
|
|
const twoChangesInOneHunk = `diff --git a/filename b/filename
|
|
index 9320895..6d79956 100644
|
|
--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,5 @@
|
|
apple
|
|
-grape
|
|
+kiwi
|
|
orange
|
|
-pear
|
|
+banana
|
|
lemon
|
|
`
|
|
|
|
const newFile = `diff --git a/newfile b/newfile
|
|
new file mode 100644
|
|
index 0000000..4e680cc
|
|
--- /dev/null
|
|
+++ b/newfile
|
|
@@ -0,0 +1,3 @@
|
|
+apple
|
|
+orange
|
|
+grape
|
|
`
|
|
|
|
const addNewlineToPreviouslyEmptyFile = `diff --git a/newfile b/newfile
|
|
index e69de29..c6568ea 100644
|
|
--- a/newfile
|
|
+++ b/newfile
|
|
@@ -0,0 +1 @@
|
|
+new line
|
|
\ No newline at end of file
|
|
`
|
|
|
|
const exampleHunk = `@@ -1,5 +1,5 @@
|
|
apple
|
|
-grape
|
|
+orange
|
|
...
|
|
...
|
|
...
|
|
`
|
|
|
|
func TestTransform(t *testing.T) {
|
|
type scenario struct {
|
|
testName string
|
|
filename string
|
|
diffText string
|
|
firstLineIndex int
|
|
lastLineIndex int
|
|
reverse bool
|
|
expected string
|
|
}
|
|
|
|
scenarios := []scenario{
|
|
{
|
|
testName: "nothing selected",
|
|
filename: "filename",
|
|
firstLineIndex: -1,
|
|
lastLineIndex: -1,
|
|
diffText: simpleDiff,
|
|
expected: "",
|
|
},
|
|
{
|
|
testName: "only context selected",
|
|
filename: "filename",
|
|
firstLineIndex: 5,
|
|
lastLineIndex: 5,
|
|
diffText: simpleDiff,
|
|
expected: "",
|
|
},
|
|
{
|
|
testName: "whole range selected",
|
|
filename: "filename",
|
|
firstLineIndex: 0,
|
|
lastLineIndex: 11,
|
|
diffText: simpleDiff,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,5 @@
|
|
apple
|
|
-orange
|
|
+grape
|
|
...
|
|
...
|
|
...
|
|
`,
|
|
},
|
|
{
|
|
testName: "only removal selected",
|
|
filename: "filename",
|
|
firstLineIndex: 6,
|
|
lastLineIndex: 6,
|
|
diffText: simpleDiff,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,4 @@
|
|
apple
|
|
-orange
|
|
...
|
|
...
|
|
...
|
|
`,
|
|
},
|
|
{
|
|
testName: "only addition selected",
|
|
filename: "filename",
|
|
firstLineIndex: 7,
|
|
lastLineIndex: 7,
|
|
diffText: simpleDiff,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,6 @@
|
|
apple
|
|
orange
|
|
+grape
|
|
...
|
|
...
|
|
...
|
|
`,
|
|
},
|
|
{
|
|
testName: "range that extends beyond diff bounds",
|
|
filename: "filename",
|
|
firstLineIndex: -100,
|
|
lastLineIndex: 100,
|
|
diffText: simpleDiff,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,5 @@
|
|
apple
|
|
-orange
|
|
+grape
|
|
...
|
|
...
|
|
...
|
|
`,
|
|
},
|
|
{
|
|
testName: "add newline to end of file",
|
|
filename: "filename",
|
|
firstLineIndex: -100,
|
|
lastLineIndex: 100,
|
|
diffText: addNewlineToEndOfFile,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -60,4 +60,4 @@ grape
|
|
...
|
|
...
|
|
...
|
|
-last line
|
|
\ No newline at end of file
|
|
+last line
|
|
`,
|
|
},
|
|
{
|
|
testName: "add newline to end of file, reversed",
|
|
filename: "filename",
|
|
firstLineIndex: -100,
|
|
lastLineIndex: 100,
|
|
reverse: true,
|
|
diffText: addNewlineToEndOfFile,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -60,4 +60,4 @@ grape
|
|
...
|
|
...
|
|
...
|
|
-last line
|
|
\ No newline at end of file
|
|
+last line
|
|
`,
|
|
},
|
|
{
|
|
testName: "remove newline from end of file",
|
|
filename: "filename",
|
|
firstLineIndex: -100,
|
|
lastLineIndex: 100,
|
|
diffText: removeNewlinefromEndOfFile,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -60,4 +60,4 @@ grape
|
|
...
|
|
...
|
|
...
|
|
-last line
|
|
+last line
|
|
\ No newline at end of file
|
|
`,
|
|
},
|
|
{
|
|
testName: "remove newline from end of file, reversed",
|
|
filename: "filename",
|
|
firstLineIndex: -100,
|
|
lastLineIndex: 100,
|
|
reverse: true,
|
|
diffText: removeNewlinefromEndOfFile,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -60,4 +60,4 @@ grape
|
|
...
|
|
...
|
|
...
