Force the PHPStan job to install a version of PHPUnit

Author: stevegrunwell

.github/workflows/static-code-analysis.yml

@@ -19,5 +19,8 @@ jobs:
       - name: Install Composer dependencies
         uses: ramsey/composer-install@v2
 
+      - name: Install PHPUnit
+        run: composer test -- --version
+
       - name: Run PHPStan
         run: composer static-analysis

src/Exceptions/SelectorException.php

@@ -2,6 +2,9 @@
 
 namespace SteveGrunwell\PHPUnit_Markup_Assertions\Exceptions;
 
+/**
+ * Base exception for selector-related issues.
+ */
 class SelectorException extends \InvalidArgumentException
 {
 }