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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 (
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"testing"
"github.com/google/go-containerregistry/pkg/v1/types"
)
func TestDigest_MissingDigest(t *testing.T) {
response := []byte("doesn't matter")
digest := "sha256:477c34d98f9e090a4441cf82d2f1f03e64c8eb730e8c1ef39a8595e685d4df65" // Digest of "doesn't matter"
getCalled := false
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path == "/v2/" {
w.WriteHeader(http.StatusOK)
return
}
w.Header().Set("Content-Type", string(types.DockerManifestSchema2))
if r.Method == http.MethodGet {
getCalled = true
w.Header().Set("Docker-Content-Digest", digest)
}
// This will automatically set the Content-Length header.
w.Write(response)
}))
defer server.Close()
u, err := url.Parse(server.URL)
if err != nil {
t.Fatalf("url.Parse(%v) = %v", server.URL, err)
}
got, err := Digest(fmt.Sprintf("%s/repo:latest", u.Host))
if err != nil {
t.Fatalf("Digest: %v", err)
}
if got != digest {
t.Errorf("Digest: got %q, want %q", got, digest)
}
if !getCalled {
t.Errorf("Digest: expected GET to be called")
}
}
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