forked from TrueCloudLab/restic
136 lines
3.6 KiB
Go
136 lines
3.6 KiB
Go
package backend_test
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import (
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"fmt"
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"io"
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"path/filepath"
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"reflect"
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"runtime"
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"testing"
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"github.com/restic/restic/backend"
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)
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// assert fails the test if the condition is false.
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func assert(tb testing.TB, condition bool, msg string, v ...interface{}) {
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if !condition {
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_, file, line, _ := runtime.Caller(1)
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fmt.Printf("\033[31m%s:%d: "+msg+"\033[39m\n\n", append([]interface{}{filepath.Base(file), line}, v...)...)
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tb.FailNow()
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}
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}
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// ok fails the test if an err is not nil.
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func ok(tb testing.TB, err error) {
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if err != nil {
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_, file, line, _ := runtime.Caller(1)
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fmt.Printf("\033[31m%s:%d: unexpected error: %s\033[39m\n\n", filepath.Base(file), line, err.Error())
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tb.FailNow()
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}
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}
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// equals fails the test if exp is not equal to act.
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func equals(tb testing.TB, exp, act interface{}) {
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if !reflect.DeepEqual(exp, act) {
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_, file, line, _ := runtime.Caller(1)
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fmt.Printf("\033[31m%s:%d:\n\n\texp: %#v\n\n\tgot: %#v\033[39m\n\n", filepath.Base(file), line, exp, act)
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tb.FailNow()
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}
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}
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func str2id(s string) backend.ID {
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id, err := backend.ParseID(s)
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if err != nil {
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panic(err)
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}
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return id
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}
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type mockBackend struct {
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list func(backend.Type, <-chan struct{}) <-chan string
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get func(backend.Type, backend.ID) ([]byte, error)
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getReader func(backend.Type, backend.ID) (io.ReadCloser, error)
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create func(backend.Type, []byte) (backend.ID, error)
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createFrom func(backend.Type, io.Reader) (backend.ID, error)
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test func(backend.Type, backend.ID) (bool, error)
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remove func(backend.Type, backend.ID) error
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close func() error
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}
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func (m mockBackend) List(t backend.Type, done <-chan struct{}) <-chan string {
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return m.list(t, done)
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}
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func (m mockBackend) Get(t backend.Type, id backend.ID) ([]byte, error) {
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return m.get(t, id)
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}
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func (m mockBackend) GetReader(t backend.Type, id backend.ID) (io.ReadCloser, error) {
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return m.getReader(t, id)
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}
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func (m mockBackend) Create(t backend.Type, data []byte) (backend.ID, error) {
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return m.create(t, data)
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}
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func (m mockBackend) CreateFrom(t backend.Type, r io.Reader) (backend.ID, error) {
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return m.createFrom(t, r)
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}
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func (m mockBackend) Test(t backend.Type, id backend.ID) (bool, error) {
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return m.test(t, id)
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}
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func (m mockBackend) Remove(t backend.Type, id backend.ID) error {
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return m.remove(t, id)
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}
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func (m mockBackend) Close() error {
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return m.close()
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}
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var samples = backend.IDs{
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str2id("20bdc1402a6fc9b633aaffffffffffffffffffffffffffffffffffffffffffff"),
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str2id("20bdc1402a6fc9b633ccd578c4a92d0f4ef1a457fa2e16c596bc73fb409d6cc0"),
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str2id("20bdc1402a6fc9b633ffffffffffffffffffffffffffffffffffffffffffffff"),
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str2id("20ff988befa5fc40350f00d531a767606efefe242c837aaccb80673f286be53d"),
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str2id("326cb59dfe802304f96ee9b5b9af93bdee73a30f53981e5ec579aedb6f1d0f07"),
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str2id("86b60b9594d1d429c4aa98fa9562082cabf53b98c7dc083abe5dae31074dd15a"),
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str2id("96c8dbe225079e624b5ce509f5bd817d1453cd0a85d30d536d01b64a8669aeae"),
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str2id("fa31d65b87affcd167b119e9d3d2a27b8236ca4836cb077ed3e96fcbe209b792"),
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}
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func TestPrefixLength(t *testing.T) {
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list := samples
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m := mockBackend{}
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m.list = func(t backend.Type, done <-chan struct{}) <-chan string {
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ch := make(chan string)
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go func() {
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defer close(ch)
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for _, id := range list {
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select {
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case ch <- id.String():
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case <-done:
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return
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}
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}
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}()
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return ch
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}
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l, err := backend.PrefixLength(m, backend.Snapshot)
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ok(t, err)
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equals(t, 19, l)
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list = samples[:3]
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l, err = backend.PrefixLength(m, backend.Snapshot)
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ok(t, err)
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equals(t, 19, l)
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list = samples[3:]
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l, err = backend.PrefixLength(m, backend.Snapshot)
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ok(t, err)
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equals(t, 8, l)
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}
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