TranslationDataCollector example

use PHPUnit\Framework\TestCase;
use Symfony\Component\Translation\DataCollector\TranslationDataCollector;
use Symfony\Component\Translation\DataCollectorTranslator;

class TranslationDataCollectorTest extends TestCase
{
    public function testCollectEmptyMessages()
    {
        $translator = $this->getTranslator();
        $translator->expects($this->any())->method('getCollectedMessages')->willReturn([]);

        $dataCollector = new TranslationDataCollector($translator);
        $dataCollector->lateCollect();

        $this->assertEquals(0, $dataCollector->getCountMissings());
        $this->assertEquals(0, $dataCollector->getCountFallbacks());
        $this->assertEquals(0, $dataCollector->getCountDefines());
        $this->assertEquals([], $dataCollector->getMessages()->getValue());
    }

    public function testCollect()
    {
        $collectedMessages = [
            [