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restic/internal/backend/gs/gs_test.go
Peter Schultz 758b44b9c0 gs: support authentication with access token
In the Google Cloud Storage backend, support specifying access tokens
directly, as an alternative to a credentials file. This is useful when
restic is used non-interactively by some other program that is already
authenticated and eliminates the need to store long lived credentials.

The access token is specified in the GOOGLE_ACCESS_TOKEN environment
variable and takes precedence over GOOGLE_APPLICATION_CREDENTIALS.
2020-07-22 16:23:03 +02:00

128 lines
3 KiB
Go

package gs_test
import (
"context"
"fmt"
"os"
"testing"
"time"
"github.com/restic/restic/internal/backend"
"github.com/restic/restic/internal/backend/gs"
"github.com/restic/restic/internal/backend/test"
"github.com/restic/restic/internal/errors"
"github.com/restic/restic/internal/restic"
rtest "github.com/restic/restic/internal/test"
)
func newGSTestSuite(t testing.TB) *test.Suite {
tr, err := backend.Transport(backend.TransportOptions{})
if err != nil {
t.Fatalf("cannot create transport for tests: %v", err)
}
return &test.Suite{
// do not use excessive data
MinimalData: true,
// NewConfig returns a config for a new temporary backend that will be used in tests.
NewConfig: func() (interface{}, error) {
gscfg, err := gs.ParseConfig(os.Getenv("RESTIC_TEST_GS_REPOSITORY"))
if err != nil {
return nil, err
}
cfg := gscfg.(gs.Config)
cfg.ProjectID = os.Getenv("RESTIC_TEST_GS_PROJECT_ID")
cfg.Prefix = fmt.Sprintf("test-%d", time.Now().UnixNano())
return cfg, nil
},
// CreateFn is a function that creates a temporary repository for the tests.
Create: func(config interface{}) (restic.Backend, error) {
cfg := config.(gs.Config)
be, err := gs.Create(cfg, tr)
if err != nil {
return nil, err
}
exists, err := be.Test(context.TODO(), restic.Handle{Type: restic.ConfigFile})
if err != nil {
return nil, err
}
if exists {
return nil, errors.New("config already exists")
}
return be, nil
},
// OpenFn is a function that opens a previously created temporary repository.
Open: func(config interface{}) (restic.Backend, error) {
cfg := config.(gs.Config)
return gs.Open(cfg, tr)
},
// CleanupFn removes data created during the tests.
Cleanup: func(config interface{}) error {
cfg := config.(gs.Config)
be, err := gs.Open(cfg, tr)
if err != nil {
return err
}
return be.Delete(context.TODO())
},
}
}
func TestBackendGS(t *testing.T) {
defer func() {
if t.Skipped() {
rtest.SkipDisallowed(t, "restic/backend/gs.TestBackendGS")
}
}()
vars := []string{
"RESTIC_TEST_GS_PROJECT_ID",
"RESTIC_TEST_GS_REPOSITORY",
}
for _, v := range vars {
if os.Getenv(v) == "" {
t.Skipf("environment variable %v not set", v)
return
}
}
if os.Getenv("GOOGLE_APPLICATION_CREDENTIALS")+os.Getenv("GOOGLE_ACCESS_TOKEN") == "" {
t.Skipf("environment variable GOOGLE_APPLICATION_CREDENTIALS not set, nor GOOGLE_ACCESS_TOKEN")
return
}
t.Logf("run tests")
newGSTestSuite(t).RunTests(t)
}
func BenchmarkBackendGS(t *testing.B) {
vars := []string{
"RESTIC_TEST_GS_PROJECT_ID",
"RESTIC_TEST_GS_REPOSITORY",
}
for _, v := range vars {
if os.Getenv(v) == "" {
t.Skipf("environment variable %v not set", v)
return
}
}
if os.Getenv("GOOGLE_APPLICATION_CREDENTIALS")+os.Getenv("GOOGLE_ACCESS_TOKEN") == "" {
t.Skipf("environment variable GOOGLE_APPLICATION_CREDENTIALS not set, nor GOOGLE_ACCESS_TOKEN")
return
}
t.Logf("run tests")
newGSTestSuite(t).RunBenchmarks(t)
}