diff -r 000000000000 -r 6474c204b198 browser/experiments/test/xpcshell/test_cache.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/experiments/test/xpcshell/test_cache.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,259 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+Cu.import("resource://testing-common/httpd.js");
+XPCOMUtils.defineLazyModuleGetter(this, "Experiments",
+  "resource:///modules/experiments/Experiments.jsm");
+
+const FILE_MANIFEST            = "experiments.manifest";
+const MANIFEST_HANDLER         = "manifests/handler";
+
+const SEC_IN_ONE_DAY  = 24 * 60 * 60;
+const MS_IN_ONE_DAY   = SEC_IN_ONE_DAY * 1000;
+
+let gProfileDir          = null;
+let gHttpServer          = null;
+let gHttpRoot            = null;
+let gDataRoot            = null;
+let gReporter            = null;
+let gPolicy              = null;
+let gManifestObject      = null;
+let gManifestHandlerURI  = null;
+let gTimerScheduleOffset = -1;
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* test_setup() {
+  loadAddonManager();
+  gProfileDir = do_get_profile();
+  yield removeCacheFile();
+
+  gHttpServer = new HttpServer();
+  gHttpServer.start(-1);
+  let port = gHttpServer.identity.primaryPort;
+  gHttpRoot = "http://localhost:" + port + "/";
+  gDataRoot = gHttpRoot + "data/";
+  gManifestHandlerURI = gHttpRoot + MANIFEST_HANDLER;
+  gHttpServer.registerDirectory("/data/", do_get_cwd());
+  gHttpServer.registerPathHandler("/" + MANIFEST_HANDLER, (request, response) => {
+    response.setStatusLine(null, 200, "OK");
+    response.write(JSON.stringify(gManifestObject));
+    response.processAsync();
+    response.finish();
+  });
+  do_register_cleanup(() => gHttpServer.stop(() => {}));
+
+  disableCertificateChecks();
+
+  Services.prefs.setBoolPref(PREF_EXPERIMENTS_ENABLED, true);
+  Services.prefs.setIntPref(PREF_LOGGING_LEVEL, 0);
+  Services.prefs.setBoolPref(PREF_LOGGING_DUMP, true);
+  Services.prefs.setCharPref(PREF_MANIFEST_URI, gManifestHandlerURI);
+  Services.prefs.setIntPref(PREF_FETCHINTERVAL, 0);
+
+  gReporter = yield getReporter("json_payload_simple");
+  yield gReporter.collectMeasurements();
+  let payload = yield gReporter.getJSONPayload(true);
+  do_register_cleanup(() => gReporter._shutdown());
+
+  gPolicy = new Experiments.Policy();
+  patchPolicy(gPolicy, {
+    updatechannel: () => "nightly",
+    healthReportPayload: () => {},
+    oneshotTimer: (callback, timeout, thisObj, name) => gTimerScheduleOffset = timeout,
+  });
+});
+
+function checkExperimentListsEqual(list, list2) {
+  Assert.equal(list.length, list2.length, "Lists should have the same length.")
+
+  for (let i=0; i<list.length; ++i) {
+    for (let k of Object.keys(list[i])) {
+      Assert.equal(list[i][k], list2[i][k],
+                   "Field '" + k + "' should match for list entry " + i + ".");
+    }
+  }
+}
+
+function checkExperimentSerializations(experimentEntryIterator) {
+  for (let experiment of experimentEntryIterator) {
+    let experiment2 = new Experiments.ExperimentEntry(gPolicy);
+    let jsonStr = JSON.stringify(experiment.toJSON());
+    Assert.ok(experiment2.initFromCacheData(JSON.parse(jsonStr)),
+              "Should have initialized successfully from JSON serialization.");
+    Assert.equal(JSON.stringify(experiment), JSON.stringify(experiment2),
+                 "Object stringifications should match.");
+  }
+}
+
+// Set up an experiments instance and check if it is properly restored from cache.
+
+add_task(function* test_cache() {
+  // The manifest data we test with.
+
+  gManifestObject = {
+    "version": 1,
+    experiments: [
+      {
+        id:               EXPERIMENT1_ID,
+        xpiURL:           gDataRoot + EXPERIMENT1_XPI_NAME,
+        xpiHash:          EXPERIMENT1_XPI_SHA1,
+        maxActiveSeconds: 10 * SEC_IN_ONE_DAY,
+        appName:          ["XPCShell"],
+        channel:          ["nightly"],
+      },
+      {
+        id:               EXPERIMENT2_ID,
+        xpiURL:           gDataRoot + EXPERIMENT2_XPI_NAME,
+        xpiHash:          EXPERIMENT2_XPI_SHA1,
+        maxActiveSeconds: 10 * SEC_IN_ONE_DAY,
+        appName:          ["XPCShell"],
+        channel:          ["nightly"],
+      },
+      {
+        id:               EXPERIMENT3_ID,
+        xpiURL:           "https://inval.id/foo.xpi",
+        xpiHash:          "sha1:0000000000000000000000000000000000000000",
+        maxActiveSeconds: 10 * SEC_IN_ONE_DAY,
+        appName:          ["XPCShell"],
+        channel:          ["nightly"],
+      },
+    ],
+  };
+
+  // Setup dates for the experiments.
