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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 static
import (
"io"
"strings"
"testing"
v1 "github.com/google/go-containerregistry/pkg/v1"
"github.com/google/go-containerregistry/pkg/v1/types"
"github.com/google/go-containerregistry/pkg/v1/validate"
)
func TestNewLayer(t *testing.T) {
b := []byte(strings.Repeat(".", 10))
l := NewLayer(b, types.OCILayer)
// This does basically nothing.
if err := validate.Layer(l, validate.Fast); err != nil {
t.Fatal(err)
}
// Digest and DiffID match, and match expectations.
h, err := l.Digest()
if err != nil {
t.Fatal(err)
}
h2, err := l.DiffID()
if err != nil {
t.Fatal(err)
}
if h != h2 {
t.Errorf("Digest != DiffID; digest is %v, diffid is %v", h, h2)
}
wantDigest, err := v1.NewHash("sha256:537f3fb69ba01fc388a3a5c920c485b2873d5f327305c3dd2004d6a04451659b")
if err != nil {
t.Fatal(err)
}
if h != wantDigest {
t.Errorf("Digest mismatch; got %v, want %v", h, wantDigest)
}
sz, err := l.Size()
if err != nil {
t.Fatal(err)
}
if sz != 10 {
t.Errorf("Size mismatch; got %d, want %d", sz, 10)
}
mt, err := l.MediaType()
if err != nil {
t.Fatal(err)
}
if mt != types.OCILayer {
t.Errorf("MediaType mismatch; got %v, want %v", mt, types.OCILayer)
}
r, err := l.Uncompressed()
if err != nil {
t.Fatal(err)
}
got, err := io.ReadAll(r)
if err != nil {
t.Fatal(err)
}
if string(got) != string(b) {
t.Errorf("Contents mismatch: got %q, want %q", string(got), string(b))
}
}
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