Pass the tests only if we find an expected positive output (rather than...

Pass the tests only if we find an expected positive output (rather than checking for negative output to fail the tests).

ci/ios/deploy_and_run_x86_64_binary_on_ios_simulator.py

@@ -80,15 +80,15 @@ def run_app_on_simulator():
 	print 'Running app'
 	try:
 		test_run = subprocess.Popen(['xcrun', 'simctl', 'launch', '--console', 'booted', 'com.rust.unittests'], stdout=subprocess.PIPE, bufsize=1, universal_newlines=True)
-		test_run_failed = False
+		test_run_passed = False
 		for line in test_run.stdout:
 			sys.stdout.write(line)
-			if test_run_failed == False:
+			if test_run_passed == False:
 				# Based on all.rs test output
-				test_run_failed = 'some tests failed' in line
+				test_run_passed = 'PASSED' in line and 'tests' in line
 		
 		sys.stdout.flush()
-		if test_run_failed == True:
+		if test_run_passed == False:
 			raise Exception('Some tests failed')
 	finally:
 		print 'Shutting down simulator'