RF: move assert_arr_dict_equal to testing

Move testing function from parrect tests to general testing utilities.

Author: matthew-brett

nibabel/testing/__init__.py

@@ -200,3 +200,12 @@ def runif_extra_has(test_str):
     """Decorator checks to see if NIPY_EXTRA_TESTS env var contains test_str"""
     return skipif(test_str not in EXTRA_SET,
                   "Skip {0} tests.".format(test_str))
+
+
+def assert_arr_dict_equal(dict1, dict2):
+    """ Assert that two dicts are equal, where dicts contain arrays
+    """
+    assert_equal(set(dict1), set(dict2))
+    for key, value1 in dict1.items():
+        value2 = dict2[key]
+        assert_array_equal(value1, value2)

nibabel/tests/test_parrec.py

@@ -23,7 +23,8 @@
 from nose.tools import (assert_true, assert_false, assert_raises,
                         assert_equal)
 
-from ..testing import clear_and_catch_warnings, suppress_warnings
+from ..testing import (clear_and_catch_warnings, suppress_warnings,
+                       assert_arr_dict_equal)
 
 from .test_arrayproxy import check_mmap
 from . import test_spatialimages as tsi
@@ -618,13 +619,6 @@ def test_copy_on_init():
     assert_array_equal(HDR_DEFS['image pixel size'], 16)
 
 
-def assert_arr_dict_equal(dict1, dict2):
-    assert_equal(set(dict1), set(dict2))
-    for key, value1 in dict1.items():
-        value2 = dict2[key]
-        assert_array_equal(value1, value2)
-
-
 def assert_structarr_equal(star1, star2):
     # Compare structured arrays (array_equal does not work for np 1.5)
     assert_equal(star1.dtype, star2.dtype)