Remove support for PHPUnit < 11

Author: LukeTowers

modules/system/console/scaffold/test/phpunit.stub

@@ -1,13 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit backupGlobals="false"
-         backupStaticAttributes="false"
-         bootstrap="../../../modules/system/tests/bootstrap/app.php"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
-         processIsolation="false"
-         stopOnFailure="false"
+<phpunit
+    bootstrap="../../../modules/system/tests/bootstrap/app.php"
+    colors="true"
 >
     <testsuites>
         <testsuite name="Unit">

modules/system/tests/bootstrap/TestCase.php

@@ -85,55 +85,26 @@ public static function setProtectedProperty($object, $name, $value)
     }
 
     /**
-     * Stub for `assertFileNotExists` to allow compatibility with both PHPUnit 8 and 9.
-     *
-     * @param string $filename
-     * @param string $message
-     * @return void
+     * Stub for `assertFileNotExists`
      */
     public static function assertFileNotExists(string $filename, string $message = ''): void
     {
-        if (method_exists(Assert::class, 'assertFileDoesNotExist')) {
-            Assert::assertFileDoesNotExist($filename, $message);
-            return;
-        }
-
-        Assert::assertFileNotExists($filename, $message);
+        Assert::assertFileDoesNotExist($filename, $message);
     }
 
     /**
-     * Stub for `assertRegExp` to allow compatibility with both PHPUnit 8 and 9.
-     *
-     * @param string $pattern
-     * @param string $string
-     * @param string $message
-     * @return void
+     * Stub for `assertRegExp`
      */
     public static function assertRegExp(string $pattern, string $string, string $message = ''): void
     {
-        if (method_exists(Assert::class, 'assertMatchesRegularExpression')) {
-            Assert::assertMatchesRegularExpression($pattern, $string, $message);
-            return;
-        }
-
-        Assert::assertRegExp($pattern, $string, $message);
+        Assert::assertMatchesRegularExpression($pattern, $string, $message);
     }
 
     /**
-     * Stub for `assertObjectHasAttribute` to allow compatibility with both PHPUnit 9 and 10.
-     *
-     * @param string $propertyName
-     * @param object $object
-     * @param string $message
-     * @return void
+     * Stub for `assertObjectHasAttribute`
      */
     public static function assertObjectHasAttribute(string $propertyName, $object, string $message = ''): void
     {
-        if (method_exists(Assert::class, 'assertObjectHasProperty')) {
-            Assert::assertObjectHasProperty($propertyName, $object, $message);
-            return;
-        }
-
-        Assert::assertObjectHasAttribute($propertyName, $object, $message);
+        Assert::assertObjectHasProperty($propertyName, $object, $message);
     }
 }

phpunit.xml

@@ -1,12 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    backupGlobals="false"
-    backupStaticProperties="false"
     bootstrap="./modules/system/tests/bootstrap/app.php"
     cacheDirectory=".phpunit.result.cache"
     colors="true"
-    processIsolation="false"
-    stopOnFailure="false"
     xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd"
 >
   <testsuites>