Nelmio\Alice\Generator\Resolver\Value\Chainable\UniqueValueResolver::canResolve PHP Метод

    public function canResolve(ValueInterface $value) : bool
    {
        return $value instanceof UniqueValue;
    }

 public function testCanResolveDynamicArrayValues()
 {
     $resolver = new UniqueValueResolver(new UniqueValuesPool());
     $this->assertTrue($resolver->canResolve(new UniqueValue('', '')));
     $this->assertFalse($resolver->canResolve(new FakeValue()));
 }