1 files changed, 226 insertions, 0 deletions
diff --git a/docshell/test/browser/browser_browsingContext-webProgress.js b/docshell/test/browser/browser_browsingContext-webProgress.js
new file mode 100644
index 0000000000..54b5400efd
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+++ b/docshell/test/browser/browser_browsingContext-webProgress.js
@@ -0,0 +1,226 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_task(async function () {
+  const tab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    "about:blank"
+  );
+  const browser = tab.linkedBrowser;
+  const aboutBlankBrowsingContext = browser.browsingContext;
+  const { webProgress } = aboutBlankBrowsingContext;
+  ok(
+    webProgress,
+    "Got a WebProgress interface on BrowsingContext in the parent process"
+  );
+  is(
+    webProgress.browsingContext,
+    browser.browsingContext,
+    "WebProgress.browsingContext refers to the right BrowsingContext"
+  );
+
+  const onLocationChanged = waitForNextLocationChange(webProgress);
+  const newLocation = "data:text/html;charset=utf-8,first-page";
+  let loaded = BrowserTestUtils.browserLoaded(browser);
+  BrowserTestUtils.loadURIString(browser, newLocation);
+  await loaded;
+
+  const firstPageBrowsingContext = browser.browsingContext;
+  const isBfcacheInParentEnabled =
+    SpecialPowers.Services.appinfo.sessionHistoryInParent &&
+    SpecialPowers.Services.prefs.getBoolPref("fission.bfcacheInParent");
+  if (isBfcacheInParentEnabled) {
+    isnot(
+      aboutBlankBrowsingContext,
+      firstPageBrowsingContext,
+      "With bfcache in parent, navigations spawn a new BrowsingContext"
+    );
+  } else {
+    is(
+      aboutBlankBrowsingContext,
+      firstPageBrowsingContext,
+      "Without bfcache in parent, navigations reuse the same BrowsingContext"
+    );
+  }
+
+  info("Wait for onLocationChange to be fired");
+  {
+    const { browsingContext, location, request, flags } =
+      await onLocationChanged;
+    is(
+      browsingContext,
+      firstPageBrowsingContext,
+      "Location change fires on the new BrowsingContext"
+    );
+    ok(location instanceof Ci.nsIURI);
+    is(location.spec, newLocation);
+    ok(request instanceof Ci.nsIChannel);
+    is(request.URI.spec, newLocation);
+    is(flags, 0);
+  }
+
+  const onIframeLocationChanged = waitForNextLocationChange(webProgress);
+  const iframeLocation = "data:text/html;charset=utf-8,iframe";
+  const iframeBC = await SpecialPowers.spawn(
+    browser,
+    [iframeLocation],
+    async url => {
+      const iframe = content.document.createElement("iframe");
+      await new Promise(resolve => {
+        iframe.addEventListener("load", resolve, { once: true });
+        iframe.src = url;
+        content.document.body.appendChild(iframe);
+      });
+
+      return iframe.browsingContext;
+    }
+  );
+  ok(
+    iframeBC.webProgress,
+    "The iframe BrowsingContext also exposes a WebProgress"
+  );
+  {
+    const { browsingContext, location, request, flags } =
+      await onIframeLocationChanged;
+    is(
+      browsingContext,
+      iframeBC,
+      "Iframe location change fires on the iframe BrowsingContext"
+    );
+    ok(location instanceof Ci.nsIURI);
+    is(location.spec, iframeLocation);
+    ok(request instanceof Ci.nsIChannel);
+    is(request.URI.spec, iframeLocation);
+    is(flags, 0);
+  }
+
+  const onSecondLocationChanged = waitForNextLocationChange(webProgress);
+  const onSecondPageDocumentStart = waitForNextDocumentStart(webProgress);
+  // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+  const secondLocation = "http://example.com/document-builder.sjs?html=com";
+  loaded = BrowserTestUtils.browserLoaded(browser);
+  BrowserTestUtils.loadURIString(browser, secondLocation);
+  await loaded;
+
+  const secondPageBrowsingContext = browser.browsingContext;
