Added an integration test for kasko hang reports

chrome/test/kasko/py/kasko/report.py

Index: chrome/test/kasko/py/kasko/report.py
diff --git a/chrome/test/kasko/py/kasko/report.py b/chrome/test/kasko/py/kasko/report.py
index 6e0c350732b6583dcef240055e4dd27fc5ddd229..f70b53ba4c1728d31ccf0004553d76c6e57676d4 100755
--- a/chrome/test/kasko/py/kasko/report.py
+++ b/chrome/test/kasko/py/kasko/report.py
@@ -33,3 +33,12 @@ def ValidateCrashReport(report, expectations=None):
     if expected_key not in report:
       _LOGGER.error('Missing expected "%s" crash key.', expected_key)
       raise Exception('"%s" integration appears broken.' % error)
+
+
+def ValidateNonEmptyCrashKeys(report, expected_keys):

[chrisha, 2016/01/20 22:20:31]

You should be able to use the above validation logic without writing new logic.

[Patrick Monette, 2016/01/21 00:05:10]

Done.

+  for expected_key in expected_keys:
+    if expected_key not in report:
+      raise Exception('Missing expected "%s" crash key.', expected_key)
+
+    if report[expected_key] == '':
+      raise Exception('Empty value for expected key "%s".' % expected_key)