[libpeas] Added peas_plugin_info_get_settings()

From: Garrett Regier <gregier src gnome org>
To: commits-list gnome org
Cc:
Subject: [libpeas] Added peas_plugin_info_get_settings()
Date: Fri, 10 Feb 2012 20:31:58 +0000 (UTC)
commit 9496c2aca6e37bcd93ea5a290b6cdb40847773fe
Author: Garrett Regier <garrettregier gmail com>
Date:   Thu Dec 8 18:51:08 2011 -0800

    Added peas_plugin_info_get_settings()

 .gitignore                                         |    3 +
 configure.ac                                       |    4 +
 libpeas/Makefile.am                                |    2 +-
 libpeas/peas-plugin-info-priv.h                    |    2 +
 libpeas/peas-plugin-info.c                         |   75 +++++++++++++++++
 libpeas/peas-plugin-info.h                         |    4 +-
 tests/libpeas/extension-c.c                        |   25 +-----
 tests/libpeas/extension-gjs.c                      |   32 --------
 tests/libpeas/extension-python.c                   |   27 +------
 tests/libpeas/extension-seed.c                     |   32 --------
 tests/libpeas/extension-set.c                      |    8 +-
 tests/libpeas/introspection/Makefile.am            |   33 ++++----
 tests/libpeas/introspection/introspection-base.c   |   71 ++++++++++++++++
 tests/libpeas/introspection/introspection-base.h   |   59 ++++++++++++++
 .../libpeas/introspection/introspection-callable.c |    4 +
 .../introspection/introspection-has-prerequisite.c |    4 +-
 .../libpeas/plugins/extension-c/callable-plugin.c  |   85 ++++----------------
 .../libpeas/plugins/extension-c/callable-plugin.h  |    9 +--
 .../plugins/extension-c/extension-c-plugin.c       |    3 +-
 .../plugins/extension-c/extension-c.gschema.xml    |    9 ++
 tests/libpeas/plugins/extension-js/Makefile.am     |   17 +++-
 .../plugins/extension-js/extension-js.gschema.xml  |    9 ++
 tests/libpeas/plugins/extension-js/extension-js.js |   39 ++++++----
 .../extension-python/extension-python.gschema.xml  |    9 ++
 .../plugins/extension-python/extension-python.py   |   33 ++++----
 tests/libpeas/testing/testing-extension.c          |   61 ++++++++++++--
 tests/plugins/loadable/loadable-plugin.h           |    5 +-
 27 files changed, 408 insertions(+), 256 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index 47ad3a5..f5a7293 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,7 @@
 *.gcov
 .deps
 .libs
+gschemas.compiled
 Makefile
 Makefile.in
 /ABOUT-NLS
@@ -79,8 +80,10 @@ Makefile.in
 /tests/libpeas/extension-seed
 /tests/libpeas/extension-set
 /tests/libpeas/plugin-info
+/tests/libpeas/plugins/extension-js/extension-gjs.gschema.xml
 /tests/libpeas/plugins/extension-js/extension-gjs.js
 /tests/libpeas/plugins/extension-js/extension-gjs.plugin
+/tests/libpeas/plugins/extension-js/extension-seed.gschema.xml
 /tests/libpeas/plugins/extension-js/extension-seed.js
 /tests/libpeas/plugins/extension-js/extension-seed.plugin
 /tests/libpeas-gtk/plugin-manager
diff --git a/configure.ac b/configure.ac
index fedaaba..56eb2d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -85,12 +85,14 @@ dnl ================================================================
 PKG_PROG_PKG_CONFIG
 
 GLIB_REQUIRED=2.28.0
+GIO_REQUIRED=2.31.2
 INTROSPECTION_REQUIRED=0.10.1
 
 PKG_CHECK_MODULES(PEAS, [
 	glib-2.0 >= $GLIB_REQUIRED
 	gobject-2.0 >= $GLIB_REQUIRED
 	gmodule-2.0 >= $GLIB_REQUIRED
+	gio-2.0 >= $GIO_REQUIRED
 	gobject-introspection-1.0 >= $INTROSPECTION_REQUIRED
 ])
 
@@ -437,9 +439,11 @@ AC_SUBST(LT_AGE)
 
 PLUGIN_LIBTOOL_FLAGS="-module -avoid-version"
 TEST_PLUGIN_LIBTOOL_FLAGS="$PLUGIN_LIBTOOL_FLAGS -rpath /nowhere"
+TEST_INTROSPECTION_LIBTOOL_FLAGS="-rpath /nowhere -export-dynamic -no-undefined"
 LOADER_LIBTOOL_FLAGS="-module -avoid-version -export-symbols-regex peas_register_types"
 AC_SUBST(PLUGIN_LIBTOOL_FLAGS)
 AC_SUBST(TEST_PLUGIN_LIBTOOL_FLAGS)
+AC_SUBST(TEST_INTROSPECTION_LIBTOOL_FLAGS)
 AC_SUBST(LOADER_LIBTOOL_FLAGS)
 
 dnl ================================================================
diff --git a/libpeas/Makefile.am b/libpeas/Makefile.am
index 101fdb5..3bc5159 100644
--- a/libpeas/Makefile.am
+++ b/libpeas/Makefile.am
@@ -94,7 +94,7 @@ if HAVE_INTROSPECTION
   introspection_sources = $(INST_H_FILES) $(C_FILES)
 
   Peas-1.0.gir: libpeas-1.0.la
-  Peas_1_0_gir_INCLUDES = GObject-2.0 GModule-2.0 GIRepository-2.0
+  Peas_1_0_gir_INCLUDES = GObject-2.0 GModule-2.0 Gio-2.0 GIRepository-2.0
   Peas_1_0_gir_CFLAGS = $(PEAS_CFLAGS)
   Peas_1_0_gir_LIBS = libpeas-1.0.la
   Peas_1_0_gir_FILES = $(addprefix $(srcdir)/,$(introspection_sources))
diff --git a/libpeas/peas-plugin-info-priv.h b/libpeas/peas-plugin-info-priv.h
index 304f3ec..12a08ef 100644
--- a/libpeas/peas-plugin-info-priv.h
+++ b/libpeas/peas-plugin-info-priv.h
@@ -32,6 +32,8 @@ struct _PeasPluginInfo {
   gchar *module_dir;
   gchar *data_dir;
 
