public static void test_simple_reject()
{
bool callbackCalled = false;
eina.Error received_error = eina.Error.NO_ERROR;
efl.ILoop loop = efl.App.GetLoopMain();
eina.Promise promise = new eina.Promise();
eina.Future future = new eina.Future(promise);
future = future.Then((eina.Value value) => {
callbackCalled = true;
value.Get(out received_error);
return(value);
});
promise.Reject(eina.Error.EPERM);
loop.Iterate();
Test.Assert(callbackCalled, "Future callback should have been called.");
Test.AssertEquals(received_error, eina.Error.EPERM);
Test.AssertRaises <ObjectDisposedException>(() => { promise.Resolve(null); });
Test.AssertRaises <ObjectDisposedException>(future.Cancel);
}
public static void test_simple_resolve()
{
bool callbackCalled = false;
eina.Value received_value = null;
efl.ILoop loop = efl.App.GetLoopMain();
eina.Promise promise = new eina.Promise();
eina.Future future = new eina.Future(promise);
future = future.Then((eina.Value value) => {
callbackCalled = true;
received_value = value;
return(value);
});
eina.Value reference_value = new eina.Value(eina.ValueType.Int32);
reference_value.Set(1984);
promise.Resolve(reference_value);
loop.Iterate();
Test.Assert(callbackCalled, "Future callback should have been called.");
Test.AssertEquals(received_value, reference_value);
}
public static void test_constructor_with_callback()
{
bool callbackCalled = false;
eina.Value received_value = null;
efl.ILoop loop = efl.App.GetLoopMain();
eina.Promise promise = new eina.Promise();
#pragma warning disable 0219
eina.Future future = new eina.Future(promise, (eina.Value value) => {
callbackCalled = true;
received_value = value;
return(value);
});
#pragma warning restore 0219
eina.Value reference_value = new eina.Value(eina.ValueType.Int32);
reference_value.Set(1984);
promise.Resolve(reference_value);
loop.Iterate();
Test.Assert(callbackCalled, "Future callback should have been called.");
Test.AssertEquals(received_value, reference_value);
}
public static void test_simple_task_run()
{
efl.ILoop loop = efl.App.GetLoopMain();
eina.Future future = loop.Idle();
bool callbackCalled = false;
int ret_code = 1992;
future.Then((eina.Value value) => {
callbackCalled = true;
eina.Value v = new eina.Value(eina.ValueType.Int32);
v.Set(ret_code);
loop.Quit(v);
return(value);
});
eina.Value ret_value = loop.Begin();
Test.Assert(callbackCalled, "Future loop callback must have been called.");
Test.AssertEquals(ret_value.GetValueType(), eina.ValueType.Int32);
int ret_from_value;
Test.Assert(ret_value.Get(out ret_from_value));
Test.AssertEquals(ret_from_value, ret_code);
}
public static void test_object_promise_cancel()
{
efl.ILoop loop = efl.App.GetLoopMain();
test.Testing obj = new test.Testing();
eina.Future future = obj.GetFuture();
bool callbackCalled = false;
eina.Error receivedError = -1;
eina.Error sentError = 120;
future.Then((eina.Value value) => {
callbackCalled = true;
Test.AssertEquals(value.GetValueType(), eina.ValueType.Error);
value.Get(out receivedError);
return(value);
});
obj.RejectPromise(sentError);
loop.Iterate();
Test.Assert(callbackCalled, "Future callback must have been called.");
Test.AssertEquals(receivedError, sentError);
}
public static void test_object_promise()
{
efl.ILoop loop = efl.App.GetLoopMain();
test.Testing obj = new test.Testing();
eina.Future future = obj.GetFuture();
bool callbackCalled = false;
int receivedValue = -1;
int sentValue = 1984;
future.Then((eina.Value value) => {
callbackCalled = true;
Test.AssertEquals(value.GetValueType(), eina.ValueType.Int32);
value.Get(out receivedValue);
return(value);
});
obj.FulfillPromise(sentValue);
loop.Iterate();
Test.Assert(callbackCalled, "Future callback must have been called.");
Test.AssertEquals(receivedValue, sentValue);
}
public static void test_simple_cancel()
{
bool cleanCalled = false;
eina.Promise promise = new eina.Promise(() => { cleanCalled = true; });
eina.Future future = new eina.Future(promise);
future.Cancel();
Test.Assert(cleanCalled, "Promise clean callback should have been called.");
Test.AssertRaises <ObjectDisposedException>(() => { promise.Resolve(null); });
Test.AssertRaises <ObjectDisposedException>(future.Cancel);
}
public static System.Threading.Tasks.Task <eina.Value> WrapAsync(eina.Future future, CancellationToken token)
{
// Creates a task that will wait for SetResult for completion.
// TaskCompletionSource is used to create tasks for 'external' Task sources.
var tcs = new System.Threading.Tasks.TaskCompletionSource <eina.Value>();
// Flag to be passed to the cancell callback
bool fulfilled = false;
future.Then((eina.Value received) => {
lock (future)
{
// Convert an failed Future to a failed Task.
if (received.GetValueType() == eina.ValueType.Error)
{
eina.Error err;
received.Get(out err);
if (err == eina.Error.ECANCELED)
{
tcs.SetCanceled();
}
else
{
tcs.TrySetException(new efl.FutureException(received));
}
}
else
{
// Will mark the returned task below as completed.
tcs.SetResult(received);
}
fulfilled = true;
return(received);
}
});
// Callback to be called when the token is cancelled.
token.Register(() => {
lock (future)
{
// Will trigger the Then callback above with an eina.Error
if (!fulfilled)
{
future.Cancel();
}
}
});
return(tcs.Task);
}
public static void test_then_chain_array()
{
bool[] callbacksCalled = { false, false, false, false };
eina.Value[] received_value = { null, null, null, null };
FutureCbGenerator genResolvedCb = (int i) => {
return((eina.Value value) => {
callbacksCalled[i] = true;
int x;
value.Get(out x);
value.Set(x + i);
received_value[i] = value;
return value;
});
};
var cbs = new List <eina.Future.ResolvedCb>();
for (int i = 0; i < 4; i++)
{
cbs.Add(genResolvedCb(i));
}
efl.ILoop loop = efl.App.GetLoopMain();
eina.Promise promise = new eina.Promise();
eina.Future future = new eina.Future(promise);
future = future.Chain(cbs);
eina.Value reference_value = new eina.Value(eina.ValueType.Int32);
reference_value.Set(0);
promise.Resolve(reference_value);
loop.Iterate();
int current_value = 0;
for (int i = 0; i < 4; i++)
{
current_value += i;
Test.Assert(callbacksCalled[i], $"Future chained callback {i} should have been called.");
int received;
received_value[i].Get(out received);
Test.AssertEquals(received, current_value);
}
Test.AssertRaises <ObjectDisposedException>(() => { promise.Resolve(null); });
Test.AssertRaises <ObjectDisposedException>(future.Cancel);
}
public static void test_simple_future_cancel()
{
bool callbackCalled = false;
bool promiseCallbackCalled = false;
eina.Error received_error = eina.Error.NO_ERROR;
eina.Promise promise = new eina.Promise(() => { promiseCallbackCalled = true; });
eina.Future future = new eina.Future(promise);
future = future.Then((eina.Value value) => {
callbackCalled = true;
value.Get(out received_error);
return(value);
});
future.Cancel();
Test.Assert(promiseCallbackCalled, "Promise cancel callback should have been called.");
Test.Assert(callbackCalled, "Future callback should have been called.");
Test.AssertEquals(received_error, eina.Error.ECANCELED);
}
