add clock + tests

1 files changed, 244 insertions, 0 deletions

diff --git a/tests/test-clock.cc b/tests/test-clock.cc
new file mode 100644
index 0000000..a0b4360
--- /dev/null
+++ b/tests/test-clock.cc
@@ -0,0 +1,244 @@
+/*
+ * Copyright 2013 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *   Charles Kerr <charles.kerr@canonical.com>
+ */
+
+#include <datetime/clock.h>
+#include <datetime/timezones.h>
+
+#include "glib-fixture.h"
+
+/***
+****
+***/
+
+using unity::indicator::datetime::Clock;
+using unity::indicator::datetime::LiveClock;
+using unity::indicator::datetime::Timezones;
+
+class ClockFixture: public GlibFixture
+{
+  private:
+
+    typedef GlibFixture super;
+
+    static void
+    on_bus_opened (GObject * o G_GNUC_UNUSED, GAsyncResult * res, gpointer gself)
+    {
+      auto self = static_cast<ClockFixture*>(gself);
+
+      GError * err = 0;
+      self->system_bus = g_bus_get_finish (res, &err);
+      g_assert_no_error (err);
+
+      g_main_loop_quit (self->loop);
+    }
+
+    static void
+    on_bus_closed (GObject * o G_GNUC_UNUSED, GAsyncResult * res, gpointer gself)
+    {
+      auto self = static_cast<ClockFixture*>(gself);
+
+      GError * err = 0;
+      g_dbus_connection_close_finish (self->system_bus, res, &err);
+      g_assert_no_error (err);
+
+      g_main_loop_quit (self->loop);
+    }
+
+  protected:
+
+    GTestDBus * test_dbus;
+    GDBusConnection * system_bus;
+
+    virtual void SetUp ()
+    {
+      super::SetUp ();
+
+      // pull up a test dbus
+      test_dbus = g_test_dbus_new (G_TEST_DBUS_NONE);
+      g_test_dbus_up (test_dbus);
+      const char * address = g_test_dbus_get_bus_address (test_dbus);
+      g_setenv ("DBUS_SYSTEM_BUS_ADDRESS", address, TRUE);
+      g_debug ("test_dbus's address is %s", address);
+
+      // wait for the GDBusConnection before returning
+      g_bus_get (G_BUS_TYPE_SYSTEM, nullptr, on_bus_opened, this);
+      g_main_loop_run (loop);
+    }
+
+    virtual void TearDown ()
+    {
+      // close the system bus
+      g_dbus_connection_close (system_bus, nullptr, on_bus_closed, this);
+      g_main_loop_run (loop);
+      g_clear_object (&system_bus);
+
+      // tear down the test dbus
+      g_test_dbus_down (test_dbus);
+      g_clear_object (&test_dbus);
+
+      super::TearDown ();
+    }
+
+  public:
+
+    void emitPrepareForSleep ()
+    {
+      g_dbus_connection_emit_signal (g_bus_get_sync (G_BUS_TYPE_SYSTEM, nullptr, nullptr),
+                                     NULL,
+                                     "/org/freedesktop/login1", // object path
+                                     "org.freedesktop.login1.Manager", // interface
+                                     "PrepareForSleep", // signal name
+                                     g_variant_new("(b)", FALSE),
+                                     NULL);
+    }
+};
+
+/***
+****
+***/
+
+#define TIMEZONE_FILE (SANDBOX"/timezone")
+
+TEST_F (ClockFixture, HelloFixture)
+{
+    std::shared_ptr<Timezones> zones (new Timezones);
+    zones->timezone.set("America/New_York");
+    LiveClock clock (zones);
+
+#if 0
+    GTimeZone * tz_nyc = g_time_zone_new (file_timezone.c_str());
+    GDateTime * now_nyc = g_date_time_new_now (tz_nyc);
+    GDateTime * now = clock.localtime();
+    EXPECT_EQ (g_date_time_get_utc_offset(now_nyc), g_date_time_get_utc_offset(now));
+    EXPECT_LE (abs(g_date_time_difference(now_nyc,now)), G_USEC_PER_SEC);
+    g_date_time_unref (now);
+    g_date_time_unref (now_nyc);
+    g_time_zone_unref (tz_nyc);
+
+    /// change the timezones!
