ApiPlatform\Core\Tests\DataProvider\ChainCollectionDataProviderTest::testGetCollection PHP Method

    public function testGetCollection()
    {
        $dummy = new Dummy();
        $dummy->setName('Rosa');
        $dummy2 = new Dummy();
        $dummy2->setName('Parks');
        $firstDataProvider = $this->prophesize(CollectionDataProviderInterface::class);
        $firstDataProvider->getCollection(Dummy::class, null)->willReturn([$dummy, $dummy2])->willThrow(ResourceClassNotSupportedException::class);
        $secondDataProvider = $this->prophesize(CollectionDataProviderInterface::class);
        $secondDataProvider->getCollection(Dummy::class, null)->willReturn([$dummy, $dummy2]);
        $thirdDataProvider = $this->prophesize(CollectionDataProviderInterface::class);
        $thirdDataProvider->getCollection(Dummy::class, null)->willReturn([$dummy]);
        $chainItemDataProvider = new ChainCollectionDataProvider([$firstDataProvider->reveal(), $secondDataProvider->reveal(), $thirdDataProvider->reveal()]);
        $this->assertEquals([$dummy, $dummy2], $chainItemDataProvider->getCollection(Dummy::class));
    }