Add failing test illustrating missed expectation. Ref #330.

Author: jaraco

tests/fixtures.py

@@ -301,7 +301,7 @@ class ZipFixtures:
     def _fixture_on_path(self, filename):
         pkg_file = resources.files(self.root).joinpath(filename)
         file = self.resources.enter_context(resources.as_file(pkg_file))
-        assert file.name.startswith('example-'), file.name
+        assert file.name.startswith('example'), file.name
         sys.path.insert(0, str(file))
         self.resources.callback(sys.path.pop, 0)
 

tests/test_main.py

@@ -289,3 +289,11 @@ class PackagesDistributionsTest(fixtures.ZipFixtures, unittest.TestCase):
     def test_packages_distributions_example(self):
         self._fixture_on_path('example-21.12-py3-none-any.whl')
         assert packages_distributions()['example'] == ['example']
+
+    def test_packages_distributions_example2(self):
+        """
+        Test packages_distributions on a wheel built
+        by trampolim.
+        """
+        self._fixture_on_path('example2-1.0.0-py3-none-any.whl')
+        assert packages_distributions()['example2'] == ['example2']