public async Task TestWriteUncompressedWithLayerEntries_retrieveByLayerEntriesAsync()
{
LayersCache cache = LayersCache.WithDirectory(temporaryFolder.NewFolder().ToPath());
await VerifyIsLayer1Async(await cache.WriteUncompressedLayerAsync(layerBlob1, layerEntries1).ConfigureAwait(false)).ConfigureAwait(false);
Maybe <CachedLayer> layer = await cache.RetrieveAsync(layerEntries1).ConfigureAwait(false);
await VerifyIsLayer1Async(layer.OrElseThrow(() => new AssertionException(""))).ConfigureAwait(false);
Assert.IsFalse(cache.Retrieve(layerDigest2).IsPresent());
// A source file modification results in the cached layer to be out-of-date and not retrieved.
Files.SetLastModifiedTime(
layerEntries1[0].SourceFile, FileTime.From(SystemClock.Instance.GetCurrentInstant() + Duration.FromSeconds(1)));
Maybe <CachedLayer> outOfDateLayer = await cache.RetrieveAsync(layerEntries1).ConfigureAwait(false);
Assert.IsFalse(outOfDateLayer.IsPresent());
}
public async Task TestGenerateSelector_fileModifiedAsync()
{
SystemPath layerFile = temporaryFolder.NewFolder("testFolder").ToPath().Resolve("file");
Files.Write(layerFile, Encoding.UTF8.GetBytes("hello"));
Files.SetLastModifiedTime(layerFile, FileTime.From(Instant.FromUnixTimeSeconds(0)));
LayerEntry layerEntry = DefaultLayerEntry(layerFile, AbsoluteUnixPath.Get("/extraction/path"));
DescriptorDigest expectedSelector =
await GenerateSelectorAsync(ImmutableArray.Create(layerEntry)).ConfigureAwait(false);
// Verify that changing modified time generates a different selector
Files.SetLastModifiedTime(layerFile, FileTime.From(Instant.FromUnixTimeSeconds(1)));
Assert.AreNotEqual(
expectedSelector, await GenerateSelectorAsync(ImmutableArray.Create(layerEntry)).ConfigureAwait(false));
// Verify that changing modified time back generates same selector
Files.SetLastModifiedTime(layerFile, FileTime.From(Instant.FromUnixTimeSeconds(0)));
Assert.AreEqual(
expectedSelector,
await GenerateSelectorAsync(ImmutableArray.Create(layerEntry)).ConfigureAwait(false));
}