TEST: Added parrec2nii test with most interfaces mocked.

Author: JasperVanDenBosch

nibabel/tests/test_parrec2nii.py

@@ -0,0 +1,45 @@
+""" Tests for the parrec2nii exe code
+"""
+import imp, numpy
+from mock import Mock, MagicMock
+from numpy import array as npa
+
+AN_OLD_AFFINE = numpy.array(
+    [[-3.64994708, 0., 1.83564171, 123.66276611],
+     [0., -3.75, 0., 115.617],
+     [0.86045705, 0., 7.78655376, -27.91161211],
+     [0., 0., 0., 1.]])
+
+def test_parrec2nii():
+    parrec2nii = imp.load_source('parrec2nii', 'bin/parrec2nii')
+    parrec2nii.verbose.switch = False
+
+    parrec2nii.io_orientation = Mock()
+    parrec2nii.io_orientation.return_value = [[0, 1],[1, 1],[2, 1]] # LAS+ 
+
+    parrec2nii.nifti1 = Mock()
+    nimg = Mock()
+    nhdr = MagicMock()
+    nimg.header = nhdr
+    parrec2nii.nifti1.Nifti1Image.return_value = nimg
+
+    parrec2nii.pr = Mock()
+    pr_img = Mock()
+    pr_hdr = Mock()
+    pr_hdr.get_data_scaling.return_value = (npa([]), npa([]))
+    pr_hdr.get_bvals_bvecs.return_value = (None, None)
+    pr_hdr.get_affine.return_value = AN_OLD_AFFINE
+    pr_img.header = pr_hdr
+    parrec2nii.pr.load.return_value = pr_img
+
+    opts = Mock()
+    opts.outdir = None
+    opts.scaling = 'off'
+    opts.minmax = [1, 1]
+    opts.store_header = False
+    opts.bvs = False
+    opts.vol_info = False
+    opts.dwell_time = False
+
+    infile = 'nonexistent.PAR'
+    parrec2nii.proc_file(infile, opts)