testing bugfix: always copy baseline image

svn path=/trunk/matplotlib/; revision=8130

Author: astraw

lib/matplotlib/testing/decorators.py

@@ -88,8 +88,7 @@ def compare_images_generator():
                 orig_expected_fnames = [os.path.join(baseline_dir,fname) + '.' + extension for fname in baseline_images]
                 expected_fnames = [os.path.join(result_dir,'expected-'+fname) + '.' + extension for fname in baseline_images]
                 for src,dst in zip( orig_expected_fnames, expected_fnames ):
-                    if os.path.exists(src) and not os.path.exists(dst):
-                        shutil.copyfile(src,dst)
+                    shutil.copyfile(src,dst)
                 actual_fnames = [os.path.join(result_dir, fname) + '.' + extension for fname in baseline_images]
                 have_baseline_images = [os.path.exists(expected) for expected in expected_fnames]
                 have_baseline_image = np.all(have_baseline_images)