[HttpFoundation] Fix volatile MongoDbSessionHandlerTest::testRead()

Author: nicolas-grekas

src/Symfony/Component/HttpFoundation/Tests/Session/Storage/Handler/MongoDbSessionHandlerTest.php

@@ -87,7 +87,7 @@ public function testRead()
 
         // defining the timeout before the actual method call
         // allows to test for "greater than" values in the $criteria
-        $testTimeout = time();
+        $testTimeout = time() + 1;
 
         $collection->expects($this->once())
             ->method('findOne')