private function findFixtures(array $fixtures = [])
    {
        $fixturesPath = $this->getFixturePath();

        $filesToSearch = ['*Fixture.php'];
        $findAll = ($fixtures === []);

        if (!$findAll) {
            $filesToSearch = [];

            foreach ($fixtures as $fileName) {
                $filesToSearch[] = $fileName . 'Fixture.php';
            }
        }

        $files = FileHelper::findFiles($fixturesPath, ['only' => $filesToSearch]);
        $foundFixtures = [];

        foreach ($files as $fixture) {
            $foundFixtures[] = $this->getFixtureRelativeName($fixture);
        }

        return $foundFixtures;
    }