// 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::PathBuf; use test_case::test_case; use crate::common::CommandOutput;use crate::common::TestEnvironment;use crate::common::TestWorkDir; #[must_use]fn get_log_output(work_dir: &TestWorkDir) -> CommandOutput {    let template = r#"separate(" ", change_id.short(), empty, local_bookmarks, description)"#;    work_dir.run_jj(["log", "-T", template])} #[must_use]fn get_workspace_log_output(work_dir: &TestWorkDir) -> CommandOutput {    let template = r#"separate(" ", change_id.short(), working_copies, description)"#;    work_dir.run_jj(["log", "-T", template, "-r", "all()"])} #[must_use]fn get_recorded_dates(work_dir: &TestWorkDir, revset: &str) -> CommandOutput {    let template = r#"separate("\n", "Author date:  " ++ author.timestamp(), "Committer date: " ++ committer.timestamp())"#;    work_dir.run_jj(["log", "--no-graph", "-T", template, "-r", revset])} #[test]fn test_split_by_paths() {    let mut test_env = TestEnvironment::default();    let edit_script = test_env.set_up_fake_editor();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     work_dir.write_file("file1", "foo");    work_dir.write_file("file2", "foo");    work_dir.write_file("file3", "foo");     insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  qpvuntsmwlqt false    ◆  zzzzzzzzzzzz true    [EOF]    ");    insta::assert_snapshot!(get_recorded_dates(&work_dir, "@"), @r"    Author date:  2001-02-03 04:05:08.000 +07:00    Committer date: 2001-02-03 04:05:08.000 +07:00[EOF]    ");     std::fs::write(        &edit_script,        ["dump editor0", "next invocation\n", "dump editor1"].join("\0"),    )    .unwrap();    let output = work_dir.run_jj(["split", "file2"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    First part: qpvuntsm 65569ca7 (no description set)    Second part: zsuskuln 709756f0 (no description set)    Working copy  (@) now at: zsuskuln 709756f0 (no description set)    Parent commit (@-)      : qpvuntsm 65569ca7 (no description set)    [EOF]    ");    insta::assert_snapshot!(        std::fs::read_to_string(test_env.env_root().join("editor0")).unwrap(), @r#"    JJ: Enter a description for the first commit.      JJ: This commit contains the following changes:    JJ:     A file2    JJ:    JJ: Lines starting with "JJ:" (like this one) will be removed.    "#);    assert!(!test_env.env_root().join("editor1").exists());     insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  zsuskulnrvyr false    ○  qpvuntsmwlqt false    ◆  zzzzzzzzzzzz true    [EOF]    ");     // The author dates of the new commits should be inherited from the commit being    // split. The committer dates should be newer.    insta::assert_snapshot!(get_recorded_dates(&work_dir, "@"), @r"    Author date:  2001-02-03 04:05:08.000 +07:00    Committer date: 2001-02-03 04:05:10.000 +07:00[EOF]    ");    insta::assert_snapshot!(get_recorded_dates(&work_dir, "@-"), @r"    Author date:  2001-02-03 04:05:08.000 +07:00    Committer date: 2001-02-03 04:05:10.000 +07:00[EOF]    ");     let output = work_dir.run_jj(["diff", "-s", "-r", "@-"]);    insta::assert_snapshot!(output, @r"    A file2    [EOF]    ");    let output = work_dir.run_jj(["diff", "-s"]);    insta::assert_snapshot!(output, @r"    A file1    A file3    [EOF]    ");     // Insert an empty commit after @- with "split ."    std::fs::write(&edit_script, "").unwrap();    let output = work_dir.run_jj(["split", "-r", "@-", "."]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Warning: All changes have been selected, so the second commit will be empty    Rebased 1 descendant commits    First part: qpvuntsm 9da0eea0 (no description set)    Second part: znkkpsqq 5b5714a3 (empty) (no description set)    Working copy  (@) now at: zsuskuln 0c798ee7 (no description set)    Parent commit (@-)      : znkkpsqq 5b5714a3 (empty) (no description set)    [EOF]    ");     insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  zsuskulnrvyr false    ○  znkkpsqqskkl true    ○  qpvuntsmwlqt false    ◆  zzzzzzzzzzzz true    [EOF]    ");     let output = work_dir.run_jj(["diff", "-s", "-r", "@--"]);    insta::assert_snapshot!