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-rw-r--r--numpy/lib/tests/test_function_base.py9
1 files changed, 9 insertions, 0 deletions
diff --git a/numpy/lib/tests/test_function_base.py b/numpy/lib/tests/test_function_base.py
index b127f65f6..af9315d83 100644
--- a/numpy/lib/tests/test_function_base.py
+++ b/numpy/lib/tests/test_function_base.py
@@ -913,6 +913,15 @@ class TestDigitize(TestCase):
x, bins = bins, x
assert_raises(TypeError, digitize, x, bins)
+ def test_return_type(self):
+ # Functions returning indices should always return base ndarrays
+ class A(np.ndarray):
+ pass
+ a = np.arange(5).view(A)
+ b = np.arange(1, 3).view(A)
+ assert_(not isinstance(digitize(b, a, False), A))
+ assert_(not isinstance(digitize(b, a, True), A))
+
class TestUnwrap(TestCase):