Nelmio\Alice\Definition\FlagBagTest::testIsImmutable PHP Method

    public function testIsImmutable()
    {
        $bag = (new FlagBag(''))->withFlag($flag = new MutableFlag('foo', new \stdClass()));
        $flag->getObject()->foo = 'bar';
        $this->assertEquals((new FlagBag(''))->withFlag($flag = new MutableFlag('foo', new \stdClass())), $bag);
        $this->assertTrue(true, 'Nothing to do.');
    }