browser_ignore_updates_crashed_tabs.js

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// This test checks that browsers are removed from the SessionStore's

// crashed browser set at a correct time, so that it can stop ignoring update

// events coming from those browsers.

/**

 * Open a tab, crash it, navigate it to a remote uri, and check that it

 * is removed from a crashed set.

*/

add_task(async function test_update_crashed_tab_after_navigate_to_remote() {

  let tab = BrowserTestUtils.addTab(gBrowser, "https://example.com/");

  let browser = tab.linkedBrowser;

  gBrowser.selectedTab = tab;

  await promiseBrowserLoaded(browser);

ok(

    !SessionStore.isBrowserInCrashedSet(browser),

    "browser is not in the crashed set"

);

  await BrowserTestUtils.crashFrame(browser);

ok(

    SessionStore.isBrowserInCrashedSet(browser),

    "browser is in the crashed set"

);

  BrowserTestUtils.startLoadingURIString(browser, "https://example.org/");

  await BrowserTestUtils.browserLoaded(browser, false, "https://example.org/");

ok(

    !SessionStore.isBrowserInCrashedSet(browser),

    "browser is not in the crashed set"

);

ok(

    !tab.hasAttribute("crashed"),

    "Tab shouldn't be marked as crashed anymore."

);

  gBrowser.removeTab(tab);

});

/**

 * Open a tab, crash it, navigate it to a non-remote uri, and check that it

 * is removed from a crashed set.

*/

add_task(async function test_update_crashed_tab_after_navigate_to_non_remote() {

  let tab = BrowserTestUtils.addTab(gBrowser, "https://example.com/");

  let browser = tab.linkedBrowser;

  gBrowser.selectedTab = tab;

  await promiseBrowserLoaded(browser);

ok(

    !SessionStore.isBrowserInCrashedSet(browser),

    "browser is not in the crashed set"

);

  await BrowserTestUtils.crashFrame(browser);

ok(

    SessionStore.isBrowserInCrashedSet(browser),

    "browser is in the crashed set"

);

  BrowserTestUtils.startLoadingURIString(browser, "about:mozilla");

  await BrowserTestUtils.browserLoaded(browser, false, "about:mozilla");

ok(

    !SessionStore.isBrowserInCrashedSet(browser),

    "browser is not in the crashed set"

);

ok(

    !gBrowser.selectedTab.hasAttribute("crashed"),

    "Tab shouldn't be marked as crashed anymore."

);

  gBrowser.removeTab(tab);

});

/**

 * Open a tab, crash it, restore it from history, and check that it

 * is removed from a crashed set.

*/

add_task(async function test_update_crashed_tab_after_session_restore() {

  let tab = BrowserTestUtils.addTab(gBrowser, "https://example.com/");

  let browser = tab.linkedBrowser;

  gBrowser.selectedTab = tab;

  await promiseBrowserLoaded(browser);

ok(

    !SessionStore.isBrowserInCrashedSet(browser),

    "browser is not in the crashed set"

);

  await BrowserTestUtils.crashFrame(browser);

ok(

    SessionStore.isBrowserInCrashedSet(browser),

    "browser is in the crashed set"

);

  let tabRestoredPromise = promiseTabRestored(tab);

  // Click restoreTab button

  await SpecialPowers.spawn(browser, [], () => {

    let button = content.document.getElementById("restoreTab");

    button.click();

});

  await tabRestoredPromise;

ok(

    !tab.hasAttribute("crashed"),

    "Tab shouldn't be marked as crashed anymore."

);

ok(

    !SessionStore.isBrowserInCrashedSet(browser),

    "browser is not in the crashed set"

);

  gBrowser.removeTab(tab);

});