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-rw-r--r--tests/glib-fixture.h141
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+/*
+ * Copyright 2014 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 <map>
+
+#include <glib.h>
+#include <glib/gstdio.h>
+#include <gio/gio.h>
+
+#include <gtest/gtest.h>
+
+#include <locale.h> // setlocale()
+
+class GlibFixture : public ::testing::Test
+{
+ private:
+
+ GLogFunc realLogHandler;
+
+ std::map<GLogLevelFlags,size_t> expected_log;
+ std::map<GLogLevelFlags,std::vector<std::string>> log;
+
+ void test_log_counts()
+ {
+ const GLogLevelFlags levels_to_test[] = { G_LOG_LEVEL_ERROR,
+ G_LOG_LEVEL_CRITICAL,
+ G_LOG_LEVEL_MESSAGE,
+ G_LOG_LEVEL_WARNING };
+
+ for(const auto& level : levels_to_test)
+ {
+ const auto& v = log[level];
+ const auto n = v.size();
+
+ EXPECT_EQ(expected_log[level], n);
+
+ if (expected_log[level] != n)
+ for (size_t i=0; i<n; ++i)
+ g_message("%d %s", (n+1), v[i].c_str());
+ }
+
+ expected_log.clear();
+ log.clear();
+ }
+
+ static void default_log_handler(const gchar * log_domain,
+ GLogLevelFlags log_level,
+ const gchar * message,
+ gpointer self)
+ {
+ auto tmp = g_strdup_printf ("%s:%d \"%s\"", log_domain, (int)log_level, message);
+ static_cast<GlibFixture*>(self)->log[log_level].push_back(tmp);
+ g_free(tmp);
+ }
+
+ protected:
+
+ void increment_expected_errors(GLogLevelFlags level, size_t n=1)
+ {
+ expected_log[level] += n;
+ }
+
+ virtual void SetUp()
+ {
+ setlocale(LC_ALL, "C.UTF-8");
+
+ loop = g_main_loop_new(nullptr, false);
+
+ g_log_set_default_handler(default_log_handler, this);
+
+ g_unsetenv("DISPLAY");
+ }
+
+ virtual void TearDown()
+ {
+ test_log_counts();
+
+ g_log_set_default_handler(realLogHandler, this);
+
+ g_clear_pointer(&loop, g_main_loop_unref);
+ }
+
+ private:
+
+ static gboolean
+ wait_for_signal__timeout(gpointer name)
+ {
+ g_error("%s: timed out waiting for signal '%s'", G_STRLOC, (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, const 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);
+ }
+
+ GMainLoop * loop;
+};