fix 83: collections.OrderedDict (safe_) dump to !!omap (reported by Frazer McLean)0.13.6

1 files changed, 20 insertions, 0 deletions

diff --git a/_test/test_collections.py b/_test/test_collections.py
new file mode 100644
index 0000000..638dde5
--- /dev/null
+++ b/_test/test_collections.py
@@ -0,0 +1,20 @@
+# coding: utf-8
+
+"""
+collections.OrderedDict is a new class not supported by PyYAML (issue 83 by Frazer McLean)
+
+This is now so integrated in Python that it can be mapped to !!omap
+
+"""
+
+import pytest    # NOQA
+import ruamel.yaml   # NOQA
+from collections import OrderedDict
+
+
+from roundtrip import round_trip, dedent, round_trip_load, round_trip_dump  # NOQA
+
+
+class TestOrderedDict:
+    def test_ordereddict(self):
+        assert ruamel.yaml.dump(OrderedDict()) == '!!omap []\n'