public function toArray()
    {
        return [
            'file' => $this->getMutationFileRelativePath(),
            'mutator' => $this->mutation->getMutator(),
            'class' => $this->mutation->getClass(),
            'method' => $this->mutation->getMethod(),
            'line' => $this->mutation->getLine(),
            'diff' => $this->getDiff(),
            'tests' => $this->testMethods
        ];
    }