package metadata import ( "io/ioutil" "os" "testing" "github.com/docker/docker/layer" ) func TestV1IDService(t *testing.T) { tmpDir, err := ioutil.TempDir("", "v1-id-service-test") if err != nil { t.Fatalf("could not create temp dir: %v", err) } defer os.RemoveAll(tmpDir) metadataStore, err := NewFSMetadataStore(tmpDir) if err != nil { t.Fatalf("could not create metadata store: %v", err) } v1IDService := NewV1IDService(metadataStore) testVectors := []struct { registry string v1ID string layerID layer.DiffID }{ { registry: "registry1", v1ID: "f0cd5ca10b07f35512fc2f1cbf9a6cefbdb5cba70ac6b0c9e5988f4497f71937", layerID: layer.DiffID("sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"), }, { registry: "registry2", v1ID: "9e3447ca24cb96d86ebd5960cb34d1299b07e0a0e03801d90b9969a2c187dd6e", layerID: layer.DiffID("sha256:86e0e091d0da6bde2456dbb48306f3956bbeb2eae1b5b9a43045843f69fe4aaa"), }, { registry: "registry1", v1ID: "9e3447ca24cb96d86ebd5960cb34d1299b07e0a0e03801d90b9969a2c187dd6e", layerID: layer.DiffID("sha256:03f4658f8b782e12230c1783426bd3bacce651ce582a4ffb6fbbfa2079428ecb"), }, } // Set some associations for _, vec := range testVectors { err := v1IDService.Set(vec.v1ID, vec.registry, vec.layerID) if err != nil { t.Fatalf("error calling Set: %v", err) } } // Check the correct values are read back for _, vec := range testVectors { layerID, err := v1IDService.Get(vec.v1ID, vec.registry) if err != nil { t.Fatalf("error calling Get: %v", err) } if layerID != vec.layerID { t.Fatal("Get returned incorrect layer ID") } } // Test Get on a nonexistent entry _, err = v1IDService.Get("82379823067823853223359023576437723560923756b03560378f4497753917", "registry1") if err == nil { t.Fatal("expected error looking up nonexistent entry") } // Overwrite one of the entries and read it back err = v1IDService.Set(testVectors[0].v1ID, testVectors[0].registry, testVectors[1].layerID) if err != nil { t.Fatalf("error calling Set: %v", err) } layerID, err := v1IDService.Get(testVectors[0].v1ID, testVectors[0].registry) if err != nil { t.Fatalf("error calling Get: %v", err) } if layerID != testVectors[1].layerID { t.Fatal("Get returned incorrect layer ID") } }