public void can_reject_simple_promise() {
var ex = new Exception();
var promise = new Promise<int>(ex);
var errors = 0;
promise.Catch(e => {
Assert.Equal(ex, e);
++errors;
});
Assert.Equal(1, errors);
}
public void NotCallBeforePromiseIsRejectedTest()
{
var promise = new Promise <object>();
var exception = new Exception();
var onRejected = false;
promise.Catch((result) => {
onRejected = true;
});
var task = Task.Factory.StartNew(() => {
Thread.Sleep(100);
Assert.AreEqual(false, onRejected);
});
task.Wait();
}
public void _must_have_a_reason_which_must_not_change()
{
var rejectedPromise = new Promise <object>();
var reason = new Exception();
var handled = 0;
rejectedPromise.Catch(e =>
{
Assert.Equal(reason, e);
++handled;
});
rejectedPromise.Reject(reason);
Assert.Throws <ApplicationException>(() => rejectedPromise.Reject(new Exception()));
Assert.Equal(1, handled);
}
public void can_reject_promise_and_trigger_error_handler_with_registration_after_reject()
{
var promise = new Promise();
var ex = new ApplicationException();
promise.Reject(ex);
var completed = 0;
promise.Catch(e =>
{
Assert.Equal(ex, e);
++completed;
});
Assert.Equal(1, completed);
}
public void can_reject_promise_via_reject_function()
{
var ex = new Exception();
var promise = new Promise((resolve, reject) =>
{
reject(ex);
});
var completed = 0;
promise.Catch(e =>
{
Assert.Equal(ex, e);
++completed;
});
Assert.Equal(1, completed);
}
public void exception_thrown_during_resolver_rejects_proimse()
{
var ex = new Exception();
var promise = new Promise((resolve, reject) =>
{
throw ex;
});
var completed = 0;
promise.Catch(e =>
{
Assert.Equal(ex, e);
++completed;
});
Assert.Equal(1, completed);
}
public void CanRejectPromiseAndTriggerErrorHandlerWithRegistrationAfterReject()
{
var promise = new Promise <int>();
var ex = new Exception();
promise.Reject(ex);
var completed = 0;
promise.Catch(e =>
{
Assert.AreEqual(ex, e);
++completed;
});
Assert.AreEqual(1, completed);
}
public void ExceptionThrownDuringResolverRejectsProimse()
{
var ex = new Exception();
var promise = new Promise <int>((resolve, reject) =>
{
throw ex;
});
var completed = 0;
promise.Catch(e =>
{
Assert.AreEqual(ex, e);
++completed;
});
Assert.AreEqual(1, completed);
}
public void NotMoreCallOnRejectedMoreRejectedTest()
{
var timesCalled = 0;
var resultObj = new Exception();
var promise = new Promise <object>();
promise.Catch(
(result) => {
Assert.AreEqual(1, ++timesCalled);
Assert.AreEqual(resultObj, result);
}
);
promise.Reject(resultObj);
promise.Reject(new Exception());
CheckSettled(promise, null, false);
}
public void CallAfterPromiseIsRejectedTest()
{
var promise = new Promise <object>();
var exception = new Exception();
var isRejected = false;
promise.Catch((result) => {
Assert.AreEqual(exception, result);
Assert.AreEqual(isRejected, true);
});
var task = Task.Factory.StartNew(() => {
Thread.Sleep(50);
isRejected = true;
promise.Reject(exception);
});
CheckSettled(promise, null, false);
task.Wait();
}
public void DoubleCatchRejectedPromise()
{
var recaught = false;
var differentError = new Exception("Different Failure.");
var promise = new Promise <int>((fulfill, reject) => {
reject(error);
});
var catchPromise = promise.Catch(e => {
throw differentError;
});
var recaughtPromise = catchPromise.Catch(e => {
recaught = true;
});
Assert.That(promise.Rejected, Is.True);
Assert.That(catchPromise.Rejected, Is.True);
Assert.That(promise.Error, Is.EqualTo(error));
Assert.That(catchPromise.Error, Is.EqualTo(differentError));
Assert.That(recaughtPromise.Rejected, Is.True);
Assert.That(recaughtPromise.Error, Is.EqualTo(differentError));
Assert.That(recaught, Is.True);
}
public void _If_onFulfilled_is_not_a_function_and_promise1_is_fulfilled_promise2_must_be_fulfilled_with_the_same_value_as_promise1()
{
var promise1 = new Promise <object>();
var promise2 = promise1.Catch(_ =>
{
throw new Exception("There shouldn't be an error");
});
var promisedValue = new object();
var promise2ThenHandler = 0;
promise2.Then(v =>
{
Assert.Equal(promisedValue, v);
++promise2ThenHandler;
});
promise1.Resolve(promisedValue);
Assert.Equal(1, promise2ThenHandler);
}
