1 files changed, 183 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fetch/fetch-later/send-on-deactivate.tentative.https.window.js b/testing/web-platform/tests/fetch/fetch-later/send-on-deactivate.tentative.https.window.js
new file mode 100644
index 0000000000..d91c73580a
--- /dev/null
+++ b/testing/web-platform/tests/fetch/fetch-later/send-on-deactivate.tentative.https.window.js
@@ -0,0 +1,183 @@
+// META: script=/common/dispatcher/dispatcher.js
+// META: script=/common/get-host-info.sub.js
+// META: script=/common/utils.js
+// META: script=/html/browsers/browsing-the-web/remote-context-helper/resources/remote-context-helper.js
+// META: script=/html/browsers/browsing-the-web/back-forward-cache/resources/rc-helper.js
+// META: script=/pending-beacon/resources/pending_beacon-helper.js
+
+'use strict';
+
+// NOTE: Due to the restriction of WPT runner, the following tests are all run
+// with BackgroundSync off, which is different from some browsers,
+// e.g. Chrome, default behavior, as the testing infra does not support enabling
+// it.
+
+parallelPromiseTest(async t => {
+  const uuid = token();
+  const url = generateSetBeaconURL(uuid);
+  // Sets no option to test the default behavior when a document enters BFCache.
+  const helper = new RemoteContextHelper();
+  // Opens a window with noopener so that BFCache will work.
+  const rc1 = await helper.addWindow(
+      /*config=*/ null, /*options=*/ {features: 'noopener'});
+
+  // Creates a fetchLater request with default config in remote, which should
+  // only be sent on page discarded (not on entering BFCache).
+  await rc1.executeScript(url => {
+    fetchLater(url);
+    // Add a pageshow listener to stash the BFCache event.
+    window.addEventListener('pageshow', e => {
+      window.pageshowEvent = e;
+    });
+  }, [url]);
+  // Navigates away to let page enter BFCache.
+  const rc2 = await rc1.navigateToNew();
+  // Navigates back.
+  await rc2.historyBack();
+  // Verifies the page was BFCached.
+  assert_true(await rc1.executeScript(() => {
+    return window.pageshowEvent.persisted;
+  }));
+
+  // Theoretically, the request should still be pending thus 0 request received.
+  // However, 1 request is sent, as by default the WPT test runner, e.g.
+  // content_shell in Chromium, does not enable BackgroundSync permission,
+  // resulting in forcing request sending on every navigation.
+  await expectBeacon(uuid, {count: 1});
+}, `fetchLater() sends on page entering BFCache if BackgroundSync is off.`);
+
+parallelPromiseTest(async t => {
+  const uuid = token();
+  const url = generateSetBeaconURL(uuid);
+  const helper = new RemoteContextHelper();
+  // Opens a window with noopener so that BFCache will work.
+  const rc1 = await helper.addWindow(
+      /*config=*/ null, /*options=*/ {features: 'noopener'});
+
+  // When the remote is put into BFCached, creates a fetchLater request w/
+  // activateAfter = 0s. It should be sent out immediately.
+  await rc1.executeScript(url => {
+    window.addEventListener('pagehide', e => {
+      if (e.persisted) {
+        fetchLater(url, {activateAfter: 0});
+      }
+    });
+    // Add a pageshow listener to stash the BFCache event.
+    window.addEventListener('pageshow', e => {
+      window.pageshowEvent = e;
+    });
+  }, [url]);
+  // Navigates away to trigger request sending.
+  const rc2 = await rc1.navigateToNew();
+  // Navigates back.
+  await rc2.historyBack();
+  // Verifies the page was BFCached.
+  assert_true(await rc1.executeScript(() => {
+    return window.pageshowEvent.persisted;
+  }));
+
+  // NOTE: In this case, it does not matter if BackgroundSync is on or off.
+  await expectBeacon(uuid, {count: 1});
+}, `Call fetchLater() when BFCached with activateAfter=0 sends immediately.`);
+
+parallelPromiseTest(async t => {
+  const uuid = token();
+  const url = generateSetBeaconURL(uuid);
+  // Sets no option to test the default behavior when a document gets discarded
+  // on navigated away.
