PHPOffice / PhpSpreadsheet

        $worksheet->setTitle($title);

    }

    public function testSetTitleDuplicate()

    {

        // Create a Spreadsheet with three Worksheets (the first is created automatically)

        $spreadsheet = new Spreadsheet();

        $spreadsheet->createSheet();

        $spreadsheet->createSheet();

        // Set unique title -- should be unchanged

        $sheet = $spreadsheet->getSheet(0);

        $sheet->setTitle('Test Title');

        $this->assertSame('Test Title', $sheet->getTitle());

        // Set duplicate title -- should have numeric suffix appended

        $sheet = $spreadsheet->getSheet(1);

        $sheet->setTitle('Test Title');

        $this->assertSame('Test Title 1', $sheet->getTitle());

        // Set duplicate title with validation disabled -- should be unchanged

        $sheet = $spreadsheet->getSheet(2);

        $sheet->setTitle('Test Title', true, false);

        $this->assertSame('Test Title', $sheet->getTitle());

    }

    public function testSetCodeName()

    {

        $worksheet->setCodeName($codeName);

    }

    public function testSetCodeNameDuplicate()

    {

        // Create a Spreadsheet with three Worksheets (the first is created automatically)

        $spreadsheet = new Spreadsheet();

        $spreadsheet->createSheet();

        $spreadsheet->createSheet();

        // Set unique code name -- should be massaged to Snake_Case

        $sheet = $spreadsheet->getSheet(0);

        $sheet->setCodeName('Test Code Name');

        $this->assertSame('Test_Code_Name', $sheet->getCodeName());

        // Set duplicate code name -- should be massaged and have numeric suffix appended

        $sheet = $spreadsheet->getSheet(1);

        $sheet->setCodeName('Test Code Name');

        $this->assertSame('Test_Code_Name_1', $sheet->getCodeName());

        // Set duplicate code name with validation disabled -- should be unchanged, and unmassaged

        $sheet = $spreadsheet->getSheet(2);

        $sheet->setCodeName('Test Code Name', false);

        $this->assertSame('Test Code Name', $sheet->getCodeName());

    }

}