mock_objects.php
public function expectAtLeastOnce($method, $args = false, $message = '%s')
    {
        $this->expectMinimumCallCount($method, 1, $message);
        if ($args !== false) {
            $this->expect($method, $args, $message);
        }
    }
public function expectAtLeastOnce($method, $args = false, $message = '%s')
    {
        $this->expectMinimumCallCount($method, 1, $message);
        if ($args !== false) {
            $this->expect($method, $args, $message);
        }
    }
Convenience method for requiring a method call.

@param string $method       Method call to track.
@param array $args          Expected argument list or false for any arguments.
@param string $message      Overridden message.