jj/lib/tests/test_conflicts.rs
Scott Taylor e5cb9f94f6 conflicts: add "ui.conflict-marker-style" config
Adds a new "ui.conflict-marker-style" config option. The "diff" option
is the default jj-style conflict markers with a snapshot and a series of
diffs to apply to the snapshot. New conflict marker style options will
be added in later commits.

The majority of the changes in this commit are from passing the config
option down to the code that materializes the conflicts.

Example of "diff" conflict markers:

```
<<<<<<< Conflict 1 of 1
+++++++ Contents of side #1
fn example(word: String) {
    println!("word is {word}");
%%%%%%% Changes from base to side #2
-fn example(w: String) {
+fn example(w: &str) {
     println!("word is {w}");
>>>>>>> Conflict 1 of 1 ends
}
```
2024-11-23 08:28:47 -06:00

1165 lines
30 KiB
Rust

// 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 indoc::indoc;
use jj_lib::backend::FileId;
use jj_lib::conflicts::extract_as_single_hunk;
use jj_lib::conflicts::materialize_merge_result_to_bytes;
use jj_lib::conflicts::parse_conflict;
use jj_lib::conflicts::update_from_content;
use jj_lib::conflicts::ConflictMarkerStyle;
use jj_lib::merge::Merge;
use jj_lib::repo::Repo;
use jj_lib::repo_path::RepoPath;
use jj_lib::store::Store;
use pollster::FutureExt;
use testutils::TestRepo;
#[test]
fn test_materialize_conflict_basic() {
let test_repo = TestRepo::init();
let store = test_repo.repo.store();
let path = RepoPath::from_internal_string("file");
let base_id = testutils::write_file(
store,
path,
indoc! {"
line 1
line 2
line 3
line 4
line 5
"},
);
let left_id = testutils::write_file(
store,
path,
indoc! {"
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,
indoc! {"
line 1
line 2
right 3.1
line 4
line 5
"},
);
// The left side should come first. The diff should be use the smaller (right)
// side, and the left side should be a snapshot.
let conflict = Merge::from_removes_adds(
vec![Some(base_id.clone())],
vec![Some(left_id.clone()), Some(right_id.clone())],
);
insta::assert_snapshot!(
&materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff),
@r###"
line 1
line 2
<<<<<<< Conflict 1 of 1
+++++++ Contents of side #1
left 3.1
left 3.2
left 3.3
%%%%%%% Changes from base to side #2
-line 3
+right 3.1
>>>>>>> Conflict 1 of 1 ends
line 4
line 5
"###
);
// Swap the positive terms in the conflict. The diff should still use the right
// side, but now the right side should come first.
let conflict = Merge::from_removes_adds(
vec![Some(base_id.clone())],
vec![Some(right_id.clone()), Some(left_id.clone())],
);
insta::assert_snapshot!(
&materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff),
@r###"
line 1
line 2
<<<<<<< Conflict 1 of 1
%%%%%%% Changes from base to side #1
-line 3
+right 3.1
+++++++ Contents of side #2
left 3.1
left 3.2
left 3.3
>>>>>>> Conflict 1 of 1 ends
line 4
line 5
"###
);
}
#[test]
fn test_materialize_conflict_multi_rebase_conflicts() {
let test_repo = TestRepo::init();
let store = test_repo.repo.store();
// Create changes (a, b, c) on top of the base, and linearize them.
let path = RepoPath::from_internal_string("file");
let base_id = testutils::write_file(
store,
path,
indoc! {"
line 1
line 2 base
line 3
"},
);
let a_id = testutils::write_file(
store,
path,
indoc! {"
line 1
line 2 a.1
line 2 a.2
line 2 a.3
line 3
"},
);
let b_id = testutils::write_file(
store,
path,
indoc! {"
line 1
line 2 b.1
line 2 b.2
line 3
"},
);
let c_id = testutils::write_file(
store,
path,
indoc! {"
line 1
line 2 c.1
line 3
"},
);
// The order of (a, b, c) should be preserved. For all cases, the "a" side
// should be a snapshot.
