private async Task VerifyWriteBytesIfContentMismatchedAsync(
FileContentTable fileContentTable,
string targetRelPath,
string contents,
bool expectWrite,
VersionedFileIdentityAndContentInfo?originalDestinationInfo = null)
{
byte[] encoded = Encoding.UTF8.GetBytes(contents);
ContentHash contentsHash = ContentHashingUtilities.HashBytes(encoded);
ConditionalUpdateResult result =
await fileContentTable.WriteBytesIfContentMismatchedAsync(GetFullPath(targetRelPath), encoded, contentsHash);
XAssert.AreEqual(expectWrite, !result.Elided, "Decision to write was incorrect.");
FileContentTableExtensions.VersionedFileIdentityAndContentInfoWithOrigin targetInfo =
await fileContentTable.GetAndRecordContentHashAsync(GetFullPath(targetRelPath));
XAssert.AreEqual(FileContentTableExtensions.ContentHashOrigin.Cached, targetInfo.Origin, "Write didn't record the target hash.");
XAssert.AreEqual(
contentsHash,
targetInfo.VersionedFileIdentityAndContentInfo.FileContentInfo.Hash,
"Hashes should match after the write.");
XAssert.AreEqual(contents, File.ReadAllText(GetFullPath(targetRelPath)), "Hashes match but content does not");
if (originalDestinationInfo.HasValue)
{
VerifyDestinationVersion(result, originalDestinationInfo.Value);
}
}