public function test_getStatus_shouldReturnTheWorstStatus()
 {
     $result = new DiagnosticResult('Label');
     $this->assertEquals(DiagnosticResult::STATUS_OK, $result->getStatus());
     $result->addItem(new DiagnosticResultItem(DiagnosticResult::STATUS_WARNING));
     $this->assertEquals(DiagnosticResult::STATUS_WARNING, $result->getStatus());
     $result->addItem(new DiagnosticResultItem(DiagnosticResult::STATUS_ERROR));
     $this->assertEquals(DiagnosticResult::STATUS_ERROR, $result->getStatus());
 }