--- ../test/ClientTlsContextTest.php	2026-07-25 14:55:01.198732005 +0300
+++ ../test/ClientTlsContextTest.php	2026-07-25 14:58:59.555373804 +0300
@@ -4,10 +4,11 @@
 
 use Amp\Socket;
 use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\Attributes\DataProvider;
 
 class ClientTlsContextTest extends TestCase
 {
-    public function minimumVersionDataProvider(): array
+    public static function minimumVersionDataProvider(): array
     {
         return [
             [ClientTlsContext::TLSv1_0],
@@ -17,9 +18,7 @@
         ];
     }
 
-    /**
-     * @dataProvider minimumVersionDataProvider
-     */
+    #[DataProvider('minimumVersionDataProvider')]
     public function testWithMinimumVersion(int $version): void
     {
         $context = new ClientTlsContext();
@@ -29,16 +28,14 @@
         self::assertSame($version, $clonedContext->getMinimumVersion());
     }
 
-    public function minimumVersionInvalidDataProvider(): array
+    public static function minimumVersionInvalidDataProvider(): array
     {
         return [
             [-1],
         ];
     }
 
-    /**
-     * @dataProvider minimumVersionInvalidDataProvider
-     */
+    #[DataProvider('minimumVersionInvalidDataProvider')]
     public function testWithMinimumVersionInvalid(int $version): void
     {
         $this->expectException(\Error::class);
@@ -47,7 +44,7 @@
         (new ClientTlsContext())->withMinimumVersion($version);
     }
 
-    public function peerNameDataProvider(): array
+    public static function peerNameDataProvider(): array
     {
         return [
             ['127.0.0.1'],
@@ -55,9 +52,7 @@
         ];
     }
 
-    /**
-     * @dataProvider peerNameDataProvider
-     */
+    #[DataProvider('peerNameDataProvider')]
     public function testWithPeerName(string $peerName): void
     {
         $context = new ClientTlsContext();
@@ -110,7 +105,7 @@
         self::assertFalse($options['verify_peer_name']);
     }
 
-    public function certificateDataProvider(): array
+    public static function certificateDataProvider(): array
     {
         return [
             [null],
@@ -118,9 +113,7 @@
         ];
     }
 
-    /**
-     * @dataProvider certificateDataProvider
-     */
+    #[DataProvider('certificateDataProvider')]
     public function testWithCertificate(?Certificate $certificate): void
     {
         $context = new ClientTlsContext();
@@ -130,7 +123,7 @@
         self::assertSame($certificate, $clonedContext->getCertificate());
     }
 
-    public function verifyDepthDataProvider(): array
+    public static function verifyDepthDataProvider(): array
     {
         return [
             [0],
@@ -138,9 +131,7 @@
         ];
     }
 
-    /**
-     * @dataProvider verifyDepthDataProvider
-     */
+    #[DataProvider('verifyDepthDataProvider')]
     public function testWithVerificationDepth(int $verifyDepth): void
     {
         $context = new ClientTlsContext();
@@ -150,7 +141,7 @@
         self::assertSame($verifyDepth, $clonedContext->getVerificationDepth());
     }
 
-    public function verifyDepthInvalidDataProvider(): array
+    public static function verifyDepthInvalidDataProvider(): array
     {
         return [
             [-1],
@@ -158,9 +149,7 @@
         ];
     }
 
-    /**
-     * @dataProvider verifyDepthInvalidDataProvider
-     */
+    #[DataProvider('verifyDepthInvalidDataProvider')]
     public function testWithVerificationDepthInvalid(int $verifyDepth): void
     {
         $this->expectException(\Error::class);
@@ -169,7 +158,7 @@
         (new ClientTlsContext())->withVerificationDepth($verifyDepth);
     }
 
-    public function ciphersDataProvider(): array
+    public static function ciphersDataProvider(): array
     {
         return [
             ['ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256'],
@@ -177,9 +166,7 @@
         ];
     }
 
-    /**
-     * @dataProvider ciphersDataProvider
-     */
+    #[DataProvider('ciphersDataProvider')]
     public function testWithCiphers(string $ciphers): void
     {
         $context = new ClientTlsContext();
@@ -189,7 +176,7 @@
         self::assertSame($ciphers, $clonedContext->getCiphers());
     }
 
-    public function caFileDataProvider(): array
+    public static function caFileDataProvider(): array
     {
         return [
             [null],
@@ -197,9 +184,7 @@
         ];
     }
 
-    /**
-     * @dataProvider caFileDataProvider
-     */
+    #[DataProvider('caFileDataProvider')]
     public function testWithCaFile(?string $caFile): void
     {
         $context = new ClientTlsContext();
@@ -209,7 +194,7 @@
         self::assertSame($caFile, $clonedContext->getCaFile());
     }
 
-    public function caPathDataProvider(): array
+    public static function caPathDataProvider(): array
     {
         return [
             [null],
@@ -217,9 +202,7 @@
         ];
     }
 
-    /**
-     * @dataProvider caPathDataProvider
-     */
+    #[DataProvider('caPathDataProvider')]
     public function testWithCaPath(?string $caPath): void
     {
         $context = new ClientTlsContext();
@@ -265,7 +248,7 @@
         self::assertFalse($clonedContext->hasSni());
     }
 
-    public function invalidSecurityLevelDataProvider(): array
+    public static function invalidSecurityLevelDataProvider(): array
     {
         return [
             [-1],
@@ -273,9 +256,7 @@
         ];
     }
 
-    /**
-     * @dataProvider invalidSecurityLevelDataProvider
-     */
+    #[DataProvider('invalidSecurityLevelDataProvider')]
     public function testWithSecurityLevelInvalid(int $level): void
     {
         $this->expectException(\Error::class);
@@ -297,7 +278,7 @@
         self::assertSame(4, $contextB->getSecurityLevel());
     }
 
-    public function validSecurityLevelDataProvider(): array
+    public static function validSecurityLevelDataProvider(): array
     {
         return [
             [0],
@@ -310,10 +291,9 @@
     }
 
     /**
-     * @dataProvider validSecurityLevelDataProvider
-     *
      * @param int $level Security level
      */
+    #[DataProvider('validSecurityLevelDataProvider')]
     public function testWithSecurityLevelValid(int $level): void
     {
         if (Socket\hasTlsSecurityLevelSupport()) {