Updates for PHPUnit 10 and PHP 7.4/8.0 deprecations

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-version: ['7.4', '8.0', '8.1', '8.2']
+        php-version: ['8.1', '8.2', '8.3']
 
     steps:
       - uses: actions/checkout@v3
@@ -17,7 +17,7 @@ jobs:
       - name: PHPUnit Tests
         uses: php-actions/phpunit@master
         with:
-          version: 9.6
+          version: 10
           bootstrap: vendor/autoload.php
           configuration: phpunit.xml.dist
           args: --coverage-text

composer.json

@@ -11,10 +11,10 @@
     }
   ],
   "require": {
-    "php": "7.4.* || 8.0.* || 8.1.* || 8.2.*"
+    "php": "8.1.* || 8.2.* || 8.3.*"
   },
   "require-dev": {
-    "phpunit/phpunit": "~9.0"
+    "phpunit/phpunit": "~10.0"
   },
   "autoload": {
     "psr-4": {

phpunit.xml.dist

@@ -1,13 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" bootstrap="vendor/autoload.php" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
-  <coverage>
-    <include>
-      <directory>src</directory>
-    </include>
-  </coverage>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" bootstrap="vendor/autoload.php" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.4/phpunit.xsd">
+  <coverage/>
   <testsuites>
     <testsuite name="Cron Test Suite">
       <directory>tests</directory>
     </testsuite>
   </testsuites>
+  <source>
+    <include>
+      <directory>src</directory>
+    </include>
+  </source>
 </phpunit>

src/Cron/CronExpression.php

@@ -77,20 +77,19 @@ class CronExpression
     ];
 
     /**
-     * Time zone
-     *
      * @var DateTimeZone|null
      */
-    protected $timeZone = null;
+    protected readonly ?DateTimeZone $timeZone;
 
     /**
-     * Matching registers
-     *
      * @var array|null
      */
-    protected $registers = null;
+    protected readonly ?array $registers;
 
-    protected $expression;
+    /**
+     * @var string
+     */
+    protected readonly string $expression;
 
     /**
      * @param string $expression a cron expression, e.g. "* * * * *"

tests/Cron/CronExpressionTest.php

@@ -33,7 +33,7 @@ public function testParser(string $expression, bool $valid = false, string $when
     /**
      * @return array
      */
-    public function parserTestProvider()
+    public static function parserTestProvider()
     {
         return [
             ["* * * * *",                      true, 'now', true],
@@ -163,7 +163,7 @@ public function testGetNext(string $expression, int $timestampCurrent, int $time
     /**
      * @return array
      */
-    public function getNextProvider()
+    public static function getNextProvider()
     {
         return [
             ['* * 13 * fri', 1400407467, 1402610400],