+  GSettingsSchemaSource *schema_source;
+
   gchar *module_name;
   gchar *loader;
   gchar **dependencies;
diff --git a/libpeas/peas-plugin-info.c b/libpeas/peas-plugin-info.c
index 1eef90a..a71fd22 100644
--- a/libpeas/peas-plugin-info.c
+++ b/libpeas/peas-plugin-info.c
@@ -79,6 +79,8 @@ _peas_plugin_info_unref (PeasPluginInfo *info)
 
   g_free (info->module_dir);
   g_free (info->data_dir);
+  if (info->schema_source != NULL)
+    g_settings_schema_source_unref (info->schema_source);
   g_free (info->module_name);
   g_strfreev (info->dependencies);
   g_free (info->name);
@@ -427,6 +429,79 @@ peas_plugin_info_get_data_dir (const PeasPluginInfo *info)
 }
 
 /**
+ * peas_plugin_info_get_settings:
+ * @info: A #PeasPluginInfo.
+ * @schema_id: (allow-none): The schema id.
+ *
+ * Creates a new #GSettings for the given @schema_id and if
+ * gschemas.compiled is not in the module directory an attempt
+ * will be made to create it.
+ *
+ * Returns: (transfer full): a new #GSettings, or %NULL.
+ */
+GSettings *
+peas_plugin_info_get_settings (const PeasPluginInfo *info,
+                               const gchar          *schema_id)
+{
+  GSettingsSchema *schema;
+  GSettings *settings;
+
+  g_return_val_if_fail (info != NULL, NULL);
+
+  if (info->schema_source == NULL)
+    {
+      GFile *module_dir_location;
+      GFile *gschema_compiled;
+      GSettingsSchemaSource *default_source;
+
+      module_dir_location = g_file_new_for_path (info->module_dir);
+      gschema_compiled = g_file_get_child (module_dir_location,
+                                           "gschemas.compiled");
+
+      if (!g_file_query_exists (gschema_compiled, NULL))
+        {
+          const gchar *argv[] = {
+            "glib-compile-schemas",
+            "--targetdir", info->module_dir,
+            info->module_dir,
+            NULL
+          };
+
+          g_spawn_sync (NULL, (gchar **) argv, NULL, G_SPAWN_SEARCH_PATH,
+                        NULL, NULL, NULL, NULL, NULL, NULL);
+        }
+
+      g_object_unref (gschema_compiled);
+      g_object_unref (module_dir_location);
+
+      default_source = g_settings_schema_source_get_default ();
+      ((PeasPluginInfo *) info)->schema_source =
+            g_settings_schema_source_new_from_directory (info->module_dir,
+                                                         default_source,
+                                                         FALSE, NULL);
+
+      /* glib-compile-schemas already outputted a message */
+      if (info->schema_source == NULL)
+        return NULL;
+    }
+
+  if (schema_id == NULL)
+    schema_id = info->module_name;
+
+  schema = g_settings_schema_source_lookup (info->schema_source, schema_id,
+                                            FALSE);
+
+  if (schema == NULL)
+    return NULL;
+
+  settings = g_settings_new_full (schema, NULL, NULL);
+
+  g_settings_schema_unref (schema);
+
+  return settings;
+}
+
+/**
  * peas_plugin_info_get_dependencies:
  * @info: A #PeasPluginInfo.
  *
diff --git a/libpeas/peas-plugin-info.h b/libpeas/peas-plugin-info.h
index 3d95a32..8cb7da6 100644
--- a/libpeas/peas-plugin-info.h
+++ b/libpeas/peas-plugin-info.h
@@ -23,7 +23,7 @@
 #ifndef __PEAS_PLUGIN_INFO_H__
 #define __PEAS_PLUGIN_INFO_H__
 
-#include <glib-object.h>
+#include <gio/gio.h>
 
 G_BEGIN_DECLS
 
@@ -80,6 +80,8 @@ gboolean      peas_plugin_info_is_hidden        (const PeasPluginInfo *info);
 const gchar  *peas_plugin_info_get_module_name  (const PeasPluginInfo *info);
 const gchar  *peas_plugin_info_get_module_dir   (const PeasPluginInfo *info);
 const gchar  *peas_plugin_info_get_data_dir     (const PeasPluginInfo *info);
+GSettings    *peas_plugin_info_get_settings     (const PeasPluginInfo *info,
+                                                 const gchar          *schema_id);
 const gchar **peas_plugin_info_get_dependencies (const PeasPluginInfo *info);
 gboolean      peas_plugin_info_has_dependency   (const PeasPluginInfo *info,
                                                  const gchar          *module_name);
diff --git a/tests/libpeas/extension-c.c b/tests/libpeas/extension-c.c
index 8ea9f9a..43d4687 100644
--- a/tests/libpeas/extension-c.c
+++ b/tests/libpeas/extension-c.c
@@ -26,7 +26,7 @@
 #include "libpeas/peas.h"
 
 #include "testing/testing-extension.h"
-#include "introspection/introspection-callable.h"
+#include "introspection/introspection-base.h"
 
 static void
 test_extension_c_instance_refcount (PeasEngine     *engine,
@@ -35,7 +35,7 @@ test_extension_c_instance_refcount (PeasEngine     *engine,
   PeasExtension *extension;
 
   extension = peas_engine_create_extension (engine, info,
-                                            INTROSPECTION_TYPE_CALLABLE,
+                                            INTROSPECTION_TYPE_BASE,
                                             NULL);
 
   g_assert (PEAS_IS_EXTENSION (extension));
@@ -49,26 +49,6 @@ test_extension_c_instance_refcount (PeasEngine     *engine,
 }
 
 static void
-test_extension_c_plugin_info (PeasEngine *engine)
-{
-  PeasPluginInfo *info;
-  PeasExtension *extension;
-
-  info = peas_engine_get_plugin_info (engine, "loadable");
-
-  g_assert (peas_engine_load_plugin (engine, info));
-
-  extension = peas_engine_create_extension (engine, info,
-                                            PEAS_TYPE_ACTIVATABLE,
-                                            NULL);
-
-  g_assert (PEAS_IS_EXTENSION_BASE (extension));
-  g_assert (peas_extension_base_get_plugin_info (PEAS_EXTENSION_BASE (extension)) == info);
-
-  g_object_unref (extension);
-}
-
-static void
 test_extension_c_nonexistent (PeasEngine *engine)
 {
   PeasPluginInfo *info;
@@ -98,7 +78,6 @@ main (int   argc,
   testing_extension_callable ("c");
 
