Unit tests for listWorksheetNames() and listWorksheetInfo() with a ChartSheet

Author: MarkBaker

tests/PhpSpreadsheetTests/Reader/Xlsx/WorksheetInfoNamesTest.php

@@ -77,4 +77,29 @@ public function testListWorksheetNamesNamespace(): void
 
         self::assertEquals($expected, $actual);
     }
+
+    public function testListWorksheetNamesChartSheet(): void
+    {
+        $filename = 'tests/data/Reader/XLSX/ChartSheet.xlsx';
+        $reader = new Xlsx();
+        $actual = $reader->listWorksheetNames($filename);
+
+        $expected = ['Sheet1', 'Chart1'];
+
+        self::assertEquals($expected, $actual);
+    }
+
+    public function testListWorksheetInfoChartSheet(): void
+    {
+        $filename = 'tests/data/Reader/XLSX/ChartSheet.xlsx';
+        $reader = new Xlsx();
+        $actual = $reader->listWorksheetInfo($filename);
+
+        $chartSheetInfo = $actual[1];
+
+        self::assertSame('Chart1', $chartSheetInfo['worksheetName']);
+        self::assertSame(-1, $chartSheetInfo['lastColumnIndex']);
+        self::assertSame(0, $chartSheetInfo['totalRows']);
+        self::assertSame(0, $chartSheetInfo['totalColumns']);
+    }
 }