XCUITest_instrumentssample.py

#!/usr/bin/env python

import subprocess
import sys, os
from multiprocessing import Pool

def pre_req(workspace_path):
    if '.xcworkspace' in workspace_path and os.path.exists(workspace_path):
        device_ids = list_device_ids()
        run_xcuitest(workspace_path, device_ids)
    else:
        print('Please provide a valid path to a xcworkspace')


def run_xcuitest(workspace_path, devices):
    # Create a multiprocessing Pool
    pool = Pool()
    parameters = []
    for device in devices:
        parameters.append((workspace_path, device))
    process_log = pool.map(execute_xcuitest, parameters)
    #pool.close()
    #pool.join()


def execute_xcuitest(data):
    workspace_path = data[0]
    device_id = data[1]
    xcui_test_command = 'xcodebuild -workspace {workspace_path} -scheme UIKitCatalogUITest -destination id={device_id} test'.format(workspace_path=workspace_path,
                                                                                                                                      device_id=device_id).split(" ")
    print(xcui_test_command)
    test_logs = subprocess.Popen(xcui_test_command,
                                   stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    print('-----------{device_id}--------------'.format(device_id=device_id))
    error_log = test_logs.stderr.read()
    print('xxxxxxxxxxxxxxxxxx')
    print(error_log)
    print('xxxxxxxxxxxxxxxxxx')
    print(test_logs.stdout.read())
    print('-------------------------')

# Call instruments to get all devices
def list_device_ids():
    start = "["; end = "]"
    instrument_command = 'instruments -s devices'
    black_list = ['Known', 'Simulator', 'MacBook']
    device_list = subprocess.Popen(instrument_command.split(" "),
                                   stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    device_list_string = device_list.stdout.read()
    physical_devices = []
    for device in device_list_string.splitlines():
        if not any(x in device for x in black_list):
            physical_devices.append(device[device.find(start)+len(start):device.rfind(end)])
    return physical_devices

def main():
    if len(sys.argv) > 1:
        pre_req(sys.argv[1])
    else:
        print('Please provide a path to the workspace')
        exit(1)

if __name__ == "__main__":
    main()

WE can just call multiple --destination instead of separate processes, but this is just a POC on running xcodebuild command in parallel