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Diffstat (limited to 'tests/utils/glib-fixture.h')
| -rw-r--r-- | tests/utils/glib-fixture.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/tests/utils/glib-fixture.h b/tests/utils/glib-fixture.h new file mode 100644 index 0000000..ccdeccd --- /dev/null +++ b/tests/utils/glib-fixture.h @@ -0,0 +1,203 @@ +/* + * Copyright 2013 Canonical Ltd. + * + * Authors: + * Charles Kerr <charles.kerr@canonical.com> + * + * 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/>. + */ + +#pragma once + +#include <functional> // std::function +#include <map> +#include <memory> // std::shared_ptr + +#include <glib.h> +#include <glib/gstdio.h> +#include <gio/gio.h> + +#include <gtest/gtest.h> + +#include <locale.h> // setlocale() + +class GlibFixture : public ::testing::Test +{ + public: + + virtual ~GlibFixture() =default; + + protected: + + virtual void SetUp() override + { + setlocale(LC_ALL, "C.UTF-8"); + + loop = g_main_loop_new(nullptr, false); + +#ifdef SCHEMA_DIR + // only use local, temporary settings + g_assert(g_setenv("GSETTINGS_SCHEMA_DIR", SCHEMA_DIR, true)); + g_assert(g_setenv("GSETTINGS_BACKEND", "memory", true)); + g_debug("SCHEMA_DIR is %s", SCHEMA_DIR); +#endif + + // fail on unexpected messages from this domain + g_log_set_fatal_mask(G_LOG_DOMAIN, G_LOG_LEVEL_WARNING); + + g_unsetenv("DISPLAY"); + + } + + virtual void TearDown() override + { + g_test_assert_expected_messages (); + + g_clear_pointer(&loop, g_main_loop_unref); + } + + void expectLogMessage (const gchar *domain, GLogLevelFlags level, const gchar *pattern) + { + g_test_expect_message (domain, level, pattern); + } + + private: + + static gboolean + wait_for_signal__timeout(gpointer name) + { + g_error("%s: timed out waiting for signal '%s'", G_STRLOC, static_cast<const char*>(name)); + return G_SOURCE_REMOVE; + } + + static gboolean + wait_msec__timeout(gpointer loop) + { + g_main_loop_quit(static_cast<GMainLoop*>(loop)); + return G_SOURCE_CONTINUE; + } + + protected: + + /* convenience func to loop while waiting for a GObject's signal */ + void wait_for_signal(gpointer o, const gchar * signal, guint timeout_seconds=5) + { + // wait for the signal or for timeout, whichever comes first + const auto handler_id = g_signal_connect_swapped(o, signal, + G_CALLBACK(g_main_loop_quit), + loop); + const auto timeout_id = g_timeout_add_seconds(timeout_seconds, + wait_for_signal__timeout, + loop); + g_main_loop_run(loop); + g_source_remove(timeout_id); + g_signal_handler_disconnect(o, handler_id); + } + + /* convenience func to loop for N msec */ + void wait_msec(guint msec=50) + { + const auto id = g_timeout_add(msec, wait_msec__timeout, loop); + g_main_loop_run(loop); + g_source_remove(id); + } + + bool wait_for(std::function<bool()> test_function, guint timeout_msec=1000) + { + auto timer = std::shared_ptr<GTimer>(g_timer_new(), [](GTimer* t){g_timer_destroy(t);}); + const auto timeout_sec = timeout_msec / 1000.0; + for (;;) { + if (test_function()) + return true; + //g_message("%f ... %f", g_timer_elapsed(timer.get(), nullptr), timeout_sec); + if (g_timer_elapsed(timer.get(), nullptr) >= timeout_sec) + return false; + wait_msec(); + } + } + + bool wait_for_name_owned(GDBusConnection* connection, + const gchar* name, + guint timeout_msec=1000, + GBusNameWatcherFlags flags=G_BUS_NAME_WATCHER_FLAGS_AUTO_START) + { + struct Data { + GMainLoop* loop = nullptr; + bool owned = false; + }; + Data data; + + auto on_name_appeared = [](GDBusConnection* /*connection*/, + const gchar* /*name_*/, + const gchar* name_owner, + gpointer gdata) + { + if (name_owner == nullptr) + return; + auto tmp = static_cast<Data*>(gdata); + tmp->owned = true; + g_main_loop_quit(tmp->loop); + }; + + const auto timeout_id = g_timeout_add(timeout_msec, wait_msec__timeout, loop); + data.loop = loop; + const auto watch_id = g_bus_watch_name_on_connection(connection, + name, + flags, + on_name_appeared, + nullptr, /* name_vanished */ + &data, + nullptr); /* user_data_free_func */ + g_main_loop_run(loop); + + g_bus_unwatch_name(watch_id); + g_source_remove(timeout_id); + + return data.owned; + } + + void EXPECT_NAME_OWNED_EVENTUALLY(GDBusConnection* connection, + const gchar* name, + guint timeout_msec=1000, + GBusNameWatcherFlags flags=G_BUS_NAME_WATCHER_FLAGS_AUTO_START) + { + EXPECT_TRUE(wait_for_name_owned(connection, name, timeout_msec, flags)) << "name: " << name; + } + + void EXPECT_NAME_NOT_OWNED_EVENTUALLY(GDBusConnection* connection, + const gchar* name, + guint timeout_msec=1000, + GBusNameWatcherFlags flags=G_BUS_NAME_WATCHER_FLAGS_AUTO_START) + { + EXPECT_FALSE(wait_for_name_owned(connection, name, timeout_msec, flags)) << "name: " << name; + } + + void ASSERT_NAME_OWNED_EVENTUALLY(GDBusConnection* connection, + const gchar* name, + guint timeout_msec=1000, + GBusNameWatcherFlags flags=G_BUS_NAME_WATCHER_FLAGS_AUTO_START) + { + ASSERT_TRUE(wait_for_name_owned(connection, name, timeout_msec, flags)) << "name: " << name; + } + + void ASSERT_NAME_NOT_OWNED_EVENTUALLY(GDBusConnection* connection, + const gchar* name, + guint timeout_msec=1000, + GBusNameWatcherFlags flags=G_BUS_NAME_WATCHER_FLAGS_AUTO_START) + { + ASSERT_FALSE(wait_for_name_owned(connection, name, timeout_msec, flags)) << "name: " << name; + } + + GMainLoop * loop; +}; + |