collections.abc.ValuesView is not sufficently tested

[sobolevn]

There are places where it is either not complete:

cpython/Lib/test/test_dictviews.py

Lines 338 to 340 in 49f6106

	self.assertIsInstance(d.values(), collections.abc.ValuesView)
	self.assertIsInstance(d.values(), collections.abc.MappingView)
	self.assertIsInstance(d.values(), collections.abc.Sized)

Not base classes are covered here. But, I guess it should be.

Or there are places where it is not tested at all:

cpython/Lib/test/test_collections.py

Lines 1866 to 1869 in 49f6106

	self.assertIsInstance(mymap.keys(), Set)
	self.assertIsInstance(mymap.keys(), KeysView)
	self.assertIsInstance(mymap.items(), Set)
	self.assertIsInstance(mymap.items(), ItemsView)

I will go through places like this and cover ValuesView.
Noticed while working on #98511

• PR: [3.11] gh-98512: Add more tests for ValuesView (GH-98515) #99035

• PR: [3.10] gh-98512: Add more tests for ValuesView (GH-98515) #99036

[hauntsaninja]

Thanks, looks like this is completed