   EXTENSION_TEST (c, "instance-refcount", instance_refcount);
-  EXTENSION_TEST (c, "plugin-info", plugin_info);
   EXTENSION_TEST (c, "nonexistent", nonexistent);
 
   return testing_extension_run_tests ();
diff --git a/tests/libpeas/extension-gjs.c b/tests/libpeas/extension-gjs.c
index e57764d..3004943 100644
--- a/tests/libpeas/extension-gjs.c
+++ b/tests/libpeas/extension-gjs.c
@@ -28,37 +28,6 @@
 #include "loaders/gjs/peas-extension-gjs.h"
 
 #include "testing/testing-extension.h"
-#include "introspection/introspection-callable.h"
-
-static void
-test_extension_gjs_plugin_info (PeasEngine     *engine,
-                                PeasPluginInfo *info)
-{
-  PeasExtension *extension;
-  PeasExtensionGjs *gexten;
-  jsval js_value;
-  GValue gvalue = { 0 };
-
-  extension = peas_engine_create_extension (engine, info,
-                                            INTROSPECTION_TYPE_CALLABLE,
-                                            NULL);
-
-  g_assert (PEAS_IS_EXTENSION (extension));
-
-  gexten = (PeasExtensionGjs *) extension;
-
-  g_value_init (&gvalue, PEAS_TYPE_PLUGIN_INFO);
-
-  g_assert (JS_GetProperty (gexten->js_context, gexten->js_object,
-                            "plugin_info", &js_value));
-  g_assert (gjs_value_to_g_value (gexten->js_context, js_value, &gvalue));
-
-  g_assert (g_value_get_boxed (&gvalue) == info);
-
-  g_value_unset (&gvalue);
-
-  g_object_unref (extension);
-}
 
 static void
 test_extension_gjs_nonexistent (PeasEngine *engine)
@@ -83,7 +52,6 @@ main (int   argc,
 
   testing_extension_all ("gjs");
 
-  EXTENSION_TEST (gjs, "plugin-info", plugin_info);
   EXTENSION_TEST (gjs, "nonexistent", nonexistent);
 
   return testing_extension_run_tests ();
diff --git a/tests/libpeas/extension-python.c b/tests/libpeas/extension-python.c
index 0b577ad..7f10436 100644
--- a/tests/libpeas/extension-python.c
+++ b/tests/libpeas/extension-python.c
@@ -29,7 +29,7 @@
 #include "loaders/python/peas-extension-python.h"
 
 #include "testing/testing-extension.h"
-#include "introspection/introspection-callable.h"
+#include "introspection/introspection-base.h"
 
 static void
 test_extension_python_instance_refcount (PeasEngine     *engine,
@@ -39,7 +39,7 @@ test_extension_python_instance_refcount (PeasEngine     *engine,
   PyObject *instance;
 
   extension = peas_engine_create_extension (engine, info,
-                                            INTROSPECTION_TYPE_CALLABLE,
+                                            INTROSPECTION_TYPE_BASE,
                                             NULL);
 
   g_assert (PEAS_IS_EXTENSION (extension));
@@ -96,28 +96,6 @@ test_extension_python_activatable_subject_refcount (PeasEngine     *engine,
 }
 
 static void
-test_extension_python_plugin_info (PeasEngine *engine,
-                                   PeasPluginInfo *info)
-{
-  PeasExtension *extension;
-  PyObject *instance;
-  PyObject *plugin_info;
-
-  extension = peas_engine_create_extension (engine, info,
-                                            INTROSPECTION_TYPE_CALLABLE,
-                                            NULL);
-
-  g_assert (PEAS_IS_EXTENSION (extension));
-
-  instance = ((PeasExtensionPython *) extension)->instance;
-
-  plugin_info = PyObject_GetAttrString (instance, "plugin_info");
-  g_assert (((PyGBoxed *) plugin_info)->boxed == info);
-
-  g_object_unref (extension);
-}
-
-static void
 test_extension_python_nonexistent (PeasEngine *engine)
 {
   PeasPluginInfo *info;
@@ -140,7 +118,6 @@ main (int   argc,
 
   EXTENSION_TEST (python, "instance-refcount", instance_refcount);
   EXTENSION_TEST (python, "activatable-subject-refcount", activatable_subject_refcount);
-  EXTENSION_TEST (python, "plugin-info", plugin_info);
   EXTENSION_TEST (python, "nonexistent", nonexistent);
 
   return testing_extension_run_tests ();
diff --git a/tests/libpeas/extension-seed.c b/tests/libpeas/extension-seed.c
index ceff7eb..cd31750 100644
--- a/tests/libpeas/extension-seed.c
+++ b/tests/libpeas/extension-seed.c
@@ -28,37 +28,6 @@
 #include "loaders/seed/peas-extension-seed.h"
 
 #include "testing/testing-extension.h"
-#include "introspection/introspection-callable.h"
-
-static void
-test_extension_seed_plugin_info (PeasEngine *engine,
-                                 PeasPluginInfo *info)
-{
-  PeasExtension *extension;
-  PeasExtensionSeed *sexten;
-  SeedValue seed_value;
-  GValue gvalue = { 0 };
-
-  extension = peas_engine_create_extension (engine, info,
-                                            INTROSPECTION_TYPE_CALLABLE,
-                                            NULL);
-
-  g_assert (PEAS_IS_EXTENSION (extension));
-
-  sexten = (PeasExtensionSeed *) extension;
-  seed_value = seed_object_get_property (sexten->js_context, sexten->js_object,
-                                         "plugin_info");
-
-  g_assert (seed_value_to_gvalue (sexten->js_context, seed_value,
-                                  PEAS_TYPE_PLUGIN_INFO, &gvalue,
-                                  NULL));
-
-  g_assert (g_value_get_boxed (&gvalue) == info);
-
-  g_value_unset (&gvalue);
-
-  g_object_unref (extension);
-}
 
 static void
 test_extension_seed_nonexistent (PeasEngine *engine)
@@ -83,7 +52,6 @@ main (int   argc,
 
   testing_extension_all ("seed");
 
