1 files changed, 122 insertions, 0 deletions
diff --git a/browser/components/downloads/test/browser/browser_library_clearall.js b/browser/components/downloads/test/browser/browser_library_clearall.js
new file mode 100644
index 0000000000..022d1b6977
--- /dev/null
+++ b/browser/components/downloads/test/browser/browser_library_clearall.js
@@ -0,0 +1,122 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+ChromeUtils.defineESModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.sys.mjs",
+});
+
+let win;
+
+function waitForChildren(element, callback) {
+  let MutationObserver = element.ownerGlobal.MutationObserver;
+  return new Promise(resolve => {
+    let observer = new MutationObserver(() => {
+      if (callback()) {
+        observer.disconnect();
+        resolve();
+      }
+    });
+    observer.observe(element, { childList: true });
+  });
+}
+
+async function waitForChildrenLength(element, length, callback) {
+  if (element.childElementCount != length) {
+    await waitForChildren(element, () => element.childElementCount == length);
+  }
+}
+
+registerCleanupFunction(async function () {
+  await task_resetState();
+  await PlacesUtils.history.clear();
+});
+
+async function testClearingDownloads(clearCallback) {
+  const DOWNLOAD_DATA = [
+    httpUrl("file1.txt"),
+    httpUrl("file2.txt"),
+    httpUrl("file3.txt"),
+  ];
+
+  let listbox = win.document.getElementById("downloadsListBox");
+  ok(listbox, "download list box present");
+
+  let promiseLength = waitForChildrenLength(listbox, DOWNLOAD_DATA.length);
+  await simulateDropAndCheck(win, listbox, DOWNLOAD_DATA);
+  await promiseLength;
+
+  let receivedNotifications = [];
+  const promiseNotification = PlacesTestUtils.waitForNotification(
+    "page-removed",
+    events => {
+      for (const { url, isRemovedFromStore } of events) {
+        Assert.ok(isRemovedFromStore);
+
+        if (DOWNLOAD_DATA.includes(url)) {
+          receivedNotifications.push(url);
+        }
+      }
+      return receivedNotifications.length == DOWNLOAD_DATA.length;
+    }
+  );
+
+  promiseLength = waitForChildrenLength(listbox, 0);
+  await clearCallback(listbox);
+  await promiseLength;
+
+  await promiseNotification;
+
+  Assert.deepEqual(
+    receivedNotifications.sort(),
+    DOWNLOAD_DATA.sort(),
+    "Should have received notifications for each URL"
+  );
+}
+
+add_setup(async function () {
+  // Ensure that state is reset in case previous tests didn't finish.
+  await task_resetState();
+
+  await setDownloadDir();
+
+  startServer();
+
+  win = await openLibrary("Downloads");
+  registerCleanupFunction(function () {
+    win.close();
+  });
+});
+
+add_task(async function test_clear_downloads_toolbar() {
+  await testClearingDownloads(async () => {
+    win.document.getElementById("clearDownloadsButton").click();
+  });
+});
+
+add_task(async function test_clear_downloads_context_menu() {
+  await testClearingDownloads(async listbox => {
+    // Select one of the downloads.
+    listbox.itemChildren[0].click();
+
+    let contextMenu = win.document.getElementById("downloadsContextMenu");
+
+    let popupShownPromise = BrowserTestUtils.waitForEvent(
+      contextMenu,
+      "popupshown"
+    );
+    EventUtils.synthesizeMouseAtCenter(
+      listbox.itemChildren[0],
+      { type: "contextmenu", button: 2 },
+      win
+    );
+    await popupShownPromise;
+
+    // Find the clear context item.
+    let clearDownloadsButton = [...contextMenu.children].find(
+      child => child.command == "downloadsCmd_clearDownloads"
+    );
+    contextMenu.activateItem(clearDownloadsButton);
+  });
+});