diff --git a/tests/PhpSpreadsheetTests/Worksheet/ColumnDimensionTest.php b/tests/PhpSpreadsheetTests/Worksheet/ColumnDimensionTest.php
new file mode 100644
index 00000000..1f31fdb9
--- /dev/null
+++ b/tests/PhpSpreadsheetTests/Worksheet/ColumnDimensionTest.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheetTests\Worksheet;
+
+use PhpOffice\PhpSpreadsheet\Worksheet\ColumnDimension;
+use PHPUnit\Framework\TestCase;
+
+class ColumnDimensionTest extends TestCase
+{
+    public function testInstantiateColumnDimensionDefault()
+    {
+        $expected = 'A';
+        $columnDimension = new ColumnDimension();
+        self::assertInstanceOf(ColumnDimension::class, $columnDimension);
+        $result = $columnDimension->getColumnIndex();
+        self::assertEquals($expected, $result);
+    }
+
+    public function testGetAndSetColumnIndex()
+    {
+        $expected = 'B';
+        $columnDimension = new ColumnDimension();
+        $columnDimension->setColumnIndex($expected);
+        $result = $columnDimension->getColumnIndex();
+        self::assertSame($expected, $result);
+    }
+
+    public function testGetAndSetWidth()
+    {
+        $expected = 1.2;
+        $columnDimension = new ColumnDimension();
+        $columnDimension->setWidth($expected);
+        $result = $columnDimension->getWidth();
+        self::assertSame($expected, $result);
+    }
+
+    public function testGetAndSetAutoSize()
+    {
+        $expected = true;
+        $columnDimension = new ColumnDimension();
+        $columnDimension->setAutoSize($expected);
+        $result = $columnDimension->getAutoSize();
+        self::assertSame($expected, $result);
+    }
+}