1 files changed, 153 insertions, 0 deletions
diff --git a/services/sync/tests/unit/test_declined.js b/services/sync/tests/unit/test_declined.js
new file mode 100644
index 000000000..e9e9b002a
--- /dev/null
+++ b/services/sync/tests/unit/test_declined.js
@@ -0,0 +1,153 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+Cu.import("resource://services-sync/stages/declined.js");
+Cu.import("resource://services-sync/stages/enginesync.js");
+Cu.import("resource://services-sync/engines.js");
+Cu.import("resource://services-sync/service.js");
+Cu.import("resource://services-common/observers.js");
+
+function run_test() {
+  run_next_test();
+}
+
+function PetrolEngine() {}
+PetrolEngine.prototype.name = "petrol";
+
+function DieselEngine() {}
+DieselEngine.prototype.name = "diesel";
+
+function DummyEngine() {}
+DummyEngine.prototype.name = "dummy";
+
+function ActualEngine() {}
+ActualEngine.prototype = {__proto__: Engine.prototype,
+                          name: 'actual'};
+
+function getEngineManager() {
+  let manager = new EngineManager(Service);
+  Service.engineManager = manager;
+  manager._engines = {
+    "petrol": new PetrolEngine(),
+    "diesel": new DieselEngine(),
+    "dummy": new DummyEngine(),
+    "actual": new ActualEngine(),
+  };
+  return manager;
+}
+
+/**
+ * 'Fetch' a meta/global record that doesn't mention declined.
+ *
+ * Push it into the EngineSynchronizer to set enabled; verify that those are
+ * correct.
+ *
+ * Then push it into DeclinedEngines to set declined; verify that none are
+ * declined, and a notification is sent for our locally disabled-but-not-
+ * declined engines.
+ */
+add_test(function testOldMeta() {
+  let meta = {
+    payload: {
+      engines: {
+        "petrol": 1,
+        "diesel": 2,
+        "nonlocal": 3,             // Enabled but not supported.
+      },
+    },
+  };
+
+  _("Record: " + JSON.stringify(meta));
+
+  let manager = getEngineManager();
+
+  // Update enabled from meta/global.
+  let engineSync = new EngineSynchronizer(Service);
+  engineSync._updateEnabledFromMeta(meta, 3, manager);
+
+  Assert.ok(manager._engines["petrol"].enabled, "'petrol' locally enabled.");
+  Assert.ok(manager._engines["diesel"].enabled, "'diesel' locally enabled.");
+  Assert.ok(!("nonlocal" in manager._engines), "We don't know anything about the 'nonlocal' engine.");
+  Assert.ok(!manager._engines["actual"].enabled, "'actual' not locally enabled.");
+  Assert.ok(!manager.isDeclined("actual"), "'actual' not declined, though.");
+
+  let declinedEngines = new DeclinedEngines(Service);
+
+  function onNotDeclined(subject, topic, data) {
+    Observers.remove("weave:engines:notdeclined", onNotDeclined);
+    Assert.ok(subject.undecided.has("actual"), "EngineManager observed that 'actual' was undecided.");
+
+    let declined = manager.getDeclined();
+    _("Declined: " + JSON.stringify(declined));
+
+    Assert.ok(!meta.changed, "No need to upload a new meta/global.");
+    run_next_test();
+  }
+
+  Observers.add("weave:engines:notdeclined", onNotDeclined);
+
+  declinedEngines.updateDeclined(meta, manager);
+});
+
+/**
+ * 'Fetch' a meta/global that declines an engine we don't
+ * recognize. Ensure that we track that declined engine along
+ * with any we locally declined, and that the meta/global
+ * record is marked as changed and includes all declined
+ * engines.
+ */
+add_test(function testDeclinedMeta() {
+  let meta = {
+    payload: {
+      engines: {
+        "petrol": 1,
+        "diesel": 2,
+        "nonlocal": 3,             // Enabled but not supported.
+      },
+      declined: ["nonexistent"],   // Declined and not supported.
+    },
+  };
+
+  _("Record: " + JSON.stringify(meta));
+
+  let manager = getEngineManager();
+  manager._engines["petrol"].enabled = true;
+  manager._engines["diesel"].enabled = true;
+  manager._engines["dummy"].enabled = true;
+  manager._engines["actual"].enabled = false;   // Disabled but not declined.
+
+  manager.decline(["localdecline"]);            // Declined and not supported.
+
+  let declinedEngines = new DeclinedEngines(Service);
+
+  function onNotDeclined(subject, topic, data) {
+    Observers.remove("weave:engines:notdeclined", onNotDeclined);
+    Assert.ok(subject.undecided.has("actual"), "EngineManager observed that 'actual' was undecided.");
+
+    let declined = manager.getDeclined();
+    _("Declined: " + JSON.stringify(declined));
+
+    Assert.equal(declined.indexOf("actual"), -1, "'actual' is locally disabled, but not marked as declined.");
+
+    Assert.equal(declined.indexOf("clients"), -1, "'clients' is enabled and not remotely declined.");
+    Assert.equal(declined.indexOf("petrol"), -1, "'petrol' is enabled and not remotely declined.");
+    Assert.equal(declined.indexOf("diesel"), -1, "'diesel' is enabled and not remotely declined.");
+    Assert.equal(declined.indexOf("dummy"), -1, "'dummy' is enabled and not remotely declined.");
+
+    Assert.ok(0 <= declined.indexOf("nonexistent"), "'nonexistent' was declined on the server.");
+
+    Assert.ok(0 <= declined.indexOf("localdecline"), "'localdecline' was declined locally.");
+
+    // The meta/global is modified, too.
+    Assert.ok(0 <= meta.payload.declined.indexOf("nonexistent"), "meta/global's declined contains 'nonexistent'.");
+    Assert.ok(0 <= meta.payload.declined.indexOf("localdecline"), "meta/global's declined contains 'localdecline'.");
+    Assert.strictEqual(true, meta.changed, "meta/global was changed.");
+
+    run_next_test();
+  }
+
+  Observers.add("weave:engines:notdeclined", onNotDeclined);
+
+  declinedEngines.updateDeclined(meta, manager);
+});
+