Add tests for BadZipFile handling

Note that the functional test does not actually detect the behavioral
change of throwing unhandled `BadZipFile` → throwing unhandled
`InvalidWheel`, whereas the unit test does.

tests/data/packages/corruptwheel-1.0-py2.py3-none-any.whl

@@ -0,0 +1 @@
+This is a corrupt wheel which _clearly_ is not a zip file.

tests/functional/test_install_wheel.py

@@ -45,13 +45,20 @@ def test_install_from_future_wheel_version(script, tmpdir):
     result.assert_installed("futurewheel", without_egg_link=True, editable=False)
 
 
-def test_install_from_broken_wheel(script, data):
+@pytest.mark.parametrize(
+    "wheel_name",
+    [
+        "brokenwheel-1.0-py2.py3-none-any.whl",
+        "corruptwheel-1.0-py2.py3-none-any.whl",
+    ],
+)
+def test_install_from_broken_wheel(script, data, wheel_name):
     """
     Test that installing a broken wheel fails properly
     """
     from tests.lib import TestFailure
 
-    package = data.packages.joinpath("brokenwheel-1.0-py2.py3-none-any.whl")
+    package = data.packages.joinpath(wheel_name)
     result = script.pip("install", package, "--no-index", expect_error=True)
     with pytest.raises(TestFailure):
         result.assert_installed("futurewheel", without_egg_link=True, editable=False)

tests/unit/test_wheel.py

@@ -252,6 +252,15 @@ def test_wheel_root_is_purelib(text: str, expected: bool) -> None:
     assert wheel.wheel_root_is_purelib(message_from_string(text)) == expected
 
 
+def test_dist_from_broken_wheel_fails(data) -> None:
+    from pip._internal.exceptions import InvalidWheel
+    from pip._internal.metadata import get_wheel_distribution, FilesystemWheel
+
+    package = data.packages.joinpath("corruptwheel-1.0-py2.py3-none-any.whl")
+    with pytest.raises(InvalidWheel):
+        get_wheel_distribution(FilesystemWheel(package), "brokenwheel")
+
+
 class TestWheelFile:
     def test_unpack_wheel_no_flatten(self, tmpdir: Path) -> None:
         filepath = os.path.join(DATA_DIR, "packages", "meta-1.0-py2.py3-none-any.whl")