public async Task PingAsync()
{
var messageMock = new Mock <IDiscordMessage>();
messageMock.SetupGet(x => x.Timestamp)
.Returns(DateTimeOffset.Now);
Mock.SetContext(
FetchDataStage.ChannelArgumentKey,
new DiscordGuildTextChannel(new DiscordChannelPacket(), null));
Mock.SetContext(CorePipelineStage.MessageContextKey, messageMock.Object);
var general = new GeneralModule();
await general.PingAsync(Mock);
Assert.True(Worker.TryGetMessage(out var response));
Assert.NotNull(response.Arguments.Properties.Embed);
Assert.Equal("Ping", response.Arguments.Properties.Embed.Title);
Assert.Equal("ping_placeholder", response.Arguments.Properties.Embed.Description);
Assert.True(Worker.TryGetMessage(out response));
Assert.NotNull(response.Arguments.Properties.Embed);
Assert.Equal($"Pong - {Environment.MachineName}",
response.Arguments.Properties.Embed.Title);
}