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Test Info: Errors
- This test failed 11 times in the preceding 30 days. quicksearch this test
- Manifest: browser/base/content/test/favicons/browser.toml
const TEST_PATH =
// eslint-disable-next-line @microsoft/sdl/no-insecure-url
function waitForAttributeChange(tab, attr) {
info(`Waiting for attribute ${attr}`);
return new Promise(resolve => {
let listener = event => {
if (event.detail.changed.includes(attr)) {
tab.removeEventListener("TabAttrModified", listener);
resolve();
}
};
tab.addEventListener("TabAttrModified", listener);
});
}
function waitForPendingIcon() {
return new Promise(resolve => {
let listener = () => {
LinkHandlerParent.removeListenerForTests(listener);
resolve();
};
LinkHandlerParent.addListenerForTests(listener);
});
}
// Verify that the title doesn't flicker if the icon takes too long to load.
// We expect to see events in the following order:
// "label" added to tab
// "busy" removed from tab
// icon available
// In all those cases the title should be in the same position.
add_task(async () => {
await BrowserTestUtils.withNewTab(
{ gBrowser, url: "about:blank" },
async browser => {
let tab = gBrowser.getTabForBrowser(browser);
BrowserTestUtils.startLoadingURIString(
browser,
TEST_PATH + "file_with_slow_favicon.html"
);
await waitForAttributeChange(tab, "label");
ok(tab.hasAttribute("busy"), "Should have seen the busy attribute");
let label = tab.textLabel;
let bounds = label.getBoundingClientRect();
await waitForAttributeChange(tab, "busy");
ok(
!tab.hasAttribute("busy"),
"Should have seen the busy attribute removed"
);
let newBounds = label.getBoundingClientRect();
is(
bounds.x,
newBounds.left,
"Should have seen the title in the same place."
);
await waitForFaviconMessage(true);
newBounds = label.getBoundingClientRect();
is(
bounds.x,
newBounds.left,
"Should have seen the title in the same place."
);
}
);
});
// Verify that the title doesn't flicker if a new icon is detected after load.
add_task(async () => {
let iconAvailable = waitForFaviconMessage(true);
await BrowserTestUtils.withNewTab(
{ gBrowser, url: TEST_PATH + "blank.html" },
async browser => {
let icon = await iconAvailable;
// eslint-disable-next-line @microsoft/sdl/no-insecure-url
let tab = gBrowser.getTabForBrowser(browser);
let label = tab.textLabel;
let bounds = label.getBoundingClientRect();
await SpecialPowers.spawn(browser, [], () => {
let link = content.document.createElement("link");
link.setAttribute("href", "file_favicon.png");
link.setAttribute("rel", "icon");
link.setAttribute("type", "image/png");
content.document.head.appendChild(link);
});
ok(
!tab.hasAttribute("pendingicon"),
"Should not have marked a pending icon"
);
let newBounds = label.getBoundingClientRect();
is(
bounds.x,
newBounds.left,
"Should have seen the title in the same place."
);
await waitForPendingIcon();
ok(
!tab.hasAttribute("pendingicon"),
"Should not have marked a pending icon"
);
newBounds = label.getBoundingClientRect();
is(
bounds.x,
newBounds.left,
"Should have seen the title in the same place."
);
icon = await waitForFaviconMessage(true);
is(
icon.iconURL,
TEST_PATH + "file_favicon.png",
"Should have loaded the new icon."
);
ok(
!tab.hasAttribute("pendingicon"),
"Should not have marked a pending icon"
);
newBounds = label.getBoundingClientRect();
is(
bounds.x,
newBounds.left,
"Should have seen the title in the same place."
);
}
);
});
// Verify that pinned tabs don't change size when an icon is pending.
add_task(async () => {
await BrowserTestUtils.withNewTab(
{ gBrowser, url: "about:blank" },
async browser => {
let tab = gBrowser.getTabForBrowser(browser);
gBrowser.pinTab(tab);
let bounds = tab.getBoundingClientRect();
BrowserTestUtils.startLoadingURIString(
browser,
TEST_PATH + "file_with_slow_favicon.html"
);
await waitForAttributeChange(tab, "label");
ok(tab.hasAttribute("busy"), "Should have seen the busy attribute");
let newBounds = tab.getBoundingClientRect();
is(
bounds.width,
newBounds.width,
"Should have seen tab remain the same size."
);
await waitForAttributeChange(tab, "busy");
ok(
!tab.hasAttribute("busy"),
"Should have seen the busy attribute removed"
);
newBounds = tab.getBoundingClientRect();
is(
bounds.width,
newBounds.width,
"Should have seen tab remain the same size."
);
await waitForFaviconMessage(true);
newBounds = tab.getBoundingClientRect();
is(
bounds.width,
newBounds.width,
"Should have seen tab remain the same size."
);
}
);
});