func checkBlobDescriptorClear(t *testing.T, ctx context.Context, provider BlobDescriptorCacheProvider) {
localDigest := digest.Digest("sha384:abc")
expected := distribution.Descriptor{
Digest: "sha256:abc",
Size: 10,
MediaType: "application/octet-stream"}
cache, err := provider.RepositoryScoped("foo/bar")
if err != nil {
t.Fatalf("unexpected error getting scoped cache: %v", err)
}
if err := cache.SetDescriptor(ctx, localDigest, expected); err != nil {
t.Fatalf("error setting descriptor: %v", err)
}
desc, err := cache.Stat(ctx, localDigest)
if err != nil {
t.Fatalf("unexpected error statting fake2:abc: %v", err)
}
if expected != desc {
t.Fatalf("unexpected descriptor: %#v != %#v", expected, desc)
}
err = cache.Clear(ctx, localDigest)
if err != nil {
t.Fatalf("unexpected error deleting descriptor")
}
nonExistantDigest := digest.Digest("sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
err = cache.Clear(ctx, nonExistantDigest)
if err == nil {
t.Fatalf("expected error deleting unknown descriptor")
}
}
func checkBlobDescriptorCacheSetAndRead(t *testing.T, ctx context.Context, provider BlobDescriptorCacheProvider) {
localDigest := digest.Digest("sha384:abc")
expected := distribution.Descriptor{
Digest: "sha256:abc",
Size: 10,
MediaType: "application/octet-stream"}
cache, err := provider.RepositoryScoped("foo/bar")
if err != nil {
t.Fatalf("unexpected error getting scoped cache: %v", err)
}
if err := cache.SetDescriptor(ctx, localDigest, expected); err != nil {
t.Fatalf("error setting descriptor: %v", err)
}
desc, err := cache.Stat(ctx, localDigest)
if err != nil {
t.Fatalf("unexpected error statting fake2:abc: %v", err)
}
if expected != desc {
t.Fatalf("unexpected descriptor: %#v != %#v", expected, desc)
}
// also check that we set the canonical key ("fake:abc")
desc, err = cache.Stat(ctx, localDigest)
if err != nil {
t.Fatalf("descriptor not returned for canonical key: %v", err)
}
if expected != desc {
t.Fatalf("unexpected descriptor: %#v != %#v", expected, desc)
}
// ensure that global gets extra descriptor mapping
desc, err = provider.Stat(ctx, localDigest)
if err != nil {
t.Fatalf("expected blob unknown in global cache: %v, %v", err, desc)
}
if desc != expected {
t.Fatalf("unexpected descriptor: %#v != %#v", expected, desc)
}
// get at it through canonical descriptor
desc, err = provider.Stat(ctx, expected.Digest)
if err != nil {
t.Fatalf("unexpected error checking glboal descriptor: %v", err)
}
if desc != expected {
t.Fatalf("unexpected descriptor: %#v != %#v", expected, desc)
}
// now, we set the repo local mediatype to something else and ensure it
// doesn't get changed in the provider cache.
expected.MediaType = "application/json"
if err := cache.SetDescriptor(ctx, localDigest, expected); err != nil {
t.Fatalf("unexpected error setting descriptor: %v", err)
}
desc, err = cache.Stat(ctx, localDigest)
if err != nil {
t.Fatalf("unexpected error getting descriptor: %v", err)
}
if desc != expected {
t.Fatalf("unexpected descriptor: %#v != %#v", desc, expected)
}
desc, err = provider.Stat(ctx, localDigest)
if err != nil {
t.Fatalf("unexpected error getting global descriptor: %v", err)
}
expected.MediaType = "application/octet-stream" // expect original mediatype in global
if desc != expected {
t.Fatalf("unexpected descriptor: %#v != %#v", desc, expected)
}
}