public async Task FetchUnprocessedAsync_should_return_unprocessed_messages_only()
{
var batchSize = 6;
var publisher = Substitute.For <IMessagePublisher>();
var messages = Enumerable.Repeat(1, batchSize)
.Select(CreateFakeMessage)
.ToArray();
int index = 0;
foreach (var message in messages)
{
if (0 == (index++ % 2))
{
await message.Process(publisher, CancellationToken.None);
}
}
await using var dbContext = _fixture.BuildDbContext();
dbContext.Messages.AddRange(messages);
await dbContext.SaveChangesAsync();
var sut = new MessagesRepository(dbContext);
var results = await sut.FetchUnprocessedAsync(batchSize, CancellationToken.None);
results.Should().NotBeNullOrEmpty()
.And.HaveCount(3);
}