public void TestListDigests()
{
CacheStorageFiles cacheStorageFiles =
new CacheStorageFiles(temporaryFolder.NewFolder().ToPath());
CacheStorageReader cacheStorageReader = new CacheStorageReader(cacheStorageFiles);
// Creates test layer directories.
Files.CreateDirectories(cacheStorageFiles.GetLayersDirectory().Resolve(layerDigest1.GetHash()));
Files.CreateDirectories(cacheStorageFiles.GetLayersDirectory().Resolve(layerDigest2.GetHash()));
// Checks that layer directories created are all listed.
Assert.AreEqual(
new HashSet <DescriptorDigest>(new[] { layerDigest1, layerDigest2 }),
cacheStorageReader.FetchDigests());
// Checks that non-digest directories means the cache is corrupted.
Files.CreateDirectory(cacheStorageFiles.GetLayersDirectory().Resolve("not a hash"));
try
{
cacheStorageReader.FetchDigests();
Assert.Fail("Listing digests should have failed");
}
catch (CacheCorruptedException ex)
{
Assert.That(
ex.Message, Does.StartWith("Found non-digest file in layers directory"));
Assert.IsInstanceOf <DigestException>(ex.InnerException);
}
}
public void TestGetLayersDirectory()
{
Assert.AreEqual(
Paths.Get("cache", "directory", "layers"), TEST_CACHE_STORAGE_FILES.GetLayersDirectory());
}
