зеркало из https://github.com/mozilla/gecko-dev.git
79 строки
2.9 KiB
JavaScript
79 строки
2.9 KiB
JavaScript
const TEST_URL = "http://www.example.com/browser/dom/base/test/dummy.html";
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var ppmm = Services.ppmm;
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add_task(async function(){
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// We want to count processes in this test, so let's disable the pre-allocated process manager.
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await SpecialPowers.pushPrefEnv({"set": [
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["dom.ipc.processPrelaunch.enabled", false],
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["dom.ipc.processCount", 10],
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["dom.ipc.keepProcessesAlive.web", 10],
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]});
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});
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// Ensure that the preloaded browser exists, and it's finished loading.
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async function ensurePreloaded(gBrowser) {
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gBrowser._createPreloadBrowser();
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// We cannot use the regular BrowserTestUtils helper for waiting here, since that
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// would try to insert the preloaded browser, which would only break things.
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await BrowserTestUtils.waitForCondition( () => {
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return gBrowser._preloadedBrowser.contentDocument.readyState == "complete";
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});
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}
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add_task(async function(){
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// This test is only relevant in e10s.
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if (!gMultiProcessBrowser)
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return;
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ppmm.releaseCachedProcesses();
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// Wait for the preloaded browser to load.
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await ensurePreloaded(gBrowser);
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// Store the number of processes (note: +1 for the parent process).
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const { childCount: originalChildCount } = ppmm;
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// Use the preloaded browser and create another one.
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BrowserOpenTab();
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let tab1 = gBrowser.selectedTab;
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await ensurePreloaded(gBrowser);
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// Check that the process count did not change.
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is(ppmm.childCount, originalChildCount, "Preloaded browser should not create a new content process.")
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// Let's do another round.
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BrowserOpenTab();
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let tab2 = gBrowser.selectedTab;
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await ensurePreloaded(gBrowser);
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// Check that the process count did not change.
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is(ppmm.childCount, originalChildCount, "Preloaded browser should (still) not create a new content process.")
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// Navigate to a content page from the parent side.
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tab2.linkedBrowser.loadURI(TEST_URL);
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await BrowserTestUtils.browserLoaded(tab2.linkedBrowser, false, TEST_URL);
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is(ppmm.childCount, originalChildCount + 1,
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"Navigating away from the preloaded browser (parent side) should create a new content process.")
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// Navigate to a content page from the child side.
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await BrowserTestUtils.switchTab(gBrowser, tab1);
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await ContentTask.spawn(tab1.linkedBrowser, null, async function() {
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const TEST_URL = "http://www.example.com/browser/dom/base/test/dummy.html";
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content.location.href = TEST_URL;
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});
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await BrowserTestUtils.browserLoaded(tab1.linkedBrowser, false, TEST_URL);
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is(ppmm.childCount, originalChildCount + 2,
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"Navigating away from the preloaded browser (child side) should create a new content process.")
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await BrowserTestUtils.removeTab(tab1);
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await BrowserTestUtils.removeTab(tab2);
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// Make sure the preload browser does not keep any of the new processes alive.
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gBrowser.removePreloadedBrowser();
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// Since we kept alive all the processes, we can shut down the ones that do
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// not host any tabs reliably.
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ppmm.releaseCachedProcesses();
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});
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