DockerCLI/cmd/docker/docker_test.go

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package main
import (
"io/ioutil"
"os"
"testing"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/debug"
"github.com/sirupsen/logrus"
"github.com/stretchr/testify/assert"
)
func TestClientDebugEnabled(t *testing.T) {
defer debug.Disable()
cmd := newDockerCommand(&command.DockerCli{})
cmd.Flags().Set("debug", "true")
err := cmd.PersistentPreRunE(cmd, []string{})
assert.NoError(t, err)
assert.Equal(t, "1", os.Getenv("DEBUG"))
assert.Equal(t, logrus.DebugLevel, logrus.GetLevel())
}
func TestExitStatusForInvalidSubcommandWithHelpFlag(t *testing.T) {
discard := ioutil.Discard
cmd := newDockerCommand(command.NewDockerCli(os.Stdin, discard, discard))
cmd.SetArgs([]string{"help", "invalid"})
err := cmd.Execute()
assert.EqualError(t, err, "unknown help topic: invalid")
}