ICM: Timeout tests added.

Author: dmitry-ivanov

tests/WithoutOverlappingTraitTest.php

@@ -41,6 +41,24 @@ public function mutex_timeout_can_be_set_to_null_by_protected_field()
         $this->assertNull((new NullTimeoutCommand)->getMutexTimeout());
     }
 
+    /** @test */
+    public function mutex_timeout_can_be_set_by_the_public_method()
+    {
+        $command = new GenericCommand;
+        $command->setMutexTimeout(5000);
+
+        $this->assertEquals(5000, $command->getMutexTimeout());
+    }
+
+    /** @test */
+    public function mutex_timeout_can_be_set_to_null_by_the_public_method()
+    {
+        $command = new GenericCommand;
+        $command->setMutexTimeout(null);
+
+        $this->assertNull($command->getMutexTimeout());
+    }
+
     /** @test */
     public function it_generates_mutex_name_based_on_the_command_name_and_arguments()
     {