doctest: Avoid module-level testsetup, which conflicts with xdist

sdcflows/utils/epimanip.py

@@ -23,13 +23,6 @@
 """
 Manipulation of EPI data.
 
-.. testsetup::
-
-    >>> tmpdir = getfixture('tmpdir')
-    >>> tmp = tmpdir.chdir() # changing to a temporary directory
-    >>> nb.Nifti1Image(np.zeros((90, 90, 60)), None, None).to_filename(
-    ...     tmpdir.join('epi.nii.gz').strpath)
-
 """
 
 
@@ -42,6 +35,15 @@ def get_trt(in_meta, in_file=None):
     The first option is that a ``TotalReadoutTime`` field is found
     in the JSON sidecar:
 
+    .. testsetup::
+
+        >>> cwd = os.getcwd()
+        >>> tmpdir = getfixture('tmpdir')
+        >>> tmp = tmpdir.chdir() # changing to a temporary directory
+        >>> nb.Nifti1Image(np.zeros((90, 90, 60)), None, None).to_filename(
+        ...     tmpdir.join('epi.nii.gz').strpath)
+
+
     >>> meta = {'TotalReadoutTime': 0.05251}
     >>> get_trt(meta)
     0.05251
@@ -157,6 +159,10 @@ def get_trt(in_meta, in_file=None):
     Traceback (most recent call last):
     ValueError:
 
+    .. testcleanup::
+
+        >>> os.chdir(cwd)
+
     .. admonition:: Thanks
 
         With thanks to Dr. Rorden for his thorough

sdcflows/workflows/fit/syn.py

@@ -22,17 +22,6 @@
 #
 """
 Estimating the susceptibility distortions without fieldmaps.
-
-.. testsetup::
-
-    >>> tmpdir = getfixture('tmpdir')
-    >>> tmp = tmpdir.chdir() # changing to a temporary directory
-    >>> data = np.zeros((10, 10, 10, 1, 3))
-    >>> data[..., 1] = 1
-    >>> nb.Nifti1Image(data, None, None).to_filename(
-    ...     tmpdir.join('field.nii.gz').strpath)
-
-
 """
 from nipype.pipeline import engine as pe
 from nipype.interfaces import utility as niu