// 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 test_case::test_case; use crate::common::create_commit;use crate::common::TestEnvironment; #[test]fn test_simplify_parents_no_commits() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     let output = work_dir.run_jj(["simplify-parents", "-r", "root() ~ root()"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Nothing changed.    [EOF]    ");} #[test]fn test_simplify_parents_immutable() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     let output = work_dir.run_jj(["simplify-parents", "-r", "root()"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Error: The root commit 000000000000 is immutable    [EOF]    [exit status: 1]    ");} #[test]fn test_simplify_parents_no_change() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     create_commit(&work_dir, "a", &["root()"]);    create_commit(&work_dir, "b", &["a"]);    let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::assert_snapshot!(output, @r"    @  b    ○  a    ◆    [EOF]    ");     let output = work_dir.run_jj(["simplify-parents", "-s", "@-"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Nothing changed.    [EOF]    ");     let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::assert_snapshot!(output, @r"    @  b    ○  a    ◆    [EOF]    ");} #[test]fn test_simplify_parents_no_change_diamond() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     create_commit(&work_dir, "a", &["root()"]);    create_commit(&work_dir, "b", &["a"]);    create_commit(&work_dir, "c", &["a"]);    create_commit(&work_dir, "d", &["b", "c"]);    let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::assert_snapshot!(output, @r"    @    d    ├─╮    │ ○  c    ○ │  b    ├─╯    ○  a    ◆    [EOF]    ");     let output = work_dir.run_jj(["simplify-parents", "-r", "all() ~ root()"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Nothing changed.    [EOF]    ");     let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::assert_snapshot!(output, @r"    @    d    ├─╮    │ ○  c    ○ │  b    ├─╯    ○  a    ◆    [EOF]    ");} #[test_case(&["simplify-parents", "-r", "@", "-r", "@-"] ; "revisions")]#[test_case(&["simplify-parents", "-s", "@-"] ; "sources")]fn test_simplify_parents_redundant_parent(args: &[&str]) {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     create_commit(&work_dir, "a", &["root()"]);    create_commit(&work_dir, "b", &["a"]);    create_commit(&work_dir, "c", &["a", "b"]);    let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::allow_duplicates! {        insta::assert_snapshot!(output, @r"        @    c        ├─╮        │ ○  b        ├─╯        ○  a        ◆        [EOF]        ");    }    let output = work_dir.run_jj(args);    insta::allow_duplicates! {        insta::assert_snapshot!(output, @r"        ------- stderr -------        Removed 1 edges from 1 out of 3 commits.        Working copy  (@) now at: royxmykx 265f0407 c | c        Parent commit (@-)      : zsuskuln 123b4d91 b | b        [EOF]        ");    }     let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::allow_duplicates! {        insta::assert_snapshot!(output, @r"        @  c        ○  b        ○  a        ◆        [EOF]        ");    }} #[test]fn test_simplify_parents_multiple_redundant_parents() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     create_commit(&work_dir, "a", &["root()"]);    create_commit(&work_dir, "b", &["a"]);    create_commit(&work_dir, "c", &["a", "b"]);    create_commit(&work_dir, "d", &["c"]);    create_commit(&work_dir, "e", &["d"]);    create_commit(&work_dir, "f", &["d", "e"]);    let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::assert_snapshot!(output, @r"    @    f    ├─╮    │ ○  e    ├─╯    ○  d    ○    c    ├─╮    │ ○  b    ├─╯    ○  a    ◆    [EOF]    ");    let setup_opid = work_dir.current_operation_id();     // Test with `-r`.    let output = work_dir.run_jj(["simplify-parents", "-r", "c", "-r", "f"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Removed 2 edges from 2 out of 2 commits.    Rebased 2 descendant commits    Working copy  (@) now at: kmkuslsw 58e098e5 f | f    Parent commit (@-)      : znkkpsqq 374f4ddc e | e    [EOF]    ");     let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::assert_snapshot!(output, @r"    @  f    ○  e    ○  d    ○  c    ○  b    ○  a    ◆    [EOF]    ");     // Test with `-s`.    work_dir.run_jj(["op", "restore", &setup_opid]).success();    let output = work_dir.run_jj(["simplify-parents", "-s", "c"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Removed 2 edges from 2 out of 4 commits.    Rebased 2 descendant commits    Working copy  (@) now at: kmkuslsw 37ef137f f | f    Parent commit (@-)      : znkkpsqq b982b07d e | e    [EOF]    ");     let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::assert_snapshot!(output, @r"    @  f    ○  e    ○  d    ○  c    ○  b    ○  a    ◆    [EOF]    ");} #[test]fn test_simplify_parents_no_args() {    let test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let work_dir = test_env.work_dir("repo");     create_commit(&work_dir, "a", &["root()"]);    create_commit(&work_dir, "b", &["a"]);    create_commit(&work_dir, "c", &["a", "b"]);    create_commit(&work_dir, "d", &["c"]);    create_commit(&work_dir, "e", &["d"]);    create_commit(&work_dir, "f", &["d", "e"]);    let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::assert_snapshot!(output, @r"    @    f    ├─╮    │ ○  e    ├─╯    ○  d    ○    c    ├─╮    │ ○  b    ├─╯    ○  a    ◆    [EOF]    ");    let setup_opid = work_dir.current_operation_id();     let output = work_dir.run_jj(["simplify-parents"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Removed 2 edges from 2 out of 6 commits.    Rebased 2 descendant commits    Working copy  (@) now at: kmkuslsw 58e098e5 f | f    Parent commit (@-)      : znkkpsqq 374f4ddc e | e    [EOF]    ");     let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::assert_snapshot!(output, @r"    @  f    ○  e    ○  d    ○  c    ○  b    ○  a    ◆    [EOF]    ");     // Test with custom `revsets.simplify-parents`.    work_dir.run_jj(["op", "restore", &setup_opid]).success();    test_env.add_config(r#"revsets.simplify-parents = "d::""#);    let output = work_dir.run_jj(["simplify-parents"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Removed 1 edges from 1 out of 3 commits.    Working copy  (@) now at: kmkuslsw 78ceb6e1 f | f    Parent commit (@-)      : znkkpsqq 009aef72 e | e    [EOF]    ");     let output = work_dir.run_jj(["log", "-r", "all()", "-T", "description"]);    insta::assert_snapshot!(output, @r"    @  f    ○  e    ○  d    ○    c    ├─╮    │ ○  b    ├─╯    ○  a    ◆    [EOF]    ");}