tests/check/: Add a few tests for the channel position stuff in libgstaudio.

Original commit message from CVS:
* tests/check/Makefile.am:
* tests/check/libs/.cvsignore:
* tests/check/libs/audio.c: (structure_contains_channel_positions),
(fixed_caps_have_channel_positions), (GST_START_TEST),
(audio_suite), (main):
Add a few tests for the channel position stuff in libgstaudio.

ChangeLog

@@ -1,3 +1,12 @@
+2006-08-03  Tim-Philipp Müller  <tim at centricular dot net>
+
+	* tests/check/Makefile.am:
+	* tests/check/libs/.cvsignore:
+	* tests/check/libs/audio.c: (structure_contains_channel_positions),
+	(fixed_caps_have_channel_positions), (GST_START_TEST),
+	(audio_suite), (main):
+	  Add a few tests for the channel position stuff in libgstaudio.
+
 2006-08-03  Tim-Philipp Müller  <tim at centricular dot net>
 
 	* ext/alsa/gstalsa.c: (caps_add_channel_configuration),

tests/check/Makefile.am

@@ -53,6 +53,7 @@ check_PROGRAMS = \
 	elements/volume \
 	generic/clock-selection \
 	generic/states \
+	libs/audio \
 	libs/cddabasesrc \
 	libs/video \
         pipelines/simple-launch-lines
@@ -78,6 +79,11 @@ VALGRIND_TESTS_DISABLE = $(VALGRIND_TO_FIX)
 
 SUPPRESSIONS = $(top_srcdir)/common/gst.supp $(srcdir)/gst-plugins-base.supp
 
+libs_audio_LDADD = \
+	$(top_builddir)/gst-libs/gst/audio/libgstaudio-@GST_MAJORMINOR@.la \
+	$(LDADD)
+libs_audio_CFLAGS = -I$(top_srcdir)/gst-libs $(CFLAGS) $(AM_CFLAGS)
+
 libs_cddabasesrc_LDADD = \
 	$(top_builddir)/gst-libs/gst/cdda/libgstcdda-@GST_MAJORMINOR@.la \
 	$(LDADD)

tests/check/libs/.gitignore

@@ -1,3 +1,4 @@
 .dirstamp
 cddabasesrc
 video
+audio

tests/check/libs/audio.c

@@ -0,0 +1,146 @@
+/* GStreamer
+ *
+ * unit tests for audio support library
+ *
+ * Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/check/gstcheck.h>
+
+#include <gst/audio/audio.h>
+#include <gst/audio/multichannel.h>
+#include <string.h>
+
+static gboolean
+structure_contains_channel_positions (const GstStructure * s)
+{
+  return (gst_structure_get_value (s, "channel-positions") != NULL);
+}
+
+static gboolean
+fixed_caps_have_channel_positions (const GstCaps * caps)
+{
+  GstStructure *s;
+
+  fail_unless (caps != NULL);
+
+  s = gst_caps_get_structure (caps, 0);
+  fail_unless (s != NULL);
+
+  return structure_contains_channel_positions (s);
+}
+
+GST_START_TEST (test_multichannel_checks)
+{
+  GstAudioChannelPosition pos_2_mixed[2] = {
+    GST_AUDIO_CHANNEL_POSITION_FRONT_MONO,
+    GST_AUDIO_CHANNEL_POSITION_NONE
+  };
+  GstAudioChannelPosition pos_2_none[2] = {
+    GST_AUDIO_CHANNEL_POSITION_NONE,
+    GST_AUDIO_CHANNEL_POSITION_NONE
+  };
+  GstAudioChannelPosition pos_2_flr[2] = {
+    GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
+    GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT
+  };
+  GstAudioChannelPosition pos_2_frr[2] = {
+    GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
+    GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT
+  };
+  GstStructure *s;
+
+  s = gst_structure_new ("audio/x-raw-int", "channels", G_TYPE_INT, 2, NULL);
+
+  /* this should not work and issue a warning: FRONT_MONO + NONE */
+  _gst_check_expecting_log = TRUE;
+  gst_audio_set_channel_positions (s, pos_2_mixed);
+  _gst_check_expecting_log = FALSE;
+  fail_if (structure_contains_channel_positions (s));
+
+  /* this should work: NONE + NONE */
+  gst_audio_set_channel_positions (s, pos_2_none);
+  fail_unless (structure_contains_channel_positions (s));
+  gst_structure_remove_field (s, "channel-positions");
+
+  /* this should also work: FRONT_LEFT + FRONT_RIGHT */
+  gst_audio_set_channel_positions (s, pos_2_flr);
+  fail_unless (structure_contains_channel_positions (s));
+  gst_structure_remove_field (s, "channel-positions");
+
+  /* this should not work and issue a warning: FRONT_RIGHT twice */
+  _gst_check_expecting_log = TRUE;
+  gst_audio_set_channel_positions (s, pos_2_frr);
+  _gst_check_expecting_log = FALSE;
+
+/* FIXME: did I misunderstand _set_structure_channel_positions_list? */
+#if  0
+  /* this should not work and issue a warning: FRONT_RIGHT twice */
+  _gst_check_expecting_log = TRUE;
+  gst_audio_set_structure_channel_positions_list (s, pos_2_frr, 2);
+  _gst_check_expecting_log = FALSE;
+
+  /* this should not work and issue a warning: FRONT_MONO + NONE */
+  _gst_check_expecting_log = TRUE;
+  gst_audio_set_structure_channel_positions_list (s, pos_2_mixed, 2);
+  _gst_check_expecting_log = FALSE;
+
+  /* this should not work either (channel count mismatch) */
+  _gst_check_expecting_log = TRUE;
+  gst_audio_set_structure_channel_positions_list (s, pos_2_none, 44);
+  _gst_check_expecting_log = FALSE;
+  fail_if (structure_contains_channel_positions (s));
+#endif
+
+  gst_structure_free (s);
+}
+
+GST_END_TEST;
+
+static Suite *
+audio_suite (void)
+{
+  Suite *s = suite_create ("audio support library");
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_multichannel_checks);
+
+  return s;
+}
+
+int
+main (int argc, char **argv)
+{
+  int nf;
+
+  Suite *s = audio_suite ();
+  SRunner *sr = srunner_create (s);
+
+  gst_check_init (&argc, &argv);
+
+  srunner_run_all (sr, CK_NORMAL);
+  nf = srunner_ntests_failed (sr);
+  srunner_free (sr);
+
+  return nf;
+}