From 9502d109705c07fc6d1c2fd4fc643c7976cb96fa Mon Sep 17 00:00:00 2001
From: Evangelos Ribeiro Tzaras <evangelos.tzaras@puri.sm>
Date: Fri, 9 Apr 2021 17:40:43 +0200
Subject: [PATCH] tests: Test SDP messages

---
 tests/test-sip.c | 126 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)

diff --git a/tests/test-sip.c b/tests/test-sip.c
index c237bc9..65a5add 100644
--- a/tests/test-sip.c
+++ b/tests/test-sip.c
@@ -7,11 +7,14 @@
  */
 
 #include "calls-provider.h"
+#include "calls-sip-media-manager.h"
 #include "calls-sip-provider.h"
 #include "calls-sip-origin.h"
 #include "calls-sip-util.h"
+#include "gst-rfc3551.h"
 
 #include <gtk/gtk.h>
+
 #include <sofia-sip/su_uniqueid.h>
 #include <libpeas/peas.h>
 
@@ -168,6 +171,127 @@ tear_down_sip_origins (SipFixture   *fixture,
   tear_down_sip_provider (fixture, user_data);
 }
 
+static gboolean
+find_string_in_sdp_message (const char *sdp,
+                            const char *string)
+{
+  char **split_string = NULL;
+  gboolean found = FALSE;
+
+  split_string = g_strsplit (sdp, "\r\n", -1);
+
+  for (guint i = 0; split_string[i] != NULL; i++) {
+    if (g_strcmp0 (split_string[i], string) == 0) {
+      found = TRUE;
+      break;
+    }
+  }
+
+  g_strfreev (split_string);
+  return found;
+}
+
+static void
+test_sip_media_manager ()
+{
+  g_autoptr (CallsSipMediaManager) manager = calls_sip_media_manager_default ();
+  char *sdp_message = NULL;
+  GList *codecs = NULL;
+
+  /* Check single codecs */
+  codecs = g_list_append (NULL, media_codec_by_name ("PCMA"));
+
+  /* PCMA RTP */
+  sdp_message =
+    calls_sip_media_manager_get_capabilities (manager, 40002, FALSE, codecs);
+
+  g_assert_true (sdp_message);
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "m=audio 40002 RTP/AVP 8"));
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "a=rtpmap:8 PCMA/8000"));
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "a=rtcp:40003"));
+
+  g_free (sdp_message);
+
+  /* PCMA SRTP */
+  sdp_message =
+    calls_sip_media_manager_get_capabilities (manager, 42002, TRUE, codecs);
+  g_assert_true (sdp_message);
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "m=audio 42002 RTP/SAVP 8"));
+
+  g_clear_pointer (&codecs, g_list_free);
+  g_free (sdp_message);
+
+  /* G722 RTP */
+  codecs = g_list_append (NULL, media_codec_by_name ("G722"));
+
+  sdp_message =
+    calls_sip_media_manager_get_capabilities (manager, 42042, FALSE, codecs);
+
+  g_assert_true (sdp_message);
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "m=audio 42042 RTP/AVP 9"));
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "a=rtpmap:9 G722/8000"));
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "a=rtcp:42043"));
+
+  g_clear_pointer (&codecs, g_list_free);
+  g_free (sdp_message);
+
+  /* G722 PCMU PCMA RTP (in this order) */
+  codecs = g_list_append (NULL, media_codec_by_name ("G722"));
+  codecs = g_list_append (codecs, media_codec_by_name ("PCMU"));
+  codecs = g_list_append (codecs, media_codec_by_name ("PCMA"));
+
+  sdp_message =
+    calls_sip_media_manager_get_capabilities (manager, 33340, FALSE, codecs);
+
+  g_assert_true (sdp_message);
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "m=audio 33340 RTP/AVP 9 0 8"));
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "a=rtpmap:9 G722/8000"));
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "a=rtpmap:0 PCMU/8000"));
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "a=rtpmap:8 PCMA/8000"));
+
+  g_clear_pointer (&codecs, g_list_free);
+  g_free (sdp_message);
+
+  /* GSM PCMA G722 PCMU (in this order) */
+  codecs = g_list_append (NULL, media_codec_by_name ("GSM"));
+  codecs = g_list_append (codecs, media_codec_by_name ("PCMA"));
+  codecs = g_list_append (codecs, media_codec_by_name ("G722"));
+  codecs = g_list_append (codecs, media_codec_by_name ("PCMU"));
+
+  sdp_message =
+    calls_sip_media_manager_get_capabilities (manager, 18098, TRUE, codecs);
+
+  g_assert_true (sdp_message);
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "m=audio 18098 RTP/SAVP 3 8 9 0"));
+
+  g_clear_pointer (&codecs, g_list_free);
+  g_free (sdp_message);
+
+  g_test_expect_message ("CallsSipMediaManager", G_LOG_LEVEL_WARNING,
+                         "No supported codecs found. Can't build meaningful SDP message");
+  sdp_message =
+    calls_sip_media_manager_get_capabilities (manager, 25048, FALSE, NULL);
+
+  g_test_assert_expected_messages ();
+  g_assert_true (sdp_message);
+  g_assert_true (find_string_in_sdp_message (sdp_message,
+                                             "m=audio 0 RTP/AVP"));
+
+  g_free (sdp_message);
+}
+
 gint
 main (gint   argc,
       gchar *argv[])
@@ -195,5 +319,7 @@ main (gint   argc,
   g_test_add ("/Calls/SIP/calls_direct_call", SipFixture, NULL,
               setup_sip_origins, test_sip_call_direct_calls, tear_down_sip_origins);
 
+  g_test_add_func ("/Calls/SIP/media_manager", test_sip_media_manager);
+
   return g_test_run();
 }