symfony
diff --git a/‎src/Symfony/Component/Scheduler/Tests/Generator/MessageGeneratorTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Scheduler/Tests/Generator/MessageGeneratorTest.php
+3-5Lines changed: 3 additions & 5 deletions b/‎src/Symfony/Component/Scheduler/Tests/Generator/MessageGeneratorTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Scheduler/Tests/Generator/MessageGeneratorTest.php
+3-5Lines changed: 3 additions & 5 deletions
@@ -14,6 +14,7 @@
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Cache\Adapter\ArrayAdapter;
 use Symfony\Component\Clock\ClockInterface;
+use Symfony\Component\Clock\MockClock;
 use Symfony\Component\Scheduler\Generator\Checkpoint;
 use Symfony\Component\Scheduler\Generator\MessageContext;
 use Symfony\Component\Scheduler\Generator\MessageGenerator;
@@ -131,10 +132,7 @@ public function testYieldedContext()
 
     public function testCheckpointSavedInBrokenLoop()
     {
-        $now = self::makeDateTime('22:12:00');
-
-        $clock = $this->createMock(ClockInterface::class);
-        $clock->method('now')->willReturnReference($now);
+        $clock = new MockClock(self::makeDateTime('22:12:00'));
 
         $message = $this->createMessage((object) ['id' => 'message'], '22:13:00', '22:14:00', '22:16:00');
         $schedule = (new Schedule())->add($message);
@@ -148,7 +146,7 @@ public function testCheckpointSavedInBrokenLoop()
         // Warmup. The first run is always returns nothing.
         $this->assertSame([], iterator_to_array($scheduler->getMessages(), false));
 
-        $now = self::makeDateTime('22:13:10');
+        $clock->sleep(60 + 10); // 22:13:10
 
         foreach ($scheduler->getMessages() as $message) {
             // Message is handled but loop is broken just after