Merge pull request #19 from KentarouTakeda/chore-improve-tests

chore: improve tests

.github/workflows/run-tests.yml

@@ -19,14 +19,14 @@ jobs:
 
     strategy:
       matrix:
-        php: [8.1, 8.0, 7.4, 7.3, 7.2]
+        php: [8.4, 8.3, 8.2, 8.1, 8.0, 7.4, 7.3, 7.2]
         dependency-version: [prefer-lowest, prefer-stable]
 
     name: P${{ matrix.php }} - ${{ matrix.dependency-version }}
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2

.gitignore

@@ -1,3 +1,4 @@
 .idea
+.phpunit.result.cache
 composer.lock
 vendor