Add test for play_card without card ID specified

Signed-off-by: Olivier Gayot <olivier.gayot@sigexec.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/test_swiftstory.py b/tests/test_swiftstory.py
index 51dc837..d340613 100644
--- a/tests/test_swiftstory.py
+++ b/tests/test_swiftstory.py
@@ -40,3 +40,10 @@ class TestSwiftStory(unittest.TestCase):
                 error("invalid command"),
                 SwiftStory.message_received_handler(client=None, message='{}')
                 )
+
+    def test_play_card_not_specified(self):
+        payload = '{"op": "play_white_card"}'
+        self.assertEqual(
+                error("field `card_id' is required"),
+                SwiftStory.message_received_handler(client=None, message=payload)
+                )