+    clock.skewDetected.connect([this](){
+                    g_main_loop_quit(loop);
+                });
+    file_timezone = "America/Los_Angeles";
+    g_idle_add ([](gpointer str){
+                    set_file(static_cast<const char*>(str));
+                    return G_SOURCE_REMOVE;
+                }, const_cast<char*>(file_timezone.c_str()));
+    g_main_loop_run (loop);
+
+    GTimeZone * tz_la = g_time_zone_new (file_timezone.c_str());
+    GDateTime * now_la = g_date_time_new_now (tz_la);
+    now = clock.localtime();
+    EXPECT_EQ (g_date_time_get_utc_offset(now_la), g_date_time_get_utc_offset(now));
+    EXPECT_LE (abs(g_date_time_difference(now_la,now)), G_USEC_PER_SEC);
+    g_date_time_unref (now);
+    g_date_time_unref (now_la);
+    g_time_zone_unref (tz_la);
+#endif
+}
+
+
+TEST_F (ClockFixture, TimezoneChangeTriggersSkew)
+{
+    std::shared_ptr<Timezones> zones (new Timezones);
+    zones->timezone.set("America/New_York");
+    LiveClock clock (zones);
+    //std::string file_timezone = "America/New_York";
+    //set_file (file_timezone);
+    //std::shared_ptr<TimezoneDetector> detector (new TimezoneDetector(TIMEZONE_FILE));
+    //LiveClock clock (detector);
+
+    GTimeZone * tz_nyc = g_time_zone_new ("America/New_York");
+    GDateTime * now_nyc = g_date_time_new_now (tz_nyc);
+    GDateTime * now = clock.localtime();
+    EXPECT_EQ (g_date_time_get_utc_offset(now_nyc), g_date_time_get_utc_offset(now));
+    EXPECT_LE (abs(g_date_time_difference(now_nyc,now)), G_USEC_PER_SEC);
+    g_date_time_unref (now);
+    g_date_time_unref (now_nyc);
+    g_time_zone_unref (tz_nyc);
+
+    /// change the timezones!
+    clock.skewDetected.connect([this](){
+                    g_main_loop_quit(loop);
+                });
+    g_idle_add ([](gpointer gs){
+                    static_cast<Timezones*>(gs)->timezone.set("America/Los_Angeles");
+                    return G_SOURCE_REMOVE;
+                }, zones.get());
+    g_main_loop_run (loop);
+
+    GTimeZone * tz_la = g_time_zone_new ("America/Los_Angeles");
+    GDateTime * now_la = g_date_time_new_now (tz_la);
+    now = clock.localtime();
+    EXPECT_EQ (g_date_time_get_utc_offset(now_la), g_date_time_get_utc_offset(now));
+    EXPECT_LE (abs(g_date_time_difference(now_la,now)), G_USEC_PER_SEC);
+    g_date_time_unref (now);
+    g_date_time_unref (now_la);
+    g_time_zone_unref (tz_la);
+}
+
+/**
+ * Confirm that a "PrepareForSleep" event wil trigger a skew event
+ */
+TEST_F (ClockFixture, SleepTriggersSkew)
+{
+    std::shared_ptr<Timezones> zones (new Timezones);
+    zones->timezone.set("America/New_York");
+    LiveClock clock (zones);
+    wait_msec (500); // wait for the bus to set up
+
+    bool skewed = false;
+    clock.skewDetected.connect([&skewed, this](){
+                    skewed = true;
+                    g_main_loop_quit(loop);
+                    return G_SOURCE_REMOVE;
+                });
+
+    g_idle_add ([](gpointer gself){
+                    static_cast<ClockFixture*>(gself)->emitPrepareForSleep();
+                    return G_SOURCE_REMOVE;
+                }, this);
+
+    wait_msec (1000);
+    EXPECT_TRUE(skewed);
+}
+
+/**
+ * Confirm that normal time passing doesn't trigger a skew event.
+ * that idling changing the clock's time triggers a skew event
+ */
+TEST_F (ClockFixture, IdleDoesNotTriggerSkew)
+{
+    std::shared_ptr<Timezones> zones (new Timezones);
+    zones->timezone.set("America/New_York");
+    LiveClock clock (zones);
+    wait_msec (500); // wait for the bus to set up
+
+    bool skewed = false;
+    clock.skewDetected.connect([&skewed](){
+                    skewed = true;
+                    g_warn_if_reached();
+                    return G_SOURCE_REMOVE;
+                });
+
+    const unsigned int intervalSec = 4;
+    clock.skewTestIntervalSec.set(intervalSec);
+    wait_msec (intervalSec * 2.5 * 1000);
+    EXPECT_FALSE (skewed);
+}