Add tests

Author: guillaume-ro-fr

tests/PhpSpreadsheetTests/Functional/PrintAreaTest.php

@@ -32,13 +32,18 @@ public function testPageSetup($format)
             $sheet->getPageSetup()->setPrintArea("A$i:B$i");
         }
 
+        $worksheet4 = $spreadsheet->createSheet()->setTitle("Sheet 4");
+        $worksheet4->getPageSetup()->setPrintArea("A4:B4,D1:E4");
+
         $reloadedSpreadsheet = $this->writeAndReload($spreadsheet, $format, function (BaseReader $reader) {
-            $reader->setLoadSheetsOnly(['Sheet 1', 'Sheet 3']);
+            $reader->setLoadSheetsOnly(['Sheet 1', 'Sheet 3', 'Sheet 4']);
         });
 
         $actual1 = $reloadedSpreadsheet->getSheetByName('Sheet 1')->getPageSetup()->getPrintArea();
         $actual3 = $reloadedSpreadsheet->getSheetByName('Sheet 3')->getPageSetup()->getPrintArea();
+        $actual4 = $reloadedSpreadsheet->getSheetByName('Sheet 4')->getPageSetup()->getPrintArea();
         self::assertSame('A1:B1', $actual1, 'should be able to write and read normal page setup');
         self::assertSame('A3:B3', $actual3, 'should be able to write and read page setup even when skipping sheets');
+        self::assertSame('A4:B4,D1:E4', $actual4, 'should be able to write and read page setup with multiple areas');
     }
 }