// Copyright 2024 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::CommandOutput;use crate::common::TestEnvironment;use crate::common::TestWorkDir; #[test]fn test_parallelize_no_descendants() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     for n in 1..6 {        work_dir.run_jj(["commit", &format!("-m{n}")]).success();    }    work_dir.run_jj(["describe", "-m=6"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  02b7709cc4e9 6 parents: 5    ○  1b2f08d76b66 5 parents: 4    ○  e5c4cf44e237 4 parents: 3    ○  4cd999dfaac0 3 parents: 2    ○  d3902619fade 2 parents: 1    ○  8b64ddff700d 1 parents:    ◆  000000000000 parents:    [EOF]    ");     work_dir        .run_jj(["parallelize", "description(1)::"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  4850b4629edb 6 parents:    │ ○  87627fbb7d29 5 parents:    ├─╯    │ ○  5b9815e28fae 4 parents:    ├─╯    │ ○  bb1bb465ccc2 3 parents:    ├─╯    │ ○  337eca1ef3a8 2 parents:    ├─╯    │ ○  8b64ddff700d 1 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");} // Only the head commit has descendants.#[test]fn test_parallelize_with_descendants_simple() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     for n in 1..6 {        work_dir.run_jj(["commit", &format!("-m{n}")]).success();    }    work_dir.run_jj(["describe", "-m=6"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  02b7709cc4e9 6 parents: 5    ○  1b2f08d76b66 5 parents: 4    ○  e5c4cf44e237 4 parents: 3    ○  4cd999dfaac0 3 parents: 2    ○  d3902619fade 2 parents: 1    ○  8b64ddff700d 1 parents:    ◆  000000000000 parents:    [EOF]    ");     work_dir        .run_jj(["parallelize", "description(1)::description(4)"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  9bc057f8b6e3 6 parents: 5    ○        9e36a8afe793 5 parents: 1 2 3 4    ├─┬─┬─╮    │ │ │ ○  5b9815e28fae 4 parents:    │ │ ○ │  bb1bb465ccc2 3 parents:    │ │ ├─╯    │ ○ │  337eca1ef3a8 2 parents:    │ ├─╯    ○ │  8b64ddff700d 1 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");} // One of the commits being parallelized has a child that isn't being// parallelized. That child will become a merge of any ancestors which are being// parallelized.#[test]fn test_parallelize_where_interior_has_non_target_children() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     for n in 1..6 {        work_dir.run_jj(["commit", &format!("-m{n}")]).success();    }    work_dir        .run_jj(["new", "description(2)", "-m=2c"])        .success();    work_dir.run_jj(["new", "description(5)", "-m=6"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  2508ea92308a 6 parents: 5    ○  1b2f08d76b66 5 parents: 4    ○  e5c4cf44e237 4 parents: 3    ○  4cd999dfaac0 3 parents: 2    │ ○  3e7571e62c87 2c parents: 2    ├─╯    ○  d3902619fade 2 parents: 1    ○  8b64ddff700d 1 parents:    ◆  000000000000 parents:    [EOF]    ");     work_dir        .run_jj(["parallelize", "description(1)::description(4)"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  c9525dff9d03 6 parents: 5    ○        b3ad09518546 5 parents: 1 2 3 4    ├─┬─┬─╮    │ │ │ ○  3b125ed6a683 4 parents:    │ │ ○ │  1ed8c0c5be30 3 parents:    │ │ ├─╯    │ │ │ ○  c01d8e85ea96 2c parents: 1 2    ╭─┬───╯    │ ○ │  7efea6c89b60 2 parents:    │ ├─╯    ○ │  8b64ddff700d 1 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");} #[test]fn test_parallelize_where_root_has_non_target_children() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     for n in 1..4 {        work_dir.run_jj(["commit", &format!("-m{n}")]).success();    }    work_dir        .run_jj(["new", "description(1)", "-m=1c"])        .success();    work_dir.run_jj(["new", "description(3)", "-m=4"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  9132691e6256 4 parents: 3    ○  4cd999dfaac0 3 parents: 2    ○  d3902619fade 2 parents: 1    │ ○  6c64110df0a5 1c parents: 1    ├─╯    ○  8b64ddff700d 1 parents:    ◆  000000000000 parents:    [EOF]    ");    work_dir        .run_jj(["parallelize", "description(1)::description(3)"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @      3397916989e7 4 parents: 1 2 3    ├─┬─╮    │ │ ○  1f768c1bc591 3 parents:    │ ○ │  12ef12b4640e 2 parents:    │ ├─╯    │ │ ○  6c64110df0a5 1c parents: 1    ├───╯    ○ │  8b64ddff700d 1 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");} // One of the commits being parallelized has a child that is a merge commit.