Fix up unit tests for new structure

tests/extractors/test_extractor_base.py

@@ -0,0 +1,26 @@
+import pytest
+
+from auto_archiver.core.metadata import Metadata
+from auto_archiver.core.extractor import Extractor
+from auto_archiver.core.module import get_module
+class TestExtractorBase(object):
+
+    extractor_module: str = None
+    config: dict = None
+
+    @pytest.fixture(autouse=True)
+    def setup_archiver(self, setup_module):
+        assert self.extractor_module is not None, "self.extractor_module must be set on the subclass"
+        assert self.config is not None, "self.config must be a dict set on the subclass"
+        self.extractor: Extractor = setup_module(self.extractor_module, self.config)
+    
+    def assertValidResponseMetadata(self, test_response: Metadata, title: str, timestamp: str, status: str = ""):
+        assert test_response is not False
+
+        if not status:
+            assert test_response.is_success()
+        else:
+            assert status == test_response.status
+
+        assert title == test_response.get_title()
+        assert timestamp, test_response.get("timestamp")