Move a ListenBrainz test to the net suite

Allow to uncomment it and slightly improves coverage

tests/frontend/test_user.py

@@ -255,18 +255,6 @@ def test_lastfm_unlink(self):
         rv = self.client.get("/user/me/lastfm/unlink", follow_redirects=True)
         self.assertIn("Unlinked", rv.data)
 
-    def test_listenbrainz_link(self):
-        self._login("alice", "Alic3")
-        rv = self.client.get("/user/me/listenbrainz/link", follow_redirects=True)
-        self.assertIn("Missing ListenBrainz auth token", rv.data)
-        # # Testing this requires an HTTP request!
-        # rv = self.client.get(
-        #     "/user/me/listenbrainz/link",
-        #     query_string={"token": "abcdef"},
-        #     follow_redirects=True,
-        # )
-        # self.assertIn("Error: ", rv.data)
-
     def test_listenbrainz_unlink(self):
         self._login("alice", "Alic3")
         rv = self.client.get("/user/me/listenbrainz/unlink", follow_redirects=True)

tests/net/test_listenbrainz.py

@@ -11,6 +11,8 @@
 
 from supysonic.listenbrainz import ListenBrainz
 
+from ..frontend.frontendtestbase import FrontendTestBase
+
 class ListenBrainzTestCase(unittest.TestCase):
     """Basic test of unauthenticated ListenBrainz API method"""
 
@@ -22,5 +24,18 @@ def test_request(self):
         rv = listenbrainz._ListenBrainz__api_request(False, "/1/search/users/?search_term={0}".format(user), token="123")
         self.assertIsInstance(rv, dict)
 
+class FrontendListenBrainzCase(FrontendTestBase):
+    def test_listenbrainz_link(self):
+        self._login("alice", "Alic3")
+        rv = self.client.get("/user/me/listenbrainz/link", follow_redirects=True)
+        self.assertIn("Missing ListenBrainz auth token", rv.data)
+        rv = self.client.get(
+            "/user/me/listenbrainz/link",
+            query_string={"token": "abcdef"},
+            follow_redirects=True,
+        )
+        self.assertIn("Error: ", rv.data)
+
+
 if __name__ == "__main__":
     unittest.main()