-  EXTENSION_TEST (seed, "plugin-info", plugin_info);
   EXTENSION_TEST (seed, "nonexistent", nonexistent);
 
   return testing_extension_run_tests ();
diff --git a/tests/libpeas/extension-set.c b/tests/libpeas/extension-set.c
index 64c5efc..073e04a 100644
--- a/tests/libpeas/extension-set.c
+++ b/tests/libpeas/extension-set.c
@@ -158,9 +158,9 @@ test_extension_set_activate (PeasEngine *engine)
       g_assert (peas_engine_load_plugin (engine, info));
     }
 
-  /* Load a plugin that does not provide a PeasActivatable
+  /* Load a plugin that does not provide a PeasActivatable */
   info = peas_engine_get_plugin_info (engine, "extension-c");
-  g_assert (peas_engine_load_plugin (engine, info)); */
+  g_assert (peas_engine_load_plugin (engine, info));
 
   g_assert_cmpint (active, ==, G_N_ELEMENTS (loadable_plugins));
 
@@ -185,9 +185,9 @@ test_extension_set_deactivate (PeasEngine *engine)
 
   test_extension_set_activate (engine);
 
-  /* Unload the plugin that does not provide a PeasActivatable
+  /* Unload the plugin that does not provide a PeasActivatable */
   info = peas_engine_get_plugin_info (engine, "extension-c");
-  g_assert (peas_engine_unload_plugin (engine, info)); */
+  g_assert (peas_engine_unload_plugin (engine, info));
 
   /* To keep deps in order */
   for (i = G_N_ELEMENTS (loadable_plugins); i > 0; --i)
diff --git a/tests/libpeas/introspection/Makefile.am b/tests/libpeas/introspection/Makefile.am
index 1907573..1d522d3 100644
--- a/tests/libpeas/introspection/Makefile.am
+++ b/tests/libpeas/introspection/Makefile.am
@@ -1,20 +1,20 @@
 noinst_LTLIBRARIES = libintrospection-1.0.la
 
-INTROSPECTION_INCLUDES = \
-	-I$(top_srcdir)	\
-	-I$(srcdir)	\
-	$(PEAS_CFLAGS)
-
 INCLUDES = \
+	-I$(top_srcdir)		\
+	-I$(srcdir)		\
+	$(PEAS_CFLAGS)		\
 	$(WARN_CFLAGS)		\
 	$(DISABLE_DEPRECATED)
 
-libintrospection_1_0_la_LDFLAGS = \
-	-export-dynamic -no-undefined -export-symbols-regex "^[^_].*"
-
-libintrospection_1_0_la_LIBADD = $(PEAS_LIBS)
+libintrospection_1_0_la_LDFLAGS = $(TEST_INTROSPECTION_LIBTOOL_FLAGS)
+libintrospection_1_0_la_LIBADD = \
+	$(PEAS_LIBS)				\
+	$(top_builddir)/libpeas/libpeas-1.0.la
 
 libintrospection_1_0_la_SOURCES = \
+	introspection-base.c				\
+	introspection-base.h				\
 	introspection-callable.c			\
 	introspection-callable.h			\
 	introspection-has-missing-prerequisite.c	\
@@ -26,21 +26,24 @@ libintrospection_1_0_la_SOURCES = \
 	introspection-unimplemented.c			\
 	introspection-unimplemented.h
 
-INCLUDES += $(INTROSPECTION_INCLUDES)
-
-
 -include $(INTROSPECTION_MAKEFILE)
 INTROSPECTION_GIRS = Introspection-1.0.gir
 INTROSPECTION_TYPELIBS = $(INTROSPECTION_GIRS:.gir=.typelib)
-INTROSPECTION_SCANNER_ARGS = --warn-all
+INTROSPECTION_SCANNER_ARGS = \
+	--add-include-path=$(top_builddir)/libpeas	\
+	--warn-all
+INTROSPECTION_COMPILER_ARGS = \
+	--includedir=$(top_srcdir)/libpeas	\
+	--includedir=$(top_builddir)/libpeas
 
 introspection_sources = $(libintrospection_1_0_la_SOURCES)
 
 Introspection-1.0.gir: libintrospection-1.0.la
 Introspection_1_0_gir_INCLUDES = GObject-2.0
-Introspection_1_0_gir_CFLAGS = $(INTROSPECTION_INCLUDES)
-Introspection_1_0_gir_LIBS = libintrospection-1.0.la
+Introspection_1_0_gir_CFLAGS = $(PEAS_CFLAGS) -I$(top_srcdir)
+Introspection_1_0_gir_LIBS = $(top_builddir)/libpeas/libpeas-1.0.la libintrospection-1.0.la
 Introspection_1_0_gir_FILES = $(addprefix $(srcdir)/,$(introspection_sources))
+Introspection_1_0_gir_SCANNERFLAGS = --include-uninstalled=$(top_builddir)/libpeas/Peas-1.0.gir
 
 CLEANFILES = $(INTROSPECTION_GIRS) $(INTROSPECTION_TYPELIBS)
 
