97 lines
2.9 KiB
Go
97 lines
2.9 KiB
Go
package storage
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import (
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"context"
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"errors"
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"io"
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"testing"
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"time"
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"kra/internal/biz/system"
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)
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type blockingStorage struct {
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started chan struct{}
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release chan struct{}
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}
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func (s *blockingStorage) Put(context.Context, string, io.Reader) (*system.StoredFile, error) {
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close(s.started)
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<-s.release
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return &system.StoredFile{Name: "uploaded"}, nil
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}
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func (*blockingStorage) Open(context.Context, string) (io.ReadCloser, error) {
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return nil, errors.New("not implemented")
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}
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func (*blockingStorage) Delete(context.Context, string) error { return nil }
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func (*blockingStorage) Compose(context.Context, []string, string) (*system.StoredFile, string, error) {
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return nil, "", errors.New("not implemented")
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}
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func (*blockingStorage) DeletePrefix(context.Context, string) error { return nil }
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func (*blockingStorage) List(context.Context, string, string, int) ([]*system.StoredFile, string, bool, error) {
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return nil, "", false, errors.New("not implemented")
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}
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type emptyStorage struct{}
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func (*emptyStorage) Put(context.Context, string, io.Reader) (*system.StoredFile, error) {
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return &system.StoredFile{Name: "replacement"}, nil
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}
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func (*emptyStorage) Open(context.Context, string) (io.ReadCloser, error) {
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return nil, errors.New("not implemented")
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}
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func (*emptyStorage) Delete(context.Context, string) error { return nil }
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func (*emptyStorage) Compose(context.Context, []string, string) (*system.StoredFile, string, error) {
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return nil, "", errors.New("not implemented")
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}
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func (*emptyStorage) DeletePrefix(context.Context, string) error { return nil }
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func (*emptyStorage) List(context.Context, string, string, int) ([]*system.StoredFile, string, bool, error) {
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return nil, "", false, errors.New("not implemented")
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}
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func TestReloadableReplaceDoesNotWaitForInFlightOperation(t *testing.T) {
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old := &blockingStorage{started: make(chan struct{}), release: make(chan struct{})}
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reloadable := &Reloadable{current: old}
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putDone := make(chan error, 1)
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go func() {
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_, err := reloadable.Put(context.Background(), "file", nil)
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putDone <- err
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}()
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select {
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case <-old.started:
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case <-time.After(time.Second):
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t.Fatal("storage operation did not start")
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}
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replaced := make(chan struct{})
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go func() {
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reloadable.Replace(&emptyStorage{})
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close(replaced)
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}()
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select {
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case <-replaced:
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case <-time.After(200 * time.Millisecond):
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t.Fatal("Replace waited for an in-flight storage operation")
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}
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close(old.release)
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select {
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case err := <-putDone:
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if err != nil {
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t.Fatalf("Put() error = %v", err)
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}
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case <-time.After(time.Second):
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t.Fatal("storage operation did not finish")
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}
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}
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func TestReloadableNilStorageReturnsError(t *testing.T) {
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var reloadable *Reloadable
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if _, err := reloadable.Put(context.Background(), "file", nil); err == nil {
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t.Fatal("nil Reloadable.Put() succeeded")
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}
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if _, err := (&Reloadable{}).Open(context.Background(), "file"); err == nil {
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t.Fatal("empty Reloadable.Open() succeeded")
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}
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}
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