CI: musllinux_x86_64 (#22864)

[ci skip]

3 files changed, 23 insertions, 3 deletions

diff --git a/numpy/core/tests/test_mem_policy.py b/numpy/core/tests/test_mem_policy.py
index d5dfbc38b..79abdbf1e 100644
--- a/numpy/core/tests/test_mem_policy.py
+++ b/numpy/core/tests/test_mem_policy.py
@@ -5,7 +5,7 @@ import pytest
 import numpy as np
 import threading
 import warnings
-from numpy.testing import extbuild, assert_warns, IS_WASM
+from numpy.testing import extbuild, assert_warns, IS_WASM, IS_MUSL
 import sys
 
 
@@ -358,6 +358,7 @@ def test_thread_locality(get_module):
     assert np.core.multiarray.get_handler_name() == orig_policy_name
 
 
+@pytest.mark.xfail(IS_MUSL, reason="gh23050")
 @pytest.mark.slow
 def test_new_policy(get_module):
     a = np.arange(10)
diff --git a/numpy/core/tests/test_umath.py b/numpy/core/tests/test_umath.py
index 65c0310da..a019b6be3 100644
--- a/numpy/core/tests/test_umath.py
+++ b/numpy/core/tests/test_umath.py
@@ -17,7 +17,7 @@ from numpy.testing import (
     assert_, assert_equal, assert_raises, assert_raises_regex,
     assert_array_equal, assert_almost_equal, assert_array_almost_equal,
     assert_array_max_ulp, assert_allclose, assert_no_warnings, suppress_warnings,
-    _gen_alignment_data, assert_array_almost_equal_nulp, IS_WASM
+    _gen_alignment_data, assert_array_almost_equal_nulp, IS_WASM, IS_MUSL
     )
 from numpy.testing._private.utils import _glibc_older_than
 
@@ -1747,6 +1747,7 @@ class TestLDExp:
 class TestFRExp:
     @pytest.mark.parametrize("stride", [-4,-2,-1,1,2,4])
     @pytest.mark.parametrize("dtype", ['f', 'd'])
+    @pytest.mark.xfail(IS_MUSL, reason="gh23048")
     @pytest.mark.skipif(not sys.platform.startswith('linux'),
                         reason="np.frexp gives different answers for NAN/INF on windows and linux")
     def test_frexp(self, dtype, stride):
@@ -3855,6 +3856,7 @@ class TestComplexFunctions:
             assert_almost_equal(fz.real, fr, err_msg='real part %s' % f)
             assert_almost_equal(fz.imag, 0., err_msg='imag part %s' % f)
 
+    @pytest.mark.xfail(IS_MUSL, reason="gh23049")
     @pytest.mark.xfail(IS_WASM, reason="doesn't work")
     def test_precisions_consistent(self):
         z = 1 + 1j
@@ -3865,6 +3867,7 @@ class TestComplexFunctions:
             assert_almost_equal(fcf, fcd, decimal=6, err_msg='fch-fcd %s' % f)
             assert_almost_equal(fcl, fcd, decimal=15, err_msg='fch-fcl %s' % f)
 
+    @pytest.mark.xfail(IS_MUSL, reason="gh23049")
     @pytest.mark.xfail(IS_WASM, reason="doesn't work")
     def test_branch_cuts(self):
         # check branch cuts and continuity on them
@@ -3891,6 +3894,7 @@ class TestComplexFunctions:
         _check_branch_cut(np.arccosh, [0-2j, 2j, 2], [1,  1,  1j], 1, 1)
         _check_branch_cut(np.arctanh, [0-2j, 2j, 0], [1,  1,  1j], 1, 1)
 
+    @pytest.mark.xfail(IS_MUSL, reason="gh23049")
     @pytest.mark.xfail(IS_WASM, reason="doesn't work")
     def test_branch_cuts_complex64(self):
         # check branch cuts and continuity on them
@@ -3936,6 +3940,7 @@ class TestComplexFunctions:
                 b = cfunc(p)
                 assert_(abs(a - b) < atol, "%s %s: %s; cmath: %s" % (fname, p, a, b))
 
+    @pytest.mark.xfail(IS_MUSL, reason="gh23049")
     @pytest.mark.xfail(IS_WASM, reason="doesn't work")
     @pytest.mark.parametrize('dtype', [np.complex64, np.complex_, np.longcomplex])
     def test_loss_of_precision(self, dtype):
diff --git a/numpy/testing/_private/utils.py b/numpy/testing/_private/utils.py
index 351bd2a81..44092f185 100644
--- a/numpy/testing/_private/utils.py
+++ b/numpy/testing/_private/utils.py
@@ -16,6 +16,7 @@ from tempfile import mkdtemp, mkstemp
 from unittest.case import SkipTest
 from warnings import WarningMessage
 import pprint
+import sysconfig
 
 import numpy as np
 from numpy.core import(
@@ -36,7 +37,7 @@ __all__ = [
         'SkipTest', 'KnownFailureException', 'temppath', 'tempdir', 'IS_PYPY',
         'HAS_REFCOUNT', "IS_WASM", 'suppress_warnings', 'assert_array_compare',
         'assert_no_gc_cycles', 'break_cycles', 'HAS_LAPACK64', 'IS_PYSTON',
-        '_OLD_PROMOTION'
+        '_OLD_PROMOTION', 'IS_MUSL'
         ]
 
 
@@ -56,6 +57,19 @@ HAS_LAPACK64 = numpy.linalg.lapack_lite._ilp64
 
 _OLD_PROMOTION = lambda: np._get_promotion_state() == 'legacy'
 
+IS_MUSL = False
+try:
+    from packaging.tags import sys_tags
+    _tags = list(sys_tags())
+    if 'musllinux' in _tags[0].platform:
+        IS_MUSL = True
+except ImportError:
+    # fallback to sysconfig (might be flaky)
+    # value could be None.
+    v = sysconfig.get_config_var('HOST_GNU_TYPE') or ''
+    if 'musl' in v:
+        IS_MUSL = True
+
 
 def assert_(val, msg=''):
     """