public function testReportHeaderInConstructor()
{
$report = new Report('', 'string for test text values');
$this->assertEquals('string for test text values', $report->getHeader());
$report = new Report('', '<div>test for html values</div>');
$this->assertEquals('<div>test for html values</div>', $report->getHeader());
$report = new Report('', '');
$this->assertEquals('', $report->getHeader());
}