From 7d7108f35d1a949e4abeffaf7a2ecbacf831d87e Mon Sep 17 00:00:00 2001
From: Seungha Yang <seungha.yang@navercorp.com>
Date: Wed, 22 Jan 2020 22:30:11 +0900
Subject: [PATCH] tests: audiosink: Test class extension struct

Test a vfunc which belongs to GstAudioSinkExtension struct.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/547>
---
 tests/check/libs/audiosink.c | 123 +++++++++++++++++++++++++++++++++++
 tests/check/meson.build      |   1 +
 2 files changed, 124 insertions(+)
 create mode 100644 tests/check/libs/audiosink.c

diff --git a/tests/check/libs/audiosink.c b/tests/check/libs/audiosink.c
new file mode 100644
index 0000000000..c996d30f08
--- /dev/null
+++ b/tests/check/libs/audiosink.c
@@ -0,0 +1,123 @@
+/* GStreamer
+ *
+ * unit test for the audiosink base class
+ *
+ * Copyright (C) 2020 Seungha Yang <seungha.yang@navercorp.com>
+ *
+ * This library 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 library 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 library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/check/gstcheck.h>
+#include <gst/audio/gstaudiosink.h>
+
+#define GST_TYPE_AUDIO_FOO_SINK           (gst_audio_foo_sink_get_type())
+#define GST_AUDIO_FOO_SINK(obj)           (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_FOO_SINK,GstAudioFooSink))
+#define GST_AUDIO_FOO_SINK_CLASS(klass)   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_FOO_SINK,GstAudioFooSinkClass))
+typedef struct _GstAudioFooSink GstAudioFooSink;
+typedef struct _GstAudioFooSinkClass GstAudioFooSinkClass;
+
+static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (GST_AUDIO_CAPS_MAKE (GST_AUDIO_FORMATS_ALL)));
+
+struct _GstAudioFooSink
+{
+  GstAudioSink parent;
+
+  guint num_clear_all_call;
+};
+
+struct _GstAudioFooSinkClass
+{
+  GstAudioSinkClass parent_class;
+};
+
+GType gst_audio_foo_sink_get_type (void);
+G_DEFINE_TYPE (GstAudioFooSink, gst_audio_foo_sink, GST_TYPE_AUDIO_SINK);
+
+static void
+gst_audio_foo_sink_clear_all (GstAudioSink * sink)
+{
+  GstAudioFooSink *self = GST_AUDIO_FOO_SINK (sink);
+
+  self->num_clear_all_call++;
+}
+
+static void
+gst_audio_foo_sink_init (GstAudioFooSink * src)
+{
+}
+
+static void
+gst_audio_foo_sink_class_init (GstAudioFooSinkClass * klass)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+  GstAudioSinkClass *audiosink_class = GST_AUDIO_SINK_CLASS (klass);
+
+  gst_element_class_add_static_pad_template (element_class, &sink_template);
+  gst_element_class_set_metadata (element_class,
+      "AudioFooSink", "Sink/Audio",
+      "Audio Sink Unit Test element", "Foo Bar <foo@bar.com>");
+
+  audiosink_class->extension->clear_all = gst_audio_foo_sink_clear_all;
+}
+
+GST_START_TEST (test_class_extension)
+{
+  GstAudioFooSink *foosink = NULL;
+  GstAudioBaseSink *bsink;
+  GstAudioRingBuffer *ringbuffer;
+
+  foosink = g_object_new (GST_TYPE_AUDIO_FOO_SINK, NULL);
+  fail_unless (foosink != NULL);
+
+  /* change state to READY to prepare audio ringbuffer */
+  fail_unless (gst_element_set_state (GST_ELEMENT (foosink),
+          GST_STATE_READY) == GST_STATE_CHANGE_SUCCESS);
+
+  bsink = GST_AUDIO_BASE_SINK (foosink);
+  ringbuffer = bsink->ringbuffer;
+  fail_unless (ringbuffer != NULL);
+
+  /* This will invoke GstAudioSink::clear_all method */
+  gst_audio_ring_buffer_clear_all (ringbuffer);
+  fail_unless_equals_int (foosink->num_clear_all_call, 1);
+
+  gst_element_set_state (GST_ELEMENT (foosink), GST_STATE_NULL);
+  gst_clear_object (&foosink);
+}
+
+GST_END_TEST;
+
+
+static Suite *
+audiosink_suite (void)
+{
+  Suite *s = suite_create ("audiosink");
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_class_extension);
+
+  return s;
+}
+
+GST_CHECK_MAIN (audiosink)
diff --git a/tests/check/meson.build b/tests/check/meson.build
index 81e8b45275..8309bbdd41 100644
--- a/tests/check/meson.build
+++ b/tests/check/meson.build
@@ -7,6 +7,7 @@ base_tests = [
   [ 'libs/audiocdsrc.c' ],
   [ 'libs/audiodecoder.c' ],
   [ 'libs/audioencoder.c' ],
+  [ 'libs/audiosink.c' ],
   [ 'libs/baseaudiovisualizer.c' ],
   [ 'libs/discoverer.c' ],
   [ 'libs/fft.c' ],