Shift and fix test cases of Video Block from edx-platform

.github/workflows/python-tests.yml

@@ -12,7 +12,7 @@ jobs:
     name: Run Python Tests and Coverage
     runs-on: ubuntu-latest
     strategy:
-      fail-fast: true
+      fail-fast: false
       matrix:
         python-version: ["3.11", "3.12"]
         toxenv: [quality, docs, django42, django52]

xblocks_contrib/video/tests/__init__.py

@@ -1,3 +1,9 @@
 """
 Tests for the video xblock.
 """
+
+from unittest.mock import Mock
+from xblocks_contrib.video.video import VideoBlock
+
+
+VideoBlock.add_aside = Mock()

xblocks_contrib/video/tests/test_utils.py

@@ -0,0 +1,64 @@
+from unittest.mock import Mock
+
+from web_fragments.fragment import Fragment
+from xblock.core import XBlockAside
+from xblock.fields import Scope, String
+from xblock.runtime import DictKeyValueStore, KvsFieldData, Runtime
+from xblock.test.tools import TestRuntime
+
+EXPORT_IMPORT_STATIC_DIR = 'static'
+VALIDATION_MESSAGE_WARNING = "warning"
+
+
+class DummyRuntime(TestRuntime, Runtime):
+    """
+    Construct a test DummyRuntime instance.
+    """
+
+    def __init__(self, render_template=None, **kwargs):
+        services = kwargs.setdefault('services', {})
+        services['field-data'] = KvsFieldData(DictKeyValueStore())
+        video_config_mock = Mock(name='video_config')
+        video_config_mock.available_translations = lambda block, transcripts_info, verify_assets=True: []
+        services['video_config'] = video_config_mock
+
+        # Ignore load_error_blocks as it's not supported by modern TestRuntime
+        kwargs.pop('load_error_blocks', None)
+
+        super().__init__(**kwargs)
+        self._resources_fs = Mock(name='DummyRuntime.resources_fs', root_path='.')
+
+    def parse_asides(self, node, def_id, usage_id, id_generator):
+        """pull the asides out of the xml payload and instantiate them"""
+        aside_children = []
+        for child in node.iterchildren():
+            # get xblock-family from node
+            xblock_family = child.attrib.pop('xblock-family', None)
+            if xblock_family:
+                xblock_family = self._family_id_to_superclass(xblock_family)
+                if issubclass(xblock_family, XBlockAside):
+                    aside_children.append(child)
+        # now process them & remove them from the xml payload
+        for child in aside_children:
+            self._aside_from_xml(child, def_id, usage_id)
+            node.remove(child)
+        return aside_children
+
+    @property
+    def resources_fs(self):
+        return self._resources_fs
+
+
+class AsideTestType(XBlockAside):
+    """
+    Test Aside type
+    """
+    FRAG_CONTENT = "<p>Aside rendered</p>"
+
+    content = String(default="default_content", scope=Scope.content)
+    data_field = String(default="default_data", scope=Scope.settings)
+
+    @XBlockAside.aside_for('student_view')
+    def student_view_aside(self, block, context):  # pylint: disable=unused-argument
+        """Add to the student view"""
+        return Fragment(self.FRAG_CONTENT)