+  if (isBfcacheInParentEnabled) {
+    isnot(
+      firstPageBrowsingContext,
+      secondPageBrowsingContext,
+      "With bfcache in parent, navigations spawn a new BrowsingContext"
+    );
+  } else {
+    is(
+      firstPageBrowsingContext,
+      secondPageBrowsingContext,
+      "Without bfcache in parent, navigations reuse the same BrowsingContext"
+    );
+  }
+  {
+    const { browsingContext, location, request, flags } =
+      await onSecondLocationChanged;
+    is(
+      browsingContext,
+      secondPageBrowsingContext,
+      "Second location change fires on the new BrowsingContext"
+    );
+    ok(location instanceof Ci.nsIURI);
+    is(location.spec, secondLocation);
+    ok(request instanceof Ci.nsIChannel);
+    is(request.URI.spec, secondLocation);
+    is(flags, 0);
+  }
+  {
+    const { browsingContext, request } = await onSecondPageDocumentStart;
+    is(
+      browsingContext,
+      firstPageBrowsingContext,
+      "STATE_START, when navigating to another process, fires on the BrowsingContext we navigate *from*"
+    );
+    ok(request instanceof Ci.nsIChannel);
+    is(request.URI.spec, secondLocation);
+  }
+
+  const onBackLocationChanged = waitForNextLocationChange(webProgress, true);
+  const onBackDocumentStart = waitForNextDocumentStart(webProgress);
+  browser.goBack();
+
+  {
+    const { browsingContext, location, request, flags } =
+      await onBackLocationChanged;
+    is(
+      browsingContext,
+      firstPageBrowsingContext,
+      "location change, when navigating back, fires on the BrowsingContext we navigate *to*"
+    );
+    ok(location instanceof Ci.nsIURI);
+    is(location.spec, newLocation);
+    ok(request instanceof Ci.nsIChannel);
+    is(request.URI.spec, newLocation);
+    is(flags, 0);
+  }
+  {
+    const { browsingContext, request } = await onBackDocumentStart;
+    is(
+      browsingContext,
+      secondPageBrowsingContext,
+      "STATE_START, when navigating back, fires on the BrowsingContext we navigate *from*"
+    );
+    ok(request instanceof Ci.nsIChannel);
+    is(request.URI.spec, newLocation);
+  }
+
+  BrowserTestUtils.removeTab(tab);
+});
+
+function waitForNextLocationChange(webProgress, onlyTopLevel = false) {
+  return new Promise(resolve => {
+    const wpl = {
+      QueryInterface: ChromeUtils.generateQI([
+        "nsIWebProgressListener",
+        "nsISupportsWeakReference",
+      ]),
+      onLocationChange(progress, request, location, flags) {
+        if (onlyTopLevel && progress.browsingContext.parent) {
+          // Ignore non-toplevel.
+          return;
+        }
+        webProgress.removeProgressListener(wpl, Ci.nsIWebProgress.NOTIFY_ALL);
+        resolve({
+          browsingContext: progress.browsingContext,
+          location,
+          request,
+          flags,
+        });
+      },
+    };
+    // Add a strong reference to the progress listener.
+    resolve.wpl = wpl;
+    webProgress.addProgressListener(wpl, Ci.nsIWebProgress.NOTIFY_ALL);
+  });
+}
+
+function waitForNextDocumentStart(webProgress) {
+  return new Promise(resolve => {
+    const wpl = {
+      QueryInterface: ChromeUtils.generateQI([
+        "nsIWebProgressListener",
+        "nsISupportsWeakReference",
+      ]),
+      onStateChange(progress, request, flags, status) {
+        if (
+          flags & Ci.nsIWebProgressListener.STATE_IS_DOCUMENT &&
+          flags & Ci.nsIWebProgressListener.STATE_START
+        ) {
+          webProgress.removeProgressListener(wpl, Ci.nsIWebProgress.NOTIFY_ALL);
+          resolve({ browsingContext: progress.browsingContext, request });
+        }
+      },
+    };
+    // Add a strong reference to the progress listener.
+    resolve.wpl = wpl;
+    webProgress.addProgressListener(wpl, Ci.nsIWebProgress.NOTIFY_ALL);
+  });
+}