public function testGetWordsArrayFromEmptyString() { $correct = array(); $words = ''; $wordsAy = $this->genUtil->getWordsArray($words); $this->assertEquals($correct, $wordsAy, 'Words is empty string.'); $words = null; $wordsAy = $this->genUtil->getWordsArray($words); $this->assertEquals($correct, $wordsAy, 'Words is null.'); }