gh-114099: Add test exclusions to support running the test suite on iOS (#114889)

Add test annotations required to run the test suite on iOS (PEP 730).

The majority of the change involve annotating tests that use subprocess,
but are skipped on Emscripten/WASI for other reasons, and including
iOS/tvOS/watchOS under the same umbrella as macOS/darwin checks.

`is_apple` and `is_apple_mobile` test helpers have been added to
identify *any* Apple platform, and "any Apple platform except macOS",
respectively.

1 files changed, 4 insertions, 4 deletions

diff --git a/Lib/test/support/os_helper.py b/Lib/test/support/os_helper.py
index 20f38fd36a8..22787e32b5f 100644
--- a/Lib/test/support/os_helper.py
+++ b/Lib/test/support/os_helper.py
@@ -22,8 +22,8 @@ TESTFN_ASCII = "{}_{}_tmp".format(TESTFN_ASCII, os.getpid())
 
 # TESTFN_UNICODE is a non-ascii filename
 TESTFN_UNICODE = TESTFN_ASCII + "-\xe0\xf2\u0258\u0141\u011f"
-if sys.platform == 'darwin':
-    # In Mac OS X's VFS API file names are, by definition, canonically
+if support.is_apple:
+    # On Apple's VFS API file names are, by definition, canonically
     # decomposed Unicode, encoded using UTF-8. See QA1173:
     # http://developer.apple.com/mac/library/qa/qa2001/qa1173.html
     import unicodedata
@@ -48,8 +48,8 @@ if os.name == 'nt':
                   'encoding (%s). Unicode filename tests may not be effective'
                   % (TESTFN_UNENCODABLE, sys.getfilesystemencoding()))
             TESTFN_UNENCODABLE = None
-# macOS and Emscripten deny unencodable filenames (invalid utf-8)
-elif sys.platform not in {'darwin', 'emscripten', 'wasi'}:
+# Apple and Emscripten deny unencodable filenames (invalid utf-8)
+elif not support.is_apple and sys.platform not in {"emscripten", "wasi"}:
     try:
         # ascii and utf-8 cannot encode the byte 0xff
         b'\xff'.decode(sys.getfilesystemencoding())