fixup! course_blocks unit tests

lms/djangoapps/course_blocks/api.py

@@ -23,26 +23,32 @@ LMS_COURSE_TRANSFORMERS = [
 ]
 
 
-_cache = None
+_COURSE_BLOCKS_CACHE = None
 
 
 def _get_cache():
-    global _cache
-    if not _cache:
-        _cache = get_cache('lms.course_blocks')
-    return _cache
+    global _COURSE_BLOCKS_CACHE
+    if not _COURSE_BLOCKS_CACHE:
+        _COURSE_BLOCKS_CACHE = get_cache('lms.course_blocks')
+    return _COURSE_BLOCKS_CACHE
 
 
 def get_course_blocks(
-        user,
-        root_usage_key,
-        transformers=LMS_COURSE_TRANSFORMERS,
+    user,
+    root_usage_key=None,
+    course_key=None,
+    transformers=None,
 ):
+    store = modulestore()
+
     if transformers is None:
         transformers = LMS_COURSE_TRANSFORMERS
 
+    if root_usage_key is None:
+        root_usage_key = store.make_course_usage_key(course_key)
+
     return get_blocks(
-        _get_cache(), modulestore(), CourseUserInfo(root_usage_key.course_key, user), root_usage_key, transformers,
+        _get_cache(), store, CourseUserInfo(root_usage_key.course_key, user), root_usage_key, transformers,
     )
 
 

lms/djangoapps/course_blocks/transformers/library_content.py

@@ -97,7 +97,6 @@ class ContentLibraryTransformer(BlockStructureTransformer):
                             selected_children.append(usage_key)
 
         # Check and remove all non-selected children from course structure.
-        if not user_info.has_staff_access:
-            block_structure.remove_block_if(
-                check_child_removal
-            )
+        block_structure.remove_block_if(
+            check_child_removal
+        )

lms/djangoapps/course_blocks/transformers/tests/test_helpers.py

@@ -160,17 +160,6 @@ class CourseStructureTestCase(ModuleStoreTestCase):
         xblocks = (blocks[ref] for ref in refs)
         return set([xblock.location for xblock in xblocks])
 
-    def assert_staff_access_to_all_blocks(self, course, blocks, transformer):
-        """
-        Assert staff users have access to all blocks
-        """
-        trans_block_structure = get_course_blocks(
-            self.staff,
-            course.location,
-            transformers={transformer}
-        )
-        self.assertEqual(len(list(trans_block_structure.get_block_keys())), len(blocks))
-
 
 class BlockParentsMapTestCase(ModuleStoreTestCase):
     """

lms/djangoapps/course_blocks/transformers/tests/test_library_content.py

@@ -156,6 +156,3 @@ class ContentLibraryTransformerTestCase(CourseStructureTestCase):
                     'html1'
                 )
             )
-
-    def test_staff_user(self):
-        self.assert_staff_access_to_all_blocks(self.course, self.blocks, self.transformer)

lms/djangoapps/course_blocks/transformers/tests/test_split_test.py

@@ -214,13 +214,13 @@ class SplitTestTransformerTestCase(CourseStructureTestCase):
                 self.course.location,
                 transformers={self.transformer},
             )
-        # with check_mongo_calls(0):  TODO - debug issue with pickling
-        #     block_structure2 = get_course_blocks(
-        #         self.user,
-        #         self.course.location,
-        #         transformers={self.transformer},
-        #     )
-        # self.assertEqual(
-        #     set(block_structure1.get_block_keys()),
-        #     set(block_structure2.get_block_keys()),
-        # )
+        with check_mongo_calls(0):
+            block_structure2 = get_course_blocks(
+                self.user,
+                self.course.location,
+                transformers={self.transformer},
+            )
+        self.assertEqual(
+            set(block_structure1.get_block_keys()),
+            set(block_structure2.get_block_keys()),
+        )

lms/djangoapps/course_blocks/transformers/tests/test_user_partitions.py

@@ -184,6 +184,3 @@ class UserPartitionTransformerTestCase(CourseStructureTestCase):
             set(trans_block_structure.get_block_keys()),
             self.get_block_key_set(self.blocks, *expected_blocks)
         )
-
-    def test_staff_user(self):
-        self.assert_staff_access_to_all_blocks(self.course, self.blocks, self.transformer)

lms/djangoapps/course_blocks/transformers/user_partitions.py

@@ -195,13 +195,12 @@ class UserPartitionTransformer(BlockStructureTransformer):
 
         user_partitions = block_structure.get_transformer_data(self, 'user_partitions')
 
-        if not user_partitions or user_info.has_staff_access:
+        if not user_partitions:
             return
 
         user_groups = get_user_partition_groups(
             user_info.course_key, user_partitions, user_info.user
         )
-        # TODO test this when deserializing across processes
         block_structure.remove_block_if(
             lambda block_key: not block_structure.get_transformer_block_data(
                 block_key, self, 'merged_group_access'