1 files changed, 67 insertions, 0 deletions
diff --git a/dom/security/test/https-first/browser_superfluos_auth.js b/dom/security/test/https-first/browser_superfluos_auth.js
new file mode 100644
index 0000000000..961430a444
--- /dev/null
+++ b/dom/security/test/https-first/browser_superfluos_auth.js
@@ -0,0 +1,67 @@
+/* Any copyright is dedicated to the Public Domain.
+ * https://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// This test checks the superfluos auth prompt when HTTPS-First is enabled (Bug 1858565).
+
+const TEST_URI = "https://www.mozilla.org@example.com/";
+
+const { MockRegistrar } = ChromeUtils.importESModule(
+  "resource://testing-common/MockRegistrar.sys.mjs"
+);
+
+let respondMockPromptWithYes = false;
+
+const gMockPromptService = {
+  firstTimeCalled: false,
+  confirmExBC() {
+    return respondMockPromptWithYes ? 0 : 1;
+  },
+
+  QueryInterface: ChromeUtils.generateQI(["nsIPromptService"]),
+};
+
+var gMockPromptServiceCID = MockRegistrar.register(
+  "@mozilla.org/prompter;1",
+  gMockPromptService
+);
+
+registerCleanupFunction(() => {
+  MockRegistrar.unregister(gMockPromptServiceCID);
+});
+
+function checkBrowserLoad(browser) {
+  return new Promise(resolve => {
+    BrowserTestUtils.browserLoaded(browser, false, null, true).then(() => {
+      resolve(true);
+    });
+    BrowserTestUtils.browserStopped(browser, false, null, true).then(() => {
+      resolve(false);
+    });
+  });
+}
+
+add_task(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [["dom.security.https_first", true]],
+  });
+
+  respondMockPromptWithYes = false;
+  let didBrowserLoadPromise = checkBrowserLoad(gBrowser.selectedBrowser);
+  BrowserTestUtils.startLoadingURIString(gBrowser.selectedBrowser, TEST_URI);
+  let didBrowserLoad = await didBrowserLoadPromise;
+  ok(
+    !didBrowserLoad,
+    "The browser should stop the load when the user refuses to load a page with superfluos authentication"
+  );
+
+  respondMockPromptWithYes = true;
+  didBrowserLoadPromise = checkBrowserLoad(gBrowser.selectedBrowser);
+  BrowserTestUtils.startLoadingURIString(gBrowser.selectedBrowser, TEST_URI);
+  didBrowserLoad = await didBrowserLoadPromise;
+  ok(
+    didBrowserLoad,
+    "The browser should load when the user agrees to load a page with superfluos authentication"
+  );
+});