diff --git a/test/client/v1_test.dart b/test/client/v1_test.dart
index 4e184ff..b6c1076 100644
--- a/test/client/v1_test.dart
+++ b/test/client/v1_test.dart
@@ -12,18 +12,177 @@ class NotLoggedInException implements Exception {
   String toString() => _message;
 }
 
+class UsernameTakenException implements Exception {
+  final String _message;
+
+  UsernameTakenException(this._message);
+
+  @override
+  String toString() => _message;
+}
+
 void main() {
-  group("lemmy API v1", () {
+  group('lemmy API v1', () {
     final lemmy = LemmyAPI('dev.lemmy.ml').v1;
 
-    group("getPosts", () {
-      test("correctly fetches", () async {
+    group('listCategories', () {
+      test('correctly fetches', () async {
+        await lemmy.listCategories();
+      });
+    });
+
+    group('search', () {
+      test('correctly fetches', () async {
+        final res = await lemmy.search(
+            type: SearchType.all, q: 'asd', sort: SortType.active);
+
+        expect(res.type, SortType.active.value);
+      });
+
+      test('forbids illegal numbers', () async {
+        expect(() async {
+          await lemmy.search(
+              type: SearchType.all, q: 'asd', sort: SortType.active, page: 0);
+        }, throwsA(isInstanceOf<AssertionError>()));
+
+        expect(() async {
+          await lemmy.search(
+              type: SearchType.all, q: 'asd', sort: SortType.active, limit: -1);
+        }, throwsA(isInstanceOf<AssertionError>()));
+      });
+
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.search(
+            type: SearchType.all,
+            q: 'asd',
+            sort: SortType.active,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('createComment', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.createComment(
+            content: '123',
+            postId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('editComment', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.editComment(
+            content: '123',
+            editId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('deleteComment', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.deleteComment(
+            deleted: true,
+            editId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('removeComment', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.removeComment(
+            removed: true,
+            editId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('markCommentAsRead', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.markCommentAsRead(
+            read: true,
+            editId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('saveComment', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.saveComment(
+            save: true,
+            commentId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('createCommentLike', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.createCommentLike(
+            score: Vote.up,
+            commentId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('createPost', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.createPost(
+            name: 'asd',
+            nsfw: false,
+            communityId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('getPost', () {
+      test('correctly fetches', () async {
+        await lemmy.getPost(id: 38936);
+      });
+
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.getPost(
+            id: 1,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('getPosts', () {
+      test('correctly fetches', () async {
         final res = await lemmy.getPosts(
             type: PostListingType.all, sort: SortType.active);
         expect(res.length, 10);
       });
 
-      test("forbids illegal numbers", () async {
+      test('forbids illegal numbers', () async {
         expect(() async {
           await lemmy.getPosts(
               type: PostListingType.all, sort: SortType.active, page: 0);
@@ -36,42 +195,301 @@ void main() {
       });
     });
 
-    group("listCategories", () {
-      test("correctly fetches", () async {
-        await lemmy.listCategories();
+    group('createPostLike', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.createPostLike(
+            postId: 1,
+            score: Vote.up,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
       });
     });
 
