new_contents: # 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'
  
subject: Add tests around our new handling of exceptions