Allow parallel execution of test_backend_ps:test_determinism_all_tex and test_determinism_all

Alexis Bienvenüe · Alexis Bienvenüe · commit a3185e62cb92 · 2016-07-08T12:16:00.000+02:00
diff --git a/lib/matplotlib/testing/determinism.py b/lib/matplotlib/testing/determinism.py
@@ -60,7 +60,7 @@ def _test_determinism_save(filename, objects='mhi', format="pdf"):
         os.environ['SOURCE_DATE_EPOCH'] = sde
 
 
-def _test_determinism(objects='mhi', format="pdf"):
+def _test_determinism(objects='mhi', format="pdf", uid=""):
     """
     Output three times the same graphs and checks that the outputs are exactly
     the same.
@@ -73,11 +73,14 @@ def _test_determinism(objects='mhi', format="pdf"):
         default value is "mhi", so that the test includes all these objects.
     format : str
         format string. The default value is "pdf".
+    uid : str
+        some string to add to the filename used to store the output. Use it to
+        allow parallel execution of two tests with the same objects parameter.
     """
     import sys
     from subprocess import check_call
     from nose.tools import assert_equal
-    filename = 'determinism_O%s.%s' % (objects, format)
+    filename = 'determinism_O%s%s.%s' % (objects, uid, format)
     plots = []
     for i in range(3):
         check_call([sys.executable, '-R', '-c',
diff --git a/lib/matplotlib/tests/test_backend_ps.py b/lib/matplotlib/tests/test_backend_ps.py
@@ -198,7 +198,7 @@ def test_determinism_all():
 def test_determinism_all_tex():
     """Test for reproducible PS/tex output"""
     matplotlib.rcParams['text.usetex'] = True
-    _test_determinism(format="ps")
+    _test_determinism(format="ps",uid="_tex")
 
 
 if __name__ == '__main__':
