1 files changed, 92 insertions, 0 deletions
diff --git a/browser/modules/test/unit/test_HomePage.js b/browser/modules/test/unit/test_HomePage.js
new file mode 100644
index 0000000000..0fb1030f1d
--- /dev/null
+++ b/browser/modules/test/unit/test_HomePage.js
@@ -0,0 +1,92 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+"use strict";
+
+const { XPCOMUtils } = ChromeUtils.importESModule(
+  "resource://gre/modules/XPCOMUtils.sys.mjs"
+);
+
+ChromeUtils.defineESModuleGetters(this, {
+  RemoteSettings: "resource://services-settings/remote-settings.sys.mjs",
+  sinon: "resource://testing-common/Sinon.sys.mjs",
+});
+
+XPCOMUtils.defineLazyModuleGetters(this, {
+  HomePage: "resource:///modules/HomePage.jsm",
+});
+
+const HOMEPAGE_IGNORELIST = "homepage-urls";
+
+/**
+ * Provides a basic set of remote settings for use in tests.
+ */
+async function setupRemoteSettings() {
+  const settings = await RemoteSettings("hijack-blocklists");
+  sinon.stub(settings, "get").returns([
+    {
+      id: HOMEPAGE_IGNORELIST,
+      matches: ["ignore=me"],
+      _status: "synced",
+    },
+  ]);
+}
+
+add_task(async function setup() {
+  await setupRemoteSettings();
+});
+
+add_task(function test_HomePage() {
+  Assert.ok(
+    !HomePage.overridden,
+    "Homepage should not be overriden by default."
+  );
+  let newvalue = "about:blank|about:newtab";
+  HomePage.safeSet(newvalue);
+  Assert.ok(HomePage.overridden, "Homepage should be overriden after set()");
+  Assert.equal(HomePage.get(), newvalue, "Homepage should be ${newvalue}");
+  Assert.notEqual(
+    HomePage.getDefault(),
+    newvalue,
+    "Homepage should be ${newvalue}"
+  );
+  HomePage.reset();
+  Assert.ok(
+    !HomePage.overridden,
+    "Homepage should not be overriden by after reset."
+  );
+  Assert.equal(
+    HomePage.get(),
+    HomePage.getDefault(),
+    "Homepage and default should be equal after reset."
+  );
+});
+
+add_task(function test_readLocalizedHomepage() {
+  let newvalue = "data:text/plain,browser.startup.homepage%3Dabout%3Alocalized";
+  let complexvalue = Cc["@mozilla.org/pref-localizedstring;1"].createInstance(
+    Ci.nsIPrefLocalizedString
+  );
+  complexvalue.data = newvalue;
+  Services.prefs
+    .getDefaultBranch(null)
+    .setComplexValue(
+      "browser.startup.homepage",
+      Ci.nsIPrefLocalizedString,
+      complexvalue
+    );
+  Assert.ok(!HomePage.overridden, "Complex value only works as default");
+  Assert.equal(HomePage.get(), "about:localized", "Get value from bundle");
+});
+
+add_task(function test_recoverEmptyHomepage() {
+  Assert.ok(
+    !HomePage.overridden,
+    "Homepage should not be overriden by default."
+  );
+  Services.prefs.setStringPref("browser.startup.homepage", "");
+  Assert.ok(HomePage.overridden, "Homepage is overriden with empty string.");
+  Assert.equal(HomePage.get(), HomePage.getDefault(), "Recover is default");
+  Assert.ok(!HomePage.overridden, "Recover should have set default");
+});