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oras_storage.go
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/
oras_storage.go
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/*
Copyright The Ratify Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package mocks
import (
"context"
"io"
"github.com/opencontainers/go-digest"
oci "github.com/opencontainers/image-spec/specs-go/v1"
"oras.land/oras-go/v2/content"
"oras.land/oras-go/v2/errdef"
)
type TestStorage struct {
content.Storage
ExistsMap map[digest.Digest]io.Reader
}
func (s TestStorage) Exists(_ context.Context, target oci.Descriptor) (bool, error) {
if _, ok := s.ExistsMap[target.Digest]; ok {
return true, nil
}
return false, nil
}
func (s TestStorage) Push(_ context.Context, expected oci.Descriptor, content io.Reader) error {
s.ExistsMap[expected.Digest] = content
return nil
}
func (s TestStorage) Fetch(_ context.Context, target oci.Descriptor) (io.ReadCloser, error) {
if reader, ok := s.ExistsMap[target.Digest]; ok {
return io.NopCloser(reader), nil
}
return nil, errdef.ErrNotFound
}