4 files changed, 65 insertions, 2 deletions
diff --git a/numpy/array_api/tests/test_array_object.py b/numpy/array_api/tests/test_array_object.py
index 12479d765..1fe1dfddf 100644
--- a/numpy/array_api/tests/test_array_object.py
+++ b/numpy/array_api/tests/test_array_object.py
@@ -4,6 +4,7 @@ from numpy.testing import assert_raises
 import numpy as np
 
 from .. import ones, asarray, result_type, all, equal
+from .._array_object import Array
 from .._dtypes import (
     _all_dtypes,
     _boolean_dtypes,
@@ -97,7 +98,7 @@ def test_operators():
         "__mul__": "numeric",
         "__ne__": "all",
         "__or__": "integer_or_boolean",
-        "__pow__": "floating",
+        "__pow__": "numeric",
         "__rshift__": "integer",
         "__sub__": "numeric",
         "__truediv__": "floating",
@@ -301,3 +302,23 @@ def test_device_property():
 
     assert all(equal(asarray(a, device='cpu'), a))
     assert_raises(ValueError, lambda: asarray(a, device='gpu'))
+
+def test_array_properties():
+    a = ones((1, 2, 3))
+    b = ones((2, 3))
+    assert_raises(ValueError, lambda: a.T)
+
+    assert isinstance(b.T, Array)
+    assert b.T.shape == (3, 2)
+
+    assert isinstance(a.mT, Array)
+    assert a.mT.shape == (1, 3, 2)
+    assert isinstance(b.mT, Array)
+    assert b.mT.shape == (3, 2)
+
+def test___array__():
+    a = ones((2, 3), dtype=int16)
+    assert np.asarray(a) is a._array
+    b = np.asarray(a, dtype=np.float64)
+    assert np.all(np.equal(b, np.ones((2, 3), dtype=np.float64)))
+    assert b.dtype == np.float64
diff --git a/numpy/array_api/tests/test_elementwise_functions.py b/numpy/array_api/tests/test_elementwise_functions.py
index a9274aec9..b2fb44e76 100644
--- a/numpy/array_api/tests/test_elementwise_functions.py
+++ b/numpy/array_api/tests/test_elementwise_functions.py
@@ -66,7 +66,7 @@ def test_function_types():
         "negative": "numeric",
         "not_equal": "all",
         "positive": "numeric",
-        "pow": "floating-point",
+        "pow": "numeric",
         "remainder": "numeric",
         "round": "numeric",
         "sign": "numeric",
diff --git a/numpy/array_api/tests/test_set_functions.py b/numpy/array_api/tests/test_set_functions.py
new file mode 100644
index 000000000..b8eb65d43
--- /dev/null
+++ b/numpy/array_api/tests/test_set_functions.py
@@ -0,0 +1,19 @@
+import pytest
+from hypothesis import given
+from hypothesis.extra.array_api import make_strategies_namespace
+
+from numpy import array_api as xp
+
+xps = make_strategies_namespace(xp)
+
+
+@pytest.mark.parametrize("func", [xp.unique_all, xp.unique_inverse])
+@given(xps.arrays(dtype=xps.scalar_dtypes(), shape=xps.array_shapes()))
+def test_inverse_indices_shape(func, x):
+    """
+    Inverse indices share shape of input array
+
+    See https://github.com/numpy/numpy/issues/20638
+    """
+    out = func(x)
+    assert out.inverse_indices.shape == x.shape
diff --git a/numpy/array_api/tests/test_sorting_functions.py b/numpy/array_api/tests/test_sorting_functions.py
new file mode 100644
index 000000000..9848bbfeb
--- /dev/null
+++ b/numpy/array_api/tests/test_sorting_functions.py
@@ -0,0 +1,23 @@
+import pytest
+
+from numpy import array_api as xp
+
+
+@pytest.mark.parametrize(
+    "obj, axis, expected",
+    [
+        ([0, 0], -1, [0, 1]),
+        ([0, 1, 0], -1, [1, 0, 2]),
+        ([[0, 1], [1, 1]], 0, [[1, 0], [0, 1]]),
+        ([[0, 1], [1, 1]], 1, [[1, 0], [0, 1]]),
+    ],
+)
+def test_stable_desc_argsort(obj, axis, expected):
+    """
+    Indices respect relative order of a descending stable-sort
+
+    See https://github.com/numpy/numpy/issues/20778
+    """
+    x = xp.asarray(obj)
+    out = xp.argsort(x, axis=axis, stable=True, descending=True)
+    assert xp.all(out == xp.asarray(expected))