#[test]fn test_parallelize_with_merge_commit_child() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     work_dir.run_jj(["commit", "-m", "1"]).success();    for n in 2..4 {        work_dir.run_jj(["commit", "-m", &n.to_string()]).success();    }    work_dir.run_jj(["new", "root()", "-m", "a"]).success();    work_dir        .run_jj(["new", "description(2)", "description(a)", "-m", "2a-c"])        .success();    work_dir        .run_jj(["new", "description(3)", "-m", "4"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  99ffaf5b3984 4 parents: 3    ○  4cd999dfaac0 3 parents: 2    │ ○  4313cc3b476f 2a-c parents: 2 a    ╭─┤    │ ○  1eb902150bb9 a parents:    ○ │  d3902619fade 2 parents: 1    ○ │  8b64ddff700d 1 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");     // After this finishes, child-2a will have three parents: "1", "2", and "a".    work_dir        .run_jj(["parallelize", "description(1)::description(3)"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @      3ee9279847a6 4 parents: 1 2 3    ├─┬─╮    │ │ ○  bb1bb465ccc2 3 parents:    │ │ │ ○  c70ee196514b 2a-c parents: 1 2 a    ╭─┬───┤    │ │ │ ○  1eb902150bb9 a parents:    │ │ ├─╯    │ ○ │  337eca1ef3a8 2 parents:    │ ├─╯    ○ │  8b64ddff700d 1 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");} #[test]fn test_parallelize_disconnected_target_commits() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     for n in 1..3 {        work_dir.run_jj(["commit", &format!("-m{n}")]).success();    }    work_dir.run_jj(["describe", "-m=3"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  4cd999dfaac0 3 parents: 2    ○  d3902619fade 2 parents: 1    ○  8b64ddff700d 1 parents:    ◆  000000000000 parents:    [EOF]    ");     let output = work_dir.run_jj(["parallelize", "description(1)", "description(3)"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Nothing changed.    [EOF]    ");    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  4cd999dfaac0 3 parents: 2    ○  d3902619fade 2 parents: 1    ○  8b64ddff700d 1 parents:    ◆  000000000000 parents:    [EOF]    ");} #[test]fn test_parallelize_head_is_a_merge() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");    work_dir.run_jj(["commit", "-m=0"]).success();    work_dir.run_jj(["commit", "-m=1"]).success();    work_dir.run_jj(["commit", "-m=2"]).success();    work_dir.run_jj(["new", "root()"]).success();    work_dir.run_jj(["commit", "-m=a"]).success();    work_dir.run_jj(["commit", "-m=b"]).success();    work_dir        .run_jj(["new", "description(2)", "description(b)", "-m=merged-head"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @    1fb53c45237e merged-head parents: 2 b    ├─╮    │ ○  a7bf5001cfd8 b parents: a    │ ○  6ca0450a05f5 a parents:    ○ │  1f81bd465ed0 2 parents: 1    ○ │  0c058af014a6 1 parents: 0    ○ │  745bea8029c1 0 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");     work_dir        .run_jj(["parallelize", "description(1)::"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @    82131a679769 merged-head parents: 0 b    ├─╮    │ ○  a7bf5001cfd8 b parents: a    │ ○  6ca0450a05f5 a parents:    │ │ ○  daef04bc3fae 2 parents: 0    ├───╯    │ │ ○  0c058af014a6 1 parents: 0    ├───╯    ○ │  745bea8029c1 0 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");} #[test]fn test_parallelize_interior_target_is_a_merge() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");    work_dir.run_jj(["commit", "-m=0"]).success();    work_dir.run_jj(["describe", "-m=1"]).success();    work_dir.run_jj(["new", "root()", "-m=a"]).success();    work_dir        .run_jj(["new", "description(1)", "description(a)", "-m=2"])        .success();    work_dir.run_jj(["new", "-m=3"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  9b77792c77ac 3 parents: 