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>
71 lines
1.7 KiB
Go
71 lines
1.7 KiB
Go
package plugin
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import (
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"errors"
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"io"
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"testing"
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"github.com/docker/cli/internal/test"
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"github.com/docker/docker/api/types"
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"gotest.tools/v3/assert"
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is "gotest.tools/v3/assert/cmp"
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)
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func TestPluginEnableErrors(t *testing.T) {
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testCases := []struct {
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args []string
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flags map[string]string
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pluginEnableFunc func(name string, options types.PluginEnableOptions) error
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expectedError string
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}{
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{
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args: []string{},
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expectedError: "requires 1 argument",
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},
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{
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args: []string{"too-many", "arguments"},
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expectedError: "requires 1 argument",
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},
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{
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args: []string{"plugin-foo"},
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pluginEnableFunc: func(name string, options types.PluginEnableOptions) error {
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return errors.New("failed to enable plugin")
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},
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expectedError: "failed to enable plugin",
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},
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{
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args: []string{"plugin-foo"},
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flags: map[string]string{
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"timeout": "-1",
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},
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expectedError: "negative timeout -1 is invalid",
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},
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}
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for _, tc := range testCases {
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cmd := newEnableCommand(test.NewFakeCli(&fakeClient{
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pluginEnableFunc: tc.pluginEnableFunc,
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}))
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cmd.SetArgs(tc.args)
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for key, value := range tc.flags {
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cmd.Flags().Set(key, value)
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}
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cmd.SetOut(io.Discard)
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cmd.SetErr(io.Discard)
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assert.ErrorContains(t, cmd.Execute(), tc.expectedError)
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}
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}
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func TestPluginEnable(t *testing.T) {
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cli := test.NewFakeCli(&fakeClient{
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pluginEnableFunc: func(name string, options types.PluginEnableOptions) error {
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return nil
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},
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})
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cmd := newEnableCommand(cli)
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cmd.SetArgs([]string{"plugin-foo"})
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assert.NilError(t, cmd.Execute())
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assert.Check(t, is.Equal("plugin-foo\n", cli.OutBuffer().String()))
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}
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