Test for paging in items.py

cms/djangoapps/contentstore/tests/test_libraries.py

@@ -441,6 +441,7 @@ class TestLibraries(LibraryTestCase):
         with self.assertRaises(ValueError):
             self._refresh_children(lc_block, status_code_expected=400)
 
+
 @ddt.ddt
 class TestLibraryAccess(LibraryTestCase):
     """

cms/djangoapps/contentstore/views/tests/test_item.py

@@ -3,7 +3,7 @@ import json
 from datetime import datetime, timedelta
 import ddt
 
-from mock import patch
+from mock import patch, Mock, PropertyMock
 from pytz import UTC
 from webob import Response
 
@@ -18,6 +18,7 @@ from contentstore.views.component import (
     component_handler, get_component_templates
 )
 
+
 from contentstore.views.item import create_xblock_info, ALWAYS, VisibilityState, _xblock_type_and_display_name
 from contentstore.tests.utils import CourseTestCase
 from student.tests.factories import UserFactory
@@ -86,12 +87,18 @@ class ItemTest(CourseTestCase):
 class GetItemTest(ItemTest):
     """Tests for '/xblock' GET url."""
 
-    def _get_container_preview(self, usage_key):
+    def _get_preview(self, usage_key, data=None):
+        """ Makes a request to xblock preview handler """
+        preview_url = reverse_usage_url("xblock_view_handler", usage_key, {'view_name': 'container_preview'})
+        data = data if data else {}
+        resp = self.client.get(preview_url, data, HTTP_ACCEPT='application/json')
+        return resp
+
+    def _get_container_preview(self, usage_key, data=None):
         """
         Returns the HTML and resources required for the xblock at the specified UsageKey
         """
-        preview_url = reverse_usage_url("xblock_view_handler", usage_key, {'view_name': 'container_preview'})
-        resp = self.client.get(preview_url, HTTP_ACCEPT='application/json')
+        resp = self._get_preview(usage_key, data)
         self.assertEqual(resp.status_code, 200)
         resp_content = json.loads(resp.content)
         html = resp_content['html']
@@ -100,6 +107,14 @@ class GetItemTest(ItemTest):
         self.assertIsNotNone(resources)
         return html, resources
 
+    def _get_container_preview_with_error(self, usage_key, expected_code, data=None, content_contains=None):
+        """ Make request and asserts on response code and response contents """
+        resp = self._get_preview(usage_key, data)
+        self.assertEqual(resp.status_code, expected_code)
+        if content_contains:
+            self.assertIn(content_contains, resp.content)
+        return resp
+
     @ddt.data(
         (1, 21, 23, 35, 37),
         (2, 22, 24, 38, 39),
@@ -247,6 +262,40 @@ class GetItemTest(ItemTest):
         self.assertIn('New_NAME_A', html)
         self.assertIn('New_NAME_B', html)
 
+    def test_valid_paging(self):
+        """
+        Tests that valid paging is passed along to underlying block
+        """
+        with patch('contentstore.views.item.get_preview_fragment') as patched_get_preview_fragment:
+            retval = Mock()
+            type(retval).content = PropertyMock(return_value="Some content")
+            type(retval).resources = PropertyMock(return_value=[])
+            patched_get_preview_fragment.return_value = retval
+
+            root_usage_key = self._create_vertical()
+            _, _ = self._get_container_preview(
+                root_usage_key,
+                {'enable_paging': 'true', 'page_number': 0, 'page_size': 2}
+            )
+            call_args = patched_get_preview_fragment.call_args[0]
+            _, _, context = call_args
+            self.assertIn('paging', context)
+            self.assertEqual({'page_number': 0, 'page_size': 2}, context['paging'])
+
+    @ddt.data([1, 'invalid'], ['invalid', 2])
+    @ddt.unpack
+    def test_invalid_paging(self, page_number, page_size):
+        """
+        Tests that valid paging is passed along to underlying block
+        """
+        root_usage_key = self._create_vertical()
+        self._get_container_preview_with_error(
+            root_usage_key,
+            400,
+            data={'enable_paging': 'true', 'page_number': page_number, 'page_size': page_size},
+            content_contains="Couldn't parse paging parameters"
+        )
+
 
 class DeleteItem(ItemTest):
     """Tests for '/xblock' DELETE url."""

common/lib/xmodule/xmodule/tests/test_library_content.py

@@ -14,15 +14,17 @@ from opaque_keys.edx.locator import LibraryLocator
 from xblock.fragment import Fragment
 from xblock.runtime import Runtime as VanillaRuntime
 
-from xmodule.x_module import AUTHOR_VIEW, STUDENT_VIEW
-from xmodule.library_content_module import LibraryVersionReference, LibraryList, ANY_CAPA_TYPE_VALUE, LibraryContentDescriptor 
+from xmodule.x_module import AUTHOR_VIEW
+from xmodule.library_content_module import (
+    LibraryVersionReference, LibraryList, ANY_CAPA_TYPE_VALUE, LibraryContentDescriptor
+)
 from xmodule.modulestore.tests.factories import LibraryFactory, CourseFactory, ItemFactory
 from xmodule.modulestore.tests.utils import MixedSplitTestCase
 from xmodule.tests import get_test_system
 from xmodule.validation import StudioValidationMessage
 
