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|
package client
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
"strings"
"testing"
"github.com/docker/docker-credential-helpers/credentials"
)
const (
validServerAddress = "https://index.docker.io/v1"
validServerAddress2 = "https://example.com:5002"
invalidServerAddress = "https://foobar.example.com"
missingCredsAddress = "https://missing.docker.io/v1"
)
var errProgramExited = fmt.Errorf("exited 1")
// mockProgram simulates interactions between the docker client and a remote
// credentials helper.
// Unit tests inject this mocked command into the remote to control execution.
type mockProgram struct {
arg string
input io.Reader
}
// Output returns responses from the remote credentials helper.
// It mocks those responses based in the input in the mock.
func (m *mockProgram) Output() ([]byte, error) {
in, err := ioutil.ReadAll(m.input)
if err != nil {
return nil, err
}
inS := string(in)
switch m.arg {
case "erase":
switch inS {
case validServerAddress:
return nil, nil
default:
return []byte("program failed"), errProgramExited
}
case "get":
switch inS {
case validServerAddress:
return []byte(`{"Username": "foo", "Secret": "bar"}`), nil
case validServerAddress2:
return []byte(`{"Username": "<token>", "Secret": "abcd1234"}`), nil
case missingCredsAddress:
return []byte(credentials.NewErrCredentialsNotFound().Error()), errProgramExited
case invalidServerAddress:
return []byte("program failed"), errProgramExited
}
case "store":
var c credentials.Credentials
err := json.NewDecoder(strings.NewReader(inS)).Decode(&c)
if err != nil {
return []byte("error storing credentials"), errProgramExited
}
switch c.ServerURL {
case validServerAddress:
return nil, nil
case validServerAddress2:
return nil, nil
default:
return []byte("error storing credentials"), errProgramExited
}
}
return []byte(fmt.Sprintf("unknown argument %q with %q", m.arg, inS)), errProgramExited
}
// Input sets the input to send to a remote credentials helper.
func (m *mockProgram) Input(in io.Reader) {
m.input = in
}
func mockProgramFn(args ...string) Program {
return &mockProgram{
arg: args[0],
}
}
func ExampleStore() {
p := NewShellProgramFunc("docker-credential-secretservice")
c := &credentials.Credentials{
ServerURL: "https://example.com",
Username: "calavera",
Secret: "my super secret token",
}
if err := Store(p, c); err != nil {
fmt.Println(err)
}
}
func TestStore(t *testing.T) {
valid := []credentials.Credentials{
{validServerAddress, "foo", "bar"},
{validServerAddress2, "<token>", "abcd1234"},
}
for _, v := range valid {
if err := Store(mockProgramFn, &v); err != nil {
t.Fatal(err)
}
}
invalid := []credentials.Credentials{
{invalidServerAddress, "foo", "bar"},
}
for _, v := range invalid {
if err := Store(mockProgramFn, &v); err == nil {
t.Fatalf("Expected error for server %s, got nil", v.ServerURL)
}
}
}
func ExampleGet() {
p := NewShellProgramFunc("docker-credential-secretservice")
creds, err := Get(p, "https://example.com")
if err != nil {
fmt.Println(err)
}
fmt.Printf("Got credentials for user `%s` in `%s`\n", creds.Username, creds.ServerURL)
}
func TestGet(t *testing.T) {
valid := []credentials.Credentials{
{validServerAddress, "foo", "bar"},
{validServerAddress2, "<token>", "abcd1234"},
}
for _, v := range valid {
c, err := Get(mockProgramFn, v.ServerURL)
if err != nil {
t.Fatal(err)
}
if c.Username != v.Username {
t.Fatalf("expected username `%s`, got %s", v.Username, c.Username)
}
if c.Secret != v.Secret {
t.Fatalf("expected secret `%s`, got %s", v.Secret, c.Secret)
}
}
invalid := []struct {
serverURL string
err string
}{
{missingCredsAddress, credentials.NewErrCredentialsNotFound().Error()},
{invalidServerAddress, "error getting credentials - err: exited 1, out: `program failed`"},
}
for _, v := range invalid {
_, err := Get(mockProgramFn, v.serverURL)
if err == nil {
t.Fatalf("Expected error for server %s, got nil", v.serverURL)
}
if err.Error() != v.err {
t.Fatalf("Expected error `%s`, got `%v`", v.err, err)
}
}
}
func ExampleErase() {
p := NewShellProgramFunc("docker-credential-secretservice")
if err := Erase(p, "https://example.com"); err != nil {
fmt.Println(err)
}
}
func TestErase(t *testing.T) {
if err := Erase(mockProgramFn, validServerAddress); err != nil {
t.Fatal(err)
}
if err := Erase(mockProgramFn, invalidServerAddress); err == nil {
t.Fatalf("Expected error for server %s, got nil", invalidServerAddress)
}
}
|
