package backend_test import ( "fmt" "path/filepath" "reflect" "runtime" "testing" "github.com/restic/restic/backend" ) // assert fails the test if the condition is false. func assert(tb testing.TB, condition bool, msg string, v ...interface{}) { if !condition { _, file, line, _ := runtime.Caller(1) fmt.Printf("\033[31m%s:%d: "+msg+"\033[39m\n\n", append([]interface{}{filepath.Base(file), line}, v...)...) tb.FailNow() } } // ok fails the test if an err is not nil. func ok(tb testing.TB, err error) { if err != nil { _, file, line, _ := runtime.Caller(1) fmt.Printf("\033[31m%s:%d: unexpected error: %s\033[39m\n\n", filepath.Base(file), line, err.Error()) tb.FailNow() } } // equals fails the test if exp is not equal to act. func equals(tb testing.TB, exp, act interface{}) { if !reflect.DeepEqual(exp, act) { _, file, line, _ := runtime.Caller(1) fmt.Printf("\033[31m%s:%d:\n\n\texp: %#v\n\n\tgot: %#v\033[39m\n\n", filepath.Base(file), line, exp, act) tb.FailNow() } } func str2id(s string) backend.ID { id, err := backend.ParseID(s) if err != nil { panic(err) } return id } type mockBackend struct { list func(backend.Type) (backend.IDs, error) get func(backend.Type, backend.ID) ([]byte, error) create func(backend.Type, []byte) (backend.ID, error) test func(backend.Type, backend.ID) (bool, error) remove func(backend.Type, backend.ID) error close func() error } func (m mockBackend) List(t backend.Type) (backend.IDs, error) { return m.list(t) } func (m mockBackend) Get(t backend.Type, id backend.ID) ([]byte, error) { return m.get(t, id) } func (m mockBackend) Create(t backend.Type, data []byte) (backend.ID, error) { return m.create(t, data) } func (m mockBackend) Test(t backend.Type, id backend.ID) (bool, error) { return m.test(t, id) } func (m mockBackend) Remove(t backend.Type, id backend.ID) error { return m.remove(t, id) } func (m mockBackend) Close() error { return m.close() } var samples = backend.IDs{ str2id("20bdc1402a6fc9b633aaffffffffffffffffffffffffffffffffffffffffffff"), str2id("20bdc1402a6fc9b633ccd578c4a92d0f4ef1a457fa2e16c596bc73fb409d6cc0"), str2id("20bdc1402a6fc9b633ffffffffffffffffffffffffffffffffffffffffffffff"), str2id("20ff988befa5fc40350f00d531a767606efefe242c837aaccb80673f286be53d"), str2id("326cb59dfe802304f96ee9b5b9af93bdee73a30f53981e5ec579aedb6f1d0f07"), str2id("86b60b9594d1d429c4aa98fa9562082cabf53b98c7dc083abe5dae31074dd15a"), str2id("96c8dbe225079e624b5ce509f5bd817d1453cd0a85d30d536d01b64a8669aeae"), str2id("fa31d65b87affcd167b119e9d3d2a27b8236ca4836cb077ed3e96fcbe209b792"), } func TestPrefixLength(t *testing.T) { list := samples m := mockBackend{} m.list = func(t backend.Type) (backend.IDs, error) { return list, nil } l, err := backend.PrefixLength(m, backend.Snapshot) ok(t, err) equals(t, 10, l) list = samples[:3] l, err = backend.PrefixLength(m, backend.Snapshot) ok(t, err) equals(t, 10, l) list = samples[3:] l, err = backend.PrefixLength(m, backend.Snapshot) ok(t, err) equals(t, 4, l) }