 
-_dummy_render = lambda block, _: Fragment(block.data)
+dummy_render = lambda block, _: Fragment(block.data)
 
 
 class BaseTestLibraryContainer(MixedSplitTestCase):
@@ -74,7 +76,7 @@ class BaseTestLibraryContainer(MixedSplitTestCase):
             }
         )
 
-    def _bind_course_module(self, module, render=None):
+    def _bind_course_module(self, module):
         """
         Bind a module (part of self.course) so we can access student-specific data.
         """
@@ -120,6 +122,7 @@ class BaseTestLibraryContainer(MixedSplitTestCase):
                 modulestore=self.store,
             )
 
+
 @ddt.ddt
 class TestLibraryContainer(BaseTestLibraryContainer):
     """
@@ -270,8 +273,7 @@ class TestLibraryContainer(BaseTestLibraryContainer):
 
 
 @patch('xmodule.modulestore.split_mongo.caching_descriptor_system.CachingDescriptorSystem.render', VanillaRuntime.render)
-@patch('xmodule.html_module.HtmlModule.author_view', _dummy_render, create=True)
-@patch('xmodule.html_module.HtmlModule.student_view', _dummy_render, create=True)
+@patch('xmodule.html_module.HtmlModule.author_view', dummy_render, create=True)
 @patch('xmodule.x_module.DescriptorSystem.applicable_aside_types', lambda self, block: [])
 class TestLibraryContentRender(BaseTestLibraryContainer):
     """
@@ -321,7 +323,7 @@ class TestLibraryList(TestCase):
         lib_list = LibraryList()
         lib1_key, lib1_version = u'library-v1:Org1+Lib1', '5436ffec56c02c13806a4c1b'
         lib2_key, lib2_version = u'library-v1:Org2+Lib2', '112dbaf312c0daa019ce9992'
-        raw = [lib1_key+','+lib1_version, lib2_key+','+lib2_version]
+        raw = [lib1_key + ',' + lib1_version, lib2_key + ',' + lib2_version]
         parsed = lib_list.from_json(raw)
         self.assertEqual(len(parsed), 2)
         self.assertEquals(parsed[0].library_id, LibraryLocator.from_string(lib1_key))
@@ -335,4 +337,4 @@ class TestLibraryList(TestCase):
         """
         lib_list = LibraryList()
         with self.assertRaises(ValueError):
-            lib_list.from_json(["Not-a-library-key,whatever"])
+            lib_list.from_json(["Not-a-library-key,whatever"])
\ No newline at end of file

common/lib/xmodule/xmodule/tests/test_library_root.py

+# -*- coding: utf-8 -*-
+"""
+Basic unit tests for LibraryRoot
+"""
 from mock import patch
 
 from xblock.fragment import Fragment
 from xblock.runtime import Runtime as VanillaRuntime
 from xmodule.x_module import AUTHOR_VIEW
 
-from xmodule.modulestore.tests.factories import LibraryFactory, CourseFactory, ItemFactory
+from xmodule.modulestore.tests.factories import LibraryFactory, ItemFactory
 from xmodule.modulestore.tests.utils import MixedSplitTestCase
 
-_dummy_render = lambda block, _: Fragment(block.data)
+dummy_render = lambda block, _: Fragment(block.data)
 
 
 @patch('xmodule.modulestore.split_mongo.caching_descriptor_system.CachingDescriptorSystem.render', VanillaRuntime.render)
-@patch('xmodule.html_module.HtmlDescriptor.author_view', _dummy_render, create=True)
+@patch('xmodule.html_module.HtmlDescriptor.author_view', dummy_render, create=True)
 @patch('xmodule.x_module.DescriptorSystem.applicable_aside_types', lambda self, block: [])
 class TestLibraryRoot(MixedSplitTestCase):
+    """
+    Basic unit tests for LibraryRoot (library_root_xblock.py)
+    """
     def test_library_author_view(self):
         """
         Test that LibraryRoot.author_view can run and includes content from its
@@ -62,8 +69,9 @@ class TestLibraryRoot(MixedSplitTestCase):
         library = self.store.get_library(library.location.library_key)
 
         def render_and_check_contents(page, page_size):
+            """ Renders block and asserts on returned content """
             context = {'reorderable_items': set(), 'paging': {'page_number': page, 'page_size': page_size}}
-            expected_blocks = blocks[page_size*page:page_size*(page+1)]
+            expected_blocks = blocks[page_size * page:page_size * (page + 1)]
             result = library.render(AUTHOR_VIEW, context)
 
             for expected_block in expected_blocks:
@@ -72,4 +80,4 @@ class TestLibraryRoot(MixedSplitTestCase):
         render_and_check_contents(0, 3)
         render_and_check_contents(1, 3)
         render_and_check_contents(0, 2)
-        render_and_check_contents(1, 2)
+        render_and_check_contents(1, 2)
\ No newline at end of file