Skip failed test.

Author: oraluben

tests/test_exceptions.py

@@ -3,6 +3,8 @@
 
 import pytest
 
+import env  # noqa: F401
+
 from pybind11_tests import exceptions as m
 import pybind11_cross_module_tests as cm
 
@@ -43,7 +45,14 @@ def test_cross_module_exceptions():
     with pytest.raises(StopIteration) as excinfo:
         cm.throw_stop_iteration()
 
-    with pytest.raises(KeyError) as excinfo:
+
+# TODO: FIXME
+@pytest.mark.skipif(
+    "env.PYPY and env.MACOS",
+    reason="Known failure with PyPy and libc++ (Issue #2847 & PR #2999)",
+)
+def test_cross_module_exception_translator():
+    with pytest.raises(KeyError) as _:
         # translator registered in cross_module_tests
         m.throw_should_be_translated_to_key_error()