Merge pull request #205 from magento-commerce/imported-fredden-magento-coding-standard-426

[Imported] Fix PHP error with short class names

Author: sidolov

Magento2/Sniffs/Less/ClassNamingSniff.php

@@ -67,7 +67,7 @@ public function process(File $phpcsFile, $stackPtr)
             );
         }
 
-        if (strpos($className, self::STRING_HELPER_CLASSES_PREFIX, 2) !== false
+        if (strlen($className) > 1 && strpos($className, self::STRING_HELPER_CLASSES_PREFIX, 2) !== false
             && !str_starts_with($className, 'admin__')
         ) {
             $phpcsFile->addError(

Magento2/Tests/Less/ClassNamingUnitTest.less

@@ -31,6 +31,11 @@
   background: green;
 }
 
+// @see https://github.com/magento/magento-coding-standard/issues/425
+.a {
+  text-decoration: none;
+}
+
 // @see https://github.com/magento/magento-coding-standard/issues/409
 .admin__allowed {
   background: green;