public async Task CanSaveAs()
        {
            using (var manager = new PluginManager())
            {
                await manager.LoadCore(new TestCoreMod());

                var testFile = new TextFile();
                testFile.CreateFile("Test");

                var testFileViewModel = new FileViewModel(testFile, manager);
                Assert.AreEqual(true, testFileViewModel.CanSaveAs(manager));
            }
        }