test: cloudevent equality bug regression (#171)

Signed-off-by: Alexander Tkachev <sasha64sasha@gmail.com>

cloudevents/tests/test_http_cloudevent.py

@@ -45,6 +45,18 @@ def non_exiting_attribute_name(dummy_event):
     return result
 
 
+@pytest.fixture(
+    params=(
+        1,
+        None,
+        object(),
+        "Hello World",
+    )
+)
+def non_cloudevent_value(request):
+    return request.param
+
+
 def test_http_cloudevent_equality(dummy_attributes, my_dummy_data, your_dummy_data):
     data = my_dummy_data
     event1 = CloudEvent(dummy_attributes, data)
@@ -69,6 +81,16 @@ def test_http_cloudevent_equality(dummy_attributes, my_dummy_data, your_dummy_da
     assert event1 != event2 and event3 != event1
 
 
+def test_http_cloudevent_equality_must_not_throw(dummy_event, non_cloudevent_value):
+    assert isinstance(dummy_event == non_cloudevent_value, bool)
+
+
+def test_http_cloudevent_must_not_equal_to_non_cloudevent_value(
+    dummy_event, non_cloudevent_value
+):
+    assert not dummy_event == non_cloudevent_value
+
+
 def test_http_cloudevent_mutates_equality(
     dummy_attributes, my_dummy_data, your_dummy_data
 ):