Iterating over results results in nothing.

Had to add a dummy yield to make __iter__ be a generator.

2 files changed, 5 insertions, 0 deletions

diff --git a/bgproc.py b/bgproc.py
index 73aa052..10dd2f4 100644
--- a/bgproc.py
+++ b/bgproc.py
@@ -46,3 +46,5 @@ class BackgroundProcessing(object):
 
     def __iter__(self):
         '''Iterate over immediately available results.'''
+        if False:
+            yield
diff --git a/bgproc_tests.py b/bgproc_tests.py
index 5dbe53c..17bc4fc 100644
--- a/bgproc_tests.py
+++ b/bgproc_tests.py
@@ -38,3 +38,6 @@ class BackgroundProcessingTests(unittest.TestCase):
     def test_wait_for_results_returns_false_initially(self):
         self.assertEqual(self.bg.wait_for_results(), False)
 
+    def test_iterates_to_empty_list_initially(self):
+        self.assertEqual(list(self.bg), [])
+