diff --git a/tests/libpeas/introspection/introspection-base.c b/tests/libpeas/introspection/introspection-base.c
new file mode 100644
index 0000000..f502969
--- /dev/null
+++ b/tests/libpeas/introspection/introspection-base.c
@@ -0,0 +1,71 @@
+/*
+ * introspection-base.h
+ * This file is part of libpeas
+ *
+ * Copyright (C) 2011 - Garrett Regier
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Library General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "introspection-base.h"
+
+G_DEFINE_INTERFACE(IntrospectionBase, introspection_base, G_TYPE_OBJECT)
+
+void
+introspection_base_default_init (IntrospectionBaseInterface *iface)
+{
+}
+
+/**
+ * introspection_base_get_plugin_info:
+ * @base:
+ *
+ * Returns: (transfer none):
+ */
+const PeasPluginInfo *
+introspection_base_get_plugin_info (IntrospectionBase *base)
+{
+  IntrospectionBaseInterface *iface;
+
+  g_return_val_if_fail (INTROSPECTION_IS_BASE (base), NULL);
+
+  iface = INTROSPECTION_BASE_GET_IFACE (base);
+  g_assert (iface->get_plugin_info != NULL);
+
+  return iface->get_plugin_info (base);
+}
+
+/**
+ * introspection_base_get_settings:
+ * @base:
+ *
+ * Returns: (transfer full):
+ */
+GSettings *
+introspection_base_get_settings (IntrospectionBase *base)
+{
+  IntrospectionBaseInterface *iface;
+
+  g_return_val_if_fail (INTROSPECTION_IS_BASE (base), NULL);
+
+  iface = INTROSPECTION_BASE_GET_IFACE (base);
+  g_assert (iface->get_settings != NULL);
+
+  return iface->get_settings (base);
+}
diff --git a/tests/libpeas/introspection/introspection-base.h b/tests/libpeas/introspection/introspection-base.h
new file mode 100644
index 0000000..24d57d2
--- /dev/null
+++ b/tests/libpeas/introspection/introspection-base.h
@@ -0,0 +1,59 @@
+/*
+ * introspection-base.h
+ * This file is part of libpeas
+ *
+ * Copyright (C) 2011 - Garrett Regier
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Library General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __INTROSPECTION_BASE_H__
+#define __INTROSPECTION_BASE_H__
+
+#include <libpeas/peas.h>
+
+G_BEGIN_DECLS
+
+/*
+ * Type checking and casting macros
+ */
+#define INTROSPECTION_TYPE_BASE             (introspection_base_get_type ())
+#define INTROSPECTION_BASE(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), INTROSPECTION_TYPE_BASE, IntrospectionBase))
+#define INTROSPECTION_BASE_IFACE(obj)       (G_TYPE_CHECK_CLASS_CAST ((obj), INTROSPECTION_TYPE_BASE, IntrospectionBaseInterface))
+#define INTROSPECTION_IS_BASE(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), INTROSPECTION_TYPE_BASE))
+#define INTROSPECTION_BASE_GET_IFACE(obj)   (G_TYPE_INSTANCE_GET_INTERFACE ((obj), INTROSPECTION_TYPE_BASE, IntrospectionBaseInterface))
+
+typedef struct _IntrospectionBase           IntrospectionBase; /* dummy typedef */
+typedef struct _IntrospectionBaseInterface  IntrospectionBaseInterface;
+
+struct _IntrospectionBaseInterface {
+  GTypeInterface g_iface;
+
+  /* Virtual public methods */
+  const PeasPluginInfo *(*get_plugin_info) (IntrospectionBase *base);
+  GSettings            *(*get_settings)    (IntrospectionBase *base);
+};
+
+/*
+ * Public methods
+ */
+GType      introspection_base_get_type     (void) G_GNUC_CONST;
+
+const PeasPluginInfo *introspection_base_get_plugin_info (IntrospectionBase *base);
+GSettings            *introspection_base_get_settings    (IntrospectionBase *base);
+
+G_END_DECLS
+
+#endif /* __INTROSPECTION_BASE_H__ */
diff --git a/tests/libpeas/introspection/introspection-callable.c b/tests/libpeas/introspection/introspection-callable.c
index fb5d513..a411480 100644
--- a/tests/libpeas/introspection/introspection-callable.c
+++ b/tests/libpeas/introspection/introspection-callable.c
@@ -52,6 +52,10 @@ introspection_callable_call_with_return (IntrospectionCallable *callable)
   return NULL;
 }
 
+/**
+ * introspection_callable_call_no_args:
+ * @callable:
+ */
 void
 introspection_callable_call_no_args (IntrospectionCallable *callable)
 {
diff --git a/tests/libpeas/introspection/introspection-has-prerequisite.c b/tests/libpeas/introspection/introspection-has-prerequisite.c
index 625be31..d6c6b64 100644
--- a/tests/libpeas/introspection/introspection-has-prerequisite.c
+++ b/tests/libpeas/introspection/introspection-has-prerequisite.c
@@ -25,11 +25,11 @@
 
 #include "introspection-has-prerequisite.h"
 
-#include "introspection-callable.h"
+#include "introspection-base.h"
 
 G_DEFINE_INTERFACE(IntrospectionHasPrerequisite,
                    introspection_has_prerequisite,
-                   INTROSPECTION_TYPE_CALLABLE)
+                   INTROSPECTION_TYPE_BASE)
 
 void
 introspection_has_prerequisite_default_init (IntrospectionHasPrerequisiteInterface *iface)
diff --git a/tests/libpeas/plugins/extension-c/callable-plugin.c b/tests/libpeas/plugins/extension-c/callable-plugin.c
index b52ab37..b8b1366 100644
--- a/tests/libpeas/plugins/extension-c/callable-plugin.c
+++ b/tests/libpeas/plugins/extension-c/callable-plugin.c
@@ -29,89 +29,46 @@
 
 #include <libpeas/peas.h>
 
+#include "introspection-base.h"
 #include "introspection-callable.h"
 #include "introspection-has-prerequisite.h"
 
 #include "callable-plugin.h"
 
-struct _TestingCallablePluginPrivate {
-  GObject *object;
-};
-
-static void introspection_activatable_iface_init (PeasActivatableInterface *iface);
+static void introspection_base_iface_init (IntrospectionBaseInterface *iface);
 static void introspection_callable_iface_init (IntrospectionCallableInterface *iface);
 static void introspection_has_prerequisite_iface_init (IntrospectionHasPrerequisiteInterface *iface);
 
 G_DEFINE_DYNAMIC_TYPE_EXTENDED (TestingCallablePlugin,
                                 testing_callable_plugin,
-                                G_TYPE_OBJECT,
+                                PEAS_TYPE_EXTENSION_BASE,
                                 0,
-                                G_IMPLEMENT_INTERFACE_DYNAMIC (PEAS_TYPE_ACTIVATABLE,
-                                                               introspection_activatable_iface_init)
+                                G_IMPLEMENT_INTERFACE_DYNAMIC (INTROSPECTION_TYPE_BASE,
+                                                               introspection_base_iface_init)
                                 G_IMPLEMENT_INTERFACE_DYNAMIC (INTROSPECTION_TYPE_CALLABLE,
                                                                introspection_callable_iface_init)
                                 G_IMPLEMENT_INTERFACE_DYNAMIC (INTROSPECTION_TYPE_HAS_PREREQUISITE,
                                                                introspection_has_prerequisite_iface_init))
 
