1 files changed, 50 insertions, 0 deletions
diff --git a/browser/components/urlbar/tests/unit/test_frecency_alternative_nimbus.js b/browser/components/urlbar/tests/unit/test_frecency_alternative_nimbus.js
new file mode 100644
index 0000000000..c2d0e4bae3
--- /dev/null
+++ b/browser/components/urlbar/tests/unit/test_frecency_alternative_nimbus.js
@@ -0,0 +1,50 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const ORIGINS_FEATUREGATE = "places.frecency.origins.alternative.featureGate";
+const ORIGINS_DAYSCUTOFF = "places.frecency.origins.alternative.daysCutOff";
+
+add_task(async function () {
+  let reset = await UrlbarTestUtils.initNimbusFeature(
+    {
+      // Empty for sanity check.
+    },
+    "frecency",
+    "config"
+  );
+  Assert.equal(Services.prefs.getBoolPref(ORIGINS_FEATUREGATE), false);
+  Assert.throws(
+    () => Services.prefs.getIntPref(ORIGINS_DAYSCUTOFF),
+    /NS_ERROR_UNEXPECTED/
+  );
+  await reset();
+
+  reset = await UrlbarTestUtils.initNimbusFeature(
+    {
+      originsAlternativeEnable: true,
+    },
+    "frecency",
+    "config"
+  );
+  Assert.equal(Services.prefs.getBoolPref(ORIGINS_FEATUREGATE), true);
+  Assert.ok(Services.prefs.prefHasUserValue(ORIGINS_FEATUREGATE));
+  Assert.throws(
+    () => Services.prefs.getIntPref(ORIGINS_DAYSCUTOFF),
+    /NS_ERROR_UNEXPECTED/
+  );
+  await reset();
+
+  reset = await UrlbarTestUtils.initNimbusFeature(
+    {
+      originsAlternativeEnable: true,
+      originsDaysCutOff: 60,
+    },
+    "frecency",
+    "config"
+  );
+  Assert.equal(Services.prefs.getBoolPref(ORIGINS_FEATUREGATE), true);
+  Assert.ok(Services.prefs.prefHasUserValue(ORIGINS_FEATUREGATE));
+  Assert.equal(Services.prefs.getIntPref(ORIGINS_DAYSCUTOFF, 90), 60);
+  Assert.ok(Services.prefs.prefHasUserValue(ORIGINS_DAYSCUTOFF));
+  await reset();
+});