Add tests around our new handling of exceptions

sigmavirus24 · sigmavirus24 · commit 903b448a5a6e · 2017-05-20T20:17:38.000-05:00
diff --git a/tests/test_main.py b/tests/test_main.py
@@ -0,0 +1,21 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from twine import __main__ as dunder_main
+
+import pretend
+
+
+def test_exception_handling(monkeypatch):
+    replaced_dispatch = pretend.raiser(KeyError('foo'))
+    monkeypatch.setattr(dunder_main, 'dispatch', replaced_dispatch)
+    assert dunder_main.main() == 'KeyError: foo'
