How to mock library in controllers tests?

[dhilst]

How to mock libraries in controllers tests?

I saw that the reset_instance() is called during the $this->request(...) call, so if I do

public function setUp()
{
     $this->CI->email = new Mock_Libraries_Email();
}

public function testFoo()
{
    $this->request(...)
}

The mocked library is never called. I would prefer to replace mock library by some vanilla createMock instance, but this way would already help.

[dhilst]

Okay, I find out, and in fact is covered in the documentation, sorry :)

The trick is to use setCallablePreConstructor() and load_class_instance to mock after the controller instantiation. Here is a sample

        $this->request->setCallablePreConstructor(function () use ($cmsEmailMock) {
            load_class_instance('cms_email', $cmsEmailMock);
        });
        $response = $this->request('POST', 'api/foo/',[])