DockerCLI/cli/command/cli_test.go

341 lines
8.7 KiB
Go

package command
import (
"crypto/x509"
"os"
"testing"
cliconfig "github.com/docker/cli/cli/config"
"github.com/docker/cli/cli/config/configfile"
"github.com/docker/cli/cli/flags"
"github.com/docker/docker/api"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
"github.com/gotestyourself/gotestyourself/assert"
is "github.com/gotestyourself/gotestyourself/assert/cmp"
"github.com/gotestyourself/gotestyourself/fs"
"github.com/pkg/errors"
"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)
assert.NilError(t, err)
assert.Check(t, is.Equal(host, apiclient.DaemonHost()))
expectedHeaders := map[string]string{
"My-Header": "Custom-Value",
"User-Agent": UserAgent(),
}
assert.Check(t, is.DeepEqual(expectedHeaders, apiclient.(*client.Client).CustomHTTPHeaders()))
assert.Check(t, is.Equal(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)
assert.NilError(t, err)
assert.Check(t, is.Equal(customVersion, apiclient.ClientVersion()))
}
// TODO: use gotestyourself/env.Patch
func patchEnvVariable(t *testing.T, key, value string) func() {
oldValue, ok := os.LookupEnv(key)
assert.NilError(t, os.Setenv(key, value))
return func() {
if !ok {
assert.NilError(t, os.Unsetenv(key))
return
}
assert.NilError(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.Check(t, is.DeepEqual(testcase.expectedServer, cli.serverInfo))
assert.Check(t, is.Equal(testcase.negotiated, apiclient.negotiated))
})
}
}
func TestExperimentalCLI(t *testing.T) {
defaultVersion := "v1.55"
var testcases = []struct {
doc string
configfile string
expectedExperimentalCLI bool
}{
{
doc: "default",
configfile: `{}`,
expectedExperimentalCLI: false,
},
{
doc: "experimental",
configfile: `{
"experimental": "enabled"
}`,
expectedExperimentalCLI: true,
},
}
for _, testcase := range testcases {
t.Run(testcase.doc, func(t *testing.T) {
dir := fs.NewDir(t, testcase.doc, fs.WithFile("config.json", testcase.configfile))
defer dir.Remove()
apiclient := &fakeClient{
version: defaultVersion,
}
cli := &DockerCli{client: apiclient, err: os.Stderr}
cliconfig.SetDir(dir.Path())
err := cli.Initialize(flags.NewClientOptions())
assert.Check(t, err)
assert.Check(t, is.Equal(testcase.expectedExperimentalCLI, cli.ClientInfo().HasExperimental))
})
}
}
func TestOrchestratorSwitch(t *testing.T) {
defaultVersion := "v0.00"
var testcases = []struct {
doc string
configfile string
envOrchestrator string
flagOrchestrator string
expectedOrchestrator string
expectedKubernetes bool
}{
{
doc: "default",
configfile: `{
"experimental": "enabled"
}`,
expectedOrchestrator: "swarm",
expectedKubernetes: false,
},
{
doc: "kubernetesIsExperimental",
configfile: `{
"experimental": "disabled",
"orchestrator": "kubernetes"
}`,
envOrchestrator: "kubernetes",
flagOrchestrator: "kubernetes",
expectedOrchestrator: "swarm",
expectedKubernetes: false,
},
{
doc: "kubernetesConfigFile",
configfile: `{
"experimental": "enabled",
"orchestrator": "kubernetes"
}`,
expectedOrchestrator: "kubernetes",
expectedKubernetes: true,
},
{
doc: "kubernetesEnv",
configfile: `{
"experimental": "enabled"
}`,
envOrchestrator: "kubernetes",
expectedOrchestrator: "kubernetes",
expectedKubernetes: true,
},
{
doc: "kubernetesFlag",
configfile: `{
"experimental": "enabled"
}`,
flagOrchestrator: "kubernetes",
expectedOrchestrator: "kubernetes",
expectedKubernetes: true,
},
{
doc: "envOverridesConfigFile",
configfile: `{
"experimental": "enabled",
"orchestrator": "kubernetes"
}`,
envOrchestrator: "swarm",
expectedOrchestrator: "swarm",
expectedKubernetes: false,
},
{
doc: "flagOverridesEnv",
configfile: `{
"experimental": "enabled"
}`,
envOrchestrator: "kubernetes",
flagOrchestrator: "swarm",
expectedOrchestrator: "swarm",
expectedKubernetes: false,
},
}
for _, testcase := range testcases {
t.Run(testcase.doc, func(t *testing.T) {
dir := fs.NewDir(t, testcase.doc, fs.WithFile("config.json", testcase.configfile))
defer dir.Remove()
apiclient := &fakeClient{
version: defaultVersion,
}
if testcase.envOrchestrator != "" {
defer patchEnvVariable(t, "DOCKER_ORCHESTRATOR", testcase.envOrchestrator)()
}
cli := &DockerCli{client: apiclient, err: os.Stderr}
cliconfig.SetDir(dir.Path())
options := flags.NewClientOptions()
if testcase.flagOrchestrator != "" {
options.Common.Orchestrator = testcase.flagOrchestrator
}
err := cli.Initialize(options)
assert.Check(t, err)
assert.Check(t, is.Equal(testcase.expectedKubernetes, cli.ClientInfo().HasKubernetes()))
assert.Check(t, is.Equal(testcase.expectedOrchestrator, string(cli.ClientInfo().Orchestrator)))
})
}
}
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 != "" {
assert.ErrorContains(t, err, testcase.expectedErr)
return
}
assert.Check(t, err)
})
}
}