Merge pull request #366 from ev-br/nextafter

ENH: test nextafter

Author: ev-br

array_api_tests/test_operators_and_elementwise_functions.py

@@ -1595,6 +1595,26 @@ def test_not_equal(ctx, data):
     )
 
 
+@pytest.mark.min_version("2024.12")
+@given(
+    shapes=hh.two_mutually_broadcastable_shapes,
+    dtype=hh.real_floating_dtypes,
+    data=st.data() 
+)
+def test_nextafter(shapes, dtype, data):
+    x1 = data.draw(hh.arrays(dtype=dtype, shape=shapes[0]), label="x1")
+    x2 = data.draw(hh.arrays(dtype=dtype, shape=shapes[0]), label="x2")
+
+    out = xp.nextafter(x1, x2)
+    _assert_correctness_binary(
+        "nextafter",
+        math.nextafter,
+        in_dtypes=[x1.dtype, x2.dtype],
+        in_shapes=[x1.shape, x2.shape],
+        in_arrs=[x1, x2],
+        out=out
+    )
+
 @pytest.mark.parametrize("ctx", make_unary_params("positive", dh.numeric_dtypes))
 @given(data=st.data())
 def test_positive(ctx, data):
@@ -1813,6 +1833,7 @@ def _filter_zero(x):
         ("divide", operator.truediv, {"filter_": lambda s: s != 0}, None),
         ("hypot", math.hypot, {}, None),
         ("logaddexp", logaddexp_refimpl, {}, None),
+        ("nextafter", math.nextafter, {}, None),
         ("maximum", max, {'strict_check': True}, None),
         ("minimum", min, {'strict_check': True}, None),
         ("multiply", operator.mul, {}, None),