TST: Skip tests that are not currently supported in wasm

3 files changed, 9 insertions, 3 deletions

diff --git a/numpy/lib/tests/test_format.py b/numpy/lib/tests/test_format.py
index 08878a1f9..ab9472020 100644
--- a/numpy/lib/tests/test_format.py
+++ b/numpy/lib/tests/test_format.py
@@ -283,7 +283,7 @@ from io import BytesIO
 import numpy as np
 from numpy.testing import (
     assert_, assert_array_equal, assert_raises, assert_raises_regex,
-    assert_warns, IS_PYPY,
+    assert_warns, IS_PYPY, IS_WASM
     )
 from numpy.testing._private.utils import requires_memory
 from numpy.lib import format
@@ -459,6 +459,7 @@ def test_long_str():
     assert_array_equal(long_str_arr, long_str_arr2)
 
 
+@pytest.mark.skipif(IS_WASM, reason="memmap doesn't work correctly")
 @pytest.mark.slow
 def test_memmap_roundtrip(tmpdir):
     for i, arr in enumerate(basic_arrays + record_arrays):
@@ -526,6 +527,7 @@ def test_load_padded_dtype(tmpdir, dt):
     assert_array_equal(arr, arr1)
 
 
+@pytest.mark.xfail(IS_WASM, reason="Emscripten NODEFS has a buggy dup")
 def test_python2_python3_interoperability():
     fname = 'win64python2.npy'
     path = os.path.join(os.path.dirname(__file__), 'data', fname)
@@ -675,6 +677,7 @@ def test_version_2_0():
     assert_raises(ValueError, format.write_array, f, d, (1, 0))
 
 
+@pytest.mark.skipif(IS_WASM, reason="memmap doesn't work correctly")
 def test_version_2_0_memmap(tmpdir):
     # requires more than 2 byte for header
     dt = [(("%d" % i) * 100, float) for i in range(500)]
diff --git a/numpy/lib/tests/test_function_base.py b/numpy/lib/tests/test_function_base.py
index 88d4987e6..c5b31ebf4 100644
--- a/numpy/lib/tests/test_function_base.py
+++ b/numpy/lib/tests/test_function_base.py
@@ -15,7 +15,7 @@ from numpy import ma
 from numpy.testing import (
     assert_, assert_equal, assert_array_equal, assert_almost_equal,
     assert_array_almost_equal, assert_raises, assert_allclose, IS_PYPY,
-    assert_warns, assert_raises_regex, suppress_warnings, HAS_REFCOUNT,
+    assert_warns, assert_raises_regex, suppress_warnings, HAS_REFCOUNT, IS_WASM
     )
 import numpy.lib.function_base as nfb
 from numpy.random import rand
@@ -3754,6 +3754,7 @@ class TestMedian:
         b[2] = np.nan
         assert_equal(np.median(a, (0, 2)), b)
 
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work correctly")
     def test_empty(self):
         # mean(empty array) emits two warnings: empty slice and divide by 0
         a = np.array([], dtype=float)
diff --git a/numpy/lib/tests/test_io.py b/numpy/lib/tests/test_io.py
index a5462749f..4699935ca 100644
--- a/numpy/lib/tests/test_io.py
+++ b/numpy/lib/tests/test_io.py
@@ -25,7 +25,7 @@ from numpy.testing import (
     assert_warns, assert_, assert_raises_regex, assert_raises,
     assert_allclose, assert_array_equal, temppath, tempdir, IS_PYPY,
     HAS_REFCOUNT, suppress_warnings, assert_no_gc_cycles, assert_no_warnings,
-    break_cycles
+    break_cycles, IS_WASM
     )
 from numpy.testing._private.utils import requires_memory
 
@@ -243,6 +243,7 @@ class TestSavezLoad(RoundtripTest):
         assert_equal(a, l.f.file_a)
         assert_equal(b, l.f.file_b)
 
+    @pytest.mark.skipif(IS_WASM, reason="Cannot start thread")
     def test_savez_filename_clashes(self):
         # Test that issue #852 is fixed
         # and savez functions in multithreaded environment
@@ -2539,6 +2540,7 @@ class TestPathUsage:
                 break_cycles()
                 break_cycles()
 
+    @pytest.mark.xfail(IS_WASM, reason="memmap doesn't work correctly")
     def test_save_load_memmap_readwrite(self):
         # Test that pathlib.Path instances can be written mem-mapped.
         with temppath(suffix='.npy') as path: