Address vstinner review comments.

Author: bitdancer

Doc/library/test.rst

@@ -857,7 +857,7 @@ The :mod:`test.support` module defines the following functions:
    ``musl``, otherwise return a version triple, either ``(0, 0, 0)`` if the
    version is unknown, or the actual version if it is known.  Intended for use
    in ``skip`` decorators.  ``emscripten`` and ``wasi`` are assumed to be
-   compiled with ``musl``; othewise ``platform.libc_ver`` is checked.
+   compiled with ``musl``; otherwise ``platform.libc_ver`` is checked.
 
 
 .. function:: check_syntax_error(testcase, statement, errtext='', *, lineno=None, offset=None)

Lib/test/test_math.py

@@ -2772,8 +2772,8 @@ def test_fma_infinities(self):
         or (sys.platform == "android" and platform.machine() == "x86_64")
         or support.linked_to_musl(),  # gh-131032
         f"this platform doesn't implement IEE 754-2008 properly")
-    # XXX musl is fixed but the fix is not yet released; when the fixed version
-    # is known change this to:
+    # gh-131032: musl is fixed but the fix is not yet released; when the fixed
+    # version is known change this to:
     #   or support.linked_to_musl() < (1, <m>, <p>)
     def test_fma_zero_result(self):
         nonnegative_finites = [0.0, 1e-300, 2.3, 1e300]

Lib/test/test_os.py

@@ -2563,7 +2563,7 @@ def test_fpathconf(self):
         support.linked_to_musl(),
         'musl pathconf ignores the file descriptor and returns a constant',
         )
-    def test_fpathconf_with_bad_fd(self):
+    def test_fpathconf_bad_fd(self):
         self.check(os.pathconf, "PC_NAME_MAX")
         self.check(os.fpathconf, "PC_NAME_MAX")
 

Lib/test/test_support.py

@@ -747,10 +747,10 @@ def test_get_signal_name(self):
     def test_linked_to_musl(self):
         linked = support.linked_to_musl()
         self.assertIsNotNone(linked)
-        if support.is_wasi:
+        if support.is_wasi or support.is_emscripten:
             self.assertTrue(linked)
         # The value is cached, so make sure it returns the same value again.
-        self.assertEqual(linked, support.linked_to_musl())
+        self.assertIs(linked, support.linked_to_musl())
         # The unlike libc, the musl version is a triple.
         if linked:
             self.assertIsInstance(linked, tuple)