+  const helper = new RemoteContextHelper();
+  // Opens a window without BFCache.
+  const rc1 = await helper.addWindow();
+
+  // Creates a fetchLater request in remote which should only be sent on
+  // navigating away.
+  await rc1.executeScript(url => {
+    fetchLater(url);
+    // Add a pageshow listener to stash the BFCache event.
+    window.addEventListener('pageshow', e => {
+      window.pageshowEvent = e;
+    });
+  }, [url]);
+  // Navigates away to trigger request sending.
+  const rc2 = await rc1.navigateToNew();
+  // Navigates back.
+  await rc2.historyBack();
+  // Verifies the page was NOT BFCached.
+  assert_equals(undefined, await rc1.executeScript(() => {
+    return window.pageshowEvent;
+  }));
+
+  // NOTE: In this case, it does not matter if BackgroundSync is on or off.
+  await expectBeacon(uuid, {count: 1});
+}, `fetchLater() sends on navigating away a page w/o BFCache.`);
+
+parallelPromiseTest(async t => {
+  const uuid = token();
+  const url = generateSetBeaconURL(uuid);
+  // Sets no option to test the default behavior when a document gets discarded
+  // on navigated away.
+  const helper = new RemoteContextHelper();
+  // Opens a window without BFCache.
+  const rc1 = await helper.addWindow();
+
+  // Creates 2 fetchLater requests in remote, and one of them is aborted
+  // immediately. The other one should only be sent right on navigating away.
+  await rc1.executeScript(url => {
+    const controller = new AbortController();
+    fetchLater(url, {signal: controller.signal});
+    fetchLater(url);
+    controller.abort();
+    // Add a pageshow listener to stash the BFCache event.
+    window.addEventListener('pageshow', e => {
+      window.pageshowEvent = e;
+    });
+  }, [url]);
+  // Navigates away to trigger request sending.
+  const rc2 = await rc1.navigateToNew();
+  // Navigates back.
+  await rc2.historyBack();
+  // Verifies the page was NOT BFCached.
+  assert_equals(undefined, await rc1.executeScript(() => {
+    return window.pageshowEvent;
+  }));
+
+  // NOTE: In this case, it does not matter if BackgroundSync is on or off.
+  await expectBeacon(uuid, {count: 1});
+}, `fetchLater() does not send aborted request on navigating away a page w/o BFCache.`);
+
+parallelPromiseTest(async t => {
+  const uuid = token();
+  const url = generateSetBeaconURL(uuid);
+  const options = {activateAfter: 60000};
+  const helper = new RemoteContextHelper();
+  // Opens a window with noopener so that BFCache will work.
+  const rc1 = await helper.addWindow(
+      /*config=*/ null, /*options=*/ {features: 'noopener'});
+
+  // Creates a fetchLater request in remote which should only be sent on
+  // navigating away.
+  await rc1.executeScript((url) => {
+    // Sets activateAfter = 1m to indicate the request should NOT be sent out
+    // immediately.
+    fetchLater(url, {activateAfter: 60000});
+    // Adds a pageshow listener to stash the BFCache event.
+    window.addEventListener('pageshow', e => {
+      window.pageshowEvent = e;
+    });
+  }, [url]);
+  // Navigates away to trigger request sending.
+  const rc2 = await rc1.navigateToNew();
+  // Navigates back.
+  await rc2.historyBack();
+  // Verifies the page was BFCached.
+  assert_true(await rc1.executeScript(() => {
+    return window.pageshowEvent.persisted;
+  }));
+
+  // Theoretically, the request should still be pending thus 0 request received.
+  // However, 1 request is sent, as by default the WPT test runner, e.g.
+  // content_shell in Chromium, does not enable BackgroundSync permission,
+  // resulting in forcing request sending on every navigation, even if page is
+  // put into BFCache.
+  await expectBeacon(uuid, {count: 1});
+}, `fetchLater() with activateAfter=1m sends on page entering BFCache if BackgroundSync is off.`);