public async Task CreateGalleryItemCommentReplyAsync_WithCommentNull_ThrowsArgumentNullException()
        {
            var client   = new ImgurClient("123", "1234");
            var endpoint = new GalleryEndpoint(client);

            var exception =
                await
                Record.ExceptionAsync(
                    async() =>
                    await endpoint.CreateGalleryItemCommentReplyAsync(null, "Xyz", "1234").ConfigureAwait(false))
                .ConfigureAwait(false);

            Assert.NotNull(exception);
            Assert.IsType <ArgumentNullException>(exception);
        }
        public async Task CreateGalleryItemCommentReplyAsync_Equal()
        {
            var mockUrl      = "https://api.imgur.com/3/gallery/dO484/comment/1234890";
            var mockResponse = new HttpResponseMessage(HttpStatusCode.OK)
            {
                Content = new StringContent(MockGalleryEndpointResponses.CreateGalleryItemCommentReply)
            };

            var client   = new ImgurClient("123", "1234", MockOAuth2Token);
            var endpoint = new GalleryEndpoint(client, new HttpClient(new MockHttpMessageHandler(mockUrl, mockResponse)));
            var comment  =
                await
                endpoint.CreateGalleryItemCommentReplyAsync("Hello World!", "dO484", "1234890")
                .ConfigureAwait(false);

            Assert.NotNull(comment);
            Assert.Equal(548358985, comment);
        }