public void NotMoreCallOnRejectedMoreDelayedRejectTest()
{
var timesCalled = 0;
var resultObj = new Exception();
var promise = new Promise <object>();
promise.Catch(
(result) => {
Assert.AreEqual(1, ++timesCalled);
Assert.AreEqual(resultObj, result);
}
);
var task = Task.Factory.StartNew(() => {
promise.Reject(resultObj);
promise.Reject(new Exception());
});
CheckSettled(promise, null, false);
task.Wait();
}
public void CanRejectPromiseAndTriggerErrorHandlerWithRegistrationAfterReject()
{
var promise = new Promise<int>();
var ex = new ApplicationException();
promise.Reject(ex);
var completed = 0;
promise.Catch(e =>
{
Assert.AreEqual(ex, e);
++completed;
});
Assert.AreEqual(1, completed);
}
public void CanRejectPromiseAndTriggerMultipleErrorHandlersInOrder()
{
var promise = new Promise<int>();
var ex = new ApplicationException();
var completed = 0;
promise.Catch(e =>
{
Assert.AreEqual(ex, e);
Assert.AreEqual(1, ++completed);
});
promise.Catch(e =>
{
Assert.AreEqual(ex, e);
Assert.AreEqual(2, ++completed);
});
promise.Reject(ex);
Assert.AreEqual(2, completed);
}
public void can_reject_promise_and_trigger_error_handler()
{
var promise = new Promise();
var ex = new ApplicationException();
var completed = 0;
promise.Catch(e =>
{
Assert.Equal(ex, e);
++completed;
});
promise.Reject(ex);
Assert.Equal(1, completed);
}
public void exception_thrown_during_resolver_rejects_proimse()
{
var ex = new Exception();
var promise = new Promise((resolve, reject) =>
{
throw ex;
});
var completed = 0;
promise.Catch(e =>
{
Assert.Equal(ex, e);
++completed;
});
Assert.Equal(1, completed);
}
public void _when_promise1_is_rejected()
{
var promise1 = new Promise<object>();
var e = new Exception();
var promise2 =
promise1.Catch(_ =>
{
throw e;
});
promise1.Catch(_ =>
{
throw new Exception("This shouldn't happen!");
});
var errorHandledForPromise2 = 0;
promise2.Catch(ex =>
{
Assert.Equal(e, ex);
++errorHandledForPromise2;
});
promise1.Reject(new Exception());
Assert.Equal(1, errorHandledForPromise2);
}
public void ExceptionThrownDuringResolverRejectsProimse()
{
var ex = new Exception();
var promise = new Promise<int>((resolve, reject) =>
{
throw ex;
});
var completed = 0;
promise.Catch(e =>
{
Assert.AreEqual(ex, e);
++completed;
});
Assert.AreEqual(1, completed);
}
public void APromiseMayBeCanceledWhenItIsPending1()
{
string cancelValue = "Cancel";
Action <Promise> validate = promise =>
{
promise
.Then(() => Assert.Fail("Promise was resolved when it should have been canceled."),
() => Assert.Fail("Promise was rejected when it should have been canceled."))
.CatchCancelation(reason => Assert.AreEqual(cancelValue, reason.Value));
Promise.Manager.HandleCompletes();
};
Promise cancelPromise = null;
Action cancel = () => cancelPromise.Cancel(cancelValue);
cancelPromise = Promise.Resolved(0).Then(_ => cancel());
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => { cancel(); return(0); });
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => { cancel(); return(Promise.Resolved()); });
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => { cancel(); return(Promise.Resolved(0)); });
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => cancel(), () => { });
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => cancel(), (string failValue) => { });
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => { cancel(); return(0); }, () => 0);
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => { cancel(); return(0); }, (string failValue) => 0);
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => { cancel(); return(Promise.Resolved()); }, () => Promise.Resolved());
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => { cancel(); return(Promise.Resolved()); }, (string failValue) => Promise.Resolved());
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => { cancel(); return(Promise.Resolved(0)); }, () => Promise.Resolved(0));
validate(cancelPromise);
cancelPromise = Promise.Resolved(0).Then(_ => { cancel(); return(Promise.Resolved(0)); }, (string failValue) => Promise.Resolved(0));
validate(cancelPromise);
Promise <int> rejected = Promise.Rejected <int, string>("Reject");
// Suppress exception.
