private static DistributedEvictionSettings WithMockDistributedLocationStore(MockDistributedLocationStore mock)
{
return(new DistributedEvictionSettings(
(context, contentHashesWithInfo, cts, urgencyHint) => null,
locationStoreBatchSize: 42,
replicaCreditInMinutes: null,
distributedStore: mock));
}
public async Task TestSelfCheckAsync()
{
var mockDistributedLocationStore = new MockDistributedLocationStore();
using (var testDirectory = new DisposableDirectory(FileSystem))
{
var context = new Context(Logger);
var store = CreateStore(testDirectory, Settings, WithMockDistributedLocationStore(mockDistributedLocationStore));
await store.StartupAsync(context).ShouldBeSuccess();
var result = await store.SelfCheckContentDirectoryAsync(context, CancellationToken.None).ShouldBeSuccess();
result.Value.TotalProcessedFiles.Should().Be(0, "TotalProcessedFiles should be 0 for an empty store.");
// Running self check, but it should be up-to-date
result = await store.SelfCheckContentDirectoryAsync(context, CancellationToken.None).ShouldBeSuccess();
result.Value.TotalProcessedFiles.Should().Be(-1, "SelfCheck should be skipped due to up-to-date check.");
// Now we're going to mess up with the content by putting the file and changing it on disk.
var putResult = await store.PutRandomAsync(context, ValueSize).ShouldBeSuccess();
var currentSize = store.ContentDirectorySize();
var pathInCache = store.GetPrimaryPathFor(putResult.ContentHash);
FileSystem.WriteAllText(pathInCache, "Definitely wrong content");
// Moving the time forward to make self check is not up-to-date.
Clock.UtcNow = Clock.UtcNow + TimeSpan.FromDays(2);
result = await store.SelfCheckContentDirectoryAsync(context, CancellationToken.None).ShouldBeSuccess();
result.Value.InvalidFiles.Should().Be(1);
// An invalid file should be removed from:
// 1. File system
FileSystem.FileExists(pathInCache).Should().BeFalse("The store should delete the file with invalid content.");
// 2. Content directory
store.ContentDirectorySize().Should().Be(currentSize - ValueSize);
// 3. Quota Keeper
store.QuotaKeeperSize().Should().Be(currentSize - ValueSize);
// 4. The content should be removed from distributed store.
mockDistributedLocationStore.UnregisteredHashes.Should().NotBeNullOrEmpty();
}
}