libgit2dart/test/merge_test.dart

510 lines
14 KiB
Dart

// ignore_for_file: unnecessary_string_escapes
import 'dart:ffi';
import 'dart:io';
import 'package:libgit2dart/libgit2dart.dart';
import 'package:path/path.dart' as p;
import 'package:test/test.dart';
import 'helpers/util.dart';
void main() {
late Repository repo;
late Directory tmpDir;
setUp(() {
tmpDir = setupRepo(Directory(p.join('test', 'assets', 'merge_repo')));
repo = Repository.open(tmpDir.path);
});
tearDown(() {
tmpDir.deleteSync(recursive: true);
});
group('Merge', () {
group('analysis', () {
test('is up to date when no reference is provided', () {
final analysis = Merge.analysis(repo: repo, theirHead: repo['c68ff54']);
expect(analysis.result, {GitMergeAnalysis.upToDate});
expect(analysis.mergePreference, GitMergePreference.none);
expect(repo.status, isEmpty);
});
test('is up to date for provided ref', () {
final analysis = Merge.analysis(
repo: repo,
theirHead: repo['c68ff54'],
ourRef: 'refs/tags/v0.1',
);
expect(analysis.result, {GitMergeAnalysis.upToDate});
expect(repo.status, isEmpty);
});
test('is fast forward', () {
final ffBranch = Branch.create(
repo: repo,
name: 'ff-branch',
target: Commit.lookup(repo: repo, oid: repo['f17d0d4']),
);
final analysis = Merge.analysis(
repo: repo,
theirHead: repo['6cbc22e'],
ourRef: 'refs/heads/${ffBranch.name}',
);
expect(
analysis.result,
{GitMergeAnalysis.fastForward, GitMergeAnalysis.normal},
);
expect(repo.status, isEmpty);
});
test('is not fast forward and there is no conflicts', () {
final analysis = Merge.analysis(repo: repo, theirHead: repo['5aecfa0']);
expect(analysis.result, {GitMergeAnalysis.normal});
expect(repo.status, isEmpty);
});
});
test('writes conflicts to index', () {
final conflictBranch = Branch.lookup(repo: repo, name: 'conflict-branch');
final index = repo.index;
final analysis = Merge.analysis(
repo: repo,
theirHead: conflictBranch.target,
);
expect(analysis.result, {GitMergeAnalysis.normal});
Merge.commit(
repo: repo,
commit: AnnotatedCommit.lookup(repo: repo, oid: conflictBranch.target),
);
expect(index.hasConflicts, true);
expect(index.conflicts.length, 1);
expect(repo.state, GitRepositoryState.merge);
expect(
repo.status,
{
'conflict_file': {GitStatus.conflicted}
},
);
final conflictedFile = index.conflicts['conflict_file']!;
expect(conflictedFile.ancestor, null);
expect(conflictedFile.our?.path, 'conflict_file');
expect(conflictedFile.their?.path, 'conflict_file');
index.add('conflict_file');
index.write();
expect(index.hasConflicts, false);
expect(index.conflicts, isEmpty);
expect(
repo.status,
{
'conflict_file': {GitStatus.indexModified}
},
);
});
group('merge file from index', () {
test('merges without ancestor', () {
const diffExpected = """
\<<<<<<< conflict_file
master conflict edit
=======
conflict branch edit
>>>>>>> conflict_file
""";
Merge.commit(
repo: repo,
commit: AnnotatedCommit.lookup(
repo: repo,
oid: Branch.lookup(repo: repo, name: 'conflict-branch').target,
),
);
final conflictedFile = repo.index.conflicts['conflict_file']!;
final diff = Merge.fileFromIndex(
repo: repo,
ancestor: null,
ours: conflictedFile.our!,
theirs: conflictedFile.their!,
);
expect(diff, diffExpected);
});
test('merges with ancestor', () {
const diffExpected = """
\<<<<<<< feature_file
Feature edit on feature branch
=======
Another feature edit
>>>>>>> feature_file
""";
Checkout.reference(repo: repo, name: 'refs/heads/feature');
repo.setHead('refs/heads/feature');
Merge.commit(
repo: repo,
commit: AnnotatedCommit.lookup(
repo: repo,
oid: Branch.lookup(repo: repo, name: 'ancestor-conflict').target,
),
);
final conflictedFile = repo.index.conflicts['feature_file']!;
final diff = Merge.fileFromIndex(
repo: repo,