2    ○    1e29145c95fd 2 parents: 1 a    ├─╮    │ ○  427890ea3f2b a parents:    ○ │  0c058af014a6 1 parents: 0    ○ │  745bea8029c1 0 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");     work_dir        .run_jj(["parallelize", "description(1)::"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @    042fc3f4315c 3 parents: 0 a    ├─╮    │ │ ○  80603361bb48 2 parents: 0 a    ╭─┬─╯    │ ○  427890ea3f2b a parents:    │ │ ○  0c058af014a6 1 parents: 0    ├───╯    ○ │  745bea8029c1 0 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");} #[test]fn test_parallelize_root_is_a_merge() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");    work_dir.run_jj(["describe", "-m=y"]).success();    work_dir.run_jj(["new", "root()", "-m=x"]).success();    work_dir        .run_jj(["new", "description(y)", "description(x)", "-m=1"])        .success();    work_dir.run_jj(["new", "-m=2"]).success();    work_dir.run_jj(["new", "-m=3"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  cc239b744d01 3 parents: 2    ○  2bf00c2ad44c 2 parents: 1    ○    1c6853121f3c 1 parents: y x    ├─╮    │ ○  4035b23c8f72 x parents:    ○ │  ca57511e158f y parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");     work_dir        .run_jj(["parallelize", "description(1)::description(2)"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @    2c7fdfa00b38 3 parents: 1 2    ├─╮    │ ○    3acbd32944d6 2 parents: y x    │ ├─╮    ○ │ │  1c6853121f3c 1 parents: y x    ╰─┬─╮      │ ○  4035b23c8f72 x parents:      ○ │  ca57511e158f y parents:      ├─╯      ◆  000000000000 parents:    [EOF]    ");} #[test]fn test_parallelize_multiple_heads() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");    work_dir.run_jj(["commit", "-m=0"]).success();    work_dir.run_jj(["describe", "-m=1"]).success();    work_dir.run_jj(["new", "description(0)", "-m=2"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  97d7522f40e8 2 parents: 0    │ ○  0c058af014a6 1 parents: 0    ├─╯    ○  745bea8029c1 0 parents:    ◆  000000000000 parents:    [EOF]    ");     work_dir        .run_jj(["parallelize", "description(0)::"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  e84481c26195 2 parents:    │ ○  6270540ee067 1 parents:    ├─╯    │ ○  745bea8029c1 0 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");} // All heads must have the same children as the other heads, but only if they// have children. In this test only one head has children, so the command// succeeds.#[test]fn test_parallelize_multiple_heads_with_and_without_children() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");    work_dir.run_jj(["commit", "-m=0"]).success();    work_dir.run_jj(["describe", "-m=1"]).success();    work_dir.run_jj(["new", "description(0)", "-m=2"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  97d7522f40e8 2 parents: 0    │ ○  0c058af014a6 1 parents: 0    ├─╯    ○  745bea8029c1 0 parents:    ◆  000000000000 parents:    [EOF]    ");     work_dir        .run_jj(["parallelize", "description(0)", "description(1)"])        .success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  97d7522f40e8 2 parents: 0    ○  745bea8029c1 0 parents:    │ ○  6270540ee067 1 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");} #[test]fn test_parallelize_multiple_roots() {    let test_env = TestEnvironment::default();    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        .run_jj(["new", "description(1)", "description(a)", "-m=2"])        .success();    work_dir.run_jj(["new", "-m=3"]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  34da938ad94a 3 parents: 2    ○    85d5043b881d 2 parents: 1 a    ├─╮    │ ○  6d37472c632c a parents:    ○ │  8b64ddff700d 1 parents:    ├─╯    ◆  000000000000 parents:    [EOF]    ");     // Succeeds because the roots have the same parents.    work_dir.run_jj(["parallelize", "root().."]).success();    insta::assert_snapshot!(get_log_output(&work_dir), @r"    @  3c90598481cd 3 parents:    │ ○  b96aa55582e5 2 parents:    ├─╯    │ ○  6d37472c632c a parents:    ├─╯

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