fix(services,types): make queries and types coherent for Topic

* some nodes was missing in topicQuery
* a node was mispelled in topicsListQuery
* add tests for all topics fetchers

1 files changed, 2 insertions, 2 deletions

diff --git a/src/services/graphql/fetchers/topics/fetch-topics-list.ts b/src/services/graphql/fetchers/topics/fetch-topics-list.ts
index 1bc2e38..2ede721 100644
--- a/src/services/graphql/fetchers/topics/fetch-topics-list.ts
+++ b/src/services/graphql/fetchers/topics/fetch-topics-list.ts
@@ -8,7 +8,7 @@ import type {
 } from '../../../../types';
 import { fetchGraphQL, getGraphQLUrl } from '../../../../utils/helpers';
 
-type TopicsListResponse = {
+export type TopicsListResponse = {
   topics: Nullable<GraphQLConnection<WPTopicPreview>>;
 };
 
@@ -34,7 +34,7 @@ const topicsListQuery = `query TopicsList($after: String, $before: String, $firs
               height
               width
             }
-            slug
+            sourceUrl
             title
           }
         }