Added a test for positional args (PR-23061)

1 files changed, 11 insertions, 0 deletions

diff --git a/numpy/lib/tests/test_function_base.py b/numpy/lib/tests/test_function_base.py
index 6499b78b7..b56d776cb 100644
--- a/numpy/lib/tests/test_function_base.py
+++ b/numpy/lib/tests/test_function_base.py
@@ -1817,6 +1817,17 @@ class TestVectorize:
         assert_array_equal(r, [1, 2, 3])
         assert f.__name__ == 'f'
 
+    def test_decorator_positional_args(self):
+        A = np.vectorize(abs, ['float64'], "return float absolute value")
+        y1 = A([1, -1, 0, 0.3, 5])
+
+        @vectorize(['float64'], "return float absolute value")
+        def myabs(a):
+            return abs(a)
+
+        y2 = myabs([1, -1, 0, 0.3, 5])
+        assert_array_equal(y1, y2)
+
     def test_positional_regression_9477(self):
         # This supplies the first keyword argument as a positional,
         # to ensure that they are still properly forwarded after the