public async Task ShouldThrowExceptionWhenRichMenuIsInvalid()
            {
                var richMenu = new RichMenu();

                ILineBot bot = TestConfiguration.CreateBot();
                await ExceptionAssert.ThrowsAsync <InvalidOperationException>("The areas cannot be null.", async() => { await bot.CreateRichMenu(richMenu); });
            }
 public async Task ShouldThrowExceptionWhenRichMenuIsNull()
 {
     ILineBot bot = TestConfiguration.CreateBot();
     await ExceptionAssert.ThrowsArgumentNullExceptionAsync("richMenu", async() => { await bot.CreateRichMenu(null); });
 }