[ios] Updates test_runner.py to output a test results json file.

ios/build/bots/scripts/test_runner.py

Index: ios/build/bots/scripts/test_runner.py
diff --git a/ios/build/bots/scripts/test_runner.py b/ios/build/bots/scripts/test_runner.py
index 8027d65a9e8da3d3683aabe1eeabde49b8901344..924cb2cc1111c49017899571648b66f6f14a31a1 100644
--- a/ios/build/bots/scripts/test_runner.py
+++ b/ios/build/bots/scripts/test_runner.py
@@ -178,6 +178,13 @@ class TestRunner(object):
     self.xcode_version = xcode_version
     self.xctest_path = ''
 
+    self.test_results = collections.OrderedDict()

[smut, 2017/01/09 21:16:12]

Does order matter?

[rohitrao (ping after 24h), 2017/01/09 21:32:34]

Nope.  I was originally trying to match what summary.json does, but that's no
longer important since I'm not yet attempting to merge the two files.

+    self.test_results['version'] = 3
+    self.test_results['path_delimiter'] = '.'
+    self.test_results['seconds_since_epoch'] = int(time.time())
+    # This will be overwritten when the tests complete successfully.
+    self.test_results['interrupted'] = True
+
     if xctest:
       plugins_dir = os.path.join(self.app_path, 'PlugIns')
       if not os.path.exists(plugins_dir):
@@ -320,6 +327,21 @@ class TestRunner(object):
         else:
           raise
 
+      # Build test_results.json
+      self.test_results['interrupted'] = result.crashed
+      self.test_results['num_failures_by_type'] = {
+        'FAIL': len(failed) + len(flaked),
+        'PASS': len(passed),
+        }
+      tests = collections.OrderedDict()
+      for test in passed:
+        tests[test] = { 'expected': 'PASS', 'actual': 'PASS' }
+      for test, _ in failed:
+        tests[test] = { 'expected': 'PASS', 'actual': 'FAIL' }
+      for test, _ in flaked:
+        tests[test] = { 'expected': 'PASS', 'actual': 'FAIL' }
+      self.test_results['tests'] = tests
+
       self.logs['passed tests'] = passed
       for test, log_lines in failed.iteritems():
         self.logs[test] = log_lines