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gs.go
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gs.go
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package helpers
import (
"context"
"errors"
"net/http"
"google.golang.org/api/googleapi"
"cloud.google.com/go/storage"
"github.com/rotisserie/eris"
"google.golang.org/api/iterator"
"google.golang.org/api/option"
)
type GSTestSuite struct {
BaseTestSuite
Client *storage.Client
testBuckets []string
}
// NewGSTestSuite creates a new instance of GSTestSuite.
func NewGSTestSuite(testBuckets ...string) GSTestSuite {
return GSTestSuite{
testBuckets: testBuckets,
}
}
func (s *GSTestSuite) SetupSuite() {
s.BaseTestSuite.SetupSuite()
client, err := NewGSClient(GetGSEndpointUri())
s.Require().Nil(err)
s.Client = client
s.AddSetupHook(func() {
s.Require().Nil(s.CreateTestBuckets())
})
s.AddTearDownHook(func() {
s.Require().Nil(s.DeleteTestBuckets())
})
}
// NewGSClient creates new instance of Google Storage client.
func NewGSClient(endpoint string) (*storage.Client, error) {
client, err := storage.NewClient(
context.TODO(), option.WithEndpoint(endpoint), option.WithoutAuthentication(),
)
if err != nil {
return nil, eris.Wrap(err, "error creating GS client")
}
return client, nil
}
// CreateTestBuckets creates the test buckets.
func (s *GSTestSuite) CreateTestBuckets() error {
for _, bucket := range s.testBuckets {
if err := s.Client.Bucket(bucket).Create(context.Background(), "", nil); err != nil {
return eris.Wrapf(err, "failed to create bucket %q", bucket)
}
}
return nil
}
// DeleteTestBuckets deletes the test buckets.
func (s *GSTestSuite) DeleteTestBuckets() error {
for _, bucket := range s.testBuckets {
it := s.Client.Bucket(bucket).Objects(context.Background(), &storage.Query{})
for {
object, err := it.Next()
if err != nil {
if errors.Is(err, iterator.Done) || errors.Is(err, storage.ErrBucketNotExist) {
break
}
return eris.Wrapf(err, "failed to list objects in bucket %q", bucket)
}
if err := s.Client.Bucket(bucket).Object(object.Name).Delete(context.Background()); err != nil {
return eris.Wrapf(err, "failed to delete objects in bucket %q", bucket)
}
}
var e *googleapi.Error
if err := s.Client.Bucket(bucket).Delete(context.Background()); errors.As(err, &e) &&
e.Code != http.StatusNotFound {
return eris.Wrapf(err, "failed to delete bucket %q", bucket)
}
}
return nil
}