code: def test_mask_not_backmangled(self):
      # See gh-10314.  Test case taken from gh-3140.
      a = np.ma.MaskedArray([1.0, 2.0], mask=[False, False])
      assert_(a.mask.shape == (2,))
      b = np.tile(a, (2, 1))
      # Check that the above no longer changes a.shape to (1, 2)
      assert_(a.mask.shape == (2,))
      assert_(b.shape == (2, 2))
      assert_(b.mask.shape == (2, 2))
  
file_path: catboost/contrib/python/numpy/py3/numpy/ma/tests/test_regression.py
imports: import numpy
  from numpy.testing import assert_, assert_array_equal, assert_allclose, suppress_warnings
label_desc: Use image node_id 11 for calling the TestRegression obj's underlying member method code with example usage: obj.test_mask_not_backmangled() without return types