ancestor: conflictedFile.ancestor,
ours: conflictedFile.our!,
theirs: conflictedFile.their!,
);
expect(diff, diffExpected);
});
test('merges with provided options', () {
const diffExpected = """
\<<<<<<< ours
Feature edit on feature branch
||||||| ancestor
Feature edit
=======
Another feature edit
>>>>>>> theirs
""";
Checkout.reference(repo: repo, name: 'refs/heads/feature');
repo.setHead('refs/heads/feature');
Merge.commit(
repo: repo,
commit: AnnotatedCommit.lookup(
repo: repo,
oid: Branch.lookup(repo: repo, name: 'ancestor-conflict').target,
),
);
final conflictedFile = repo.index.conflicts['feature_file']!;
final diff = Merge.fileFromIndex(
repo: repo,
ancestor: conflictedFile.ancestor,
ancestorLabel: 'ancestor',
ours: conflictedFile.our!,
oursLabel: 'ours',
theirs: conflictedFile.their!,
theirsLabel: 'theirs',
flags: {GitMergeFileFlag.styleDiff3},
);
expect(diff, diffExpected);
});
test('merges with provided merge favor', () {
Merge.commit(
repo: repo,
commit: AnnotatedCommit.lookup(
repo: repo,
oid: Branch.lookup(repo: repo, name: 'conflict-branch').target,
),
favor: GitMergeFileFavor.ours,
);
expect(repo.index.conflicts, isEmpty);
expect(
File(p.join(repo.workdir, 'conflict_file')).readAsStringSync(),
'master conflict edit\n',
);
});
test('throws when error occurs', () {
expect(
() => Merge.fileFromIndex(
repo: repo,
ancestor: null,
ours: IndexEntry(nullptr),
theirs: IndexEntry(nullptr),
),
throwsA(isA<LibGit2Error>()),
);
});
});
group('merge file', () {
test('merges file with default values', () {
const diffExpected = """
\<<<<<<< file.txt
ours content
=======
theirs content
>>>>>>> file.txt
""";
final diff = Merge.file(
ancestor: '',
ours: 'ours content',
theirs: 'theirs content',
);
expect(diff, diffExpected);
});
test('merges file with provided values', () {
const diffExpected = """
\<<<<<<< ours.txt
ours content
||||||| ancestor.txt
ancestor content
=======
theirs content
>>>>>>> theirs.txt
""";
final diff = Merge.file(
ancestor: 'ancestor content',
ancestorLabel: 'ancestor.txt',
ours: 'ours content',
oursLabel: 'ours.txt',
theirs: 'theirs content',
theirsLabel: 'theirs.txt',
flags: {GitMergeFileFlag.styleDiff3},
);
expect(diff, diffExpected);
});
test('merges file with provided favor', () {
const diffExpected = 'ours content';
final diff = Merge.file(
ancestor: 'ancestor content',
ours: 'ours content',
theirs: 'theirs content',
favor: GitMergeFileFavor.ours,
);
expect(diff, diffExpected);
});
});
group('merge commits', () {
test('merges with default values', () {
final theirCommit = Commit.lookup(repo: repo, oid: repo['5aecfa0']);
final mergeIndex = Merge.commits(
repo: repo,
ourCommit: Commit.lookup(repo: repo, oid: repo['1490545']),
theirCommit: theirCommit,
);
expect(mergeIndex.conflicts, isEmpty);
final mergeCommitsTree = mergeIndex.writeTree(repo);
Merge.commit(
repo: repo,
commit: AnnotatedCommit.lookup(repo: repo, oid: theirCommit.oid),
);
expect(repo.index.conflicts, isEmpty);
final mergeTree = repo.index.writeTree();
expect(mergeCommitsTree == mergeTree, true);
});
test('merges with provided favor', () {
final mergeIndex = Merge.commits(
repo: repo,
ourCommit: Commit.lookup(repo: repo, oid: repo['1490545']),
theirCommit: Commit.lookup(repo: repo, oid: repo['5aecfa0']),
favor: GitMergeFileFavor.ours,
);
expect(mergeIndex.conflicts, isEmpty);
});
test('merges with provided merge and file flags', () {
final mergeIndex = Merge.commits(
repo: repo,
ourCommit: Commit.lookup(repo: repo, oid: repo['1490545']),
theirCommit: Commit.lookup(repo: repo, oid: repo['5aecfa0']),
mergeFlags: {
GitMergeFlag.findRenames,
GitMergeFlag.noRecursive,
},
fileFlags: {
GitMergeFileFlag.ignoreWhitespace,
GitMergeFileFlag.ignoreWhitespaceEOL,