let conflict = Merge::from_removes_adds(
vec![Some(base_id.clone()), Some(base_id.clone())],
vec![Some(a_id.clone()), Some(b_id.clone()), Some(c_id.clone())],
);
insta::assert_snapshot!(
&materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff),
@r###"
line 1
<<<<<<< Conflict 1 of 1
+++++++ Contents of side #1
line 2 a.1
line 2 a.2
line 2 a.3
%%%%%%% Changes from base #1 to side #2
-line 2 base
+line 2 b.1
+line 2 b.2
%%%%%%% Changes from base #2 to side #3
-line 2 base
+line 2 c.1
>>>>>>> Conflict 1 of 1 ends
line 3
"###
);
let conflict = Merge::from_removes_adds(
vec![Some(base_id.clone()), Some(base_id.clone())],
vec![Some(c_id.clone()), Some(b_id.clone()), Some(a_id.clone())],
);
insta::assert_snapshot!(
&materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff),
@r###"
line 1
<<<<<<< Conflict 1 of 1
%%%%%%% Changes from base #1 to side #1
-line 2 base
+line 2 c.1
%%%%%%% Changes from base #2 to side #2
-line 2 base
+line 2 b.1
+line 2 b.2
+++++++ Contents of side #3
line 2 a.1
line 2 a.2
line 2 a.3
>>>>>>> Conflict 1 of 1 ends
line 3
"###
);
let conflict = Merge::from_removes_adds(
vec![Some(base_id.clone()), Some(base_id.clone())],
vec![Some(c_id.clone()), Some(a_id.clone()), Some(b_id.clone())],
);
insta::assert_snapshot!(
&materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff),
@r###"
line 1
<<<<<<< Conflict 1 of 1
%%%%%%% Changes from base #1 to side #1
-line 2 base
+line 2 c.1
+++++++ Contents of side #2
line 2 a.1
line 2 a.2
line 2 a.3
%%%%%%% Changes from base #2 to side #3
-line 2 base
+line 2 b.1
+line 2 b.2
>>>>>>> Conflict 1 of 1 ends
line 3
"###
);
}
// TODO: With options
#[test]
fn test_materialize_parse_roundtrip() {
let test_repo = TestRepo::init();
let store = test_repo.repo.store();
let path = RepoPath::from_internal_string("file");
let base_id = testutils::write_file(
store,
path,
indoc! {"
line 1
line 2
line 3
line 4
line 5
"},
);
let left_id = testutils::write_file(
store,
path,
indoc! {"
line 1 left
line 2 left
line 3
line 4
line 5 left
"},
);
let right_id = testutils::write_file(
store,
path,
indoc! {"
line 1 right
line 2
line 3
line 4 right
line 5 right
"},
);
let conflict = Merge::from_removes_adds(
vec![Some(base_id.clone())],
vec![Some(left_id.clone()), Some(right_id.clone())],
);
let materialized =
materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff);
insta::assert_snapshot!(
materialized,
@r###"
<<<<<<< Conflict 1 of 2
+++++++ Contents of side #1
line 1 left
line 2 left
%%%%%%% Changes from base to side #2
-line 1
+line 1 right
line 2
>>>>>>> Conflict 1 of 2 ends
line 3
<<<<<<< Conflict 2 of 2
%%%%%%% Changes from base to side #1
line 4
-line 5
+line 5 left
+++++++ Contents of side #2
line 4 right
line 5 right
>>>>>>> Conflict 2 of 2 ends
"###
);
// The first add should always be from the left side
insta::assert_debug_snapshot!(
parse_conflict(materialized.as_bytes(), conflict.num_sides()),
@r###"
Some(
[
Conflicted(
[
"line 1 left\nline 2 left\n",
"line 1\nline 2\n",
"line 1 right\nline 2\n",
],
),
Resolved(
"line 3\n",
),
Conflicted(
[
"line 4\nline 5 left\n",
"line 4\nline 5\n",
"line 4 right\nline 5 right\n",
],
),
],
)
"###);
}
#[test]
fn test_materialize_conflict_no_newlines_at_eof() {
let test_repo = TestRepo::init();
let store = test_repo.repo.store();
let path = RepoPath::from_internal_string("file");
let base_id = testutils::write_file(store, path, "base");
let left_empty_id = testutils::write_file(store, path, "");
let right_id = testutils::write_file(store, path, "right");
let conflict = Merge::from_removes_adds(
vec![Some(base_id.clone())],
vec![Some(left_empty_id.clone()), Some(right_id.clone())],
);
let materialized =
&materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff);
insta::assert_snapshot!(materialized,
@r###"
<<<<<<< Conflict 1 of 1
%%%%%%% Changes from base to side #1
-base+++++++ Contents of side #2
right>>>>>>> Conflict 1 of 1 ends
"###
);
// BUG(#3968): These conflict markers cannot be parsed
insta::assert_debug_snapshot!(parse_conflict(
materialized.as_bytes(),
conflict.num_sides()
),@"None");
}
#[test]
fn test_materialize_conflict_modify_delete() {
let test_repo = TestRepo::init();
let store = test_repo.repo.store();
let path = RepoPath::from_internal_string("file");
let base_id = testutils::write_file(
store,
path,
indoc! {"
line 1
line 2
line 3
line 4
line 5
"},
);
let modified_id = testutils::write_file(
store,
path,
indoc! {"
line 1
line 2
modified
line 4
line 5
"},
);
let deleted_id = testutils::write_file(
store,
path,
indoc! {"
line 1
line 2
line 4
line 5
"},
);
// left modifies a line, right deletes the same line.
