jj/cli/tests/test_unsquash_command.rs
2024-03-06 10:19:46 -08:00

321 lines
12 KiB
Rust

// 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 std::path::Path;
use crate::common::TestEnvironment;
#[test]
fn test_unsquash() {
let test_env = TestEnvironment::default();
test_env.jj_cmd_ok(test_env.env_root(), &["init", "repo", "--git"]);
let repo_path = test_env.env_root().join("repo");
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "a"]);
std::fs::write(repo_path.join("file1"), "a\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "b"]);
std::fs::write(repo_path.join("file1"), "b\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "c"]);
std::fs::write(repo_path.join("file1"), "c\n").unwrap();
// Test the setup
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 90fe0a96fc90 c
◉ fa5efbdf533c b
◉ 90aeefd03044 a
◉ 000000000000
"###);
// Unsquashes into the working copy from its parent by default
let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Working copy now at: mzvwutvl 1b10d78f c | (no description set)
Parent commit : qpvuntsm 90aeefd0 a b | (no description set)
"###);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 1b10d78f6136 c
◉ 90aeefd03044 a b
◉ 000000000000
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file1"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
// Can unsquash into a given commit from its parent
test_env.jj_cmd_ok(&repo_path, &["undo"]);
let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["unsquash", "-r", "b"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Rebased 1 descendant commits
Working copy now at: mzvwutvl 45b8b3dd c | (no description set)
Parent commit : kkmpptxz 9146bcc8 b | (no description set)
"###);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 45b8b3ddc25a c
◉ 9146bcc8d996 b
◉ 000000000000 a
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file1", "-r", "b"]);
insta::assert_snapshot!(stdout, @r###"
b
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file1"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
// Cannot unsquash into a merge commit (because it's unclear which parent it
// should come from)
test_env.jj_cmd_ok(&repo_path, &["undo"]);
test_env.jj_cmd_ok(&repo_path, &["edit", "b"]);
test_env.jj_cmd_ok(&repo_path, &["new"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "d"]);
std::fs::write(repo_path.join("file2"), "d\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new", "-m", "merge", "c", "d"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "e"]);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 1f8f152ff48e e
├─╮
│ ◉ 5658521e0f8b d
◉ │ 90fe0a96fc90 c
├─╯
◉ fa5efbdf533c b
◉ 90aeefd03044 a
◉ 000000000000
"###);
let stderr = test_env.jj_cmd_failure(&repo_path, &["unsquash"]);
insta::assert_snapshot!(stderr, @r###"
Error: Cannot unsquash merge commits
"###);
// Can unsquash from a merge commit
test_env.jj_cmd_ok(&repo_path, &["new", "e"]);
std::fs::write(repo_path.join("file1"), "e\n").unwrap();
let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Working copy now at: pzsxstzt 3217340c merge
Parent commit : mzvwutvl 90fe0a96 c e?? | (no description set)
Parent commit : xznxytkn 5658521e d e?? | (no description set)
"###);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 3217340cb761
├─╮
│ ◉ 5658521e0f8b d e??
◉ │ 90fe0a96fc90 c e??
├─╯
◉ fa5efbdf533c b
◉ 90aeefd03044 a
◉ 000000000000
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file1"]);
insta::assert_snapshot!(stdout, @r###"
e
"###);
}
#[test]
fn test_unsquash_partial() {
let mut test_env = TestEnvironment::default();
test_env.jj_cmd_ok(test_env.env_root(), &["init", "repo", "--git"]);
let repo_path = test_env.env_root().join("repo");
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "a"]);
std::fs::write(repo_path.join("file1"), "a\n").unwrap();
std::fs::write(repo_path.join("file2"), "a\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "b"]);
std::fs::write(repo_path.join("file1"), "b\n").unwrap();
std::fs::write(repo_path.join("file2"), "b\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "c"]);
std::fs::write(repo_path.join("file1"), "c\n").unwrap();
std::fs::write(repo_path.join("file2"), "c\n").unwrap();
// Test the setup
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ d989314f3df0 c
◉ 2a2d19a3283f b
◉ 47a1e795d146 a
◉ 000000000000
"###);
// If we don't make any changes in the diff-editor, the whole change is moved
// from the parent
let edit_script = test_env.set_up_fake_diff_editor();
let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["unsquash", "-r", "b", "-i"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Rebased 1 descendant commits
Working copy now at: mzvwutvl 37c961d0 c | (no description set)
Parent commit : kkmpptxz 000af220 b | (no description set)
