test: add mock resposes

src/tests/ResponseMocks/WikipediaMockResponse.json

@@ -0,0 +1,20 @@
+{
+    "query": {
+        "searchinfo": {
+            "totalhits": 1199001,
+            "suggestion": "book",
+            "suggestionsnippet": "book"
+        },
+        "search": [
+            {
+                "ns": 0,
+                "title": "Book",
+                "pageid": 3778,
+                "size": 68829,
+                "wordcount": 8821,
+                "snippet": "called <span class=\"searchmatch\">books</span> or chapters or parts, are parts. The intellectual content in a physical book need not be a composition, nor even be called a book. <span class=\"searchmatch\">Books</span> can",
+                "timestamp": "2022-08-19T19:13:56Z"
+            }
+        ]
+    }
+}