let conflict = Merge::from_removes_adds(
vec![Some(base_id.clone())],
vec![Some(modified_id.clone()), Some(deleted_id.clone())],
);
insta::assert_snapshot!(&materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff), @r###"
line 1
line 2
<<<<<<< Conflict 1 of 1
+++++++ Contents of side #1
modified
%%%%%%% Changes from base to side #2
-line 3
>>>>>>> Conflict 1 of 1 ends
line 4
line 5
"###
);
// right modifies a line, left deletes the same line.
let conflict = Merge::from_removes_adds(
vec![Some(base_id.clone())],
vec![Some(deleted_id.clone()), Some(modified_id.clone())],
);
insta::assert_snapshot!(&materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff), @r###"
line 1
line 2
<<<<<<< Conflict 1 of 1
%%%%%%% Changes from base to side #1
-line 3
+++++++ Contents of side #2
modified
>>>>>>> Conflict 1 of 1 ends
line 4
line 5
"###
);
// modify/delete conflict at the file level
let conflict = Merge::from_removes_adds(
vec![Some(base_id.clone())],
vec![Some(modified_id.clone()), None],
);
insta::assert_snapshot!(&materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff), @r###"
<<<<<<< Conflict 1 of 1
%%%%%%% Changes from base to side #1
line 1
line 2
-line 3
+modified
line 4
line 5
+++++++ Contents of side #2
>>>>>>> Conflict 1 of 1 ends
"###
);
}
#[test]
fn test_materialize_conflict_two_forward_diffs() {
let test_repo = TestRepo::init();
let store = test_repo.repo.store();
// Create conflict A-B+B-C+D-E+C. This is designed to tempt the algorithm to
// produce a negative snapshot at the end like this:
// <<<<
// ====
// A
// %%%%
// B
// ++++
// D
// %%%%
// C
// ----
// E
// >>>>
// TODO: Maybe we should never have negative snapshots
let path = RepoPath::from_internal_string("file");
let a_id = testutils::write_file(store, path, "A\n");
let b_id = testutils::write_file(store, path, "B\n");
let c_id = testutils::write_file(store, path, "C\n");
let d_id = testutils::write_file(store, path, "D\n");
let e_id = testutils::write_file(store, path, "E\n");
let conflict = Merge::from_removes_adds(
vec![Some(b_id.clone()), Some(c_id.clone()), Some(e_id.clone())],
vec![
Some(a_id.clone()),
Some(b_id.clone()),
Some(d_id.clone()),
Some(c_id.clone()),
],
);
insta::assert_snapshot!(
&materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff),
@r###"
<<<<<<< Conflict 1 of 1
+++++++ Contents of side #1
A
%%%%%%% Changes from base #1 to side #2
B
+++++++ Contents of side #3
D
%%%%%%% Changes from base #2 to side #4
C
------- Contents of base #3
E
>>>>>>> Conflict 1 of 1 ends
"###
);
}
#[test]
fn test_parse_conflict_resolved() {
assert_eq!(
parse_conflict(
indoc! {b"
line 1
line 2
line 3
line 4
line 5
"},
2
),
None
);
}
#[test]
fn test_parse_conflict_simple() {
insta::assert_debug_snapshot!(
parse_conflict(indoc! {b"
line 1
<<<<<<<
%%%%%%%
line 2
-line 3
+left
line 4
+++++++
right
>>>>>>>
line 5
"},
2
),
@r###"
Some(
[
Resolved(
"line 1\n",
),
Conflicted(
[
"line 2\nleft\nline 4\n",
"line 2\nline 3\nline 4\n",
"right\n",
],
),
Resolved(
"line 5\n",
),
],
)
"###
);
insta::assert_debug_snapshot!(
parse_conflict(indoc! {b"
line 1
<<<<<<< Text
%%%%%%% Different text
line 2
-line 3
+left
line 4
+++++++ Yet <><>< more text
right
>>>>>>> More and more text
line 5
"},
2
),
@r###"
Some(
[
Resolved(
"line 1\n",
),
Conflicted(
[
"line 2\nleft\nline 4\n",
"line 2\nline 3\nline 4\n",
"right\n",
],
),
Resolved(
"line 5\n",
),
],
)
"###
);
// The conflict markers are too long and shouldn't parse (though we may