-enum {
-  PROP_0,
-  PROP_OBJECT
-};
-
 static void
-testing_callable_plugin_set_property (GObject      *object,
-                                      guint         prop_id,
-                                      const GValue *value,
-                                      GParamSpec   *pspec)
+testing_callable_plugin_init (TestingCallablePlugin *plugin)
 {
-  TestingCallablePlugin *plugin = TESTING_CALLABLE_PLUGIN (object);
-
-  switch (prop_id)
-    {
-    case PROP_OBJECT:
-      plugin->priv->object = g_value_get_object (value);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
 }
 
-static void
-testing_callable_plugin_get_property (GObject    *object,
-                                      guint       prop_id,
-                                      GValue     *value,
-                                      GParamSpec *pspec)
+static const PeasPluginInfo *
+testing_callable_plugin_get_plugin_info (IntrospectionBase *base)
 {
-  TestingCallablePlugin *plugin = TESTING_CALLABLE_PLUGIN (object);
-
-  switch (prop_id)
-    {
-    case PROP_OBJECT:
-      g_value_set_object (value, plugin->priv->object);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
+  return peas_extension_base_get_plugin_info (PEAS_EXTENSION_BASE (base));
 }
 
-static void
-testing_callable_plugin_init (TestingCallablePlugin *plugin)
+static GSettings *
+testing_callable_plugin_get_settings (IntrospectionBase *base)
 {
-  plugin->priv = G_TYPE_INSTANCE_GET_PRIVATE (plugin,
-                                              TESTING_TYPE_CALLABLE_PLUGIN,
-                                              TestingCallablePluginPrivate);
-}
+  PeasPluginInfo *info;
 
-static void
-testing_callable_plugin_activate (PeasActivatable *activatable)
-{
-}
+  info = peas_extension_base_get_plugin_info (PEAS_EXTENSION_BASE (base));
 
-static void
-testing_callable_plugin_deactivate (PeasActivatable *activatable)
-{
+  return peas_plugin_info_get_settings (info, NULL);
 }
 
 static const gchar *
@@ -140,21 +97,13 @@ testing_callable_plugin_call_multi_args (IntrospectionCallable *callable,
 static void
 testing_callable_plugin_class_init (TestingCallablePluginClass *klass)
 {
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
-  object_class->set_property = testing_callable_plugin_set_property;
-  object_class->get_property = testing_callable_plugin_get_property;
-
-  g_object_class_override_property (object_class, PROP_OBJECT, "object");
-
-  g_type_class_add_private (klass, sizeof (TestingCallablePluginPrivate));
 }
 
 static void
-introspection_activatable_iface_init (PeasActivatableInterface *iface)
+introspection_base_iface_init (IntrospectionBaseInterface *iface)
 {
-  iface->activate = testing_callable_plugin_activate;
-  iface->deactivate = testing_callable_plugin_deactivate;
+  iface->get_plugin_info = testing_callable_plugin_get_plugin_info;
+  iface->get_settings = testing_callable_plugin_get_settings;
 }
 
 static void
diff --git a/tests/libpeas/plugins/extension-c/callable-plugin.h b/tests/libpeas/plugins/extension-c/callable-plugin.h
index e48b250..74df477 100644
--- a/tests/libpeas/plugins/extension-c/callable-plugin.h
+++ b/tests/libpeas/plugins/extension-c/callable-plugin.h
@@ -38,16 +38,11 @@ typedef struct _TestingCallablePluginClass    TestingCallablePluginClass;
 typedef struct _TestingCallablePluginPrivate  TestingCallablePluginPrivate;
 
 struct _TestingCallablePlugin {
-  /* Inherit from GObject and not PeasExtensionBase
-   * to check that it is possible
-   */
-  GObject parent_instance;
-
-  TestingCallablePluginPrivate *priv;
+  PeasExtensionBase parent_instance;
 };
 
 struct _TestingCallablePluginClass {
-  GObjectClass parent_class;
+  PeasExtensionBaseClass parent_class;
 };
 
 GType testing_callable_plugin_get_type (void) G_GNUC_CONST;
diff --git a/tests/libpeas/plugins/extension-c/extension-c-plugin.c b/tests/libpeas/plugins/extension-c/extension-c-plugin.c
index 84f85de..321eed0 100644
--- a/tests/libpeas/plugins/extension-c/extension-c-plugin.c
+++ b/tests/libpeas/plugins/extension-c/extension-c-plugin.c
@@ -25,6 +25,7 @@
 
 #include "extension-c-plugin.h"
 
+#include "introspection-base.h"
 #include "introspection-callable.h"
 #include "introspection-has-prerequisite.h"
 
@@ -36,7 +37,7 @@ peas_register_types (PeasObjectModule *module)
   testing_callable_plugin_register (G_TYPE_MODULE (module));
 
   peas_object_module_register_extension_type (module,
-                                              PEAS_TYPE_ACTIVATABLE,
+                                              INTROSPECTION_TYPE_BASE,
                                               TESTING_TYPE_CALLABLE_PLUGIN);
   peas_object_module_register_extension_type (module,
                                               INTROSPECTION_TYPE_CALLABLE,
diff --git a/tests/libpeas/plugins/extension-c/extension-c.gschema.xml b/tests/libpeas/plugins/extension-c/extension-c.gschema.xml
new file mode 100644
index 0000000..0bf761a
--- /dev/null
+++ b/tests/libpeas/plugins/extension-c/extension-c.gschema.xml
@@ -0,0 +1,9 @@
+<schemalist>
+  <schema id="extension-c" path="/org/gnome/libpeas/tests/extension-c/">
+    <key name="a-setting" type="s">
+      <default>'Blah'</default>
+      <summary>Just a setting.</summary>
+      <description>Just a setting.</description>
+    </key>
+  </schema>
+</schemalist>
diff --git a/tests/libpeas/plugins/extension-js/Makefile.am b/tests/libpeas/plugins/extension-js/Makefile.am
index cab7122..24d6dee 100644
--- a/tests/libpeas/plugins/extension-js/Makefile.am
+++ b/tests/libpeas/plugins/extension-js/Makefile.am
@@ -1,21 +1,28 @@
 noinst_DATA = \
-	extension-gjs.js	\
-	extension-gjs.plugin	\
-	extension-seed.js	\
+	extension-gjs.gschema.xml	\
+	extension-gjs.js		\
+	extension-gjs.plugin		\
+	extension-seed.gschema.xml	\
+	extension-seed.js		\
 	extension-seed.plugin
 
