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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
/**
* Make sure we get replies in the same order that we sent their
* requests even when earlier requests take several event ticks to
* complete.
*/
var protocol = require("devtools/shared/protocol");
var {Arg, Option, RetVal} = protocol;
var events = require("sdk/event/core");
function simpleHello() {
return {
from: "root",
applicationType: "xpcshell-tests",
traits: [],
};
}
const rootSpec = protocol.generateActorSpec({
typeName: "root",
methods: {
simpleReturn: {
response: { value: RetVal() },
},
promiseReturn: {
request: { toWait: Arg(0, "number") },
response: { value: RetVal("number") },
},
simpleThrow: {
response: { value: RetVal("number") }
},
promiseThrow: {
response: { value: RetVal("number") },
}
}
});
var RootActor = protocol.ActorClassWithSpec(rootSpec, {
initialize: function (conn) {
protocol.Actor.prototype.initialize.call(this, conn);
// Root actor owns itself.
this.manage(this);
this.actorID = "root";
this.sequence = 0;
},
sayHello: simpleHello,
simpleReturn: function () {
return this.sequence++;
},
promiseReturn: function (toWait) {
// Guarantee that this resolves after simpleReturn returns.
let deferred = promise.defer();
let sequence = this.sequence++;
// Wait until the number of requests specified by toWait have
// happened, to test queuing.
let check = () => {
if ((this.sequence - sequence) < toWait) {
do_execute_soon(check);
return;
}
deferred.resolve(sequence);
};
do_execute_soon(check);
return deferred.promise;
},
simpleThrow: function () {
throw new Error(this.sequence++);
},
promiseThrow: function () {
// Guarantee that this resolves after simpleReturn returns.
let deferred = promise.defer();
let sequence = this.sequence++;
// This should be enough to force a failure if the code is broken.
do_timeout(150, () => {
deferred.reject(sequence++);
});
return deferred.promise;
}
});
var RootFront = protocol.FrontClassWithSpec(rootSpec, {
initialize: function (client) {
this.actorID = "root";
protocol.Front.prototype.initialize.call(this, client);
// Root owns itself.
this.manage(this);
}
});
function run_test()
{
DebuggerServer.createRootActor = RootActor;
DebuggerServer.init();
let trace = connectPipeTracing();
let client = new DebuggerClient(trace);
let rootClient;
client.connect().then(([applicationType, traits]) => {
rootClient = RootFront(client);
let calls = [];
let sequence = 0;
// Execute a call that won't finish processing until 2
// more calls have happened
calls.push(rootClient.promiseReturn(2).then(ret => {
do_check_eq(sequence, 0); // Check right return order
do_check_eq(ret, sequence++); // Check request handling order
}));
// Put a few requests into the backlog
calls.push(rootClient.simpleReturn().then(ret => {
do_check_eq(sequence, 1); // Check right return order
do_check_eq(ret, sequence++); // Check request handling order
}));
calls.push(rootClient.simpleReturn().then(ret => {
do_check_eq(sequence, 2); // Check right return order
do_check_eq(ret, sequence++); // Check request handling order
}));
calls.push(rootClient.simpleThrow().then(() => {
do_check_true(false, "simpleThrow shouldn't succeed!");
}, error => {
do_check_eq(sequence++, 3); // Check right return order
}));
// While packets are sent in the correct order, rejection handlers
// registered in "Promise.jsm" may be invoked later than fulfillment
// handlers, meaning that we can't check the actual order with certainty.
let deferAfterRejection = promise.defer();
calls.push(rootClient.promiseThrow().then(() => {
do_check_true(false, "promiseThrow shouldn't succeed!");
}, error => {
do_check_eq(sequence++, 4); // Check right return order
do_check_true(true, "simple throw should throw");
deferAfterRejection.resolve();
}));
calls.push(rootClient.simpleReturn().then(ret => {
return deferAfterRejection.promise.then(function () {
do_check_eq(sequence, 5); // Check right return order
do_check_eq(ret, sequence++); // Check request handling order
});
}));
// Break up the backlog with a long request that waits
// for another simpleReturn before completing
calls.push(rootClient.promiseReturn(1).then(ret => {
return deferAfterRejection.promise.then(function () {
do_check_eq(sequence, 6); // Check right return order
do_check_eq(ret, sequence++); // Check request handling order
});
}));
calls.push(rootClient.simpleReturn().then(ret => {
return deferAfterRejection.promise.then(function () {
do_check_eq(sequence, 7); // Check right return order
do_check_eq(ret, sequence++); // Check request handling order
});
}));
promise.all(calls).then(() => {
client.close().then(() => {
do_test_finished();
});
});
});
do_test_pending();
}
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