make the test less sensitive to numerical errors

Author: chrisgorgo

nipype/algorithms/tests/test_moments.py

@@ -1,5 +1,5 @@
 import numpy as np
-from nipype.testing import assert_equal
+from nipype.testing import assert_true
 import tempfile
 from nipype.algorithms.misc import calc_moments
 
@@ -130,9 +130,9 @@ def test_skew():
         f.write(data)
         f.flush()
         skewness = calc_moments(f.name, 3)
-        yield assert_equal, skewness, np.array(
+        yield assert_true, np.allclose(skewness, np.array(
             [-0.23418937314622, 0.2946365564954823, -0.05781002053540932,
              -0.3512508282578762, -
              0.07035664150233077, -
              0.01935867699166935,
-             0.00483863369427428, 0.21879460029850167])
+             0.00483863369427428, 0.21879460029850167]))