(output, @r"    A file2    [EOF]    ");     // Remove newly created empty commit    work_dir.run_jj(["abandon", "@-"]).success();     // Insert an empty commit before @- with "split nonexistent"    std::fs::write(&edit_script, "").unwrap();    let output = work_dir.run_jj(["split", "-r", "@-", "nonexistent"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Warning: No changes have been selected, so the first commit will be empty    Rebased 1 descendant commits    First part: qpvuntsm bd42f95a (empty) (no description set)    Second part: lylxulpl ed55c86b (no description set)    Working copy  (@) now at: zsuskuln 1e1ed741 (no description set)    Parent commit (@-)      : lylxulpl ed55c86b (no description set)    [EOF]    ");     insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  zsuskulnrvyr false    ○  lylxulplsnyw false    ○  qpvuntsmwlqt true    ◆  zzzzzzzzzzzz true    [EOF]    ");     let output = work_dir.run_jj(["diff", "-s", "-r", "@-"]);    insta::assert_snapshot!(output, @r"    A file2    [EOF]    ");} #[test]fn test_split_with_non_empty_description() {    let mut test_env = TestEnvironment::default();    let edit_script = test_env.set_up_fake_editor();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    test_env.add_config(r#"ui.default-description = "\n\nTESTED=TODO""#);    let work_dir = test_env.work_dir("repo");     work_dir.write_file("file1", "foo\n");    work_dir.write_file("file2", "bar\n");    work_dir.run_jj(["describe", "-m", "test"]).success();    std::fs::write(        edit_script,        [            "dump editor1",            "write\npart 1",            "next invocation\n",            "dump editor2",            "write\npart 2",        ]        .join("\0"),    )    .unwrap();    let output = work_dir.run_jj(["split", "file1"]);    insta::assert_snapshot!(output, @r#"    ------- stderr -------    Warning: Deprecated config: ui.default-description is updated to template-aliases.default_commit_description = '"\n\nTESTED=TODO\n"'    First part: qpvuntsm 231a3c00 part 1    Second part: kkmpptxz e96291aa part 2    Working copy  (@) now at: kkmpptxz e96291aa part 2    Parent commit (@-)      : qpvuntsm 231a3c00 part 1    [EOF]    "#);     insta::assert_snapshot!(        std::fs::read_to_string(test_env.env_root().join("editor1")).unwrap(), @r#"    JJ: Enter a description for the first commit.    test     JJ: This commit contains the following changes:    JJ:     A file1    JJ:    JJ: Lines starting with "JJ:" (like this one) will be removed.    "#);    insta::assert_snapshot!(        std::fs::read_to_string(test_env.env_root().join("editor2")).unwrap(), @r#"    JJ: Enter a description for the second commit.    test     JJ: This commit contains the following changes:    JJ:     A file2    JJ:    JJ: Lines starting with "JJ:" (like this one) will be removed.    "#);    insta::assert_snapshot!(get_log_output(&work_dir), @r#"    @  kkmpptxzrspx false part 2    ○  qpvuntsmwlqt false part 1    ◆  zzzzzzzzzzzz true    [EOF]    ------- stderr -------    Warning: Deprecated config: ui.default-description is updated to template-aliases.default_commit_description = '"\n\nTESTED=TODO\n"'    [EOF]    "#);} #[test]fn test_split_with_default_description() {    let mut test_env = TestEnvironment::default();    let edit_script = test_env.set_up_fake_editor();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    test_env.add_config(r#"ui.default-description = "\n\nTESTED=TODO""#);    let work_dir = test_env.work_dir("repo");     work_dir.write_file("file1", "foo\n");    work_dir.write_file("file2", "bar\n");     std::fs::write(        edit_script,        ["dump editor1", "next invocation\n", "dump editor2"].join("\0"),    )    .unwrap();    let output = work_dir.run_jj(["split", "file1"]);    insta::assert_snapshot!