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jj/lib/tests/test_conflicts.rs
Martin von Zweigbergk f16d2a237b backend: pass in path when reading/writing conflicts as well 
We do it for all the other kinds of objects already. It's useful to
have the path for backends that store objects by path (we don't have
any such backends yet). I think the reason I didn't do it from the
beginning was because we had separate `RepoPath` types for files and
directories back then.
2022-03-31 10:23:33 -07:00

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// Copyright 2021 Google LLC
//
// 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::MergeHunk;
use jujutsu_lib::repo_path::RepoPath;
use jujutsu_lib::testutils;
#[test]
fn test_materialize_conflict_basic() {
let settings = testutils::user_settings();
let test_repo = testutils::init_repo(&settings, 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
right
line 4
line 5
",
);
let conflict = Conflict {
removes: vec![ConflictPart {
value: TreeValue::Normal {
id: base_id,
executable: false,
},
}],
adds: vec![
ConflictPart {
value: TreeValue::Normal {
id: left_id,
executable: false,
},
},
ConflictPart {
value: TreeValue::Normal {
id: right_id,
executable: false,
},
},
],
};
let mut result: Vec<u8> = vec![];
materialize_conflict(store, &path, &conflict, &mut result).unwrap();
assert_eq!(
String::from_utf8(result).unwrap().as_str(),
"line 1
line 2
<<<<<<<
-------
+++++++
-line 3
+left
+++++++
right
>>>>>>>
line 4
line 5
"
);
}
#[test]
fn test_materialize_conflict_modify_delete() {
let settings = testutils::user_settings();
let test_repo = testutils::init_repo(&settings, 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::Normal {
id: base_id,
executable: false,
},
}],
adds: vec![
ConflictPart {
value: TreeValue::Normal {
id: left_id,
executable: false,
},
},
ConflictPart {
value: TreeValue::Normal {
id: right_id,
executable: false,
},
},
],
};
let mut result: Vec<u8> = vec![];
materialize_conflict(store, &path, &conflict, &mut result).unwrap();
assert_eq!(
String::from_utf8(result).unwrap().as_str(),
"line 1
line 2
<<<<<<<
-------
+++++++
-line 3
+left
+++++++
>>>>>>>
line 4
line 5
"
);
}
#[test]
fn test_materialize_conflict_delete_modify() {
let settings = testutils::user_settings();
let test_repo = testutils::init_repo(&settings, 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::Normal {
id: base_id,
executable: false,
},
}],
adds: vec![
ConflictPart {
value: TreeValue::Normal {
id: left_id,
executable: false,
},
},
ConflictPart {
value: TreeValue::Normal {
id: right_id,
executable: false,
},
},
],
};
let mut result: Vec<u8> = vec![];
materialize_conflict(store, &path, &conflict, &mut result).unwrap();
assert_eq!(
String::from_utf8(result).unwrap().as_str(),
"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 {
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 {
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 `-------` and `+++++++` (it needs at least one
// of them)
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 settings = testutils::user_settings();
let test_repo = testutils::init_repo(&settings, 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::Normal {
id: base_file_id,
executable: false,
},
}],
adds: vec![
ConflictPart {
value: TreeValue::Normal {
id: left_file_id,
executable: false,
},
},
ConflictPart {
value: TreeValue::Normal {
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+++++++\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::Normal {
id: new_base_file_id,
executable: false
}
}],
adds: vec![
ConflictPart {
value: TreeValue::Normal {
id: new_left_file_id,
executable: false
}
},
ConflictPart {
value: TreeValue::Normal {
id: new_right_file_id,
executable: false
}
}
]
}
)
}
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