Fix XLSX broken vertical align font style (#2619)

* Fix XLSX broken vertical align font style

* Add fix information to changelog

* Fix phpcs issues

Author: hoogi91

CHANGELOG.md

@@ -25,6 +25,8 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ### Fixed
 
+- Fixed behaviour of XLSX font style vertical align settings
+
 ## 1.22.0 - 2022-02-18
 
 ### Added

src/PhpSpreadsheet/Reader/Xlsx/Styles.php

@@ -119,7 +119,7 @@ public function readFontStyle(Font $fontStyle, SimpleXMLElement $fontStyleXml):
         }
         if (isset($fontStyleXml->vertAlign)) {
             $attr = $this->getStyleAttributes($fontStyleXml->vertAlign);
-            if (!isset($attr['val'])) {
+            if (isset($attr['val'])) {
                 $verticalAlign = strtolower((string) $attr['val']);
                 if ($verticalAlign === 'superscript') {
                     $fontStyle->setSuperscript(true);

tests/PhpSpreadsheetTests/Reader/Xlsx/VerticalAlignTest.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheetTests\Reader\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\IOFactory;
+use PHPUnit\Framework\TestCase;
+
+class VerticalAlignTest extends TestCase
+{
+    public function testVerticalAlignStyle(): void
+    {
+        $filename = 'tests/data/Reader/XLSX/verticalAlignTest.xlsx';
+        $reader = IOFactory::createReader('Xlsx');
+        $sheet = $reader->load($filename)->getActiveSheet();
+
+        self::assertTrue($sheet->getCell('A1')->getStyle()->getFont()->getSuperscript());
+        self::assertFalse($sheet->getCell('A1')->getStyle()->getFont()->getSubscript());
+
+        self::assertTrue($sheet->getCell('B1')->getStyle()->getFont()->getSubscript());
+        self::assertFalse($sheet->getCell('B1')->getStyle()->getFont()->getSuperscript());
+
+        self::assertFalse($sheet->getCell('C1')->getStyle()->getFont()->getSubscript());
+        self::assertFalse($sheet->getCell('C1')->getStyle()->getFont()->getSuperscript());
+    }
+}