DrupalUnitTest

drupal.unit.test.php

<?php
#tests/src/Unit/FibonacciServiceTest.php

namespace Drupal\Tests\drupalup_fibo\Unit;

use Drupal\Tests\UnitTestCase;
use Drupal\drupalup_fibo\FibonacciService;

/**
 * Our unit test for the fibonacci service.
 */
class FibonacciServiceTest extends UnitTestCase {

  /**
   *
   */
  public function testFifthFibonacciNumber() {
    $fibonacciService = new FibonacciService();
    $fiboSequence = $fibonacciService->calcSomeFibos(6);

    $this->assertEquals(
      $fiboSequence[4],
      3
    );
  }
}