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package command
import (
"os"
"testing"
"crypto/x509"
"github.com/docker/cli/cli/config/configfile"
"github.com/docker/cli/cli/flags"
"github.com/docker/cli/internal/test/testutil"
"github.com/docker/docker/api"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
"github.com/pkg/errors"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.org/x/net/context"
)
func TestNewAPIClientFromFlags(t *testing.T) {
host := "unix://path"
opts := &flags.CommonOptions{Hosts: []string{host}}
configFile := &configfile.ConfigFile{
HTTPHeaders: map[string]string{
"My-Header": "Custom-Value",
},
}
apiclient, err := NewAPIClientFromFlags(opts, configFile)
require.NoError(t, err)
assert.Equal(t, host, apiclient.DaemonHost())
expectedHeaders := map[string]string{
"My-Header": "Custom-Value",
"User-Agent": UserAgent(),
}
assert.Equal(t, expectedHeaders, apiclient.(*client.Client).CustomHTTPHeaders())
assert.Equal(t, api.DefaultVersion, apiclient.ClientVersion())
}
func TestNewAPIClientFromFlagsWithAPIVersionFromEnv(t *testing.T) {
customVersion := "v3.3.3"
defer patchEnvVariable(t, "DOCKER_API_VERSION", customVersion)()
opts := &flags.CommonOptions{}
configFile := &configfile.ConfigFile{}
apiclient, err := NewAPIClientFromFlags(opts, configFile)
require.NoError(t, err)
assert.Equal(t, customVersion, apiclient.ClientVersion())
}
// TODO: use gotestyourself/env.Patch
func patchEnvVariable(t *testing.T, key, value string) func() {
oldValue, ok := os.LookupEnv(key)
require.NoError(t, os.Setenv(key, value))
return func() {
if !ok {
require.NoError(t, os.Unsetenv(key))
return
}
require.NoError(t, os.Setenv(key, oldValue))
}
}
type fakeClient struct {
client.Client
pingFunc func() (types.Ping, error)
version string
negotiated bool
}
func (c *fakeClient) Ping(_ context.Context) (types.Ping, error) {
return c.pingFunc()
}
func (c *fakeClient) ClientVersion() string {
return c.version
}
func (c *fakeClient) NegotiateAPIVersionPing(types.Ping) {
c.negotiated = true
}
func TestInitializeFromClient(t *testing.T) {
defaultVersion := "v1.55"
var testcases = []struct {
doc string
pingFunc func() (types.Ping, error)
expectedServer ServerInfo
negotiated bool
}{
{
doc: "successful ping",
pingFunc: func() (types.Ping, error) {
return types.Ping{Experimental: true, OSType: "linux", APIVersion: "v1.30"}, nil
},
expectedServer: ServerInfo{HasExperimental: true, OSType: "linux"},
negotiated: true,
},
{
doc: "failed ping, no API version",
pingFunc: func() (types.Ping, error) {
return types.Ping{}, errors.New("failed")
},
expectedServer: ServerInfo{HasExperimental: true},
},
{
doc: "failed ping, with API version",
pingFunc: func() (types.Ping, error) {
return types.Ping{APIVersion: "v1.33"}, errors.New("failed")
},
expectedServer: ServerInfo{HasExperimental: true},
negotiated: true,
},
}
for _, testcase := range testcases {
t.Run(testcase.doc, func(t *testing.T) {
apiclient := &fakeClient{
pingFunc: testcase.pingFunc,
version: defaultVersion,
}
cli := &DockerCli{client: apiclient}
cli.initializeFromClient()
assert.Equal(t, defaultVersion, cli.defaultVersion)
assert.Equal(t, testcase.expectedServer, cli.server)
assert.Equal(t, testcase.negotiated, apiclient.negotiated)
})
}
}
func TestGetClientWithPassword(t *testing.T) {
expected := "password"
var testcases = []struct {
doc string
password string
retrieverErr error
retrieverGiveup bool
newClientErr error
expectedErr string
}{
{
doc: "successful connect",
password: expected,
},
{
doc: "password retriever exhausted",
retrieverGiveup: true,
retrieverErr: errors.New("failed"),
expectedErr: "private key is encrypted, but could not get passphrase",
},
{
doc: "password retriever error",
retrieverErr: errors.New("failed"),
expectedErr: "failed",
},
{
doc: "newClient error",
newClientErr: errors.New("failed to connect"),
expectedErr: "failed to connect",
},
}
for _, testcase := range testcases {
t.Run(testcase.doc, func(t *testing.T) {
passRetriever := func(_, _ string, _ bool, attempts int) (passphrase string, giveup bool, err error) {
// Always return an invalid pass first to test iteration
switch attempts {
case 0:
return "something else", false, nil
default:
return testcase.password, testcase.retrieverGiveup, testcase.retrieverErr
}
}
newClient := func(currentPassword string) (client.APIClient, error) {
if testcase.newClientErr != nil {
return nil, testcase.newClientErr
}
if currentPassword == expected {
return &client.Client{}, nil
}
return &client.Client{}, x509.IncorrectPasswordError
}
_, err := getClientWithPassword(passRetriever, newClient)
if testcase.expectedErr != "" {
testutil.ErrorContains(t, err, testcase.expectedErr)
return
}
assert.NoError(t, err)
})
}
}