fetchAllCustomers example

        $input = new ArrayInput(['type' => 'foo'], $this->createInputDefinition());

        $this->expectException(\InvalidArgumentException::class);
        $this->getCommand()->run($input, new BufferedOutput());
    }

    public function testCommandRemovesGuest(): void
    {
        $this->createGuest();

        static::assertCount(1, $this->fetchAllCustomers());

        $input = new ArrayInput(['type' => 'guests'], $this->createInputDefinition());
        $this->getCommand()->run($input, new BufferedOutput());

        static::assertEmpty($this->fetchAllCustomers());
    }

    public function testCommandIsNoGuest(): void
    {
        $this->createGuest(false);