-    group("search", () {
-      test("correctly fetches", () async {
-        final res = await lemmy.search(
-            type: SearchType.all, q: "asd", sort: SortType.active);
-
-        expect(res.type, SortType.active.value);
-      });
-
-      test("forbids illegal numbers", () async {
+    group('editPost', () {
+      test('handles invalid tokens', () async {
         expect(() async {
-          await lemmy.search(
-              type: SearchType.all, q: "asd", sort: SortType.active, page: 0);
-        }, throwsA(isInstanceOf<AssertionError>()));
-
-        expect(() async {
-          await lemmy.search(
-              type: SearchType.all, q: "asd", sort: SortType.active, limit: -1);
-        }, throwsA(isInstanceOf<AssertionError>()));
-      });
-
-      test("handles invalid tokens", () async {
-        expect(() async {
-          await lemmy.search(
-            type: SearchType.all,
-            q: "asd",
-            sort: SortType.active,
-            auth: "asd",
+          await lemmy.editPost(
+            name: 'asd',
+            nsfw: false,
+            editId: 123,
+            auth: 'asd',
           );
         }, throwsA(isInstanceOf<NotLoggedInException>()));
       });
     });
+
+    group('deletePost', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.deletePost(
+            deleted: true,
+            editId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('removePost', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.removePost(
+            removed: true,
+            editId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('login', () {
+      test('handles invalid credentials', () async {
+        expect(() async {
+          await lemmy.login(
+            usernameOrEmail: '123',
+            password: '123',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('register', () {
+      // TODO(krawieck): the signature seems to be wrong, waiting for correction
+      // test('handles already existing account', () async {
+      //   expect(() async {
+      //     await lemmy.register(
+      //       usernameOrEmail: '123',
+      //       password: '123',
+      //     );
+      //   }, throwsA(isInstanceOf<UsernameTakenException>()));
+      // });
+    });
+
+    group('getCaptcha', () {
+      test('correctly fetches', () async {
+        await lemmy.getCaptcha();
+      });
+    });
+
+    group('getUserDetails', () {
+      test('correctly fetches', () async {
+        await lemmy.getUserDetails(sort: SortType.active, username: 'krawieck');
+      });
+
+      test('forbids illegal numbers', () async {
+        expect(() async {
+          await lemmy.getUserDetails(sort: SortType.active, page: 0);
+        }, throwsA(isInstanceOf<AssertionError>()));
+
+        expect(() async {
+          await lemmy.getUserDetails(sort: SortType.active, limit: -1);
+        }, throwsA(isInstanceOf<AssertionError>()));
+      });
+
+      test('forbids both username and userId being passed at once', () async {
+        expect(() async {
+          await lemmy.getUserDetails(
+            sort: SortType.active,
+            username: 'asd',
+            userId: 123,
+          );
+        }, throwsA(isInstanceOf<AssertionError>()));
+      });
+
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.getUserDetails(
+            sort: SortType.active,
+            auth: '123',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('saveUserSettings', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.saveUserSettings(
+            showNsfw: true,
+            theme: 'asd',
+            defaultSortType: SortType.active,
+            defaultListingType: PostListingType.all,
+            auth: '123',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('getReplies', () {
+      test('forbids illegal numbers', () async {
+        expect(() async {
+          await lemmy.getReplies(
+            sort: SortType.active,
+            unreadOnly: false,
+            auth: 'asd',
+            page: 0,
+          );
+        }, throwsA(isInstanceOf<AssertionError>()));
+
+        expect(() async {
+          await lemmy.getReplies(
+            sort: SortType.active,
+            unreadOnly: false,
+            auth: 'asd',
+            limit: -1,
+          );
+        }, throwsA(isInstanceOf<AssertionError>()));
+      });
+
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.getReplies(
+            sort: SortType.active,
+            unreadOnly: false,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('getUserMentions', () {
+      // TODO(krawieck): the signature seems to be wrong, waiting for correction
+      // test('forbids illegal numbers', () async {
+      //   expect(() async {
+      // await lemmy.getUserMentions(
+      //   sort: SortType.active,
+      //   unreadOnly: false,
+      //   auth: 'asd',
+      //   page: 0,
+      // );
+      //   }, throwsA(isInstanceOf<AssertionError>()));
+
+      //   expect(() async {
+      //     await lemmy.getUserMentions(
+      //       sort: SortType.active,
+      //       unreadOnly: false,
+      //       auth: 'asd',
+      //       limit: -1,
+      //     );
+      //   }, throwsA(isInstanceOf<AssertionError>()));
+      // });
+
+      // test('handles invalid tokens', () async {
+      //   expect(() async {
+      //     await lemmy.getUserMentions(
+      //       sort: SortType.active,
+      //       unreadOnly: false,
+      //       auth: 'asd',
+      //     );
+      //   }, throwsA(isInstanceOf<NotLoggedInException>()));
+      // });
+    });
+
+    group('markUserMentionAsRead', () {
+      test('handles invalid credentials', () async {
+        expect(() async {
+          await lemmy.markUserMentionAsRead(
+            userMentionId: 123,
+            read: true,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('getPrivateMessages', () {
+      test('forbids illegal numbers', () async {
+        expect(() async {
+          await lemmy.getPrivateMessages(
+            unreadOnly: false,
+            auth: 'asd',
+            page: 0,
+          );
+        }, throwsA(isInstanceOf<AssertionError>()));
+
+        expect(() async {
+          await lemmy.getPrivateMessages(
+            unreadOnly: false,
+            auth: 'asd',
+            limit: -1,
+          );
+        }, throwsA(isInstanceOf<AssertionError>()));
+      });
+
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.getPrivateMessages(
+            unreadOnly: false,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('createPrivateMessage', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.createPrivateMessage(
+            content: 'asd',
+            recipientId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('editPrivateMessage', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.editPrivateMessage(
+            content: 'asd',
+            editId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('deletePrivateMessage', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.deletePrivateMessage(
+            deleted: true,
+            editId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('markPrivateMessageAsRead', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.markPrivateMessageAsRead(
+            read: true,
+            editId: 123,
+            auth: 'asd',
+          );
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('markAllAsRead', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.markAllAsRead(auth: 'asd');
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
+
+    group('deleteAccount', () {
+      test('handles invalid tokens', () async {
+        expect(() async {
+          await lemmy.deleteAccount(password: 'asd', auth: 'asd');
+        }, throwsA(isInstanceOf<NotLoggedInException>()));
+      });
+    });
   });
 }