Private function error with PHPUnit testing

Question

I am getting the following error in my PHPunit test

Warning: Invalid callback Vc_Manager::__sleep, cannot access private method Vc_Manager::__sleep()

This is caused because the function __sleep() is private and the __contruct() function for the class is also private.

How can I using this function in my phpunit testing without turning the function public?

Full code:

require_once('../splitTestNew.php');



class SplitTestTest extends PHPUnit_Framework_TestCase
{


    public function setUp(){

    }
    public function tearDown(){ }
    /**
     * @runInSeparateProcess
     */
    public function testDefaultParameterValues()
    {

        $obj = new BSSplitTest();
        $this->assertTrue($obj->params['A'] == 50);
        $this->assertTrue($obj->params['B'] == 50);
        $this->assertTrue($obj->params['SplitCookieA'] == 'ACounter');
        $this->assertTrue($obj->params['SplitCookieB'] == 'BCounter');
        $this->assertTrue($obj->params['TableA'] == 'counter_a');
        $this->assertTrue($obj->params['TableB'] == 'counter_b');

    }

When testing libraries that I share the code with other modules in my application, I use Reflection (secure.php.net/manual/en/book.reflection.php) to validate internal variables or function processes to ensure that my library code works as I expect. Then my application testing uses the public methods to work with the library. — Steven Scott

the-noob the-noob · Accepted Answer · 2016-02-29T11:48:59

If your constructor is private then you can't have

 $obj = new BSSplitTest();

That implies your constructor is public, you'll need a static factory constructor.

 $obj = BSSplitTest::getInstance(); //or createInstance if not singleton

Private function error with PHPUnit testing

2 Answers