(output, @r#"    ------- stderr -------    Warning: Deprecated config: ui.default-description is updated to template-aliases.default_commit_description = '"\n\nTESTED=TODO\n"'    First part: qpvuntsm 02ee5d60 TESTED=TODO    Second part: rlvkpnrz 33cd046b (no description set)    Working copy  (@) now at: rlvkpnrz 33cd046b (no description set)    Parent commit (@-)      : qpvuntsm 02ee5d60 TESTED=TODO    [EOF]    "#);     // Since the commit being split has no description, the user will only be    // prompted to add a description to the first commit, which will use the    // default value we set. The second commit will inherit the empty    // description from the commit being split.    insta::assert_snapshot!(        std::fs::read_to_string(test_env.env_root().join("editor1")).unwrap(), @r#"    JJ: Enter a description for the first commit.      TESTED=TODO     JJ: This commit contains the following changes:    JJ:     A file1    JJ:    JJ: Lines starting with "JJ:" (like this one) will be removed.    "#);    assert!(!test_env.env_root().join("editor2").exists());    insta::assert_snapshot!(get_log_output(&work_dir), @r#"    @  rlvkpnrzqnoo false    ○  qpvuntsmwlqt false TESTED=TODO    ◆  zzzzzzzzzzzz true    [EOF]    ------- stderr -------    Warning: Deprecated config: ui.default-description is updated to template-aliases.default_commit_description = '"\n\nTESTED=TODO\n"'    [EOF]    "#);} #[test]fn test_split_with_descendants() {    // Configure the environment and make the initial commits.    let mut test_env = TestEnvironment::default();    let edit_script = test_env.set_up_fake_editor();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     // First commit. This is the one we will split later.    work_dir.write_file("file1", "foo\n");    work_dir.write_file("file2", "bar\n");    work_dir        .run_jj(["commit", "-m", "Add file1 & file2"])        .success();    // Second commit.    work_dir.write_file("file3", "baz\n");    work_dir.run_jj(["commit", "-m", "Add file3"]).success();    // Third commit.    work_dir.write_file("file4", "foobarbaz\n");    work_dir.run_jj(["describe", "-m", "Add file4"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r###"    @  kkmpptxzrspx false Add file4    ○  rlvkpnrzqnoo false Add file3    ○  qpvuntsmwlqt false Add file1 & file2    ◆  zzzzzzzzzzzz true    [EOF]    "###);     // Set up the editor and do the split.    std::fs::write(        edit_script,        [            "dump editor1",            "write\nAdd file1",            "next invocation\n",            "dump editor2",            "write\nAdd file2",        ]        .join("\0"),    )    .unwrap();    let output = work_dir.run_jj(["split", "file1", "-r", "qpvu"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Rebased 2 descendant commits    First part: qpvuntsm 34dd141b Add file1    Second part: royxmykx 465e03d0 Add file2    Working copy  (@) now at: kkmpptxz 2d5d641f Add file4    Parent commit (@-)      : rlvkpnrz b3bd9eb7 Add file3    [EOF]    ");    insta::assert_snapshot!(get_log_output(&work_dir), @r###"    @  kkmpptxzrspx false Add file4    ○  rlvkpnrzqnoo false Add file3    ○  royxmykxtrkr false Add file2    ○  qpvuntsmwlqt false Add file1    ◆  zzzzzzzzzzzz true    [EOF]    "###);     // The commit we're splitting has a description, so the user will be    // prompted to enter a description for each of the commits.    insta::assert_snapshot!(        std::fs::read_to_string(test_env.env_root().join("editor1")).unwrap(), @r#"    JJ: Enter a description for the first commit.    Add file1 & file2     JJ: This commit contains the following changes:    JJ:     A file1    JJ:    JJ: Lines starting with "JJ:" (like this one) will be removed.    "#);    insta::assert_snapshot!(        std::fs::read_to_string(test_env.env_root().join("editor2")).unwrap(), @r#"    JJ: Enter a description for the second commit.    Add file1 & file2     JJ: This commit contains the following changes:    JJ:     A file2    JJ:    JJ: Lines starting with "JJ:" (like this one) will be removed.    "#);     // Check the evolog for the first commit. It shows four entries:    // - The initial empty commit.    // - The rewritten commit from the snapshot after the files were added.    // - The rewritten commit once the description is added during `jj commit`.    // - The rewritten commit after the split.    