DockerCLI/command/swarm/leave_test.go

53 lines
1.2 KiB
Go

package swarm
import (
"bytes"
"io/ioutil"
"strings"
"testing"
"github.com/docker/docker/cli/internal/test"
"github.com/docker/docker/pkg/testutil/assert"
"github.com/pkg/errors"
)
func TestSwarmLeaveErrors(t *testing.T) {
testCases := []struct {
name string
args []string
swarmLeaveFunc func() error
expectedError string
}{
{
name: "too-many-args",
args: []string{"foo"},
expectedError: "accepts no argument(s)",
},
{
name: "leave-failed",
swarmLeaveFunc: func() error {
return errors.Errorf("error leaving the swarm")
},
expectedError: "error leaving the swarm",
},
}
for _, tc := range testCases {
buf := new(bytes.Buffer)
cmd := newLeaveCommand(
test.NewFakeCli(&fakeClient{
swarmLeaveFunc: tc.swarmLeaveFunc,
}, buf))
cmd.SetArgs(tc.args)
cmd.SetOutput(ioutil.Discard)
assert.Error(t, cmd.Execute(), tc.expectedError)
}
}
func TestSwarmLeave(t *testing.T) {
buf := new(bytes.Buffer)
cmd := newLeaveCommand(
test.NewFakeCli(&fakeClient{}, buf))
assert.NilError(t, cmd.Execute())
assert.Equal(t, strings.TrimSpace(buf.String()), "Node left the swarm.")
}