|
|
-last line
|
|
+last line
|
|
\ No newline at end of file
|
|
`,
|
|
},
|
|
{
|
|
testName: "remove newline from end of file, removal only",
|
|
filename: "filename",
|
|
firstLineIndex: 8,
|
|
lastLineIndex: 8,
|
|
diffText: removeNewlinefromEndOfFile,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -60,4 +60,3 @@ grape
|
|
...
|
|
...
|
|
...
|
|
-last line
|
|
`,
|
|
},
|
|
{
|
|
testName: "remove newline from end of file, removal only, reversed",
|
|
filename: "filename",
|
|
firstLineIndex: 8,
|
|
lastLineIndex: 8,
|
|
reverse: true,
|
|
diffText: removeNewlinefromEndOfFile,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -60,5 +60,4 @@ grape
|
|
...
|
|
...
|
|
...
|
|
-last line
|
|
last line
|
|
\ No newline at end of file
|
|
`,
|
|
},
|
|
{
|
|
testName: "remove newline from end of file, addition only",
|
|
filename: "filename",
|
|
firstLineIndex: 9,
|
|
lastLineIndex: 9,
|
|
diffText: removeNewlinefromEndOfFile,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -60,4 +60,5 @@ grape
|
|
...
|
|
...
|
|
...
|
|
last line
|
|
+last line
|
|
\ No newline at end of file
|
|
`,
|
|
},
|
|
{
|
|
testName: "remove newline from end of file, addition only, reversed",
|
|
filename: "filename",
|
|
firstLineIndex: 9,
|
|
lastLineIndex: 9,
|
|
reverse: true,
|
|
diffText: removeNewlinefromEndOfFile,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -60,3 +60,4 @@ grape
|
|
...
|
|
...
|
|
...
|
|
+last line
|
|
\ No newline at end of file
|
|
`,
|
|
},
|
|
{
|
|
testName: "staging two whole hunks",
|
|
filename: "filename",
|
|
firstLineIndex: -100,
|
|
lastLineIndex: 100,
|
|
diffText: twoHunks,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,5 @@
|
|
apple
|
|
-grape
|
|
+orange
|
|
...
|
|
...
|
|
...
|
|
@@ -8,6 +8,8 @@ grape
|
|
...
|
|
...
|
|
...
|
|
+pear
|
|
+lemon
|
|
...
|
|
...
|
|
...
|
|
`,
|
|
},
|
|
{
|
|
testName: "staging part of both hunks",
|
|
filename: "filename",
|
|
firstLineIndex: 7,
|
|
lastLineIndex: 15,
|
|
diffText: twoHunks,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,6 @@
|
|
apple
|
|
grape
|
|
+orange
|
|
...
|
|
...
|
|
...
|
|
@@ -8,6 +9,7 @@ grape
|
|
...
|
|
...
|
|
...
|
|
+pear
|
|
...
|
|
...
|
|
...
|
|
`,
|
|
},
|
|
{
|
|
testName: "adding a new file",
|
|
filename: "newfile",
|
|
firstLineIndex: -100,
|
|
lastLineIndex: 100,
|
|
diffText: newFile,
|
|
expected: `--- a/newfile
|
|
+++ b/newfile
|
|
@@ -0,0 +1,3 @@
|
|
+apple
|
|
+orange
|
|
+grape
|
|
`,
|
|
},
|
|
{
|
|
testName: "adding part of a new file",
|
|
filename: "newfile",
|
|
firstLineIndex: 6,
|
|
lastLineIndex: 7,
|
|
diffText: newFile,
|
|
expected: `--- a/newfile
|
|
+++ b/newfile
|
|
@@ -0,0 +1,2 @@
|
|
+apple
|
|
+orange
|
|
`,
|
|
},
|
|
{
|
|
testName: "adding a new line to a previously empty file",
|
|
filename: "newfile",
|
|
firstLineIndex: -100,
|
|
lastLineIndex: 100,
|
|
diffText: addNewlineToPreviouslyEmptyFile,
|
|
expected: `--- a/newfile
|
|
+++ b/newfile
|
|
@@ -0,0 +1 @@
|
|
+new line
|
|
\ No newline at end of file
|
|
`,
|
|
},
|
|
{
|
|
testName: "adding a new line to a previously empty file, reversed",
|
|
filename: "newfile",
|
|
firstLineIndex: -100,
|
|
lastLineIndex: 100,
|
|
diffText: addNewlineToPreviouslyEmptyFile,
|
|
reverse: true,
|
|
expected: `--- a/newfile
|
|
+++ b/newfile
|
|
@@ -0,0 +1 @@
|
|
+new line
|
|
\ No newline at end of file
|
|
`,
|
|
},
|
|
{
|
|
testName: "adding part of a hunk",
|
|
filename: "filename",
|
|
firstLineIndex: 6,
|
|
lastLineIndex: 7,
|
|
reverse: false,
|
|
diffText: twoChangesInOneHunk,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,5 @@
|
|
apple
|
|
-grape
|
|
+kiwi
|
|
orange
|
|
pear
|
|
lemon
|
|
`,
|
|
},
|
|
{
|
|
testName: "adding part of a hunk, reverse",
|
|
filename: "filename",
|
|
firstLineIndex: 6,
|
|
lastLineIndex: 7,
|
|
reverse: true,
|
|
diffText: twoChangesInOneHunk,
|
|
expected: `--- a/filename
|
|
+++ b/filename
|
|
@@ -1,5 +1,5 @@
|
|
apple
|
|
-grape
|
|
+kiwi
|
|
orange
|
|
banana
|
|
lemon
|
|
`,
|
|
},
|
|
}
|
|
|
|
for _, s := range scenarios {
|
|
t.Run(s.testName, func(t *testing.T) {
|
|
lineIndices := ExpandRange(s.firstLineIndex, s.lastLineIndex)
|
|
|
|
result := Parse(s.diffText).
