public async Task CloudQueueClearMessageAsync()
{
CloudQueueClient client = GenerateCloudQueueClient();
string name = GenerateNewQueueName();
CloudQueue queue = client.GetQueueReference(name);
await queue.CreateAsync();
string msgContent = Guid.NewGuid().ToString("N");
CloudQueueMessage message = new CloudQueueMessage(msgContent);
await queue.AddMessageAsync(message);
VerifyAddMessageResult(message);
CloudQueueMessage receivedMessage1 = await queue.PeekMessageAsync();
Assert.IsTrue(receivedMessage1.AsString == message.AsString);
await queue.ClearAsync();
Assert.IsNull(await queue.PeekMessageAsync());
await queue.DeleteAsync();
}
public async Task CloudQueueAddMessageFullParameterAsync()
{
CloudQueueMessage futureMessage = new CloudQueueMessage("This message is for the future.");
CloudQueueMessage presentMessage = new CloudQueueMessage("This message is for the present.");
CloudQueueClient client = GenerateCloudQueueClient();
CloudQueue queue = client.GetQueueReference(GenerateNewQueueName());
try
{
await queue.CreateIfNotExistsAsync();
await queue.AddMessageAsync(futureMessage, null, TimeSpan.FromDays(2), null, null);
VerifyAddMessageResult(futureMessage);
// We should not be able to see the future message yet.
CloudQueueMessage retrievedMessage = await queue.GetMessageAsync();
Assert.IsNull(retrievedMessage);
await queue.AddMessageAsync(presentMessage, null, TimeSpan.Zero, null, null);
VerifyAddMessageResult(presentMessage);
await queue.AddMessageAsync(presentMessage, TimeSpan.FromDays(1), null, null, null);
VerifyAddMessageResult(presentMessage);
// We should be able to see the present message.
retrievedMessage = await queue.GetMessageAsync();
Assert.IsNotNull(retrievedMessage);
Assert.AreEqual <string>(presentMessage.AsString, retrievedMessage.AsString);
await queue.AddMessageAsync(futureMessage, TimeSpan.FromDays(2), TimeSpan.FromDays(1), null, null);
VerifyAddMessageResult(futureMessage);
await queue.ClearAsync();
// -1 seconds should set an infinite ttl
await queue.AddMessageAsync(presentMessage, TimeSpan.FromSeconds(-1), null, null, null);
retrievedMessage = await queue.PeekMessageAsync();
Assert.AreEqual(DateTime.MaxValue.Year, retrievedMessage.ExpirationTime.Value.Year);
// There should be no upper bound on ttl
await queue.AddMessageAsync(presentMessage, TimeSpan.MaxValue, null, null, null);
// Check other edge cases
await queue.AddMessageAsync(presentMessage, TimeSpan.FromSeconds(1), TimeSpan.FromSeconds(0), null, null);
await queue.AddMessageAsync(presentMessage, TimeSpan.FromSeconds(7 * 24 * 60 * 60), TimeSpan.FromSeconds(7 * 24 * 60 * 60 - 1), null, null);
await queue.AddMessageAsync(presentMessage, TimeSpan.FromSeconds(-1), TimeSpan.FromSeconds(1), null, null);
await TestHelper.ExpectedExceptionAsync <ArgumentException>(
async() => await queue.AddMessageAsync(futureMessage, TimeSpan.FromDays(1), TimeSpan.FromDays(2), null, null),
"Using a visibility timeout longer than the time to live should fail");
await TestHelper.ExpectedExceptionAsync <ArgumentException>(
async() => await queue.AddMessageAsync(futureMessage, null, TimeSpan.FromDays(8), null, null),
"Using a visibility longer than the maximum visibility timeout should fail");
await TestHelper.ExpectedExceptionAsync <ArgumentException>(
async() => await queue.AddMessageAsync(futureMessage, null, TimeSpan.FromMinutes(-1), null, null),
"Using a negative visibility should fail");
await TestHelper.ExpectedExceptionAsync <ArgumentException>(
async() => await queue.AddMessageAsync(futureMessage, TimeSpan.FromMinutes(-1), null, null, null),
"Using a negative TTL other than -1 seconds (infinite) should fail");
await TestHelper.ExpectedExceptionAsync <ArgumentException>(
() => queue.AddMessageAsync(futureMessage, TimeSpan.FromSeconds(1), TimeSpan.FromSeconds(1), null, null),
"Visibility timeout must be strictly less than the TTL");
await TestHelper.ExpectedExceptionAsync <ArgumentException>(
() => queue.AddMessageAsync(presentMessage, null, CloudQueueMessage.MaxVisibilityTimeout, null, null),
"Null TTL will default to 7 days, which is the max visibility timeout. They cannot be equal.");
}
finally
{
await queue.DeleteAsync();
}
}