Nelmio\Alice\Definition\Value\UniqueValueTest::testIsImmutable PHP Method

    public function testIsImmutable()
    {
        $id = 'Nelmio\\Entity\\User#user0#username';
        $value = [$arg0 = new \stdClass()];
        $definition = new UniqueValue($id, $value);
        // Mutate injected value
        $arg0->foo = 'bar';
        // Mutate returned value
        $definition->getValue()[0]->foo = 'baz';
        $this->assertEquals([new \stdClass()], $definition->getValue());
    }