Files
jj-vcs-jj/cli/tests/test_interdiff_command.rs
Jakub Stasiak 92b7af489d diff: avoid word inlining without color
Color-words diffs use formatter labels to distinguish removed and
added tokens. When color is disabled, those labels are invisible,
so inline word changes can collapse into unreadable text when
stdout is not a TTY.

Render color-words hunks as separate before and after lines
whenever the formatter cannot emit color. This keeps the default
diff format stable while making piped or redirected output
readable.

Color-words tests that rely on inline display force color output
because inlining is only triggered when color is available, ANSI
sequences are stripped before snapshotting to keep the snapshots
readable.

This does not make redirected diffs into git-format patches.
Users still need --git for patch exchange or tools that require
unified diff input.

Fixes #5894.
Related to #6972.
2026-06-01 06:15:18 +00:00

231 lines
6.8 KiB
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// Copyright 2022 The Jujutsu Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use crate::common::TestEnvironment;
#[test]
fn test_interdiff_basic() {
let test_env = TestEnvironment::default();
test_env.run_jj_in(".", ["git", "init", "repo"]).success();
let work_dir = test_env.work_dir("repo");
work_dir.write_file("file1", "foo\n");
work_dir.run_jj(["new", "-madd file2 left"]).success();
work_dir.write_file("file2", "foo\n");
work_dir
.run_jj(["bookmark", "create", "-r@", "left"])
.success();
work_dir.run_jj(["new", "root()"]).success();
work_dir.write_file("file3", "foo\n");
work_dir.run_jj(["new", "-madd file2 right"]).success();
work_dir.write_file("file2", "foo\nbar\n");
work_dir
.run_jj(["bookmark", "create", "-r@", "right"])
.success();
let setup_opid = work_dir.current_operation_id();
// implicit --to
let output = work_dir.run_jj(["interdiff", "--from", "left"]);
insta::assert_snapshot!(output, @"
Modified commit description:
1 : add file2 left
1: add file2 right
Modified regular file file2:
1 1: foo
2: bar
[EOF]
");
// explicit --to
work_dir.run_jj(["new", "@-"]).success();
let output = work_dir.run_jj(["interdiff", "--from", "left", "--to", "right"]);
insta::assert_snapshot!(output, @"
Modified commit description:
1 : add file2 left
1: add file2 right
Modified regular file file2:
1 1: foo
2: bar
[EOF]
");
work_dir.run_jj(["op", "restore", &setup_opid]).success();
// formats specifiers
let output = work_dir.run_jj(["interdiff", "--from", "left", "--to", "right", "-s"]);
insta::assert_snapshot!(output, @"
M file2
[EOF]
");
let output = work_dir.run_jj(["interdiff", "--from", "left", "--to", "right", "--git"]);
insta::assert_snapshot!(output, @"
diff --git a/JJ-COMMIT-DESCRIPTION b/JJ-COMMIT-DESCRIPTION
--- JJ-COMMIT-DESCRIPTION
+++ JJ-COMMIT-DESCRIPTION
@@ -1,1 +1,1 @@
-add file2 left
+add file2 right
diff --git a/file2 b/file2
index 257cc5642c..3bd1f0e297 100644
--- a/file2
+++ b/file2
@@ -1,1 +1,2 @@
foo
+bar
[EOF]
");
}
#[test]
fn test_interdiff_paths() {
let test_env = TestEnvironment::default();
test_env.run_jj_in(".", ["git", "init", "repo"]).success();
let work_dir = test_env.work_dir("repo");
work_dir.write_file("file1", "foo\n");
work_dir.write_file("file2", "foo\n");
work_dir.run_jj(["new"]).success();
work_dir.write_file("file1", "bar\n");
work_dir.write_file("file2", "bar\n");
work_dir
.run_jj(["bookmark", "create", "-r@", "left"])
.success();
work_dir.run_jj(["new", "root()"]).success();
work_dir.write_file("file1", "foo\n");
work_dir.write_file("file2", "foo\n");
work_dir.run_jj(["new"]).success();
work_dir.write_file("file1", "baz\n");
work_dir.write_file("file2", "baz\n");
work_dir
.run_jj(["bookmark", "create", "-r@", "right"])
.success();
let output = work_dir.run_jj(["interdiff", "--from", "left", "--to", "right", "file1"]);
insta::assert_snapshot!(output, @"
Modified regular file file1:
1 : bar
1: baz
[EOF]
");
let output = work_dir.run_jj([
"interdiff",
"--from",
"left",
"--to",
"right",
"file1",
"file2",
"nonexistent",
]);
insta::assert_snapshot!(output, @"
Modified regular file file1:
1 : bar
1: baz
Modified regular file file2:
1 : bar
1: baz
[EOF]
------- stderr -------
Warning: No matching entries for paths: nonexistent
[EOF]
");
// Running interdiff on commits with deleted files should not show a warning.
work_dir.run_jj(["edit", "right"]).success();
work_dir.remove_file("file1");
work_dir.run_jj(["new"]).success();
let output = work_dir.run_jj([
"interdiff",
"--from",
"left",
"--to",
"right",
"file1",
"file2",
]);
insta::assert_snapshot!(output, @"
Removed regular file file1:
1 : bar
Modified regular file file2:
1 : bar
1: baz
[EOF]
");
}
#[test]
fn test_interdiff_conflicting() {
let test_env = TestEnvironment::default();
test_env.run_jj_in(".", ["git", "init", "repo"]).success();
let work_dir = test_env.work_dir("repo");
work_dir.write_file("file", "foo\n");
work_dir.run_jj(["new"]).success();
work_dir.write_file("file", "bar\n");
work_dir
.run_jj(["bookmark", "create", "-r@", "left"])
.success();
work_dir.run_jj(["new", "root()"]).success();
work_dir.write_file("file", "abc\n");
work_dir.run_jj(["new"]).success();
work_dir.write_file("file", "def\n");
work_dir
.run_jj(["bookmark", "create", "-r@", "right"])
.success();
let output = work_dir.run_jj(["interdiff", "--from", "left", "--to", "right", "--git"]);
insta::assert_snapshot!(output, @r"
diff --git a/file b/file
index 0000000000..24c5735c3e 100644
--- a/file
+++ b/file
@@ -1,8 +1,1 @@
-<<<<<<< conflict 1 of 1
-%%%%%%% diff from: qpvuntsm d0c049cd (original parents)
-\\\\\\\ to: zsuskuln 0b2c304e (new parents)
--foo
-+abc
-+++++++ rlvkpnrz b23f92c3 (original revision)
-bar
->>>>>>> conflict 1 of 1 ends
+def
[EOF]
");
let output = work_dir.run_jj([
"interdiff",
"--config=diff.color-words.conflict=pair",
"--color=always",
"--from=left",
"--to=right",
]);
insta::assert_snapshot!(output, @"
Resolved conflict in file:
<<<<<<< Resolved conflict
+++++++ left side #1 to right side #1
 1  1: abcdef
------- left base #1 to right side #1
 1  1: foodef
+++++++ left side #2 to right side #1
 1  1: bardef
>>>>>>> Conflict ends
[EOF]
");
}