Bug 1572773 - Adds utility functions for opening certviewer to head.js and refactors tests. r=johannh

Differential Revision: https://phabricator.services.mozilla.com/D41424

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

toolkit/components/certviewer/tests/browser/head.js

@@ -0,0 +1,65 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+async function getErrorPage(url) {
+  let browser;
+  let pageLoaded;
+  await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    () => {
+      gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser, url);
+      browser = gBrowser.selectedBrowser;
+      pageLoaded = BrowserTestUtils.waitForErrorPage(browser);
+    },
+    false
+  );
+
+  await pageLoaded;
+  return browser;
+}
+
+async function openViaPageInfo(url) {
+  await getErrorPage(url);
+
+  let pageInfo = BrowserPageInfo(url, "securityTab");
+  await BrowserTestUtils.waitForEvent(pageInfo, "load");
+  let viewCert = pageInfo.document.getElementById("security-view-cert");
+  await TestUtils.waitForCondition(
+    () => BrowserTestUtils.is_visible(viewCert),
+    "View certificate button should be visible."
+  );
+
+  let loaded = BrowserTestUtils.waitForNewTab(gBrowser, null, true);
+
+  viewCert.click();
+
+  await loaded;
+}
+
+async function openViaErrorPage(url) {
+  let browser = await getErrorPage(url);
+
+  let loaded = BrowserTestUtils.waitForNewTab(gBrowser, null, true);
+
+  await ContentTask.spawn(browser, null, async function() {
+    let advancedButton = content.document.getElementById("advancedButton");
+    Assert.ok(advancedButton, "advancedButton found");
+    Assert.equal(
+      advancedButton.hasAttribute("disabled"),
+      false,
+      "advancedButton should be clickable"
+    );
+    advancedButton.click();
+
+    let viewCertificate = content.document.getElementById("viewCertificate");
+    Assert.equal(
+      viewCertificate.hasAttribute("disabled"),
+      false,
+      "viewCertificate should be clickable"
+    );
+    viewCertificate.click();
+  });
+  await loaded;
+}