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keychain_test.go
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keychain_test.go
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// Copyright 2018 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 authn
import (
"encoding/base64"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"reflect"
"testing"
"github.com/google/go-containerregistry/pkg/name"
)
var (
fresh = 0
testRegistry, _ = name.NewRegistry("test.io", name.WeakValidation)
defaultRegistry, _ = name.NewRegistry(name.DefaultRegistry, name.WeakValidation)
)
// setupConfigDir sets up an isolated configDir() for this test.
func setupConfigDir(t *testing.T) string {
tmpdir := os.Getenv("TEST_TMPDIR")
if tmpdir == "" {
var err error
tmpdir, err = ioutil.TempDir("", "keychain_test")
if err != nil {
t.Fatalf("creating temp dir: %v", err)
}
}
fresh = fresh + 1
p := fmt.Sprintf("%s/%d", tmpdir, fresh)
os.Setenv("DOCKER_CONFIG", p)
if err := os.Mkdir(p, 0777); err != nil {
t.Fatalf("mkdir %q: %v", p, err)
}
return p
}
func setupConfigFile(t *testing.T, content string) string {
cd := setupConfigDir(t)
p := filepath.Join(cd, "config.json")
if err := ioutil.WriteFile(p, []byte(content), 0600); err != nil {
t.Fatalf("write %q: %v", p, err)
}
// return the config dir so we can clean up
return cd
}
func TestNoConfig(t *testing.T) {
cd := setupConfigDir(t)
defer os.RemoveAll(filepath.Dir(cd))
auth, err := DefaultKeychain.Resolve(testRegistry)
if err != nil {
t.Fatalf("Resolve() = %v", err)
}
if auth != Anonymous {
t.Errorf("expected Anonymous, got %v", auth)
}
}
func encode(user, pass string) string {
delimited := fmt.Sprintf("%s:%s", user, pass)
return base64.StdEncoding.EncodeToString([]byte(delimited))
}
func TestVariousPaths(t *testing.T) {
tests := []struct {
content string
wantErr bool
target name.Registry
cfg *AuthConfig
}{{
target: testRegistry,
content: `}{`,
wantErr: true,
}, {
target: testRegistry,
content: `{"credsStore":"#definitely-does-not-exist"}`,
wantErr: true,
}, {
target: testRegistry,
content: fmt.Sprintf(`{"auths": {"test.io": {"auth": %q}}}`, encode("foo", "bar")),
cfg: &AuthConfig{
Username: "foo",
Password: "bar",
},
}, {
target: defaultRegistry,
content: fmt.Sprintf(`{"auths": {"%s": {"auth": %q}}}`, DefaultAuthKey, encode("foo", "bar")),
cfg: &AuthConfig{
Username: "foo",
Password: "bar",
},
}}
for _, test := range tests {
cd := setupConfigFile(t, test.content)
// For some reason, these tempdirs don't get cleaned up.
defer os.RemoveAll(filepath.Dir(cd))
auth, err := DefaultKeychain.Resolve(test.target)
if test.wantErr {
if err == nil {
t.Fatal("wanted err, got nil")
} else if err != nil {
// success
continue
}
}
if err != nil {
t.Fatalf("wanted nil, got err: %v", err)
}
cfg, err := auth.Authorization()
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(cfg, test.cfg) {
t.Errorf("got %+v, want %+v", cfg, test.cfg)
}
}
}