How to test view controller with XIB file using Quick?

Question

I'm using Quick library for unit testing.

I'm trying to test ViewController, view of which is made as XIB.

I connected view with file owner, and view component with view controller.

And for viewDidLoad test, I accessed view to trigger viewDidLoad().

Here's my code.

override func spec() {
    super.spec()

    var sut: QuestionViewController!

    describe("viewDidLoad") {
        afterEach {
            sut = nil
        }
        beforeEach {
            sut = QuestionViewController(question: "Q1")
            _ = sut.view
        }

        it("renders question header text") {
            expect(sut.headerLabel.text).toEventually(equal("Q1"))
        }
    }

}

But when run the test, nothing happens with just 'test fail'. I setup break point inside spec(), but it just pass through.(nothing happens)

After removing xib file and make UI components programmatically, the test finally succeeded.

How to test ViewController(viewDidLoad etc.) that contains xib file when using Quick?

score 0 · Accepted Answer · answered Dec 11 '18 at 10:06

Probably in your QuestionViewController init you have similar code to this:

init(question:String) {
    //do something with a question
    super.init(nibName:"QuestionNibFileName", bundle: nil)
}

And this is working fine in your main target but doesn't work in test, because here default bundle is different. You should use Bundle(for:type(of:self)) so the code should look like this:

init(question:String) {
    //do something with a question
    let bundle = Bundle(for:type(of:self))
    super.init(nibName:"QuestionNibFileName", bundle: bundle)
}

How to test view controller with XIB file using Quick?

1 Answers1