fune/browser/base/content/test/general/browser_lastAccessedTab.js

47 lines
1.3 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
// gBrowser.selectedTab.lastAccessed and Date.now() called from this test can't
// run concurrently, and therefore don't always match exactly.
const CURRENT_TIME_TOLERANCE_MS = 15;
function isCurrent(tab, msg) {
const DIFF = Math.abs(Date.now() - tab.lastAccessed);
ok(DIFF <= CURRENT_TIME_TOLERANCE_MS, msg + " (difference: " + DIFF + ")");
}
function nextStep(fn) {
setTimeout(fn, CURRENT_TIME_TOLERANCE_MS + 10);
}
var originalTab;
var newTab;
function test() {
waitForExplicitFinish();
originalTab = gBrowser.selectedTab;
nextStep(step2);
}
function step2() {
isCurrent(originalTab, "selected tab has the current timestamp");
newTab = gBrowser.addTab("about:blank", {skipAnimation: true});
nextStep(step3);
}
function step3() {
ok(newTab.lastAccessed < Date.now(), "new tab hasn't been selected so far");
gBrowser.selectedTab = newTab;
isCurrent(newTab, "new tab has the current timestamp after being selected");
nextStep(step4);
}
function step4() {
ok(originalTab.lastAccessed < Date.now(),
"original tab has old timestamp after being deselected");
isCurrent(newTab, "new tab has the current timestamp since it's still selected");
gBrowser.removeTab(newTab);
finish();
}