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);
