use phpunit v10

.gitignore

@@ -1,5 +1,4 @@
 /.build/
 /vendor/
 /.php-cs-fixer.cache
-/.phpunit.result.cache
 /composer.lock

.php-cs-fixer.dist.php

@@ -12,7 +12,7 @@
         '@Symfony:risky' => true,
         '@PHP81Migration' => true,
         '@PHP80Migration:risky' => true,
-        '@PHPUnit84Migration:risky' => true,
+        '@PHPUnit100Migration:risky' => true,
 
         'array_indentation' => true,
         'declare_strict_types' => true,

composer.json

@@ -19,7 +19,7 @@
     "require-dev": {
         "ext-intl": "*",
         "friendsofphp/php-cs-fixer": "^3.49",
-        "phpunit/phpunit": "^9.6",
+        "phpunit/phpunit": "^10.5",
         "vimeo/psalm": "^5.21"
     },
 
@@ -45,8 +45,8 @@
     "scripts": {
         "cs": "php-cs-fixer fix -v",
         "phpunit": "phpunit",
-        "phpunit-coverage": "phpdbg -qrr vendor/bin/phpunit --coverage-text",
-        "phpunit-coverage-html": "phpdbg -qrr vendor/bin/phpunit --coverage-html .build/coverage-html",
+        "phpunit-coverage": "phpunit --coverage-text",
+        "phpunit-coverage-html": "phpunit --coverage-html .build/coverage-html",
         "psalm": "psalm",
 
         "check": [

phpunit.xml.dist

@@ -1,11 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd"
     bootstrap="vendor/autoload.php"
     beStrictAboutOutputDuringTests="true"
-    beStrictAboutTestsThatDoNotTestAnything="false"
     beStrictAboutTodoAnnotatedTests="true"
+    displayDetailsOnIncompleteTests="true"
+    displayDetailsOnSkippedTests="true"
+    displayDetailsOnTestsThatTriggerDeprecations="true"
+    displayDetailsOnTestsThatTriggerNotices="true"
+    displayDetailsOnTestsThatTriggerWarnings="true"
+    displayDetailsOnTestsThatTriggerErrors="true"
+    failOnNotice="true"
+    failOnDeprecation="true"
+    failOnWarning="true"
+    failOnIncomplete="true"
+    failOnEmptyTestSuite="true"
     colors="true"
-    verbose="true"
+    cacheDirectory=".build/.phpunit.cache"
 >
     <php>
         <ini name="date.timezone" value="Europe/Berlin"/>
@@ -16,12 +26,12 @@
             <directory>tests/</directory>
         </testsuite>
     </testsuites>
-    <coverage>
+    <source>
         <include>
             <directory>src/</directory>
         </include>
         <exclude>
             <directory>src/Exception/</directory>
         </exclude>
-    </coverage>
+    </source>
 </phpunit>

tests/Base/IntlFormatterTest.php

@@ -5,20 +5,22 @@
 namespace HillValley\Fluxcap\Tests\Base;
 
 use HillValley\Fluxcap\Base\IntlFormatter;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\TestCase;
 
 /**
  * @internal
- * @covers \HillValley\Fluxcap\Base\IntlFormatter
  */
+#[CoversClass(IntlFormatter::class)]
 final class IntlFormatterTest extends TestCase
 {
     protected function tearDown(): void
     {
         \Locale::setDefault('de-DE');
     }
 
-    /** @dataProvider dataFormatDateTime */
+    #[DataProvider('dataFormatDateTime')]
     public function testFormatDateTime(string $expected, string $dateTime, string $locale, int $dateFormat, int $timeFormat = \IntlDateFormatter::NONE): void
     {
         \Locale::setDefault($locale);
@@ -27,7 +29,7 @@ public function testFormatDateTime(string $expected, string $dateTime, string $l
         self::assertSame($expected, IntlFormatter::formatDateTime($dateTime, $dateFormat, $timeFormat));
     }
 
-    public function dataFormatDateTime(): iterable
+    public static function dataFormatDateTime(): iterable
     {
         return [
             ['03/09/2020', '2020-09-03', 'en-GB', \IntlDateFormatter::SHORT],