I try to use KIF in swift project. I run test case on iPhone simulator. Probably I did not set up correctly KIF because use it first time. I used this manual
Test fails in this simple code
func testSelectingOrganizerRole() {
tester().tapView(withAccessibilityLabel: "ORGANIZE")
}
A button with Accessibility label "ORGANIZE" exists on initial ViewConroller of storyboard.

Why don't you switch to the UI tests framework available since Xcode 7? A quick intro:
Using this framework, your simple test would look like this: