TEST: Fix failing test_image_api tests for new BV test files.

Author: thomastweets

nibabel/brainvoyager/bv_vtc.py

@@ -92,7 +92,7 @@ def set_data_shape(self, shape=None, zyx=None, t=None):
         if (shape is None) and (zyx is None) and (t is None):
             raise HeaderDataError('Shape, zyx, or t needs to be specified!')
         if ((t is not None) and (t < 0)) or \
-           ((shape is not None) and (shape[3] < 0)):
+           ((shape is not None) and (len(shape) == 4) and (shape[3] < 0)):
             raise HeaderDataError('VTC files need at least one volume!')
         if shape is not None:
             # Use zyx and t parameters instead of shape.

nibabel/brainvoyager/tests/test_bv_vmp.py

@@ -52,13 +52,13 @@
         is_proxy=True),
     dict(
         fname=pjoin(data_path, 'test3.vmp'),
-        shape=(1, 10, 10, 10),
+        shape=(1, 5, 4, 3),
         dtype=np.float32,
-        affine=np.array([[-3., 0, 0, -21.],
-                         [0, 0, -3., -21.],
-                         [0, -3., 0, -21.],
+        affine=np.array([[-2., 0, 0, 122.],
+                         [0, 0, -2., 46.],
+                         [0, -2., 0, 140.],
                          [0, 0, 0, 1.]]),
-        zooms=(3., 3., 3.),
+        zooms=(2., 2., 2.),
         fileformat=BvVmpImage,
         # These values are from NeuroElf
         data_summary=dict(