Add authentication error test

Author: cameronfyfe

tests/client_tests.rs

@@ -39,6 +39,20 @@ mod mock {
         });
     }
 
+    #[test]
+    fn search_with_authentication_error() {
+        b!(async {
+            let response = podcast_api::Client::new(Some("wrong_key"))
+                .search(&json!({
+                    "q": "dummy",
+                    "sort_by_date": 1
+                }))
+                .await
+                .unwrap();
+            assert_eq!(response.response.status(), http::StatusCode::UNAUTHORIZED);
+        });
+    }
+
     #[test]
     fn typeahead() {
         b!(async {