public function testMerge()
{
$fpdi = $this->getMock('\\FPDI', array('setSourceFile', 'importPage', 'getTemplateSize', 'AddPage', 'useTemplate', 'Output'));
$fpdi->expects($this->at(2))->method('importPage')->will($this->returnValue(2));
$fpdi->expects($this->at(4))->method('getTemplateSize')->will($this->returnValue(array(10, 20)));
$fpdi->expects($this->once())->method('Output')->will($this->returnValue('merged'));
$m = new Merger($fpdi);
$m->addRaw('');
$m->addRaw('');
$this->assertEquals('merged', $m->merge());
}