public async Task ExecuteFailsAfterRetries()
{
var durable = new DurableAction(new Environment(), new TestTableRepository <DurableActionEntity>());
var expected = new object();
var executeCalls = new List <int>();
var retryCalls = new List <int>();
var cancelCalls = new List <int>();
Func <int, Task <object> > onExecute = attempt => { executeCalls.Add(attempt); throw new Exception("Failed"); };
Func <int, Task> onRetry = attempt => { retryCalls.Add(attempt); return(Task.CompletedTask); };
Func <int, Task> onCancel = attempt => { cancelCalls.Add(attempt); return(Task.CompletedTask); };
var actionId = Guid.NewGuid().ToString("n");
var result = await durable.ExecuteAsync(nameof(ExecuteWithRetries), actionId, onExecute, onRetry, onCancel);
Assert.Null(result);
result = await durable.ExecuteAsync(nameof(ExecuteWithRetries), actionId, onExecute, onRetry, onCancel);
Assert.Null(result);
result = await durable.ExecuteAsync(nameof(ExecuteWithRetries), actionId, onExecute, onRetry, onCancel);
Assert.Null(result);
Assert.Equal(new[] { 1, 2, 3 }, executeCalls.ToArray());
// Retry attemps is always executions - 1 (since the first run isn't a retry.
Assert.Equal(new[] { 1, 2 }, retryCalls.ToArray());
Assert.Single(cancelCalls);
}
public async Task ExecuteWithRetries()
{
var durable = new DurableAction(new Environment(), new TestTableRepository <DurableActionEntity>());
var expected = new object();
var executeCalls = new List <int>();
var retryCalls = new List <int>();
var cancelCalls = new List <int>();
Func <int, Task <object> > onExecute = attempt =>
{
executeCalls.Add(attempt);
if (attempt < 3)
{
throw new Exception("Failed");
}
return(Task.FromResult(expected));
};
Func <int, Task> onRetry = attempt => { retryCalls.Add(attempt); return(Task.CompletedTask); };
Func <int, Task> onCancel = attempt => { cancelCalls.Add(attempt); return(Task.CompletedTask); };
var actionId = Guid.NewGuid().ToString("n");
var result = await durable.ExecuteAsync(nameof(ExecuteWithRetries), actionId, onExecute, onRetry, onCancel);
// Fails once
Assert.Null(result);
result = await durable.ExecuteAsync(nameof(ExecuteWithRetries), actionId, onExecute, onRetry, onCancel);
// Fails twice
Assert.Null(result);
result = await durable.ExecuteAsync(nameof(ExecuteWithRetries), actionId, onExecute, onRetry, onCancel);
// Succeds on third
Assert.Same(expected, result);
Assert.Equal(new[] { 1, 2, 3 }, executeCalls.ToArray());
Assert.Equal(new[] { 1, 2 }, retryCalls.ToArray());
Assert.Empty(cancelCalls);
}
public async Task SimpleExecute()
{
var durable = new DurableAction(new Environment(), new TestTableRepository <DurableActionEntity>());
var expected = new { Value = 5 };
var result = await durable.ExecuteAsync(
nameof(SimpleExecute), Guid.NewGuid().ToString(),
_ => Task.FromResult(expected),
_ => Task.CompletedTask,
_ => Task.CompletedTask);
Assert.Same(expected, result);
}