package cli

import (
	"strings"
	"testing"
)

func TestAppRunRejectsUnknownCommand(t *testing.T) {
	app := NewApp(nil, nil, nil, nil)

	err := app.Run([]string{"unknown"})
	if err == nil {
		t.Fatal("expected error for unknown command")
	}
}

func TestAppRunShowsUsageWhenNoArgsProvided(t *testing.T) {
	app := NewApp(nil, nil, nil, nil)

	err := app.Run(nil)
	if err == nil {
		t.Fatal("expected error for missing command")
	}
	if !strings.Contains(err.Error(), "usage:") {
		t.Fatalf("expected usage text in error, got %q", err.Error())
	}
}