+
+  let baseDate   = new Date(2014, 5, 1, 12);
+  let startDates = [];
+  let endDates   = [];
+
+  for (let i=0; i<gManifestObject.experiments.length; ++i) {
+    let experiment = gManifestObject.experiments[i];
+    startDates.push(futureDate(baseDate, (50 + (150 * i)) * MS_IN_ONE_DAY));
+    endDates  .push(futureDate(startDates[i], 50 * MS_IN_ONE_DAY));
+    experiment.startTime = dateToSeconds(startDates[i]);
+    experiment.endTime   = dateToSeconds(endDates[i]);
+  }
+
+  // Data to compare the result of Experiments.getExperiments() against.
+
+  let experimentListData = [
+    {
+      id: EXPERIMENT2_ID,
+      name: "Test experiment 2",
+      description: "And yet another experiment that experiments experimentally.",
+    },
+    {
+      id: EXPERIMENT1_ID,
+      name: EXPERIMENT1_NAME,
+      description: "Yet another experiment that experiments experimentally.",
+    },
+  ];
+
+  // Trigger update & re-init, clock set to before any activation.
+
+  let now = baseDate;
+  defineNow(gPolicy, now);
+
+  let experiments = new Experiments.Experiments(gPolicy);
+  yield experiments.updateManifest();
+  let list = yield experiments.getExperiments();
+  Assert.equal(list.length, 0, "Experiment list should be empty.");
+  checkExperimentSerializations(experiments._experiments.values());
+
+  yield experiments.uninit();
+  experiments = new Experiments.Experiments(gPolicy);
+
+  yield experiments._run();
+  list = yield experiments.getExperiments();
+  Assert.equal(list.length, 0, "Experiment list should be empty.");
+  checkExperimentSerializations(experiments._experiments.values());
+
+  // Re-init, clock set for experiment 1 to start.
+
+  now = futureDate(startDates[0], 5 * MS_IN_ONE_DAY);
+  defineNow(gPolicy, now);
+
+  yield experiments.uninit();
+  experiments = new Experiments.Experiments(gPolicy);
+  yield experiments._run();
+
+  list = yield experiments.getExperiments();
+  Assert.equal(list.length, 1, "Experiment list should have 1 entry now.");
+
+  experimentListData[1].active = true;
+  experimentListData[1].endDate = now.getTime() + 10 * MS_IN_ONE_DAY;
+  checkExperimentListsEqual(experimentListData.slice(1), list);
+  checkExperimentSerializations(experiments._experiments.values());
+
+  let branch = yield experiments.getExperimentBranch(EXPERIMENT1_ID);
+  Assert.strictEqual(branch, null);
+
+  yield experiments.setExperimentBranch(EXPERIMENT1_ID, "testbranch");
+  branch = yield experiments.getExperimentBranch(EXPERIMENT1_ID);
+  Assert.strictEqual(branch, "testbranch");
+
+  // Re-init, clock set for experiment 1 to stop.
+
+  now = futureDate(now, 20 * MS_IN_ONE_DAY);
+  defineNow(gPolicy, now);
+
+  yield experiments.uninit();
+  experiments = new Experiments.Experiments(gPolicy);
+  yield experiments._run();
+
+  list = yield experiments.getExperiments();
+  Assert.equal(list.length, 1, "Experiment list should have 1 entry.");
+
+  experimentListData[1].active = false;
+  experimentListData[1].endDate = now.getTime();
+  checkExperimentListsEqual(experimentListData.slice(1), list);
+  checkExperimentSerializations(experiments._experiments.values());
+
+  branch = yield experiments.getExperimentBranch(EXPERIMENT1_ID);
+  Assert.strictEqual(branch, "testbranch");
+
+  // Re-init, clock set for experiment 2 to start.
+
+  now = futureDate(startDates[1], 20 * MS_IN_ONE_DAY);
+  defineNow(gPolicy, now);
+
+  yield experiments.uninit();
+  experiments = new Experiments.Experiments(gPolicy);
+  yield experiments._run();
+
+  list = yield experiments.getExperiments();
+  Assert.equal(list.length, 2, "Experiment list should have 2 entries.");
+
+  experimentListData[0].active = true;
+  experimentListData[0].endDate = now.getTime() + 10 * MS_IN_ONE_DAY;
+  checkExperimentListsEqual(experimentListData, list);
+  checkExperimentSerializations(experiments._experiments.values());
+
+  // Re-init, clock set for experiment 2 to stop.
+
+  now = futureDate(now, 20 * MS_IN_ONE_DAY);
+  defineNow(gPolicy, now);
+
+  yield experiments.uninit();
+  experiments = new Experiments.Experiments(gPolicy);
+  yield experiments._run();
+
+  list = yield experiments.getExperiments();
+  Assert.equal(list.length, 2, "Experiment list should have 2 entries.");
+
+  experimentListData[0].active = false;
+  experimentListData[0].endDate = now.getTime();
+  checkExperimentListsEqual(experimentListData, list);
+  checkExperimentSerializations(experiments._experiments.values());
+
+  // Cleanup.
+
+  yield experiments._toggleExperimentsEnabled(false);
+  yield experiments.uninit();
+  yield removeCacheFile();
+});