docker-cli/cli/command/plugin/disable_test.go
Sebastiaan van Stijn c60b360c33
cli: improve argument validation output
Improve the output for these validation errors:

- Removes the short command description from the output. This information
  does not provide much useful help, and distracts from the error message.
- Reduces punctuation, and
- Prefixes the error message with the binary / root-command name
  (usually `docker:`) to be consistent with other similar errors.
- Adds an empty line between the error-message and the "call to action"
  (`Run 'docker volume --help'...` in the example below). This helps
  separating the error message and "usage" from the call-to-action.

Before this patch:

    $ docker volume ls one two three
    "docker volume ls" accepts no arguments.
    See 'docker volume ls --help'.

    Usage:  docker volume ls [OPTIONS]

    List volumes

    $ docker volume create one two three
    "docker volume create" requires at most 1 argument.
    See 'docker volume create --help'.

    Usage:  docker volume create [OPTIONS] [VOLUME]

    Create a volume

With this patch:

    $ docker volume ls one two three
    docker: 'docker volume ls' accepts no arguments

    Usage:  docker volume ls [OPTIONS]

    Run 'docker volume ls --help' for more information

    $ docker voludocker volume create one two three
    docker: 'docker volume create' requires at most 1 argument

    Usage:  docker volume create [OPTIONS] [VOLUME]

    SRun 'docker volume create --help' for more information

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2024-07-05 03:35:14 +02:00

60 lines
1.4 KiB
Go

package plugin
import (
"errors"
"io"
"testing"
"github.com/docker/cli/internal/test"
"github.com/docker/docker/api/types"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
)
func TestPluginDisableErrors(t *testing.T) {
testCases := []struct {
args []string
expectedError string
pluginDisableFunc func(name string, disableOptions types.PluginDisableOptions) error
}{
{
args: []string{},
expectedError: "requires 1 argument",
},
{
args: []string{"too", "many", "arguments"},
expectedError: "requires 1 argument",
},
{
args: []string{"plugin-foo"},
expectedError: "error disabling plugin",
pluginDisableFunc: func(name string, disableOptions types.PluginDisableOptions) error {
return errors.New("error disabling plugin")
},
},
}
for _, tc := range testCases {
cmd := newDisableCommand(
test.NewFakeCli(&fakeClient{
pluginDisableFunc: tc.pluginDisableFunc,
}))
cmd.SetArgs(tc.args)
cmd.SetOut(io.Discard)
cmd.SetErr(io.Discard)
assert.ErrorContains(t, cmd.Execute(), tc.expectedError)
}
}
func TestPluginDisable(t *testing.T) {
cli := test.NewFakeCli(&fakeClient{
pluginDisableFunc: func(name string, disableOptions types.PluginDisableOptions) error {
return nil
},
})
cmd := newDisableCommand(cli)
cmd.SetArgs([]string{"plugin-foo"})
assert.NilError(t, cmd.Execute())
assert.Check(t, is.Equal("plugin-foo\n", cli.OutBuffer().String()))
}