diff --git a/tests/kohana/ValidateTest.php b/tests/kohana/ValidateTest.php
index 89cdec3aa..8bfcc5b9b 100644
--- a/tests/kohana/ValidateTest.php
+++ b/tests/kohana/ValidateTest.php
@@ -863,11 +863,27 @@ public function test_check($array, $rules, $callbacks, $expected, $expected_erro
 		$this->assertSame($expected, $validate->check());
 	}
 
-	public function unit_test_callback(Validate $array, $field)
+	public function unit_test_callback(Validate $array, $field, $parameters = array())
 	{
 		return;
 	}
 
+	public function test_object_callback_with_parameters()
+	{
+		$params = array(42, 'kohana' => 'rocks');
+
+		$validate = Validate::factory(array('foo' => 'bar'));
+
+		$mock = $this->getMock(__CLASS__);
+		$mock->expects($this->once())
+			->method('unit_test_callback')
+			->with($this->equalTo($validate), $this->equalTo('foo'), $this->equalTo($params));
+
+		$validate->callback('foo', array($mock, 'unit_test_callback'), $params);
+
+		$validate->check();
+	}
+
 	/*public function provider_errors()
 	{
 		// [data, rules, expected], ...