// decide to change this in the future)
insta::assert_debug_snapshot!(
parse_conflict(indoc! {b"
line 1
<<<<<<<<<<<
%%%%%%%%%%%
line 2
-line 3
+left
line 4
+++++++++++
right
>>>>>>>>>>>
line 5
"},
2
),
@"None"
);
}
#[test]
fn test_parse_conflict_multi_way() {
insta::assert_debug_snapshot!(
parse_conflict(
indoc! {b"
line 1
<<<<<<<
%%%%%%%
line 2
-line 3
+left
line 4
+++++++
right
%%%%%%%
line 2
+forward
line 3
line 4
>>>>>>>
line 5
"},
3
),
@r###"
Some(
[
Resolved(
"line 1\n",
),
Conflicted(
[
"line 2\nleft\nline 4\n",
"line 2\nline 3\nline 4\n",
"right\n",
"line 2\nline 3\nline 4\n",
"line 2\nforward\nline 3\nline 4\n",
],
),
Resolved(
"line 5\n",
),
],
)
"###
);
insta::assert_debug_snapshot!(
parse_conflict(indoc! {b"
line 1
<<<<<<< Random text
%%%%%%% Random text
line 2
-line 3
+left
line 4
+++++++ Random text
right
%%%%%%% Random text
line 2
+forward
line 3
line 4
>>>>>>> Random text
line 5
"},
3
),
@r###"
Some(
[
Resolved(
"line 1\n",
),
Conflicted(
[
"line 2\nleft\nline 4\n",
"line 2\nline 3\nline 4\n",
"right\n",
"line 2\nline 3\nline 4\n",
"line 2\nforward\nline 3\nline 4\n",
],
),
Resolved(
"line 5\n",
),
],
)
"###
);
}
#[test]
fn test_parse_conflict_crlf_markers() {
// Conflict markers should be recognized even with CRLF
insta::assert_debug_snapshot!(
parse_conflict(
indoc! {b"
line 1\r
<<<<<<<\r
+++++++\r
left\r
-------\r
base\r
+++++++\r
right\r
>>>>>>>\r
line 5\r
"},
2
),
@r#"
Some(
[
Resolved(
"line 1\r\n",
),
Conflicted(
[
"left\r\n",
"base\r\n",
"right\r\n",
],
),
Resolved(
"line 5\r\n",
),
],
)
"#
);
}
#[test]
fn test_parse_conflict_diff_stripped_whitespace() {
// Should be able to parse conflict even if diff contains empty line (without
// even a leading space, which is sometimes stripped by text editors)
insta::assert_debug_snapshot!(
parse_conflict(
indoc! {b"
line 1
<<<<<<<
%%%%%%%
line 2
-line 3
+left
\r
line 4
+++++++
right
>>>>>>>
line 5
"},
2
),
@r#"
Some(
[
Resolved(
"line 1\n",
),
Conflicted(
[
"line 2\n\nleft\n\r\nline 4\n",
"line 2\n\nline 3\n\r\nline 4\n",
"right\n",
],
),
Resolved(
"line 5\n",
),
],
)
"#
);
}
#[test]
fn test_parse_conflict_wrong_arity() {
// Valid conflict marker but it has fewer sides than the caller expected
assert_eq!(
parse_conflict(
indoc! {b"
line 1
<<<<<<<
%%%%%%%
line 2
-line 3
+left
line 4
+++++++
right
>>>>>>>
line 5
"},
3
),
None
);
}
#[test]
fn test_parse_conflict_malformed_missing_removes() {
// Right number of adds but missing removes
assert_eq!(
parse_conflict(
indoc! {b"
line 1
<<<<<<<
+++++++
left
+++++++
right
>>>>>>>
line 5
"},
2
),
None
);
}
#[test]
fn test_parse_conflict_malformed_marker() {
// The conflict marker is missing `%%%%%%%`
assert_eq!(
parse_conflict(
indoc! {b"
line 1
<<<<<<<
line 2
-line 3
+left
line 4
+++++++
right
>>>>>>>
line 5
"},
2
),
None
);
}
#[test]
fn test_parse_conflict_malformed_diff() {
// The diff part is invalid (missing space before "line 4")
assert_eq!(
parse_conflict(
indoc! {b"
line 1
<<<<<<<
%%%%%%%
line 2
-line 3
+left
line 4
+++++++
right
>>>>>>>
line 5
"},
2
),
None
);
}
#[test]
fn test_update_conflict_from_content() {
let test_repo = TestRepo::init();
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 = Merge::from_removes_adds(
vec![Some(base_file_id.clone())],
vec![Some(left_file_id.clone()), Some(right_file_id.clone())],
);
// If the content is unchanged compared to the materialized value, we get the
// old conflict id back.
