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// Copyright 2021 Google LLC All Rights Reserved.
//
// 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 crane
import (
"bytes"
"testing"
"github.com/google/go-containerregistry/pkg/v1/empty"
"github.com/google/go-containerregistry/pkg/v1/mutate"
"github.com/google/go-containerregistry/pkg/v1/static"
"github.com/google/go-containerregistry/pkg/v1/types"
)
func TestExport(t *testing.T) {
want := []byte(`{"foo":"bar"}`)
layer := static.NewLayer(want, types.MediaType("application/json"))
img, err := mutate.AppendLayers(empty.Image, layer)
if err != nil {
t.Fatal(err)
}
var buf bytes.Buffer
if err := Export(img, &buf); err != nil {
t.Fatal(err)
}
if got := buf.Bytes(); !bytes.Equal(got, want) {
t.Errorf("got: %s\nwant: %s", got, want)
}
}
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