Merge pull request #61 from josegonzalez/issue-34

Fix error message when not able to find a previous date

2 files changed, 8 insertions, 1 deletions

diff --git a/src/croniter/croniter.py b/src/croniter/croniter.py
index 327326f..5cc2f41 100644
--- a/src/croniter/croniter.py
+++ b/src/croniter/croniter.py
@@ -363,7 +363,9 @@ class croniter(object):
                 continue
             return self._datetime_to_timestamp(dst.replace(microsecond=0))
 
-        raise Exception("failed to find prev date")
+        if is_prev:
+            raise Exception("failed to find prev date")
+        raise Exception("failed to find next date")
 
     def _get_next_nearest(self, x, to_check):
         small = [item for item in to_check if item < x]
diff --git a/src/croniter/tests/test_croniter.py b/src/croniter/tests/test_croniter.py
index 0baa9c0..55b81a2 100755
--- a/src/croniter/tests/test_croniter.py
+++ b/src/croniter/tests/test_croniter.py
@@ -388,6 +388,11 @@ class CroniterTest(base.TestCase):
         self.assertEqual(n6.month, 2)
         self.assertEqual(n6.day, 16)
 
+    def test_bug34(self):
+        base = datetime(2012, 2, 24, 0, 0, 0)
+        itr = croniter('* * 31 2 *', base)
+        n1 = itr.get_next(datetime)
+
     def test_rangeGenerator(self):
         base = datetime(2013, 3, 4, 0, 0)
         itr = croniter('1-9/2 0 1 * *', base)