let materialized =
materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff);
let parse = |content| {
update_from_content(&conflict, store, path, content, ConflictMarkerStyle::Diff)
.block_on()
.unwrap()
};
assert_eq!(parse(materialized.as_bytes()), conflict);
// If the conflict is resolved, we get None back to indicate that.
let expected_file_id = testutils::write_file(store, path, "resolved 1\nline 2\nresolved 3\n");
assert_eq!(
parse(b"resolved 1\nline 2\nresolved 3\n"),
Merge::normal(expected_file_id)
);
// If the conflict is partially resolved, we get a new conflict back.
let new_conflict = parse(
b"resolved 1\nline 2\n<<<<<<<\n%%%%%%%\n-line 3\n+left 3\n+++++++\nright 3\n>>>>>>>\n",
);
assert_ne!(new_conflict, conflict);
// 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,
Merge::from_removes_adds(
vec![Some(new_base_file_id.clone())],
vec![
Some(new_left_file_id.clone()),
Some(new_right_file_id.clone())
]
)
);
}
#[test]
fn test_update_conflict_from_content_modify_delete() {
let test_repo = TestRepo::init();
let store = test_repo.repo.store();
let path = RepoPath::from_internal_string("dir/file");
let before_file_id = testutils::write_file(store, path, "line 1\nline 2 before\nline 3\n");
let after_file_id = testutils::write_file(store, path, "line 1\nline 2 after\nline 3\n");
let conflict =
Merge::from_removes_adds(vec![Some(before_file_id)], vec![Some(after_file_id), None]);
// If the content is unchanged compared to the materialized value, we get the
// old conflict id back.
let materialized =
materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff);
let parse = |content| {
update_from_content(&conflict, store, path, content, ConflictMarkerStyle::Diff)
.block_on()
.unwrap()
};
assert_eq!(parse(materialized.as_bytes()), conflict);
// If the conflict is resolved, we get None back to indicate that.
let expected_file_id = testutils::write_file(store, path, "resolved\n");
assert_eq!(parse(b"resolved\n"), Merge::normal(expected_file_id));
// If the conflict is modified, we get a new conflict back.
let new_conflict = parse(
b"<<<<<<<\n%%%%%%%\n line 1\n-line 2 before\n+line 2 modified after\n line 3\n+++++++\n>>>>>>>\n",
);
// Calculate expected new FileIds
let new_base_file_id = testutils::write_file(store, path, "line 1\nline 2 before\nline 3\n");
let new_left_file_id =
testutils::write_file(store, path, "line 1\nline 2 modified after\nline 3\n");
assert_eq!(
new_conflict,
Merge::from_removes_adds(
vec![Some(new_base_file_id.clone())],
vec![Some(new_left_file_id.clone()), None]
)
);
}
#[test]
fn test_update_conflict_from_content_simplified_conflict() {
let test_repo = TestRepo::init();
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");
// Conflict: left - base + base - base + right
let conflict = Merge::from_removes_adds(
vec![Some(base_file_id.clone()), Some(base_file_id.clone())],
vec![
Some(left_file_id.clone()),
Some(base_file_id.clone()),
Some(right_file_id.clone()),
],
);
let simplified_conflict = conflict.clone().simplify();
// If the content is unchanged compared to the materialized value, we get the
// old conflict id back. Both the simplified and unsimplified materialized
// conflicts should return the old conflict id.