"###);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 37c961d0d1e2 c
◉ 000af22057b9 b
◉ ee67504598b6 a
◉ 000000000000
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file1", "-r", "a"]);
insta::assert_snapshot!(stdout, @r###"
a
"###);
// Can unsquash only some changes in interactive mode
test_env.jj_cmd_ok(&repo_path, &["undo"]);
std::fs::write(edit_script, "reset file1").unwrap();
let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["unsquash", "-i"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Working copy now at: mzvwutvl a8e8fded c | (no description set)
Parent commit : kkmpptxz 46cc0667 b | (no description set)
"###);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ a8e8fded1021 c
◉ 46cc06672a99 b
◉ 47a1e795d146 a
◉ 000000000000
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file1", "-r", "b"]);
insta::assert_snapshot!(stdout, @r###"
a
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file2", "-r", "b"]);
insta::assert_snapshot!(stdout, @r###"
b
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file1", "-r", "c"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file2", "-r", "c"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
// Try again with --tool=<name>, which implies --interactive
test_env.jj_cmd_ok(&repo_path, &["undo"]);
let (stdout, stderr) = test_env.jj_cmd_ok(
&repo_path,
&[
"unsquash",
"--config-toml=ui.diff-editor='false'",
"--tool=fake-diff-editor",
],
);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Working copy now at: mzvwutvl 1c82d27c c | (no description set)
Parent commit : kkmpptxz b9d23fd8 b | (no description set)
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file1", "-r", "b"]);
insta::assert_snapshot!(stdout, @r###"
a
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file2", "-r", "b"]);
insta::assert_snapshot!(stdout, @r###"
b
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file1", "-r", "c"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["print", "file2", "-r", "c"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
}
fn get_log_output(test_env: &TestEnvironment, repo_path: &Path) -> String {
let template = r#"commit_id.short() ++ " " ++ branches"#;
test_env.jj_cmd_success(repo_path, &["log", "-T", template])
}
#[test]
fn test_unsquash_description() {
let mut test_env = TestEnvironment::default();
test_env.jj_cmd_ok(test_env.env_root(), &["init", "repo", "--git"]);
let repo_path = test_env.env_root().join("repo");
let edit_script = test_env.set_up_fake_editor();
std::fs::write(&edit_script, r#"fail"#).unwrap();
// If both descriptions are empty, the resulting description is empty
std::fs::write(repo_path.join("file1"), "a\n").unwrap();
std::fs::write(repo_path.join("file2"), "a\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new"]);
std::fs::write(repo_path.join("file1"), "b\n").unwrap();
std::fs::write(repo_path.join("file2"), "b\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@"), @"");
// If the destination's description is empty and the source's description is
// non-empty, the resulting description is from the source
test_env.jj_cmd_ok(&repo_path, &["undo"]);
test_env.jj_cmd_ok(&repo_path, &["describe", "@-", "-m", "source"]);
test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@"), @r###"
source
"###);
// If the destination description is non-empty and the source's description is
// empty, the resulting description is from the destination
test_env.jj_cmd_ok(&repo_path, &["op", "restore", "@--"]);
test_env.jj_cmd_ok(&repo_path, &["describe", "-m", "destination"]);
test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@"), @r###"
destination
"###);
// If both descriptions were non-empty, we get asked for a combined description
test_env.jj_cmd_ok(&repo_path, &["undo"]);
test_env.jj_cmd_ok(&repo_path, &["describe", "@-", "-m", "source"]);
std::fs::write(&edit_script, "dump editor0").unwrap();
test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@"), @r###"
destination
source
"###);
insta::assert_snapshot!(
std::fs::read_to_string(test_env.env_root().join("editor0")).unwrap(), @r###"
JJ: Enter a description for the combined commit.
JJ: Description from the destination commit:
destination
JJ: Description from the source commit:
source
JJ: Lines starting with "JJ: " (like this one) will be removed.
"###);
// If the source's *content* doesn't become empty, then the source remains and
// both descriptions are unchanged
test_env.jj_cmd_ok(&repo_path, &["undo"]);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@-"), @r###"
source
"###);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@"), @r###"
destination
"###);
}
fn get_description(test_env: &TestEnvironment, repo_path: &Path, rev: &str) -> String {
test_env.jj_cmd_success(
repo_path,
&["log", "--no-graph", "-T", "description", "-r", rev],
)
}