[libpeas] Assert that testing interfaces are implemented

[Garrett Regier <gregier src gnome org>]

commit a702253f26bb3a2059fea5e6ee318eb85712eaf0
Author: Garrett Regier <garrettregier gmail com>
Date:   Thu Dec 8 18:55:43 2011 -0800

    Assert that testing interfaces are implemented

 .../libpeas/introspection/introspection-callable.c |   20 +++++++++++---------
 .../libpeas/plugins/extension-c/callable-plugin.c  |    6 ++++++
 2 files changed, 17 insertions(+), 9 deletions(-)
---
diff --git a/tests/libpeas/introspection/introspection-callable.c b/tests/libpeas/introspection/introspection-callable.c
index a411480..793bf32 100644
--- a/tests/libpeas/introspection/introspection-callable.c
+++ b/tests/libpeas/introspection/introspection-callable.c
@@ -46,10 +46,9 @@ introspection_callable_call_with_return (IntrospectionCallable *callable)
   g_return_val_if_fail (INTROSPECTION_IS_CALLABLE (callable), NULL);
 
   iface = INTROSPECTION_CALLABLE_GET_IFACE (callable);
-  if (iface->call_with_return != NULL)
-    return iface->call_with_return (callable);
+  g_assert (iface->call_with_return != NULL);
 
-  return NULL;
+  return iface->call_with_return (callable);
 }
 
 /**
@@ -64,8 +63,9 @@ introspection_callable_call_no_args (IntrospectionCallable *callable)
   g_return_if_fail (INTROSPECTION_IS_CALLABLE (callable));
 
   iface = INTROSPECTION_CALLABLE_GET_IFACE (callable);
-  if (iface->call_no_args != NULL)
-    iface->call_no_args (callable);
+  g_assert (iface->call_no_args != NULL);
+
+  iface->call_no_args (callable);
 }
 
 /**
@@ -82,8 +82,9 @@ introspection_callable_call_single_arg (IntrospectionCallable *callable,
   g_return_if_fail (INTROSPECTION_IS_CALLABLE (callable));
 
   iface = INTROSPECTION_CALLABLE_GET_IFACE (callable);
-  if (iface->call_single_arg != NULL)
-    iface->call_single_arg (callable, called);
+  g_assert (iface->call_single_arg != NULL);
+
+  iface->call_single_arg (callable, called);
 }
 
 /**
@@ -104,6 +105,7 @@ introspection_callable_call_multi_args (IntrospectionCallable *callable,
   g_return_if_fail (INTROSPECTION_IS_CALLABLE (callable));
 
   iface = INTROSPECTION_CALLABLE_GET_IFACE (callable);
-  if (iface->call_multi_args != NULL)
-    iface->call_multi_args (callable, in, out, inout);
+  g_assert (iface->call_multi_args != NULL);
+
+  iface->call_multi_args (callable, in, out, inout);
 }
diff --git a/tests/libpeas/plugins/extension-c/callable-plugin.c b/tests/libpeas/plugins/extension-c/callable-plugin.c
index b8b1366..c0310fd 100644
--- a/tests/libpeas/plugins/extension-c/callable-plugin.c
+++ b/tests/libpeas/plugins/extension-c/callable-plugin.c
@@ -71,6 +71,11 @@ testing_callable_plugin_get_settings (IntrospectionBase *base)
   return peas_plugin_info_get_settings (info, NULL);
 }
 
+static void
+testing_callable_plugin_call_no_args (IntrospectionCallable *callable)
+{
+}
+
 static const gchar *
 testing_callable_plugin_call_with_return (IntrospectionCallable *callable)
 {
@@ -109,6 +114,7 @@ introspection_base_iface_init (IntrospectionBaseInterface *iface)
 static void
 introspection_callable_iface_init (IntrospectionCallableInterface *iface)
 {
+  iface->call_no_args = testing_callable_plugin_call_no_args;
   iface->call_with_return = testing_callable_plugin_call_with_return;
   iface->call_single_arg = testing_callable_plugin_call_single_arg;
   iface->call_multi_args = testing_callable_plugin_call_multi_args;