(A part of) Remove Internet Explorer dependencies from tests. (#888)

* test: Remove commented-out debug prints from `test_casesensitivity.py`.

Removes old, commented-out `print` statements that were used for debugging
during development and are no longer needed. This cleans up the test file.

* test: Replace Internet Explorer COM objects with `MSVidCtlLib` in `test_casesensitivity.py`.

The `test_casesensitivity.py` file has been updated to remove its dependency
on Internet Explorer's `shdocvw.dll` COM objects. The test now uses
`MSVidCtlLib` interfaces instead. This is part of the ongoing effort to reduce
`comtypes`'s reliance on Internet Explorer components in tests.

* refactor: Rename `test_ie.py` to `test_eventinterface.py` for preparing IE-independent event testing.

The `test_ie.py` file is planned for refactoring to test `comtypes`' event handling
mechanism without relying on Internet Explorer. The primary goal is to
verify how `GetEvents` behaves when the `interface` argument is explicitly
specified versus when it is omitted, using an object that has multiple
outgoing event interfaces.

* docs: Add test perspective comments to `test_eventinterface.py`.

* build: Update ruff ignores for renamed test file.

In `pyproject.toml`, the `per-file-ignores` configuration for ruff
has been updated. The entry for `comtypes/test/test_ie.py` is
changed to `comtypes/test/test_eventinterface.py` to reflect the
recent file rename.

Author: junkmd

comtypes/test/test_casesensitivity.py

@@ -1,41 +1,31 @@
+import contextlib
 import unittest
 
 from comtypes.client import GetModule
 
-iem = GetModule("shdocvw.dll")
+with contextlib.redirect_stdout(None):  # supress warnings
+    GetModule("msvidctl.dll")
+from comtypes.gen import MSVidCtlLib as msvidctl
 
 
 class TestCase(unittest.TestCase):
     def test(self):
-        from comtypes.client import GetModule
-
-        iem = GetModule("shdocvw.dll")
-
         # IDispatch(IUnknown)
-        # IWebBrowser(IDispatch)
-        # IWebBrowserApp(IWebBrowser)
-        # IWebBrowser2(IWebBrowserApp)
-
-        # print iem.IWebBrowser2.mro()
-
-        self.assertTrue(issubclass(iem.IWebBrowser2, iem.IWebBrowserApp))
-        self.assertTrue(issubclass(iem.IWebBrowserApp, iem.IWebBrowser))
+        # IMSVidDevice(IDispatch)
+        # IMSVidInputDevice(IMSVidDevice)
+        # IMSVidPlayback(IMSVidOutputDevice)
 
-        # print sorted(iem.IWebBrowser.__map_case__.keys())
-        # print "=" * 42
-        # print sorted(iem.IWebBrowserApp.__map_case__.keys())
-        # print "=" * 42
-        # print sorted(iem.IWebBrowser2.__map_case__.keys())
-        # print "=" * 42
+        self.assertTrue(issubclass(msvidctl.IMSVidPlayback, msvidctl.IMSVidInputDevice))
+        self.assertTrue(issubclass(msvidctl.IMSVidInputDevice, msvidctl.IMSVidDevice))
 
         # names in the base class __map_case__ must also appear in the
         # subclass.
-        for name in iem.IWebBrowser.__map_case__:
-            self.assertTrue(name in iem.IWebBrowserApp.__map_case__, f"{name} missing")
-            self.assertTrue(name in iem.IWebBrowser2.__map_case__, f"{name} missing")
+        for name in msvidctl.IMSVidDevice.__map_case__:
+            self.assertIn(name, msvidctl.IMSVidInputDevice.__map_case__)
+            self.assertIn(name, msvidctl.IMSVidPlayback.__map_case__)
 
-        for name in iem.IWebBrowserApp.__map_case__:
-            self.assertTrue(name in iem.IWebBrowser2.__map_case__, f"{name} missing")
+        for name in msvidctl.IMSVidInputDevice.__map_case__:
+            self.assertIn(name, msvidctl.IMSVidPlayback.__map_case__)
 
 
 if __name__ == "__main__":

comtypes/test/test_ie.py comtypes/test/test_eventinterface.pycomtypes/test/test_ie.py renamed to comtypes/test/test_eventinterface.py

@@ -6,6 +6,9 @@
 
 
 def setUpModule():
+    # The primary goal is to verify how `GetEvents` behaves when the
+    # `interface` argument is explicitly specified versus when it is omitted,
+    # using an object that has multiple outgoing event interfaces.
     raise ut.SkipTest(
         "External test dependencies like this seem bad.  Find a different built-in "
         "win32 API to use."

pyproject.toml

@@ -88,7 +88,7 @@ ignore = ["E402"]
 "comtypes/test/test_agilent.py" = ["F401", "F841"]
 "comtypes/test/test_client.py" = ["F401"]
 "comtypes/test/test_dict.py" = ["F841"]
-"comtypes/test/test_ie.py" = ["F841"]
+"comtypes/test/test_eventinterface.py" = ["F841"]
 "comtypes/test/test_outparam.py" = ["F841"]
 "comtypes/test/test_sapi.py" = ["E401"]
 "comtypes/test/test_server.py" = ["F401", "F841"]