 extension-js.%:
 	test -e $@
 
+%.gschema.xml: extension-js.gschema.xml
+	$(AM_V_GEN) cp $< $@ && \
+	$(SED) -i -e 's/JS_LOADER/$(@:extension-%.gschema.xml=%)/g' $@
+
 %.js: extension-js.js
 	$(AM_V_GEN) $(LN_S) $< $@
 
 %.plugin: extension-js.plugin
 	$(AM_V_GEN) cp $< $@ && \
-	$(SED) -i -e 's/JS_LOADER/$(@:extension-%.plugin=%)/' $@
+	$(SED) -i -e 's/JS_LOADER/$(@:extension-%.plugin=%)/g' $@
 
 EXTRA_DIST = \
-	extension-js.js 	\
+	extension-js.gschema.xml	\
+	extension-js.js 		\
 	extension-js.plugin
 
 CLEANFILES = $(noinst_DATA)
diff --git a/tests/libpeas/plugins/extension-js/extension-js.gschema.xml b/tests/libpeas/plugins/extension-js/extension-js.gschema.xml
new file mode 100644
index 0000000..043a6ee
--- /dev/null
+++ b/tests/libpeas/plugins/extension-js/extension-js.gschema.xml
@@ -0,0 +1,9 @@
+<schemalist>
+  <schema id="extension-JS_LOADER" path="/org/gnome/libpeas/tests/extension-JS_LOADER/">
+    <key name="a-setting" type="s">
+      <default>'Blah'</default>
+      <summary>Just a setting.</summary>
+      <description>Just a setting.</description>
+    </key>
+  </schema>
+</schemalist>
diff --git a/tests/libpeas/plugins/extension-js/extension-js.js b/tests/libpeas/plugins/extension-js/extension-js.js
index 6953d6b..d3c2291 100644
--- a/tests/libpeas/plugins/extension-js/extension-js.js
+++ b/tests/libpeas/plugins/extension-js/extension-js.js
@@ -1,35 +1,44 @@
-function callable_extension() {
+const Peas = imports.gi.Peas;
+const Introspection = imports.gi.Introspection;
+
+function extension_js_plugin() {
+  this.read_only = "read-only";
+  this.readwrite = "readwrite";
 }
 
-callable_extension.prototype = {
+extension_js_plugin.prototype = {
   activate: function() {
   },
   deactivate: function() {
   },
+
+  get_plugin_info: function() {
+    return this.plugin_info;
+  },
+  get_settings: function() {
+    return this.plugin_info.get_settings(null);
+  },
+
   call_with_return: function() {
-    return "Hello, World!"
+    return "Hello, World!";
   },
   call_no_args: function() {
   },
   call_single_arg: function() {
-    return true
+    return true;
   },
   call_multi_args: function(in_, inout) {
-    return [ inout, in_ ]
+    return [ inout, in_ ];
   }
-}
-
-function properties_extension() {
-  this.read_only = "read-only";
-  this.readwrite = "readwrite";
-}
+};
 
 function missing_prerequisite_extension() {}
 
 var extensions = {
-  "PeasActivatable": callable_extension,
-  "IntrospectionCallable": callable_extension,
-  "IntrospectionProperties": properties_extension,
-  "IntrospectionHasPrerequisite": callable_extension,
+  "PeasActivatable": extension_js_plugin,
+  "IntrospectionBase": extension_js_plugin,
+  "IntrospectionCallable": extension_js_plugin,
+  "IntrospectionProperties": extension_js_plugin,
+  "IntrospectionHasPrerequisite": extension_js_plugin,
   "IntrospectionHasMissingPrerequisite": missing_prerequisite_extension
 };
diff --git a/tests/libpeas/plugins/extension-python/extension-python.gschema.xml b/tests/libpeas/plugins/extension-python/extension-python.gschema.xml
new file mode 100644
index 0000000..8ba4ee4
--- /dev/null
+++ b/tests/libpeas/plugins/extension-python/extension-python.gschema.xml
@@ -0,0 +1,9 @@
+<schemalist>
+  <schema id="extension-python" path="/org/gnome/libpeas/tests/extension-python/">
+    <key name="a-setting" type="s">
+      <default>'Blah'</default>
+      <summary>Just a setting.</summary>
+      <description>Just a setting.</description>
+    </key>
+  </schema>
+</schemalist>
diff --git a/tests/libpeas/plugins/extension-python/extension-python.py b/tests/libpeas/plugins/extension-python/extension-python.py
index 2791c15..242fc3d 100644
--- a/tests/libpeas/plugins/extension-python/extension-python.py
+++ b/tests/libpeas/plugins/extension-python/extension-python.py
@@ -3,19 +3,34 @@
 
 from gi.repository import GObject, Introspection, Peas
 
-class ActivatablePythonPlugin(GObject.Object, Peas.Activatable):
+class ExtensionPythonPlugin(GObject.Object, Peas.Activatable,
+                            Introspection.Base, Introspection.Callable,
+                            Introspection.Properties,
+                            Introspection.HasPrerequisite):
+
     object = GObject.property(type=GObject.Object)
 
+    construct_only = GObject.property(type=str)
+    read_only = GObject.property(type=str, default="read-only")
+    write_only = GObject.property(type=str)
+    readwrite = GObject.property(type=str, default="readwrite")
+
     def do_activate(self):
         pass
 
     def do_deactivate(self):
         pass
 
-    def update_state(self):
+    def do_update_state(self):
         pass
 
-class CallablePythonPlugin(ActivatablePythonPlugin, Introspection.Callable):
+
+    def do_get_plugin_info(self):
+        return self.plugin_info
+
+    def do_get_settings(self):
+        return self.plugin_info.get_settings(None)
+
     def do_call_with_return(self):
         return "Hello, World!";
 
