diff --git a/tests/PhpSpreadsheetTests/Functional/ColumnWidthTest.php b/tests/PhpSpreadsheetTests/Functional/ColumnWidthTest.php
index 3f811adc..83c8f6ed 100644
--- a/tests/PhpSpreadsheetTests/Functional/ColumnWidthTest.php
+++ b/tests/PhpSpreadsheetTests/Functional/ColumnWidthTest.php
@@ -43,20 +43,26 @@ class ColumnWidthTest extends AbstractFunctional
         $spreadsheet = new Spreadsheet();
         $sheet = $spreadsheet->getActiveSheet();
         foreach (range(1, 5) as $row) {
-            $sheet->setCellValue("A{$row}", 'Hello World !');
+            $sheet->setCellValue("A{$row}", 'Hello');
+            $sheet->setCellValue("B{$row}", 'World !');
         }
 
         // isFilteredColumn iterates rowAttributes when calling the read filter
         $sheet->getRowDimension(5)->setRowHeight(10);
 
         $sheet->getColumnDimension('A')->setWidth(20);
+        $sheet->getColumnDimension('B')->setWidth(30);
         $this->assertColumn($spreadsheet);
+        $this->assertColumn($spreadsheet, 'B', 30);
 
         // A reader-customeiser closure and ReadFilter implementation that skips rows >4
         $readerCustomizer = function ($reader) {
             $readFilterStub = $this->createMock(IReadFilter::class);
             $readFilterStub->method('readCell')
                 ->willReturnCallback(function ($column, $row, $worksheetName = '') {
+                    if ($column == 'B') {
+                        return false;
+                    }
                     return $row <= 4;
                 });
             $reader->setReadFilter($readFilterStub);
@@ -65,15 +71,23 @@ class ColumnWidthTest extends AbstractFunctional
         // Save and reload a filtered set and assert the same width
         $reloadedSpreadsheet = $this->writeAndReload($spreadsheet, $format, $readerCustomizer);
         $this->assertColumn($reloadedSpreadsheet);
+        $this->assertNotColumn($reloadedSpreadsheet, 'B', 30);
     }
 
-    private function assertColumn(Spreadsheet $spreadsheet): void
+    private function assertColumn(Spreadsheet $spreadsheet, $column = 'A', $expected = 20): void
     {
         $sheet = $spreadsheet->getActiveSheet();
         $columnDimensions = $sheet->getColumnDimensions();
 
-        self::assertArrayHasKey('A', $columnDimensions);
-        $column = array_shift($columnDimensions);
-        self::assertEquals(20, $column->getWidth());
+        self::assertArrayHasKey($column, $columnDimensions);
+        self::assertEquals($expected, $columnDimensions[$column]->getWidth());
+    }
+
+    private function assertNotColumn(Spreadsheet $spreadsheet, $column = 'A', $expected = 20): void
+    {
+        $sheet = $spreadsheet->getActiveSheet();
+        $columnDimensions = $sheet->getColumnDimensions();
+
+        self::assertArrayNotHasKey($column, $columnDimensions);
     }
 }