KIF and Quick/Nimble

I'm trying to get KIF and Quick/Nimble for iOS playing together nicely, so I can use QuickSpecs for my KIF tests.

My test currently looks like this:

class HomeSceenSpec: QuickSpec {

    override func spec() {
        describe("Home screen") {
            it("should have a failing test") {
                let tester = self.tester()
                tester.waitForViewWithAccessibilityLabel("Blah")
            }
        }
    }
}

The text 'Blah' doesn't exist and the test should fail. failWithException:stopTest: is being called but it isn't raising an exception or causing the QuickSpec test to fail.

How do I integrate these two technologies?

It looks like there may be an issue with failWithException:stopTest: calling recordFailureWithDescription:inFile:atLine:expected:. (There's a good deal of swizzling going on with that method).

The solution I came to was to create a category/extension on QuickSpec:

import Quick
import Nimble
import KIF

extension QuickSpec {

    func tester(_ file : String = __FILE__, _ line : Int = __LINE__) -> KIFUITestActor {
        return KIFUITestActor(inFile: file, atLine: line, delegate: self)
    }

    func system(_ file : String = __FILE__, _ line : Int = __LINE__) -> KIFSystemTestActor {
        return KIFSystemTestActor(inFile: file, atLine: line, delegate: self)
    }

    override public func failWithException(exception: NSException!, stopTest stop: Bool) {
        if let userInfo = exception.userInfo {
            fail(exception.description,
                file: userInfo["SenTestFilenameKey"] as String,
                line: userInfo["SenTestLineNumberKey"] as UInt)
        } else {
            fail(exception.description)
        }
    }
}