DockerCLI/cli/command/checkpoint/create_test.go

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package checkpoint
import (
"io/ioutil"
"strings"
"testing"
"github.com/docker/cli/internal/test"
"github.com/docker/cli/internal/test/testutil"
"github.com/docker/docker/api/types"
"github.com/pkg/errors"
"github.com/stretchr/testify/assert"
)
func TestCheckpointCreateErrors(t *testing.T) {
testCases := []struct {
args []string
checkpointCreateFunc func(container string, options types.CheckpointCreateOptions) error
expectedError string
}{
{
args: []string{"too-few-arguments"},
expectedError: "requires exactly 2 arguments",
},
{
args: []string{"too", "many", "arguments"},
expectedError: "requires exactly 2 arguments",
},
{
args: []string{"foo", "bar"},
checkpointCreateFunc: func(container string, options types.CheckpointCreateOptions) error {
return errors.Errorf("error creating checkpoint for container foo")
},
expectedError: "error creating checkpoint for container foo",
},
}
for _, tc := range testCases {
cli := test.NewFakeCli(&fakeClient{
checkpointCreateFunc: tc.checkpointCreateFunc,
})
cmd := newCreateCommand(cli)
cmd.SetArgs(tc.args)
cmd.SetOutput(ioutil.Discard)
testutil.ErrorContains(t, cmd.Execute(), tc.expectedError)
}
}
func TestCheckpointCreateWithOptions(t *testing.T) {
var containerID, checkpointID, checkpointDir string
var exit bool
cli := test.NewFakeCli(&fakeClient{
checkpointCreateFunc: func(container string, options types.CheckpointCreateOptions) error {
containerID = container
checkpointID = options.CheckpointID
checkpointDir = options.CheckpointDir
exit = options.Exit
return nil
},
})
cmd := newCreateCommand(cli)
checkpoint := "checkpoint-bar"
cmd.SetArgs([]string{"container-foo", checkpoint})
cmd.Flags().Set("leave-running", "true")
cmd.Flags().Set("checkpoint-dir", "/dir/foo")
assert.NoError(t, cmd.Execute())
assert.Equal(t, "container-foo", containerID)
assert.Equal(t, checkpoint, checkpointID)
assert.Equal(t, "/dir/foo", checkpointDir)
assert.Equal(t, false, exit)
assert.Equal(t, checkpoint, strings.TrimSpace(cli.OutBuffer().String()))
}