more unit tests

tests/test_coding/test_concurrent.py

@@ -56,6 +56,11 @@ class TestConcurrent(unittest.TestCase):
 
         fc = FutureCollection((PythonFuture() for i in range(3)))
         self.assertEqual(len(fc), 3)
+        fc.set_running_or_notify_cancel()
+        fc.set_exception(IndexError())
+        fc = FutureCollection((PythonFuture() for i in range(3)))
+        self.assertRaises(WouldWaitMore, lambda: fc.result(0.5))
+        self.assertRaises(WouldWaitMore, lambda: fc.exception(0.5))
 
     def test_future_collection_callbacks_one(self):
         a = {'count': 0}