Merge pull request #173 from ye-zhi/master

fix test

code/utils/tests/test_smoothing.py

@@ -0,0 +1,38 @@
+""" Tests for smoothvoxels in smooth module
+Run at the tests directory with:
+    nosetests code/utils/tests/test_smoothing.py
+"""
+
+import os
+import sys
+import numpy as np
+import itertools
+import scipy.ndimage
+from scipy.ndimage.filters import gaussian_filter
+import matplotlib.pyplot as plt
+import nibabel as nib
+from numpy.testing import assert_almost_equal
+from nose.tools import assert_not_equals
+
+
+# Add path to functions to the system path.
+sys.path.append(os.path.join(os.path.dirname(__file__), "../functions/"))
+
+# Load smoothing function.
+from smoothing import smoothing
+
+def test_smooth():
+    # Read in the image data.
+    img = nib.load('data/ds114/sub009/BOLD/task002_run001/ds114_sub009_t2r1.nii')
+    data = img.get_data()
+
+    # Run the smoothing function with sigma 0 at time 12
+    non_smoothed_data = smoothing(data, 0, 12)
+
+	# assert that data at time 12 and non_smoothed_data are equal since sigma = 0
+    assert_almost_equal(data[..., 12], non_smoothed_data)
+
+	# Run the smoothvoxels function with sigma 5 at time 100
+    smoothed_data = smoothing(data, 5, 100)
+	# assert that data at time 16 and smoothed_data are not equal
+    assert_not_equals(data[..., 100].all(), smoothed_data.all())