func TestCommand_Run_BeforeReturnNewContextSubcommand(t *testing.T) {
        var receivedValFromAction, receivedValFromAfter string
        type key string

        bkey := key("bkey")

        cmd := &Command{
                Name: "bar",
                Before: func(ctx context.Context, cmd *Command) (context.Context, error) {
                        return context.WithValue(ctx, bkey, "bval"), nil
                },
                After: func(ctx context.Context, cmd *Command) error {
                        if val := ctx.Value(bkey); val == nil {
                                return errors.New("bkey value not found")
                        } else {
                                receivedValFromAfter = val.(string)
                        }
                        return nil
                },
                Commands: []*Command{
                        {
                                Name: "baz",
                                Action: func(ctx context.Context, cmd *Command) error {
                                        if val := ctx.Value(bkey); val == nil {
                                                return errors.New("bkey value not found")
                                        } else {
                                                receivedValFromAction = val.(string)
                                        }
                                        return nil
                                },
                        },
                },
        }

        require.NoError(t, cmd.Run(buildTestContext(t), []string{"bar", "baz"}))
        require.Equal(t, "bval", receivedValFromAfter)
        require.Equal(t, "bval", receivedValFromAction)
}