Show more stack trace in instrumentation tests.

build/android/pylib/instrumentation/instrumentation_test_instance_test.py

 #!/usr/bin/env python
 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 
 """Unit tests for instrumentation.TestRunner."""
 
 # pylint: disable=W0212
 
@@ skipping 86 matching lines @@
       (-2, {
         'class': 'test.package.TestClass',
         'test': 'testMethod',
       }),
     ]
     results = instrumentation_test_instance.GenerateTestResults(
         None, None, statuses, 0, 1000)
     self.assertEqual(1, len(results))
     self.assertEqual(base_test_result.ResultType.FAIL, results[0].GetType())
 
+  def testGenerateTestResults_testUnknownException(self):
+    stacktrace = 'long\nstacktrace'
+    statuses = [
+      (1, {
+        'class': 'test.package.TestClass',
+        'test': 'testMethod',
+      }),
+      (-1, {
+        'class': 'test.package.TestClass',
+        'test': 'testMethod',
+        'stack': stacktrace,
+      }),
+    ]
+    results = instrumentation_test_instance.GenerateTestResults(
+        None, None, statuses, 0, 1000)
+    self.assertEqual(1, len(results))
+    self.assertEqual(base_test_result.ResultType.FAIL, results[0].GetType())
+    self.assertEqual(stacktrace, results[0].GetLog())
+
 
 if __name__ == '__main__':
   unittest.main(verbosity=2)