diff -r 000000000000 -r 6474c204b198 toolkit/components/places/tests/unit/test_telemetry.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/places/tests/unit/test_telemetry.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,144 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests common Places telemetry probes by faking the telemetry service.
+
+Components.utils.import("resource://gre/modules/PlacesDBUtils.jsm");
+
+let histograms = {
+  PLACES_PAGES_COUNT: function (val) do_check_eq(val, 1),
+  PLACES_BOOKMARKS_COUNT: function (val) do_check_eq(val, 1),
+  PLACES_TAGS_COUNT: function (val) do_check_eq(val, 1),
+  PLACES_FOLDERS_COUNT: function (val) do_check_eq(val, 1),
+  PLACES_KEYWORDS_COUNT: function (val) do_check_eq(val, 1),
+  PLACES_SORTED_BOOKMARKS_PERC: function (val) do_check_eq(val, 100),
+  PLACES_TAGGED_BOOKMARKS_PERC: function (val) do_check_eq(val, 100),
+  PLACES_DATABASE_FILESIZE_MB: function (val) do_check_true(val > 0),
+  // The journal may have been truncated.
+  PLACES_DATABASE_JOURNALSIZE_MB: function (val) do_check_true(val >= 0),
+  PLACES_DATABASE_PAGESIZE_B: function (val) do_check_eq(val, 32768),
+  PLACES_DATABASE_SIZE_PER_PAGE_B: function (val) do_check_true(val > 0),
+  PLACES_EXPIRATION_STEPS_TO_CLEAN2: function (val) do_check_true(val > 1),
+  //PLACES_AUTOCOMPLETE_1ST_RESULT_TIME_MS:  function (val) do_check_true(val > 1),
+  PLACES_IDLE_FRECENCY_DECAY_TIME_MS: function (val) do_check_true(val > 0),
+  PLACES_IDLE_MAINTENANCE_TIME_MS: function (val) do_check_true(val > 0),
+  PLACES_ANNOS_BOOKMARKS_COUNT: function (val) do_check_eq(val, 1),
+  PLACES_ANNOS_BOOKMARKS_SIZE_KB: function (val) do_check_eq(val, 1),
+  PLACES_ANNOS_PAGES_COUNT: function (val) do_check_eq(val, 1),
+  PLACES_ANNOS_PAGES_SIZE_KB: function (val) do_check_eq(val, 1),
+  PLACES_FRECENCY_CALC_TIME_MS: function (val) do_check_true(val >= 0),
+}
+
+function run_test()
+{
+  run_next_test();
+}
+
+add_task(function test_execute()
+{
+  // Put some trash in the database.
+  const URI = NetUtil.newURI("http://moz.org/");
+
+  let folderId = PlacesUtils.bookmarks.createFolder(PlacesUtils.unfiledBookmarksFolderId,
+                                                    "moz test",
+                                                    PlacesUtils.bookmarks.DEFAULT_INDEX);
+  let itemId = PlacesUtils.bookmarks.insertBookmark(folderId,
+                                                    uri,
+                                                    PlacesUtils.bookmarks.DEFAULT_INDEX,
+                                                    "moz test");
+  PlacesUtils.tagging.tagURI(uri, ["tag"]);
+  PlacesUtils.bookmarks.setKeywordForBookmark(itemId, "keyword");
+
+  // Set a large annotation.
+  let content = "";
+  while (content.length < 1024) {
+    content += "0";
+  }
+  PlacesUtils.annotations.setItemAnnotation(itemId, "test-anno", content, 0,
+                                            PlacesUtils.annotations.EXPIRE_NEVER);
+  PlacesUtils.annotations.setPageAnnotation(uri, "test-anno", content, 0,
+                                            PlacesUtils.annotations.EXPIRE_NEVER);
+
+  // Request to gather telemetry data.
+  Cc["@mozilla.org/places/categoriesStarter;1"]
+    .getService(Ci.nsIObserver)
+    .observe(null, "gather-telemetry", null);
+
+  yield promiseAsyncUpdates();
+
+  // Test expiration probes.
+  for (let i = 0; i < 2; i++) {
+    yield promiseAddVisits({
+      uri: uri("http://" +  i + ".moz.org/"),
+      visitDate: Date.now() // [sic]
+    });
+  }
+  Services.prefs.setIntPref("places.history.expiration.max_pages", 0);
+  let expire = Cc["@mozilla.org/places/expiration;1"].getService(Ci.nsIObserver);
+  expire.observe(null, "places-debug-start-expiration", 1);
+  expire.observe(null, "places-debug-start-expiration", -1);
+
+  // Test autocomplete probes.
+  /*
+  // This is useful for manual testing by changing the minimum time for
+  // autocomplete telemetry to 0, but there is no way to artificially delay
+  // autocomplete by more than 50ms in a realiable way.
+  Services.prefs.setIntPref("browser.urlbar.search.sources", 3);
+  Services.prefs.setIntPref("browser.urlbar.default.behavior", 0);
+  function AutoCompleteInput(aSearches) {
+    this.searches = aSearches;
+  }
+  AutoCompleteInput.prototype = {
+    timeout: 10,
+    textValue: "",
+    searchParam: "",
+    popupOpen: false,
+    minResultsForPopup: 0,
+    invalidate: function() {},
+    disableAutoComplete: false,
+    completeDefaultIndex: false,
+    get popup() { return this; },
+    onSearchBegin: function() {},
+    onSearchComplete: function() {},
+    setSelectedIndex: function() {},
+    get searchCount() { return this.searches.length; },
+    getSearchAt: function(aIndex) this.searches[aIndex],
+    QueryInterface: XPCOMUtils.generateQI([
+      Ci.nsIAutoCompleteInput,
+      Ci.nsIAutoCompletePopup,
+    ])
+  };
+  let controller = Cc["@mozilla.org/autocomplete/controller;1"].
+                   getService(Ci.nsIAutoCompleteController);
+  controller.input = new AutoCompleteInput(["history"]);
+  controller.startSearch("moz");
+  */
+
+  // Test idle probes.
+  PlacesUtils.history.QueryInterface(Ci.nsIObserver)
+                     .observe(null, "idle-daily", null);
+  PlacesDBUtils.maintenanceOnIdle();
+
+  yield promiseTopicObserved("places-maintenance-finished");
+
+  for (let histogramId in histograms) {
+    do_log_info("checking histogram " + histogramId);
+    let validate = histograms[histogramId];
+    let snapshot = Services.telemetry.getHistogramById(histogramId).snapshot();
+    validate(snapshot.sum);
+    do_check_true(snapshot.counts.reduce(function(a, b) a + b) > 0);
+  }
+});
+
+add_test(function test_healthreport_callback() {
+  PlacesDBUtils.telemetry(null, function onResult(data) {
+    do_check_neq(data, null);
+
+    do_check_eq(Object.keys(data).length, 2);
+    do_check_eq(data.PLACES_PAGES_COUNT, 1);
+    do_check_eq(data.PLACES_BOOKMARKS_COUNT, 1);
+
+    run_next_test();
+  });
+});
+