let evolog_1 = work_dir.run_jj(["evolog", "-r", "qpvun"]);    insta::assert_snapshot!(evolog_1, @r###"    ○  qpvuntsm test.user@example.com 2001-02-03 08:05:12 34dd141b    │  Add file1    ○  qpvuntsm hidden test.user@example.com 2001-02-03 08:05:08 764d46f1    │  Add file1 & file2    ○  qpvuntsm hidden test.user@example.com 2001-02-03 08:05:08 44af2155    │  (no description set)    ○  qpvuntsm hidden test.user@example.com 2001-02-03 08:05:07 230dd059       (empty) (no description set)    [EOF]    "###);     // The evolog for the second commit is the same, except that the change id    // changes after the split.    let evolog_2 = work_dir.run_jj(["evolog", "-r", "royxm"]);    insta::assert_snapshot!(evolog_2, @r###"    ○  royxmykx test.user@example.com 2001-02-03 08:05:12 465e03d0    │  Add file2    ○  qpvuntsm hidden test.user@example.com 2001-02-03 08:05:08 764d46f1    │  Add file1 & file2    ○  qpvuntsm hidden test.user@example.com 2001-02-03 08:05:08 44af2155    │  (no description set)    ○  qpvuntsm hidden test.user@example.com 2001-02-03 08:05:07 230dd059       (empty) (no description set)    [EOF]    "###);} // This test makes sure that the children of the commit being split retain any// other parents which weren't involved in the split.#[test]fn test_split_with_merge_child() {    let mut test_env = TestEnvironment::default();    let edit_script = test_env.set_up_fake_editor();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");    work_dir.run_jj(["describe", "-m=1"]).success();    work_dir.run_jj(["new", "root()", "-m=a"]).success();    work_dir.write_file("file1", "foo\n");    work_dir.write_file("file2", "bar\n");    work_dir        .run_jj(["new", "description(1)", "description(a)", "-m=2"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @    zsuskulnrvyr true 2    ├─╮    │ ○  kkmpptxzrspx false a    ○ │  qpvuntsmwlqt true 1    ├─╯    ◆  zzzzzzzzzzzz true    [EOF]    ");     // Set up the editor and do the split.    std::fs::write(        edit_script,        ["write\nAdd file1", "next invocation\n", "write\nAdd file2"].join("\0"),    )    .unwrap();    let output = work_dir.run_jj(["split", "-r", "description(a)", "file1"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Rebased 1 descendant commits    First part: kkmpptxz e8006b47 Add file1    Second part: royxmykx 5e1b793d Add file2    Working copy  (@) now at: zsuskuln 696935af (empty) 2    Parent commit (@-)      : qpvuntsm 8b64ddff (empty) 1    Parent commit (@-)      : royxmykx 5e1b793d Add file2    [EOF]    ");    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @    zsuskulnrvyr true 2    ├─╮    │ ○  royxmykxtrkr false Add file2    │ ○  kkmpptxzrspx false Add file1    ○ │  qpvuntsmwlqt true 1    ├─╯    ◆  zzzzzzzzzzzz true    [EOF]    ");} #[test]// Split a commit with no descendants into siblings. Also tests that the default// description is set correctly on the first commit.fn test_split_parallel_no_descendants() {    let mut test_env = TestEnvironment::default();    let edit_script = test_env.set_up_fake_editor();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    test_env.add_config(r#"ui.default-description = "\n\nTESTED=TODO""#);    let work_dir = test_env.work_dir("repo");     work_dir.write_file("file1", "foo\n");    work_dir.write_file("file2", "bar\n");     insta::assert_snapshot!(get_log_output(&work_dir), @r#"    @  qpvuntsmwlqt false    ◆  zzzzzzzzzzzz true    [EOF]    ------- stderr -------    Warning: Deprecated config: ui.default-description is updated to template-aliases.default_commit_description = '"\n\nTESTED=TODO\n"'    [EOF]    "#);     std::fs::write(        edit_script,        ["dump editor1", "next invocation\n", "dump editor2"].join("\0"),    )    .unwrap();    let output = work_dir.run_jj(["split", "--parallel", "file1"]);    insta::assert_snapshot!(output, @r#"    ------- stderr -------    Warning: Deprecated config: ui.default-description is updated to template-aliases.default_commit_description = '"\n\nTESTED=TODO\n"'    First part: qpvuntsm 48018df6 TESTED=TODO

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