TST: add test for gifti file loading

Test for issue #392

It's a brittle test, because it depends on the order of file loading.

Author: matthew-brett

nibabel/gifti/tests/test_1.py

@@ -0,0 +1,18 @@
+""" Testing loading of gifti file
+
+The file is ``test_1`` because we are testing a bug where, if we try to load a
+file before instantiating some Gifti objects, loading fails with an
+AttributeError (see: https://github.com/nipy/nibabel/issues/392).
+
+Thus, we have to run this test before the other gifti tests to catch the gifti
+code unprepared.
+"""
+
+from nibabel import load
+
+from .test_parse_gifti_fast import DATA_FILE3
+
+
+def test_load_gifti():
+    # This expression should not raise an error
+    load(DATA_FILE3)