diff --git a/tests/Unit/AbstractVaultTest.php b/tests/Unit/AbstractVaultTest.php
index a5b9b85..10b50f8 100644
--- a/tests/Unit/AbstractVaultTest.php
+++ b/tests/Unit/AbstractVaultTest.php
@@ -5,17 +5,31 @@
 namespace Intervention\HttpAuth\Tests\Unit;
 
 use Intervention\HttpAuth\AbstractVault;
+use Intervention\HttpAuth\Directive;
+use Intervention\HttpAuth\Key;
 use PHPUnit\Framework\TestCase;
 
 final class AbstractVaultTest extends TestCase
 {
-    public function testConstructor(): void
+    private function getTestVault(string $realm, string $username, string $password): AbstractVault
     {
-        $vault = $this->getMockForAbstractClass(
-            AbstractVault::class,
-            ['myRealm', 'myUsername', 'myPassword']
-        );
+        return new class ($realm, $username, $password) extends AbstractVault
+        {
+            public function getDirective(): Directive
+            {
+                return new Directive('test');
+            }
+
+            public function unlocksWithKey(Key $key): bool
+            {
+                return false;
+            }
+        };
+    }
 
+    public function testConstructor(): void
+    {
+        $vault = $this->getTestVault('myRealm', 'myUsername', 'myPassword');
         $this->assertEquals('myUsername', $vault->getUsername());
         $this->assertEquals('myPassword', $vault->getPassword());
         $this->assertEquals('myRealm', $vault->getRealm());
@@ -23,30 +37,21 @@ public function testConstructor(): void
 
     public function testSetGetUsername(): void
     {
-        $vault = $this->getMockForAbstractClass(
-            AbstractVault::class,
-            ['myRealm', 'myUsername', 'myPassword']
-        );
+        $vault = $this->getTestVault('myRealm', 'myUsername', 'myPassword');
         $vault->withUsername('foo');
         $this->assertEquals('foo', $vault->getUsername());
     }
 
     public function testSetGetPassword(): void
     {
-        $vault = $this->getMockForAbstractClass(
-            AbstractVault::class,
-            ['myRealm', 'myUsername', 'myPassword']
-        );
+        $vault = $this->getTestVault('myRealm', 'myUsername', 'myPassword');
         $vault->withPassword('foo');
         $this->assertEquals('foo', $vault->getPassword());
     }
 
     public function testSetGetRealm(): void
     {
-        $vault = $this->getMockForAbstractClass(
-            AbstractVault::class,
-            ['myRealm', 'myUsername', 'myPassword']
-        );
+        $vault = $this->getTestVault('myRealm', 'myUsername', 'myPassword');
         $vault->withRealm('foo');
         $this->assertEquals('foo', $vault->getRealm());
     }
diff --git a/tests/Unit/Token/AbstractTokenTest.php b/tests/Unit/Token/AbstractTokenTest.php
index 5eede80..c9ae6e8 100644
--- a/tests/Unit/Token/AbstractTokenTest.php
+++ b/tests/Unit/Token/AbstractTokenTest.php
@@ -12,7 +12,14 @@ final class AbstractTokenTest extends AbstractTokenTestCase
 {
     public function testGetKey(): void
     {
-        $token = $this->getMockForAbstractClass(AbstractToken::class);
+        $token = new class () extends AbstractToken
+        {
+            public function parseProperties(): array
+            {
+                return [];
+            }
+        };
+
         $key = $token->getKey();
         $this->assertInstanceOf(Key::class, $key);
     }