Code signing is required for product type 'Unit Test Bundle' in SDK 'iOS 11.0.1'

Code signing is required for product type 'Unit Test Bundle' in SDK 'iOS 11.0.1'

进入 projects and lists ,如图

1. Select your tests target
2. Set "Code Signing"->"Code Signing Identity" to your developer identity
3. Build
   Hope this solves it for you.