1 files changed, 119 insertions, 0 deletions
diff --git a/tests/glib-fixture.h b/tests/glib-fixture.h
new file mode 100644
index 0000000..4128033
--- /dev/null
+++ b/tests/glib-fixture.h
@@ -0,0 +1,119 @@
+/*
+ * 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/>.
+ */
+
+#include <map>
+
+#include <glib.h>
+#include <glib/gstdio.h>
+#include <gio/gio.h>
+
+#include <gtest/gtest.h>
+
+class GlibFixture : public ::testing::Test
+{
+  private:
+
+    GLogFunc realLogHandler;
+
+  protected:
+
+    std::map<GLogLevelFlags,int> logCounts;
+
+    void testLogCount (GLogLevelFlags log_level, int expected G_GNUC_UNUSED)
+    {
+      ASSERT_EQ (expected, logCounts[log_level]);
+
+      logCounts.erase (log_level);
+    }
+
+  private:
+
+    static void default_log_handler (const gchar    * log_domain G_GNUC_UNUSED,
+                                     GLogLevelFlags   log_level,
+                                     const gchar    * message    G_GNUC_UNUSED,
+                                     gpointer         self)
+    {
+      static_cast<GlibFixture*>(self)->logCounts[log_level]++;
+    }
+
+  protected:
+
+    virtual void SetUp ()
+    {
+      loop = g_main_loop_new (NULL, FALSE);
+
+      g_log_set_default_handler (default_log_handler, this);
+
+      // only use local, temporary settings
+      g_setenv ("GSETTINGS_SCHEMA_DIR", SCHEMA_DIR, TRUE);
+      g_setenv ("GSETTINGS_BACKEND", "memory", TRUE);
+      g_debug ("SCHEMA_DIR is %s", SCHEMA_DIR);
+    }
+
+    virtual void TearDown()
+    {
+      // confirm there aren't any unexpected log messages
+      ASSERT_EQ (0, logCounts[G_LOG_LEVEL_ERROR]);
+      ASSERT_EQ (0, logCounts[G_LOG_LEVEL_CRITICAL]);
+      ASSERT_EQ (0, logCounts[G_LOG_LEVEL_WARNING]);
+      ASSERT_EQ (0, logCounts[G_LOG_LEVEL_MESSAGE]);
+      ASSERT_EQ (0, logCounts[G_LOG_LEVEL_INFO]);
+
+      // revert to glib's log handler
+      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;
+    }
+
+  protected:
+
+    /* convenience func to loop while waiting for a GObject's signal */
+    void wait_for_signal (gpointer o, const gchar * signal, const int timeout_seconds=5)
+    {
+      // wait for the signal or for timeout, whichever comes first
+      guint handler_id = g_signal_connect_swapped (o, signal,
+                                                   G_CALLBACK(g_main_loop_quit),
+                                                   loop);
+      gulong 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 (int msec=50)
+    {
+      guint id = g_timeout_add (msec, (GSourceFunc)g_main_loop_quit, loop);
+      g_main_loop_run (loop);
+      g_source_remove (id);
+    }
+
+  GMainLoop * loop;
+};