automation-tests/cmd/podman/shell_completion_test.go

70 lines
2.1 KiB
Go

/*
The purpose of this test is to keep a consistent
and great shell autocompletion experience.
This test ensures that each command and flag has a shell completion
function set. (except boolean, hidden and deprecated flags)
Shell completion functions are defined in:
- "github.com/containers/podman/v5/cmd/podman/common/completion.go"
- "github.com/containers/common/pkg/completion"
and are called Autocomplete...
To apply such function to a command use the ValidArgsFunction field.
To apply such function to a flag use cmd.RegisterFlagCompletionFunc(name,func)
If there are any questions/problems please tag Luap99.
*/
package main
import (
"testing"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
func TestShellCompletionFunctions(t *testing.T) {
rootCmd := parseCommands()
checkCommand(t, rootCmd)
}
func checkCommand(t *testing.T, cmd *cobra.Command) {
if cmd.HasSubCommands() {
for _, childCmd := range cmd.Commands() {
if !childCmd.Hidden {
checkCommand(t, childCmd)
}
}
// if not check if completion for that command is provided
} else if cmd.ValidArgsFunction == nil && cmd.ValidArgs == nil {
t.Errorf("%s command has no shell completion function set", cmd.CommandPath())
}
// loop over all local flags
cmd.LocalFlags().VisitAll(func(flag *pflag.Flag) {
// an error means that there is a completion function for this flag
err := cmd.RegisterFlagCompletionFunc(flag.Name, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
return nil, cobra.ShellCompDirectiveDefault
})
switch {
case flag.Value.Type() == "bool" && err != nil:
// make sure bool flags don't have a completion function
t.Errorf(`%s --%s is a bool flag but has a shell completion function set.
You have to remove this shell completion function.`, cmd.CommandPath(), flag.Name)
return
case flag.Value.Type() == "bool" || flag.Hidden || len(flag.Deprecated) > 0:
// skip bool, hidden and deprecated flags
return
case err == nil:
// there is no shell completion function
t.Errorf("%s --%s flag has no shell completion function set", cmd.CommandPath(), flag.Name)
}
})
}