CI: Parallelize pytest to split tests across cores

Author: effigies

nipype/info.py

@@ -153,7 +153,7 @@ def get_nipype_gitversion():
 if sys.version_info <= (3, 4):
     REQUIRES.append('configparser')
 
-TESTS_REQUIRES = ['pytest-cov', 'codecov']
+TESTS_REQUIRES = ['pytest-cov', 'codecov', 'pytest-xdist']
 
 EXTRA_REQUIRES = {
     'doc': ['Sphinx>=1.4', 'numpydoc', 'matplotlib', 'pydotplus', 'pydot>=1.2.3'],

nipype/pytest.ini

@@ -1,4 +1,4 @@
 [pytest]
 norecursedirs = .git build dist doc nipype/external tools examples src
-addopts = --doctest-modules
+addopts = --doctest-modules -n auto
 doctest_optionflags = ALLOW_UNICODE NORMALIZE_WHITESPACE

requirements.txt

@@ -11,6 +11,7 @@ click>=6.6.0
 funcsigs
 configparser
 pytest>=3.0
+pytest-xdist
 mock
 pydotplus
 pydot>=1.2.3