Bug 1241735 - Convert browser_webconsole_bug_614793_jsterm_scroll to be more e10s friendly;r=linclark

--HG--
extra : commitid : CNTSWtDoW4B

devtools/client/webconsole/test/browser_webconsole_bug_614793_jsterm_scroll.js

@@ -2,9 +2,6 @@
 /*
  * Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/
- *
- * Contributor(s):
- *   Mihai Șucan <mihai.sucan@gmail.com>
  */
 
 "use strict";
@@ -12,44 +9,40 @@
 const TEST_URI = "data:text/html;charset=utf-8,Web Console test for " +
                  "bug 614793: jsterm result scroll";
 
-"use strict";
-
 add_task(function* () {
   yield loadTab(TEST_URI);
-
   let hud = yield openConsole();
 
-  yield consoleOpened(hud);
+  yield testScrollPosition(hud);
 });
 
-function consoleOpened(hud) {
-  let deferred = promise.defer();
-
+function* testScrollPosition(hud) {
   hud.jsterm.clearOutput();
 
   let scrollNode = hud.ui.outputWrapper;
 
   for (let i = 0; i < 150; i++) {
+    yield ContentTask.spawn(gBrowser.selectedBrowser, i, function*(i) {
       content.console.log("test message " + i);
+    });
   }
 
   let oldScrollTop = -1;
 
-  waitForMessages({
+  yield waitForMessages({
     webconsole: hud,
     messages: [{
       text: "test message 149",
       category: CATEGORY_WEBDEV,
       severity: SEVERITY_LOG,
     }],
-  }).then(() => {
+  });
+
   oldScrollTop = scrollNode.scrollTop;
   isnot(oldScrollTop, 0, "scroll location is not at the top");
 
-    hud.jsterm.execute("'hello world'").then(onExecute);
-  });
+  let msg = yield hud.jsterm.execute("'hello world'");
 
-  function onExecute(msg) {
   isnot(scrollNode.scrollTop, oldScrollTop, "scroll location updated");
 
   oldScrollTop = scrollNode.scrollTop;
@@ -57,9 +50,4 @@ function consoleOpened(hud) {
   msg.scrollIntoView(false);
 
   is(scrollNode.scrollTop, oldScrollTop, "scroll location is the same");
-
-    deferred.resolve();
-  }
-
-  return deferred.promise;
 }