/** * @expectedException \Box\Spout\Writer\Exception\InvalidSheetNameException * @return void */ public function testSetSheetNameShouldThrowWhenNameIsAlreadyUsed() { $customSheetName = 'Sheet name'; $sheet = new Sheet(0); $sheet->setName($customSheetName); $sheet = new Sheet(1); $sheet->setName($customSheetName); }