restic/internal/backend/rest/rest_test.go

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package rest_test
import (
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"context"
"net"
"net/url"
"os"
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"os/exec"
"testing"
"time"
"github.com/restic/restic/internal/backend"
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"github.com/restic/restic/internal/backend/rest"
"github.com/restic/restic/internal/backend/test"
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"github.com/restic/restic/internal/restic"
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rtest "github.com/restic/restic/internal/test"
)
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func runRESTServer(ctx context.Context, t testing.TB, dir string) (*url.URL, func()) {
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srv, err := exec.LookPath("rest-server")
if err != nil {
t.Skip(err)
}
cmd := exec.CommandContext(ctx, srv, "--no-auth", "--path", dir)
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cmd.Stdout = os.Stdout
cmd.Stderr = os.Stdout
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if err := cmd.Start(); err != nil {
t.Fatal(err)
}
// wait until the TCP port is reachable
var success bool
for i := 0; i < 10; i++ {
time.Sleep(200 * time.Millisecond)
c, err := net.Dial("tcp", "localhost:8000")
if err != nil {
continue
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}
success = true
if err := c.Close(); err != nil {
t.Fatal(err)
}
}
if !success {
t.Fatal("unable to connect to rest server")
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return nil, nil
}
url, err := url.Parse("http://localhost:8000/restic-test/")
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if err != nil {
t.Fatal(err)
}
cleanup := func() {
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if err := cmd.Process.Kill(); err != nil {
t.Fatal(err)
}
// ignore errors, we've killed the process
_ = cmd.Wait()
}
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return url, cleanup
}
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func newTestSuite(_ context.Context, t testing.TB, url *url.URL, minimalData bool) *test.Suite[rest.Config] {
tr, err := backend.Transport(backend.TransportOptions{})
if err != nil {
t.Fatalf("cannot create transport for tests: %v", err)
}
return &test.Suite[rest.Config]{
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MinimalData: minimalData,
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// NewConfig returns a config for a new temporary backend that will be used in tests.
NewConfig: func() (rest.Config, error) {
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cfg := rest.NewConfig()
cfg.URL = url
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return cfg, nil
},
// CreateFn is a function that creates a temporary repository for the tests.
Create: func(cfg rest.Config) (restic.Backend, error) {
return rest.Create(context.TODO(), cfg, tr)
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},
// OpenFn is a function that opens a previously created temporary repository.
Open: func(cfg rest.Config) (restic.Backend, error) {
return rest.Open(cfg, tr)
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},
// CleanupFn removes data created during the tests.
Cleanup: func(cfg rest.Config) error {
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return nil
},
}
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}
func TestBackendREST(t *testing.T) {
defer func() {
if t.Skipped() {
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rtest.SkipDisallowed(t, "restic/backend/rest.TestBackendREST")
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}
}()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
dir := rtest.TempDir(t)
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serverURL, cleanup := runRESTServer(ctx, t, dir)
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defer cleanup()
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newTestSuite(ctx, t, serverURL, false).RunTests(t)
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}
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func TestBackendRESTExternalServer(t *testing.T) {
repostr := os.Getenv("RESTIC_TEST_REST_REPOSITORY")
if repostr == "" {
t.Skipf("environment variable %v not set", "RESTIC_TEST_REST_REPOSITORY")
}
cfg, err := rest.ParseConfig(repostr)
if err != nil {
t.Fatal(err)
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
newTestSuite(ctx, t, cfg.URL, true).RunTests(t)
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}
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func BenchmarkBackendREST(t *testing.B) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
dir := rtest.TempDir(t)
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serverURL, cleanup := runRESTServer(ctx, t, dir)
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defer cleanup()
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newTestSuite(ctx, t, serverURL, false).RunBenchmarks(t)
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}