Bug 1550131 - Automated test for master password prompt from about:logins. r=MattN

Differential Revision: https://phabricator.services.mozilla.com/D31125

--HG--
extra : moz-landing-system : lando

browser/components/aboutlogins/tests/browser/browser.ini

@@ -5,5 +5,6 @@ prefs =
 [browser_copyToClipboardButton.js]
 [browser_deleteLogin.js]
 [browser_loginListChanges.js]
+[browser_masterPassword.js]
 [browser_openSite.js]
 [browser_updateLogin.js]

browser/components/aboutlogins/tests/browser/browser_masterPassword.js

@@ -0,0 +1,81 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+ChromeUtils.import("resource://testing-common/LoginTestUtils.jsm", this);
+
+/**
+ * Waits for the master password prompt and performs an action.
+ * @param {string} action Set to "authenticate" to log in or "cancel" to
+ *        close the dialog without logging in.
+ */
+function waitForMPDialog(action) {
+  let dialogShown = TestUtils.topicObserved("common-dialog-loaded");
+  return dialogShown.then(function([subject]) {
+    let dialog = subject.Dialog;
+    is(dialog.args.title, "Password Required", "Dialog is the Master Password dialog");
+    if (action == "authenticate") {
+      SpecialPowers.wrap(dialog.ui.password1Textbox)
+                   .setUserInput(LoginTestUtils.masterPassword.masterPassword);
+      dialog.ui.button0.click();
+    } else if (action == "cancel") {
+      dialog.ui.button1.click();
+    }
+    return BrowserTestUtils.waitForEvent(window, "DOMModalDialogClosed");
+  });
+}
+
+function getNumberOfLoginsDisplayed(browser) {
+  return ContentTask.spawn(browser, null, async () => {
+    let loginList = Cu.waiveXrays(content.document.querySelector("login-list"));
+    return loginList._logins.length;
+  });
+}
+
+add_task(async function test() {
+  let login = LoginTestUtils.testData.formLogin({
+    hostname: "https://example.com",
+    formSubmitURL: "https://example.com",
+    username: "username",
+    password: "password",
+  });
+
+  Services.logins.addLogin(login);
+  LoginTestUtils.masterPassword.enable();
+
+  let mpDialogShown = waitForMPDialog("cancel");
+  await BrowserTestUtils.openNewForegroundTab({gBrowser, url: "about:logins"});
+  await mpDialogShown;
+
+  registerCleanupFunction(function() {
+    LoginTestUtils.masterPassword.disable();
+    Services.logins.removeAllLogins();
+    BrowserTestUtils.removeTab(gBrowser.selectedTab);
+  });
+
+  let browser = gBrowser.selectedBrowser;
+  let logins = await getNumberOfLoginsDisplayed(browser);
+  is(logins, 0, "No logins should be displayed when MP is set and unauthenticated");
+
+  let notification;
+  await BrowserTestUtils.waitForCondition(() =>
+    notification = gBrowser.getNotificationBox().getNotificationWithValue("master-password-login-required"));
+
+  ok(notification, "master-password-login-required notification should be visible");
+
+  let buttons = notification.querySelectorAll(".notification-button");
+  is(buttons.length, 1, "Should have one button.");
+
+  let refreshPromise = BrowserTestUtils.browserLoaded(browser);
+  // Sign in with the Master Password this time the dialog is shown
+  mpDialogShown = waitForMPDialog("authenticate");
+  // Click the button to reload the page.
+  buttons[0].click();
+  await refreshPromise;
+  info("Page reloaded");
+
+  await mpDialogShown;
+  info("Master Password dialog shown and authenticated");
+
+  logins = await getNumberOfLoginsDisplayed(browser);
+  is(logins, 1, "Logins should be displayed when MP is set and authenticated");
+});