public async Task StoreMessagesProviderTest()
{
// Arrange
int batchSize = 100;
List <IMessage> messages = GetNewMessages(batchSize * 3, 0).ToList();
var iterator = new Mock <IMessageIterator>();
iterator.SetupSequence(i => i.GetNext(It.IsAny <int>()))
.ReturnsAsync(messages.Take(15))
.ReturnsAsync(messages.Skip(15).Take(15))
.ReturnsAsync(messages.Skip(30).Take(70))
.ReturnsAsync(messages.Skip(100).Take(52))
.ReturnsAsync(messages.Skip(152).Take(48))
.ReturnsAsync(messages.Skip(200));
// Act
var messagesProvider = new StoringAsyncEndpointExecutor.StoreMessagesProvider(iterator.Object, 100);
await Task.Delay(TimeSpan.FromSeconds(1));
IMessage[] messagesBatch = await messagesProvider.GetMessages();
// Assert
Assert.NotNull(messagesBatch);
Assert.Equal(batchSize, messagesBatch.Length);
Assert.Equal(messages.Take(100), messagesBatch);
// Act
await Task.Delay(TimeSpan.FromSeconds(1));
messagesBatch = await messagesProvider.GetMessages();
// Assert
Assert.NotNull(messagesBatch);
Assert.Equal(batchSize, messagesBatch.Length);
Assert.Equal(messages.Skip(100).Take(100), messagesBatch);
// Assert
await Task.Delay(TimeSpan.FromSeconds(1));
iterator.VerifyAll();
// Act
messagesBatch = await messagesProvider.GetMessages();
// Assert
Assert.NotNull(messagesBatch);
Assert.Equal(batchSize, messagesBatch.Length);
Assert.Equal(messages.Skip(200).Take(100), messagesBatch);
}
public async Task StoreMessagesProviderIntermittantMessagesTest()
{
// Arrange
int batchSize = 10;
List <IMessage> messages = GetNewMessages(batchSize, 0).ToList();
var iterator = new Mock <IMessageIterator>();
iterator.SetupSequence(i => i.GetNext(It.IsAny <int>()))
.ReturnsAsync(messages.Take(6))
.ReturnsAsync(Enumerable.Empty <IMessage>())
.ReturnsAsync(messages.Skip(6).Take(1))
.ReturnsAsync(messages.Skip(7).Take(1))
.ReturnsAsync(Enumerable.Empty <IMessage>())
.ReturnsAsync(messages.Skip(8).Take(1))
.ReturnsAsync(Enumerable.Empty <IMessage>());
// Act
var messagesProvider = new StoringAsyncEndpointExecutor.StoreMessagesProvider(iterator.Object, batchSize);
await Task.Delay(TimeSpan.FromSeconds(1));
IMessage[] messagesBatch = await messagesProvider.GetMessages();
// Assert
Assert.NotNull(messagesBatch);
Assert.Equal(6, messagesBatch.Length);
Assert.Equal(messages.Take(6), messagesBatch);
// Act
messagesBatch = await messagesProvider.GetMessages();
// Assert
Assert.NotNull(messagesBatch);
Assert.Equal(2, messagesBatch.Length);
Assert.Equal(messages.Skip(6).Take(2), messagesBatch);
// Act
messagesBatch = await messagesProvider.GetMessages();
// Assert
Assert.NotNull(messagesBatch);
Assert.Single(messagesBatch);
Assert.Equal(messages.Skip(8).Take(1), messagesBatch);
// Assert
iterator.VerifyAll();
}