@@ -27,15 +42,3 @@ class CallablePythonPlugin(ActivatablePythonPlugin, Introspection.Callable):
 
     def do_call_multi_args(self, in_, inout):
         return (inout, in_)
-
-class PropertiesPythonPlugin(GObject.Object, Introspection.Properties):
-    construct_only = GObject.property(type=str)
-
-    read_only = GObject.property(type=str, default="read-only")
-
-    write_only = GObject.property(type=str)
-
-    readwrite = GObject.property(type=str, default="readwrite")
-
-class HasPrerequisitePythonPlugin(CallablePythonPlugin, Introspection.HasPrerequisite):
-    pass
diff --git a/tests/libpeas/testing/testing-extension.c b/tests/libpeas/testing/testing-extension.c
index e14b391..b10293c 100644
--- a/tests/libpeas/testing/testing-extension.c
+++ b/tests/libpeas/testing/testing-extension.c
@@ -33,6 +33,7 @@
 #include "testing.h"
 #include "testing-extension.h"
 
+#include "introspection-base.h"
 #include "introspection-callable.h"
 #include "introspection-has-missing-prerequisite.h"
 #include "introspection-has-prerequisite.h"
@@ -214,7 +215,7 @@ test_extension_create_with_prerequisite (PeasEngine     *engine,
 }
 
 static void
-test_extension_reload (PeasEngine *engine,
+test_extension_reload (PeasEngine     *engine,
                        PeasPluginInfo *info)
 {
   gint i;
@@ -227,6 +228,49 @@ test_extension_reload (PeasEngine *engine,
 }
 
 static void
+test_extension_plugin_info (PeasEngine     *engine,
+                            PeasPluginInfo *info)
+{
+  PeasExtension *extension;
+  IntrospectionBase *base;
+
+  g_assert (peas_engine_load_plugin (engine, info));
+
+  extension = peas_engine_create_extension (engine, info,
+                                            INTROSPECTION_TYPE_BASE,
+                                            NULL);
+
+  base = INTROSPECTION_BASE (extension);
+
+  g_assert (introspection_base_get_plugin_info (base) == info);
+
+  g_object_unref (extension);
+}
+
+static void
+test_extension_get_settings (PeasEngine     *engine,
+                             PeasPluginInfo *info)
+{
+  PeasExtension *extension;
+  IntrospectionBase *base;
+  GSettings *settings;
+
+  g_assert (peas_engine_load_plugin (engine, info));
+
+  extension = peas_engine_create_extension (engine, info,
+                                            INTROSPECTION_TYPE_BASE,
+                                            NULL);
+
+  base = INTROSPECTION_BASE (extension);
+
+  settings = introspection_base_get_settings (base);
+  g_assert (G_IS_SETTINGS (settings));
+
+  g_object_unref (settings);
+  g_object_unref (extension);
+}
+
+static void
 test_extension_call_no_args (PeasEngine     *engine,
                              PeasPluginInfo *info)
 {
@@ -234,8 +278,7 @@ test_extension_call_no_args (PeasEngine     *engine,
   IntrospectionCallable *callable;
 
   extension = peas_engine_create_extension (engine, info,
-                                            PEAS_TYPE_ACTIVATABLE,
-                                            "object", NULL,
+                                            INTROSPECTION_TYPE_CALLABLE,
                                             NULL);
 
   callable = INTROSPECTION_CALLABLE (extension);
@@ -255,8 +298,7 @@ test_extension_call_with_return (PeasEngine     *engine,
   const gchar *return_val = NULL;
 
   extension = peas_engine_create_extension (engine, info,
-                                            PEAS_TYPE_ACTIVATABLE,
-                                            "object", NULL,
+                                            INTROSPECTION_TYPE_CALLABLE,
                                             NULL);
 
   callable = INTROSPECTION_CALLABLE (extension);
@@ -281,8 +323,7 @@ test_extension_call_single_arg (PeasEngine     *engine,
   gboolean called = FALSE;
 
   extension = peas_engine_create_extension (engine, info,
-                                            PEAS_TYPE_ACTIVATABLE,
-                                            "object", NULL,
+                                            INTROSPECTION_TYPE_CALLABLE,
                                             NULL);
 
   callable = INTROSPECTION_CALLABLE (extension);
@@ -308,8 +349,7 @@ test_extension_call_multi_args (PeasEngine     *engine,
   gint inout_saved;
 
   extension = peas_engine_create_extension (engine, info,
-                                            PEAS_TYPE_ACTIVATABLE,
-                                            "object", NULL,
+                                            INTROSPECTION_TYPE_CALLABLE,
                                             NULL);
 
   callable = INTROSPECTION_CALLABLE (extension);
@@ -437,6 +477,9 @@ testing_extension_basic (const gchar *loader)
   _EXTENSION_TEST (loader, "create-with-prerequisite", create_with_prerequisite);
 
   _EXTENSION_TEST (loader, "reload", reload);
+
+  _EXTENSION_TEST (loader, "plugin-info", plugin_info);
+  _EXTENSION_TEST (loader, "get-settings", get_settings);
 }
 
 void
diff --git a/tests/plugins/loadable/loadable-plugin.h b/tests/plugins/loadable/loadable-plugin.h
index 30530cb..178c721 100644
--- a/tests/plugins/loadable/loadable-plugin.h
+++ b/tests/plugins/loadable/loadable-plugin.h
@@ -38,7 +38,10 @@ typedef struct _TestingLoadablePluginClass    TestingLoadablePluginClass;
 typedef struct _TestingLoadablePluginPrivate  TestingLoadablePluginPrivate;
 
 struct _TestingLoadablePlugin {
-  PeasExtensionBase parent_instance;
+  /* Inherit from GObject and not PeasExtensionBase
+   * to check that it is possible
+   */
+  GObject parent_instance;
 
   TestingLoadablePluginPrivate *priv;
 };
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