SebastianBergmann\PHPLOC\SingleTest::testPrintedResultContainsHeadings PHP Method

    public function testPrintedResultContainsHeadings()
    {
        ob_start();
        $this->single->printResult('php://output', $this->sample_row);
        $output = ob_get_clean();
        $this->assertRegExp('#Directories,Files.+$#is', $output, 'Printed result does not contain a heading line');
    }