restic/backend/generic_test.go

126 lines
3.4 KiB
Go

package backend_test
import (
"fmt"
"io"
"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)
getReader func(backend.Type, backend.ID) (io.ReadCloser, error)
create func(backend.Type, []byte) (backend.ID, error)
createFrom func(backend.Type, io.Reader) (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) GetReader(t backend.Type, id backend.ID) (io.ReadCloser, error) {
return m.getReader(t, id)
}
func (m mockBackend) Create(t backend.Type, data []byte) (backend.ID, error) {
return m.create(t, data)
}
func (m mockBackend) CreateFrom(t backend.Type, r io.Reader) (backend.ID, error) {
return m.createFrom(t, r)
}
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)
}