public static ValueTask <Commit?> ReadCommitAsync(this IChasmRepository chasmRepository, CommitId?commitId, CancellationToken cancellationToken) { if (chasmRepository == null) { throw new ArgumentNullException(nameof(chasmRepository)); } return(commitId.HasValue ? chasmRepository.ReadCommitAsync(commitId.Value, cancellationToken) : default);
private static async Task TestRepository(IChasmRepository repository) { var g = Guid.NewGuid(); var data = g.ToByteArray(); var sha = Sha1.Hash(data); // Unknown SHA var usha = Sha1.Hash(Guid.NewGuid().ToByteArray()); var usha2 = Sha1.Hash(Guid.NewGuid().ToByteArray()); // Blob await repository.WriteObjectAsync(sha, new ArraySegment <byte>(data), false, default); var rdata = (await repository.ReadObjectAsync(sha, default)); Assert.True(rdata.HasValue); Assert.Equal(16, rdata.Value.Length); Assert.Equal(g, rdata.Value.Span.NonPortableCast <byte, Guid>()[0]); var urdata = await repository.ReadObjectAsync(usha, default); Assert.False(urdata.HasValue); // Tree var tree = new TreeNodeMap( new TreeNode("firstItem", NodeKind.Blob, sha), new TreeNode("secondItem", NodeKind.Blob, sha) ); var treeId = await repository.WriteTreeAsync(tree, default); var rtree = await repository.ReadTreeAsync(treeId, default); Assert.True(rtree.HasValue); Assert.Equal(tree, rtree.Value); var urtree = await repository.ReadTreeAsync(new TreeId(usha), default); Assert.False(urtree.HasValue); // Commit var commit = new Commit( new CommitId?(), treeId, new Audit("User1", DateTimeOffset.UtcNow.AddDays(-1)), new Audit("User2", DateTimeOffset.UtcNow), "Initial commit" ); var commitId = await repository.WriteCommitAsync(commit, default); var rcommit = await repository.ReadCommitAsync(commitId, default); Assert.True(rcommit.HasValue); Assert.Equal(commit, rcommit); var urcommit = await repository.ReadCommitAsync(new CommitId(usha), default); Assert.False(urcommit.HasValue); // CommitRef var commitRefName = Guid.NewGuid().ToString("N"); var commitRef = new CommitRef("production", commitId); await repository.WriteCommitRefAsync(null, commitRefName, commitRef, default); var rcommitRef = await repository.ReadCommitRefAsync(commitRefName, commitRef.Branch, default); Assert.True(rcommit.HasValue); Assert.Equal(commitRef, rcommitRef); var urcommitRef = await repository.ReadCommitRefAsync(commitRefName + "_", commitRef.Branch, default); Assert.False(urcommit.HasValue); await Assert.ThrowsAsync <ChasmConcurrencyException>(() => repository.WriteCommitRefAsync(null, commitRefName, new CommitRef("production", new CommitId(usha)), default)); await Assert.ThrowsAsync <ChasmConcurrencyException>(() => repository.WriteCommitRefAsync(new CommitId(usha2), commitRefName, new CommitRef("production", new CommitId(usha)), default)); await repository.WriteCommitRefAsync(null, commitRefName, new CommitRef("dev", commitId), default); await repository.WriteCommitRefAsync(null, commitRefName, new CommitRef("staging", new CommitId(usha)), default); await repository.WriteCommitRefAsync(null, commitRefName + "_1", new CommitRef("production", new CommitId(usha)), default); var names = await repository.GetNamesAsync(default);