|
|
Transform(TransformOpts{
|
|
Reverse: s.reverse,
|
|
FileNameOverride: s.filename,
|
|
IncludedLineIndices: lineIndices,
|
|
}).
|
|
FormatPlain()
|
|
|
|
assert.Equal(t, s.expected, result)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestParseAndFormatPlain(t *testing.T) {
|
|
scenarios := []struct {
|
|
testName string
|
|
patchStr string
|
|
}{
|
|
{
|
|
testName: "simpleDiff",
|
|
patchStr: simpleDiff,
|
|
},
|
|
{
|
|
testName: "addNewlineToEndOfFile",
|
|
patchStr: addNewlineToEndOfFile,
|
|
},
|
|
{
|
|
testName: "removeNewlinefromEndOfFile",
|
|
patchStr: removeNewlinefromEndOfFile,
|
|
},
|
|
{
|
|
testName: "twoHunks",
|
|
patchStr: twoHunks,
|
|
},
|
|
{
|
|
testName: "twoChangesInOneHunk",
|
|
patchStr: twoChangesInOneHunk,
|
|
},
|
|
{
|
|
testName: "newFile",
|
|
patchStr: newFile,
|
|
},
|
|
{
|
|
testName: "addNewlineToPreviouslyEmptyFile",
|
|
patchStr: addNewlineToPreviouslyEmptyFile,
|
|
},
|
|
{
|
|
testName: "exampleHunk",
|
|
patchStr: exampleHunk,
|
|
},
|
|
}
|
|
|
|
for _, s := range scenarios {
|
|
t.Run(s.testName, func(t *testing.T) {
|
|
// here we parse the patch, then format it, and ensure the result
|
|
// matches the original patch. Note that unified diffs allow omitting
|
|
// the new length in a hunk header if the value is 1, and currently we always
|
|
// omit the new length in such cases.
|
|
patch := Parse(s.patchStr)
|
|
result := formatPlain(patch)
|
|
assert.Equal(t, s.patchStr, result)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestLineNumberOfLine(t *testing.T) {
|
|
type scenario struct {
|
|
testName string
|
|
patchStr string
|
|
indexes []int
|
|
expecteds []int
|
|
}
|
|
|
|
scenarios := []scenario{
|
|
{
|
|
testName: "twoHunks",
|
|
patchStr: twoHunks,
|
|
// this is really more of a characteristic test than anything.
|
|
indexes: []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 1000},
|
|
expecteds: []int{1, 1, 1, 1, 1, 1, 2, 2, 3, 4, 5, 8, 8, 9, 10, 11, 12, 13, 14, 15, 15, 15, 15, 15, 15},
|
|
},
|
|
{
|
|
testName: "twoHunksWithMoreAdditionsThanRemovals",
|
|
patchStr: twoHunksWithMoreAdditionsThanRemovals,
|
|
indexes: []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 1000},
|
|
expecteds: []int{1, 1, 1, 1, 1, 1, 2, 2, 3, 4, 5, 6, 9, 9, 10, 11, 12, 13, 14, 15, 16, 16, 16, 16, 16, 16},
|
|
},
|
|
}
|
|
|
|
for _, s := range scenarios {
|
|
t.Run(s.testName, func(t *testing.T) {
|
|
for i, idx := range s.indexes {
|
|
patch := Parse(s.patchStr)
|
|
result := patch.LineNumberOfLine(idx)
|
|
assert.Equal(t, s.expecteds[i], result)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestGetNextStageableLineIndex(t *testing.T) {
|
|
type scenario struct {
|
|
testName string
|
|
patchStr string
|
|
indexes []int
|
|
expecteds []int
|
|
}
|
|
|
|
scenarios := []scenario{
|
|
{
|
|
testName: "twoHunks",
|
|
patchStr: twoHunks,
|
|
indexes: []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 1000},
|
|
expecteds: []int{6, 6, 6, 6, 6, 6, 6, 7, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16},
|
|
},
|
|
}
|
|
|
|
for _, s := range scenarios {
|
|
t.Run(s.testName, func(t *testing.T) {
|
|
for i, idx := range s.indexes {
|
|
patch := Parse(s.patchStr)
|
|
result := patch.GetNextChangeIdx(idx)
|
|
assert.Equal(t, s.expecteds[i], result)
|
|
}
|
|
})
|
|
}
|
|
}
|