rejected.Catch(() => { });
rejected.Retain();
cancelPromise = rejected.Then(_ => { }, () => cancel());
validate(cancelPromise);
cancelPromise = rejected.Then(_ => { }, (string failValue) => cancel());
validate(cancelPromise);
cancelPromise = rejected.Then(_ => 0, () => { cancel(); return(0); });
validate(cancelPromise);
cancelPromise = rejected.Then(_ => 0, (string failValue) => { cancel(); return(0); });
validate(cancelPromise);
cancelPromise = rejected.Then(_ => Promise.Resolved(), () => { cancel(); return(Promise.Resolved()); });
validate(cancelPromise);
cancelPromise = rejected.Then(_ => Promise.Resolved(), (string failValue) => { cancel(); return(Promise.Resolved()); });
validate(cancelPromise);
cancelPromise = rejected.Then(_ => Promise.Resolved(0), () => { cancel(); return(Promise.Resolved(0)); });
validate(cancelPromise);
cancelPromise = rejected.Then(_ => Promise.Resolved(0), (string failValue) => { cancel(); return(Promise.Resolved(0)); });
validate(cancelPromise);
cancelPromise = rejected.Catch(() => cancel());
validate(cancelPromise);
cancelPromise = rejected.Catch((string failValue) => cancel());
validate(cancelPromise);
cancelPromise = rejected.Catch(() => { cancel(); return(Promise.Resolved()); });
validate(cancelPromise);
cancelPromise = rejected.Catch((string failValue) => { cancel(); return(Promise.Resolved()); });
validate(cancelPromise);
rejected.Release();
// Clean up.
Promise.Manager.HandleCompletesAndProgress();
GC.Collect();
Promise.Manager.HandleCompletesAndProgress();
LogAssert.NoUnexpectedReceived();
}
public void can_reject_promise_and_trigger_multiple_error_handlers_in_order() {
var promise = new Promise<int>();
var ex = new ApplicationException();
var completed = 0;
promise.Catch(e => {
Assert.Equal(ex, e);
Assert.Equal(1, ++completed);
});
promise.Catch(e => {
Assert.Equal(ex, e);
Assert.Equal(2, ++completed);
});
promise.Reject(ex);
Assert.Equal(2, completed);
}
public void _must_have_a_reason_which_must_not_change()
{
var rejectedPromise = new Promise<object>();
var reason = new Exception();
var handled = 0;
rejectedPromise.Catch(e =>
{
Assert.Equal(reason, e);
++handled;
});
rejectedPromise.Reject(reason);
Assert.Throws<ApplicationException>(() => rejectedPromise.Reject(new Exception()));
Assert.Equal(1, handled);
}
public void _when_promise_is_rejected_all_respective_onRejected_callbacks_must_execute_in_the_order_of_their_originating_calls_to_then()
{
var promise = new Promise<object>();
var order = 0;
promise.Catch(_ =>
{
Assert.Equal(1, ++order);
});
promise.Catch(_ =>
{
Assert.Equal(2, ++order);
});
promise.Catch(_ =>
{
Assert.Equal(3, ++order);
});
promise.Reject(new Exception());
Assert.Equal(3, order);
}
public void _If_onFulfilled_is_not_a_function_and_promise1_is_fulfilled_promise2_must_be_fulfilled_with_the_same_value_as_promise1()
{
var promise1 = new Promise<object>();
var promise2 = promise1.Catch(_ =>
{
throw new Exception("There shouldn't be an error");
});
var promisedValue = new object();
var promise2ThenHandler = 0;
promise2.Then(v =>
{
Assert.Equal(promisedValue, v);
++promise2ThenHandler;
});
promise1.Resolve(promisedValue);
Assert.Equal(1, promise2ThenHandler);
}
public void ErrorHandlerIsNotInvokedForResolvedPromised()
{
var promise = new Promise<int>();
promise.Catch(e =>
{
throw new ApplicationException("This shouldn't happen");
});
promise.Resolve(5);
}
public void CanRejectPromiseViaRejectFunction()
{
var ex = new Exception();
var promise = new Promise<int>((resolve, reject) => reject(ex));
var completed = 0;
promise.Catch(e =>
{
Assert.AreEqual(ex, e);
++completed;
});
Assert.AreEqual(1, completed);
}
public void can_reject_promise_via_reject_function()
{
var ex = new Exception();
var promise = new Promise((resolve, reject) =>
{
reject(ex);
});
var completed = 0;
promise.Catch(e =>
{
Assert.Equal(ex, e);
++completed;
});
Assert.Equal(1, completed);
}
public void error_handler_is_not_invoked_for_resolved_promised()
{
var promise = new Promise();
promise.Catch(e =>
{
throw new ApplicationException("This shouldn't happen");
});
promise.Resolve();
}
public void _when_promise1_is_resolved_2()
{
var promise1 = new Promise<object>();
var e = new Exception();
Action<object> thenHandler = _ =>
{
throw e;
};
var promise2 =
promise1.Then(thenHandler);
promise1.Catch(_ =>
{
throw new Exception("This shouldn't happen!");
});
var errorHandledForPromise2 = 0;
promise2.Catch(ex =>
{
Assert.Equal(e, ex);
++errorHandledForPromise2;
});
promise1.Resolve(new object());
Assert.Equal(1, errorHandledForPromise2);
}
