We should be able to parametrize tests for pathlib's ReadablePath.copy(), e.g.:

• Copy from Path to Path
• Copy from Path to WritableZipPath
• Copy from ReadableZipPath to Path
• Copy from ReadableZipPath to WritableZipPath

Unfortunately this breaks some deep assumptions in the existing test classes, so I think we should create new suites somewhere in test.test_pathlib.

Linked PRs

• GH-130614: Add test suites for readable and writable pathlib paths #130648
• GH-130614: pathlib ABCs: retain original separator in with_name() #130990
• GH-130614: pathlib ABCs: support alternate separator in full_match() #130991
• GH-130614: pathlib ABCs: revise test suite for path joining #130988
• GH-130614: pathlib ABCs: revise test suite for Windows path joining #131016
• GH-130614: pathlib ABCs: revise test suite for Posix path joining #131017
• GH-130614: pathlib ABCs: revise test suite for readable paths #131018
• GH-130614: pathlib ABCs: revise test suite for writable paths #131112
• GH-130614: pathlib ABCs: parametrize test suite for path copying #131168
• GH-130614: pathlib ABCs: delete vestigial test_pathlib_abc module #131215
• GH-130614: pathlib ABCs: improve support for receiving path metadata #131259