public async void DeletePostAsync_Test()
        {
            // Arrange
            SeedTestPost();

            // Act
            await _svc.DeletePostAsync(APP_KEY, "1", USERNAME, PASSWORD);

            // Assert
            await Assert.ThrowsAsync <MetaWeblogException>(() => _svc.GetPostAsync("1", USERNAME, PASSWORD, ROOT_URL));
        }
        public async void DeletePostAsync_Test()
        {
            // Arrange
            SeedTestPost();

            // Act
            await _svc.DeletePostAsync(appKey, "1", userName, password);

            // Assert
            await Assert.ThrowsAsync <MetaWeblogException>(() => _svc.GetPostAsync("1", userName, password, rootUrl));
        }