问题
How to run cucumber test on multiple devices at the same time on iOS platform(iPhone, iPad) ?
回答1:
On iOS 7 and above, this is not possible because Calabash requires the app to be launched by instruments and there can be only one instruments process alive at one time.
On iOS < 7, it is possible to test against multiple devices iff you manually launch the app before testing. There might be some work-arounds to automatically launch the app on the device (there are for the simulator), but they exist outside of Calabash. More problematic is that a significant (and growing) portion of the Calabash API requires that the app be launched using instruments.
On iOS < 7, use DEVICE_ENDPOINT and DEVICE_TARGET to specify which device to target.
# for iOS < 7 only
# device A
# launch the app manually on the device
$ DEVICE_ENDPOINT=<ip:port> DEVICE_TARGET=<udid> cucumber
# device B in another shell
# launch the app manually on the device
$ DEVICE_ENDPOINT=<ip:port> DEVICE_TARGET=<udid> cucumber
来源：https://stackoverflow.com/questions/24476849/run-cucumber-file-on-multiple-ios-devices