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jj/lib/tests/test_conflicts.rs
Ilya Grigoriev 55762e3681 Rename FileConflictData to ConflictHunk, use it in files.rs. 
There's no point in having two identical types used for the same
purpose in two different places.
2022-12-03 15:12:40 -08:00

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// Copyright 2021 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 jujutsu_lib::backend::{Conflict, ConflictPart, TreeValue};
use jujutsu_lib::conflicts::{materialize_conflict, parse_conflict, update_conflict_from_content};
use jujutsu_lib::files::{ConflictHunk, MergeHunk};
use jujutsu_lib::repo_path::RepoPath;
use jujutsu_lib::store::Store;
use testutils::TestRepo;
#[test]
fn test_materialize_conflict_basic() {
let test_repo = TestRepo::init(false);
let store = test_repo.repo.store();
let path = RepoPath::from_internal_string("file");
let base_id = testutils::write_file(
store,
&path,
"line 1
line 2
line 3
line 4
line 5
",
);
let left_id = testutils::write_file(
store,
&path,
"line 1
line 2
left 3.1
left 3.2
left 3.3
line 4
line 5
",
);
let right_id = testutils::write_file(
store,
&path,
"line 1
line 2
right 3.1
line 4
line 5
",
);
let mut conflict = Conflict {
removes: vec![ConflictPart {
value: TreeValue::File {
id: base_id,
executable: false,
},
}],
adds: vec![
ConflictPart {
value: TreeValue::File {
id: left_id,
executable: false,
},
},
ConflictPart {
value: TreeValue::File {
id: right_id,
executable: false,
},
},
],
};
insta::assert_snapshot!(
&materialize_conflict_string(store, &path, &conflict),
@r###"
line 1
line 2
<<<<<<<
%%%%%%%
-line 3
+right 3.1
+++++++
left 3.1
left 3.2
left 3.3
>>>>>>>
line 4
line 5
"###
);
// Test with the larger diff first. We still want the small diff.
conflict.adds.reverse();
insta::assert_snapshot!(
&materialize_conflict_string(store, &path, &conflict),
@r###"
line 1
line 2
<<<<<<<
%%%%%%%
-line 3
+right 3.1
+++++++
left 3.1
left 3.2
left 3.3
>>>>>>>
line 4
line 5
"###
);
}
#[test]
fn test_materialize_conflict_modify_delete() {
let test_repo = TestRepo::init(false);
let store = test_repo.repo.store();
let path = RepoPath::from_internal_string("file");
let base_id = testutils::write_file(
store,
&path,
"line 1
line 2
line 3
line 4
line 5
",
);
let left_id = testutils::write_file(
store,
&path,
"line 1
line 2
left
line 4
line 5
",
);
let right_id = testutils::write_file(
store,
&path,
"line 1
line 2
line 4
line 5
",
);
let conflict = Conflict {
removes: vec![ConflictPart {
value: TreeValue::File {
id: base_id,
executable: false,
},
}],
adds: vec![
ConflictPart {
value: TreeValue::File {
id: left_id,
executable: false,
},
},
ConflictPart {
value: TreeValue::File {
id: right_id,
executable: false,
},
},
],
};
insta::assert_snapshot!(&materialize_conflict_string(store, &path, &conflict), @r###"
line 1
line 2
<<<<<<<
%%%%%%%
-line 3
+++++++
left
>>>>>>>
line 4
line 5
"###
);
}
#[test]
fn test_materialize_conflict_delete_modify() {
let test_repo = TestRepo::init(false);
let store = test_repo.repo.store();
let path = RepoPath::from_internal_string("file");
let base_id = testutils::write_file(
store,
&path,
"line 1
line 2
line 3
line 4
line 5
",
);
let left_id = testutils::write_file(
store,
&path,
"line 1
line 2
line 4
line 5
",
);
let right_id = testutils::write_file(
store,
&path,
"line 1
line 2
right
line 4
line 5
",
);
let conflict = Conflict {
removes: vec![ConflictPart {
value: TreeValue::File {
id: base_id,
executable: false,
},
}],
adds: vec![
ConflictPart {
value: TreeValue::File {
id: left_id,
executable: false,
},
},
ConflictPart {
value: TreeValue::File {
id: right_id,
executable: false,
},
},
],
};
insta::assert_snapshot!(
&materialize_conflict_string(store, &path, &conflict),
@r###"
line 1
line 2
<<<<<<<
%%%%%%%
-line 3
+++++++
right
>>>>>>>
line 4
line 5
"###
);
}
#[test]
fn test_parse_conflict_resolved() {
assert_eq!(
parse_conflict(
b"line 1
line 2
line 3
line 4
line 5
",
1,
2
),
None
)
}
#[test]
fn test_parse_conflict_simple() {
assert_eq!(
parse_conflict(
b"line 1
<<<<<<<
%%%%%%%
line 2
-line 3
+left
line 4
+++++++
right
>>>>>>>
line 5
",
1,
2
),
Some(vec![
