Cannot access AppDelegate while testing Xcode proj

问题:

This question already has an answer here:

Cannot cast App Delegate to App Delegate in Tests (1 answer)

Closed 2 years ago.

func testExample() {
    let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
    // some code ...
}

The above function always crash and gives this error:

Could not cast value of type 'MyAppName.AppDelegate' (0x10dc09e80) to 'MyAppNameTests.AppDelegate' (0x11cc190c0).

回答1:

You are probably compiling AppDelegate into your test target. Don't do this.

Instead, only compile into your normal app target MyAppName. In you test class write in XCode 7

@testable import MyAppName

and before XCode 7

import MyAppName