| package fs |
| |
| import ( |
| "github.com/dotcloud/docker/fake" |
| "io/ioutil" |
| "os" |
| "testing" |
| ) |
| |
| func TestLayersInit(t *testing.T) { |
| store := tempStore(t) |
| defer os.RemoveAll(store.Root) |
| // Root should exist |
| if _, err := os.Stat(store.Root); err != nil { |
| t.Fatal(err) |
| } |
| // List() should be empty |
| if l := store.List(); len(l) != 0 { |
| t.Fatalf("List() should return %d, not %d", 0, len(l)) |
| } |
| } |
| |
| func TestAddLayer(t *testing.T) { |
| store := tempStore(t) |
| defer os.RemoveAll(store.Root) |
| layer, err := store.AddLayer("foo", testArchive(t)) |
| if err != nil { |
| t.Fatal(err) |
| } |
| // Layer path should exist |
| if _, err := os.Stat(layer); err != nil { |
| t.Fatal(err) |
| } |
| // List() should return 1 layer |
| if l := store.List(); len(l) != 1 { |
| t.Fatalf("List() should return %d elements, not %d", 1, len(l)) |
| } |
| // Get("foo") should return the correct layer |
| if foo := store.Get("foo"); foo != layer { |
| t.Fatalf("get(\"foo\") should return '%d', not '%d'", layer, foo) |
| } |
| } |
| |
| func TestAddLayerDuplicate(t *testing.T) { |
| store := tempStore(t) |
| defer os.RemoveAll(store.Root) |
| if _, err := store.AddLayer("foobar123", testArchive(t)); err != nil { |
| t.Fatal(err) |
| } |
| if _, err := store.AddLayer("foobar123", testArchive(t)); err == nil { |
| t.Fatalf("Creating duplicate layer should fail") |
| } |
| } |
| |
| /* |
| * HELPER FUNCTIONS |
| */ |
| |
| func tempStore(t *testing.T) *LayerStore { |
| tmp, err := ioutil.TempDir("", "docker-fs-layerstore-") |
| if err != nil { |
| t.Fatal(err) |
| } |
| store, err := NewLayerStore(tmp) |
| if err != nil { |
| t.Fatal(err) |
| } |
| return store |
| } |
| |
| func testArchive(t *testing.T) Archive { |
| archive, err := fake.FakeTar() |
| if err != nil { |
| t.Fatal(err) |
| } |
| return archive |
| } |
