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

    public function testCannotCumulateUniqueFlags()
    {
        $uniqueFlag1 = new UniqueFlag();
        $uniqueFlag2 = new UniqueFlag();
        $flags = (new FlagBag('user0'))->withFlag($uniqueFlag1)->withFlag($uniqueFlag2);
        $this->assertSameFlags([$uniqueFlag2], $flags);
    }