Add some basic unittests for metadata sanity

Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: gtema <artem.goncharov@gmail.com>
Co-committed-by: gtema <artem.goncharov@gmail.com>

otc_metadata/tests/test_otc_metadata.py

@@ -21,8 +21,45 @@ Tests for `otc-metadata` module.
 
 from unittest import TestCase
 
+from otc_metadata import services
+
 
 class TestOtcMetadata(TestCase):
+    def setUp(self):
+        self.data = services.Services()
 
-    def test_something(self):
-        pass
+    def test_data_is_sorted(self):
+        curr = self.data
+        new = services.Services()
+        new._sort_data()
+        self.assertEqual(
+            curr._service_data, new._service_data, "Data is sorted properly"
+        )
+
+    def test_service_categories(self):
+        category = dict()
+        for cat in self.data._service_data["service_categories"]:
+            category[cat["name"]] = cat["title"]
+        for srv in self.data.all_services:
+            self.assertTrue(
+                srv["service_category"] in category,
+                f"Category {srv['service_category']} is present",
+            )
+
+    def test_doc_contains_required_data(self):
+        srv_types = dict()
+        for srv in self.data.all_services:
+            srv_types[srv["service_type"]] = srv
+        for doc in self.data.all_docs:
+            for attr in [
+                "rst_location",
+                "service_type",
+                "title",
+                "type",
+            ]:
+                self.assertIn(attr, doc, f"Document {doc} contains {attr}")
+            self.assertIn(
+                doc["service_type"],
+                srv_types,
+                f"Document {doc} contains valid service_type",
+            )