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Bug 1144578: browser_tab_dragdrop.js uses CPOWs and frequently fails.

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This commit is contained in:
Dave Townsend 2015-03-25 13:45:09 -07:00
parent a37ae86523
commit 137415ca71
1 changed files with 52 additions and 8 deletions
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60
browser/base/content/test/general/browser_tab_dragdrop.js
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@ -32,6 +32,55 @@ function loadURI(tab, url) {
return BrowserTestUtils.browserLoaded(tab.linkedBrowser);
}
// Creates a framescript which caches the current object value from the plugin
// in the page. checkObjectValue below verifies that the framescript is still
// active for the browser and that the cached value matches that from the plugin
// in the page which tells us the plugin hasn't been reinitialized.
function cacheObjectValue(browser) {
let frame_script = function() {
let plugin = content.document.wrappedJSObject.body.firstChild;
let objectValue = plugin.getObjectValue();
addMessageListener("Test:CheckObjectValue", () => {
try {
let plugin = content.document.wrappedJSObject.body.firstChild;
sendAsyncMessage("Test:CheckObjectValue", {
result: plugin.checkObjectValue(objectValue)
});
}
catch (e) {
sendAsyncMessage("Test:CheckObjectValue", {
result: null,
exception: e.toString()
});
}
});
};
browser.messageManager.loadFrameScript("data:,(" + frame_script.toString() + ")();", false)
}
// See the notes for cacheObjectValue above.
function checkObjectValue(browser) {
let mm = browser.messageManager;
return new Promise((resolve, reject) => {
let listener = ({ data }) => {
mm.removeMessageListener("Test:CheckObjectValue", listener);
if (data.result === null) {
ok(false, "checkObjectValue threw an exception: " + data.exception);
reject(data.exception);
}
else {
resolve(data.result);
}
};
mm.addMessageListener("Test:CheckObjectValue", listener);
mm.sendAsyncMessage("Test:CheckObjectValue");
});
}
add_task(function*() {
let embed = '<embed type="application/x-test" allowscriptaccess="always" allowfullscreen="true" wmode="window" width="640" height="480"></embed>'
setTestPluginEnabledState(Ci.nsIPluginTag.STATE_ENABLED);
@ -57,15 +106,12 @@ add_task(function*() {
is(gBrowser.tabs[2], tabs[3], "tab3");
is(gBrowser.tabs[3], tabs[4], "tab4");
let plugin = tabs[4].linkedBrowser.contentDocument.wrappedJSObject.body.firstChild;
let tab4_plugin_object = plugin.getObjectValue();
cacheObjectValue(tabs[4].linkedBrowser);
swapTabsAndCloseOther(3, 2); // now: 0 1 4
gBrowser.selectedTab = gBrowser.tabs[2];
let doc = gBrowser.tabs[2].linkedBrowser.contentDocument.wrappedJSObject;
plugin = doc.body.firstChild;
ok(plugin && plugin.checkObjectValue(tab4_plugin_object), "same plugin instance");
ok((yield checkObjectValue(gBrowser.tabs[2].linkedBrowser)), "same plugin instance");
is(gBrowser.tabs[1], tabs[1], "tab1");
is(gBrowser.tabs[2], tabs[3], "tab4");
@ -77,9 +123,7 @@ add_task(function*() {
swapTabsAndCloseOther(2, 1); // now: 0 4
is(gBrowser.tabs[1], tabs[1], "tab1");
doc = gBrowser.tabs[1].linkedBrowser.contentDocument.wrappedJSObject;
plugin = doc.body.firstChild;
ok(plugin && plugin.checkObjectValue(tab4_plugin_object), "same plugin instance");
ok((yield checkObjectValue(gBrowser.tabs[1].linkedBrowser)), "same plugin instance");
yield clickTest(gBrowser.tabs[1]);