gecko-dev/browser/devtools/debugger/test/browser_dbg_tabactor-02.js

/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

/**
 * Check extension-added tab actor lifetimes.
 */

const CHROME_URL = "chrome://mochitests/content/browser/browser/devtools/debugger/test/"
const ACTORS_URL = CHROME_URL + "testactors.js";
const TAB_URL = EXAMPLE_URL + "doc_empty-tab-01.html";

let gClient;

function test() {
  if (!DebuggerServer.initialized) {
    DebuggerServer.init(() => true);
    DebuggerServer.addBrowserActors();
  }

  DebuggerServer.addActors(ACTORS_URL);

  let transport = DebuggerServer.connectPipe();
  gClient = new DebuggerClient(transport);
  gClient.connect((aType, aTraits) => {
    is(aType, "browser",
      "Root actor should identify itself as a browser.");

    addTab(TAB_URL)
      .then(() => attachTabActorForUrl(gClient, TAB_URL))
      .then(testTabActor)
      .then(closeTab)
      .then(closeConnection)
      .then(finish)
      .then(null, aError => {
        ok(false, "Got an error: " + aError.message + "\n" + aError.stack);
      });
  });
}

function testTabActor([aGrip, aResponse]) {
  let deferred = promise.defer();

  ok(aGrip.testTabActor1,
    "Found the test tab actor.");
  ok(aGrip.testTabActor1.contains("test_one"),
    "testTabActor1's actorPrefix should be used.");

  gClient.request({ to: aGrip.testTabActor1, type: "ping" }, aResponse => {
    is(aResponse.pong, "pong",
      "Actor should respond to requests.");

    deferred.resolve(aResponse.actor);
  });

  return deferred.promise;
}

function closeTab(aTestActor) {
  return removeTab(gBrowser.selectedTab).then(() => {
    let deferred = promise.defer();

    try {
      gClient.request({ to: aTestActor, type: "ping" }, aResponse => {
        ok(false, "testTabActor1 didn't go away with the tab.");
        deferred.reject(aResponse);
      });
    } catch(e) {
      is(e.message, "'ping' request packet has no destination.", "testTabActor1 went away.");
      deferred.resolve();
    }

    return deferred.promise;
  });
}

function closeConnection() {
  let deferred = promise.defer();
  gClient.close(deferred.resolve);
  return deferred.promise;
}

registerCleanupFunction(function() {
  gClient = null;
});