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-rw-r--r--numpy/ma/testutils.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/numpy/ma/testutils.py b/numpy/ma/testutils.py
index 5234e0db4..1918e97a0 100644
--- a/numpy/ma/testutils.py
+++ b/numpy/ma/testutils.py
@@ -228,10 +228,10 @@ def assert_array_less(x, y, err_msg='', verbose=True):
header='Arrays are not less-ordered')
-def assert_mask_equal(m1, m2):
+def assert_mask_equal(m1, m2, err_msg=''):
"""Asserts the equality of two masks."""
if m1 is nomask:
assert(m2 is nomask)
if m2 is nomask:
assert(m1 is nomask)
- assert_array_equal(m1, m2)
+ assert_array_equal(m1, m2, err_msg=err_msg)