let materialized =
materialize_conflict_string(store, path, &conflict, ConflictMarkerStyle::Diff);
let materialized_simplified =
materialize_conflict_string(store, path, &simplified_conflict, ConflictMarkerStyle::Diff);
let parse = |content| {
update_from_content(&conflict, store, path, content, ConflictMarkerStyle::Diff)
.block_on()
.unwrap()
};
insta::assert_snapshot!(
materialized,
@r###"
<<<<<<< Conflict 1 of 2
+++++++ Contents of side #1
left 1
%%%%%%% Changes from base #1 to side #2
line 1
%%%%%%% Changes from base #2 to side #3
-line 1
+right 1
>>>>>>> Conflict 1 of 2 ends
line 2
<<<<<<< Conflict 2 of 2
+++++++ Contents of side #1
left 3
%%%%%%% Changes from base #1 to side #2
line 3
%%%%%%% Changes from base #2 to side #3
-line 3
+right 3
>>>>>>> Conflict 2 of 2 ends
"###
);
insta::assert_snapshot!(
materialized_simplified,
@r###"
<<<<<<< Conflict 1 of 2
%%%%%%% Changes from base to side #1
-line 1
+left 1
+++++++ Contents of side #2
right 1
>>>>>>> Conflict 1 of 2 ends
line 2
<<<<<<< Conflict 2 of 2
%%%%%%% Changes from base to side #1
-line 3
+left 3
+++++++ Contents of side #2
right 3
>>>>>>> Conflict 2 of 2 ends
"###
);
assert_eq!(parse(materialized.as_bytes()), conflict);
assert_eq!(parse(materialized_simplified.as_bytes()), conflict);
// If the conflict is resolved, we get a normal merge back to indicate that.
let expected_file_id = testutils::write_file(store, path, "resolved 1\nline 2\nresolved 3\n");
assert_eq!(
parse(b"resolved 1\nline 2\nresolved 3\n"),
Merge::normal(expected_file_id)
);
// If the conflict is partially resolved, we get a new conflict back.
// This should work with both the simplified and unsimplified conflict.
let new_conflict = parse(indoc! {b"
resolved 1
line 2
<<<<<<< Conflict 2 of 2
+++++++ Contents of side #1
edited left 3
%%%%%%% Changes from base #1 to side #2
edited line 3
%%%%%%% Changes from base #2 to side #3
-edited line 3
+edited right 3
>>>>>>> Conflict 2 of 2 ends
"});
let new_simplified_conflict = parse(indoc! {b"
resolved 1
line 2
<<<<<<< Conflict 2 of 2
%%%%%%% Changes from base to side #1
-edited line 3
+edited left 3
+++++++ Contents of side #2
edited right 3
>>>>>>> Conflict 2 of 2 ends
"});
assert_ne!(new_conflict, conflict);
assert_ne!(new_simplified_conflict, conflict);
// Calculate expected new FileIds
let new_base_file_id =
testutils::write_file(store, path, "resolved 1\nline 2\nedited line 3\n");
let new_left_file_id =
testutils::write_file(store, path, "resolved 1\nline 2\nedited left 3\n");
let new_right_file_id =
testutils::write_file(store, path, "resolved 1\nline 2\nedited right 3\n");
assert_eq!(
new_conflict,
Merge::from_removes_adds(
vec![
Some(new_base_file_id.clone()),
Some(new_base_file_id.clone())
],
vec![
Some(new_left_file_id.clone()),
Some(new_base_file_id.clone()),
Some(new_right_file_id.clone())
]
)
);
assert_eq!(
new_simplified_conflict,
Merge::from_removes_adds(
vec![Some(base_file_id.clone()), Some(new_base_file_id.clone())],
vec![
Some(new_left_file_id.clone()),
Some(base_file_id.clone()),
Some(new_right_file_id.clone())
]
)
);
}
fn materialize_conflict_string(
store: &Store,
path: &RepoPath,
conflict: &Merge<Option<FileId>>,
conflict_marker_style: ConflictMarkerStyle,
) -> String {
let contents = extract_as_single_hunk(conflict, store, path)
.block_on()
.unwrap();
String::from_utf8(materialize_merge_result_to_bytes(&contents, conflict_marker_style).into())
.unwrap()
}