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//
// Copyright 2021 The Sigstore 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 empty
import (
"os"
"testing"
"github.com/google/go-containerregistry/pkg/v1/types"
"github.com/sigstore/cosign/v2/pkg/cosign/env"
)
func TestEmptyImage(t *testing.T) {
tests := []struct {
name string
value string
wantMT types.MediaType
wantConfigMT types.MediaType
}{{
name: "unset",
wantMT: types.OCIManifestSchema1,
wantConfigMT: types.OCIConfigJSON,
}, {
name: "set false",
value: "false",
wantMT: types.OCIManifestSchema1,
wantConfigMT: types.OCIConfigJSON,
}, {
name: "set true",
value: "true",
wantMT: types.DockerManifestSchema2,
wantConfigMT: types.DockerConfigJSON,
}}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
if err := os.Setenv(env.VariableDockerMediaTypes.String(), test.value); err != nil {
t.Fatalf("Setenv() = %v", err)
}
img := Signatures()
if mt, err := img.MediaType(); err != nil {
t.Errorf("MediaType() = %v", err)
} else if mt != test.wantMT {
t.Errorf("MediaType() = %v, wanted %v", mt, test.wantMT)
}
m, err := img.Manifest()
if err != nil {
t.Fatalf("ConfigFile() = %v", err)
}
if mt := m.Config.MediaType; mt != test.wantConfigMT {
t.Errorf("Config.MediaType = %v, wanted %v", mt, test.wantConfigMT)
}
})
}
}
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