MergeHunk::Resolved(b"line 1\n".to_vec()),
MergeHunk::Conflict(ConflictHunk {
removes: vec![b"line 2\nline 3\nline 4\n".to_vec()],
adds: vec![b"line 2\nleft\nline 4\n".to_vec(), b"right\n".to_vec()]
}),
MergeHunk::Resolved(b"line 5\n".to_vec())
])
)
}
#[test]
fn test_parse_conflict_multi_way() {
assert_eq!(
parse_conflict(
b"line 1
<<<<<<<
%%%%%%%
line 2
-line 3
+left
line 4
+++++++
right
%%%%%%%
line 2
+forward
line 3
line 4
>>>>>>>
line 5
",
2,
3
),
Some(vec![
MergeHunk::Resolved(b"line 1\n".to_vec()),
MergeHunk::Conflict(ConflictHunk {
removes: vec![
b"line 2\nline 3\nline 4\n".to_vec(),
b"line 2\nline 3\nline 4\n".to_vec()
],
adds: vec![
b"line 2\nleft\nline 4\n".to_vec(),
b"right\n".to_vec(),
b"line 2\nforward\nline 3\nline 4\n".to_vec()
]
}),
MergeHunk::Resolved(b"line 5\n".to_vec())
])
)
}
#[test]
fn test_parse_conflict_different_wrong_arity() {
assert_eq!(
parse_conflict(
b"line 1
<<<<<<<
%%%%%%%
line 2
-line 3
+left
line 4
+++++++
right
>>>>>>>
line 5
",
2,
3
),
None
)
}
#[test]
fn test_parse_conflict_malformed_marker() {
// The conflict marker is missing `%%%%%%%`
assert_eq!(
parse_conflict(
b"line 1
<<<<<<<
line 2
-line 3
+left
line 4
+++++++
right
>>>>>>>
line 5
",
1,
2
),
None
)
}
#[test]
fn test_parse_conflict_malformed_diff() {
// The diff part is invalid (missing space before "line 4")
assert_eq!(
parse_conflict(
b"line 1
<<<<<<<
%%%%%%%
line 2
-line 3
+left
line 4
+++++++
right
>>>>>>>
line 5
",
1,
2
),
None
)
}
#[test]
fn test_update_conflict_from_content() {
let test_repo = TestRepo::init(false);
let store = test_repo.repo.store();
let path = RepoPath::from_internal_string("dir/file");
let base_file_id = testutils::write_file(store, &path, "line 1\nline 2\nline 3\n");
let left_file_id = testutils::write_file(store, &path, "left 1\nline 2\nleft 3\n");
let right_file_id = testutils::write_file(store, &path, "right 1\nline 2\nright 3\n");
let conflict = Conflict {
removes: vec![ConflictPart {
value: TreeValue::File {
id: base_file_id,
executable: false,
},
}],
adds: vec![
ConflictPart {
value: TreeValue::File {
id: left_file_id,
executable: false,
},
},
ConflictPart {
value: TreeValue::File {
id: right_file_id,
executable: false,
},
},
],
};
let conflict_id = store.write_conflict(&path, &conflict).unwrap();
// If the content is unchanged compared to the materialized value, we get the
// old conflict id back.
let mut materialized = vec![];
materialize_conflict(store, &path, &conflict, &mut materialized).unwrap();
let result = update_conflict_from_content(store, &path, &conflict_id, &materialized).unwrap();
assert_eq!(result, Some(conflict_id.clone()));
// If the conflict is resolved, we None back to indicate that.
let result = update_conflict_from_content(
store,
&path,
&conflict_id,
b"resolved 1\nline 2\nresolved 3\n",
)
.unwrap();
assert_eq!(result, None);
// If the conflict is partially resolved, we get a new conflict back.
let result = update_conflict_from_content(
store,
&path,
&conflict_id,
b"resolved 1\nline 2\n<<<<<<<\n%%%%%%%\n-line 3\n+left 3\n+++++++\nright 3\n>>>>>>>\n",
)
.unwrap();
assert_ne!(result, None);
assert_ne!(result, Some(conflict_id));
let new_conflict = store.read_conflict(&path, &result.unwrap()).unwrap();
// Calculate expected new FileIds
let new_base_file_id = testutils::write_file(store, &path, "resolved 1\nline 2\nline 3\n");
let new_left_file_id = testutils::write_file(store, &path, "resolved 1\nline 2\nleft 3\n");
let new_right_file_id = testutils::write_file(store, &path, "resolved 1\nline 2\nright 3\n");
assert_eq!(
new_conflict,
Conflict {
removes: vec![ConflictPart {
value: TreeValue::File {
id: new_base_file_id,
executable: false
}
}],
adds: vec![
ConflictPart {
value: TreeValue::File {
id: new_left_file_id,
executable: false
}
},
ConflictPart {
value: TreeValue::File {
id: new_right_file_id,
executable: false
}
}
]
}
)
}
fn materialize_conflict_string(store: &Store, path: &RepoPath, conflict: &Conflict) -> String {
let mut result: Vec<u8> = vec![];
materialize_conflict(store, path, conflict, &mut result).unwrap();
String::from_utf8(result).unwrap()
}
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