GitMergeFileFlag.styleMerge,
},
);
expect(mergeIndex.conflicts, isEmpty);
});
test('throws when error occurs', () {
expect(
() => Merge.commits(
repo: repo,
ourCommit: Commit(nullptr),
theirCommit: Commit(nullptr),
),
throwsA(isA<LibGit2Error>()),
);
});
});
test('finds merge base for two commits', () {
expect(
Merge.base(repo: repo, commits: [repo['1490545'], repo['5aecfa0']]).sha,
'fc38877b2552ab554752d9a77e1f48f738cca79b',
);
expect(
Merge.base(repo: repo, commits: [repo['f17d0d4'], repo['5aecfa0']]).sha,
'f17d0d48eae3aa08cecf29128a35e310c97b3521',
);
});
test('finds merge base for many commits', () {
expect(
Merge.base(
repo: repo,
commits: [repo['1490545'], repo['0e409d6'], repo['5aecfa0']],
).sha,
'fc38877b2552ab554752d9a77e1f48f738cca79b',
);
expect(
Merge.base(
repo: repo,
commits: [repo['f17d0d4'], repo['5aecfa0'], repo['0e409d6']],
).sha,
'f17d0d48eae3aa08cecf29128a35e310c97b3521',
);
});
test('throws when trying to find merge base for invalid oid', () {
expect(
() => Merge.base(
repo: repo,
commits: [repo['0' * 40], repo['5aecfa0']],
),
throwsA(isA<LibGit2Error>()),
);
expect(
() => Merge.base(
repo: repo,
commits: [repo['0' * 40], repo['5aecfa0'], repo['0e409d6']],
),
throwsA(isA<LibGit2Error>()),
);
});
test('finds octopus merge base', () {
expect(
Merge.octopusBase(
repo: repo,
commits: [repo['1490545'], repo['0e409d6'], repo['5aecfa0']],
).sha,
'fc38877b2552ab554752d9a77e1f48f738cca79b',
);
});
test('throws when trying to find octopus merge base for invalid oid', () {
expect(
() => Merge.octopusBase(
repo: repo,
commits: [repo['0' * 40], repo['5aecfa0'], repo['0e409d6']],
),
throwsA(isA<LibGit2Error>()),
);
});
group('merge trees', () {
test('merges with default values', () {
final theirCommit = Commit.lookup(repo: repo, oid: repo['5aecfa0']);
final ourCommit = Commit.lookup(repo: repo, oid: repo['1490545']);
final baseCommit = Commit.lookup(
repo: repo,
oid: Merge.base(
repo: repo,
commits: [ourCommit.oid, theirCommit.oid],
),
);
final mergeIndex = Merge.trees(
repo: repo,
ancestorTree: baseCommit.tree,
ourTree: ourCommit.tree,
theirTree: theirCommit.tree,
);
expect(mergeIndex.conflicts, isEmpty);
final mergeTreesTree = mergeIndex.writeTree(repo);
repo.setHead(ourCommit.oid);
Merge.commit(
repo: repo,
commit: AnnotatedCommit.lookup(repo: repo, oid: theirCommit.oid),
);
expect(repo.index.conflicts, isEmpty);
final mergeTree = repo.index.writeTree();
expect(mergeTreesTree == mergeTree, true);
});
test('merges with provided favor', () {
final theirCommit = Commit.lookup(repo: repo, oid: repo['5aecfa0']);
final ourCommit = Commit.lookup(repo: repo, oid: repo['1490545']);
final baseCommit = Commit.lookup(
repo: repo,
oid: Merge.base(
repo: repo,
commits: [ourCommit.oid, theirCommit.oid],
),
);
final mergeIndex = Merge.trees(
repo: repo,
ancestorTree: baseCommit.tree,
ourTree: ourCommit.tree,
theirTree: theirCommit.tree,
favor: GitMergeFileFavor.ours,
);
expect(mergeIndex.conflicts, isEmpty);
});
test('throws when error occurs', () {
expect(
() => Merge.trees(
repo: Repository(nullptr),
ancestorTree: Tree(nullptr),
ourTree: Tree(nullptr),
theirTree: Tree(nullptr),
),
throwsA(isA<LibGit2Error>()),
);
});
});
test('cherry-picks commit', () {
Merge.cherryPick(
repo: repo,
commit: Commit.lookup(repo: repo, oid: repo['5aecfa0']),
);
expect(repo.state, GitRepositoryState.cherrypick);
expect(repo.message, 'add another feature file\n');
expect(repo.index.conflicts, isEmpty);
// pretend we've done commit
repo.removeMessage();
expect(() => repo.message, throwsA(isA<LibGit2Error>()));
});
test('throws when error occurs', () {
expect(
() => Merge.cherryPick(repo: repo, commit: Commit(nullptr)),
throwsA(isA<LibGit2Error>()),
);
});
});
}