drop phpunit 9 support

README.md

@@ -347,10 +347,10 @@ container:
 
 ## Version Guidance
 
-| Version | Released     | PHPUnit            | Status   |
-|---------|--------------|--------------------|----------|
-| 5.x     | Jan 23, 2024 | 9.x, 10.x and 11.x | Latest   |
-| 4.x     | Mar 28, 2019 | 8.x and 9.x        | Bugfixes |
-| 3.x     | Mar 5, 2018  | 7.x                | Bugfixes |
-| 2.x     | May 9, 2017  | 6.x                | Bugfixes |
-| 1.x     | Jul 4, 2016  | 4.x and 5.x        | EOL      |
+| Version | Released     | PHPUnit     | Status   |
+|---------|--------------|-------------|----------|
+| 5.x     | Jan 23, 2024 | 9.x, 10.x   | Latest   |
+| 4.x     | Mar 28, 2019 | 8.x and 9.x | Bugfixes |
+| 3.x     | Mar 5, 2018  | 7.x         | Bugfixes |
+| 2.x     | May 9, 2017  | 6.x         | Bugfixes |
+| 1.x     | Jul 4, 2016  | 4.x and 5.x | EOL      |

composer.json

@@ -15,8 +15,8 @@
     "require": {
         "php": "^8.1",
         "matthiasnoback/symfony-config-test": "^5.0",
-        "phpunit/phpunit": "^9.6 || ^10.0 || ^11.0",
-        "sebastian/exporter": "^4.0 || ^5.0 || ^6.0",
+        "phpunit/phpunit": "^10.0 || ^11.0",
+        "sebastian/exporter": " ^5.0 || ^6.0",
         "symfony/dependency-injection": "^5.4 || ^6.2 || ^7.0",
         "symfony/config": "^5.4 || ^6.2 || ^7.0",
         "symfony/yaml": "^5.4 || ^6.2 || ^7.0"

phpunit-10.xml.dist

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         beStrictAboutOutputDuringTests="true"
+         beStrictAboutTodoAnnotatedTests="true"
+         colors="true"
+>
+    <testsuites>
+        <testsuite name="SymfonyDependencyInjectionTest">
+            <directory>Tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <coverage>
+        <include>
+            <directory suffix=".php">./</directory>
+        </include>
+        <exclude>
+            <directory>./Tests</directory>
+            <directory>./vendor</directory>
+        </exclude>
+    </coverage>
+</phpunit>