tests: jpegenc: Adds some getcaps test

Adds tests for the jpegenc getcaps function, to avoid
having it returning non-subset caps

tests/check/Makefile.am

@@ -50,6 +50,12 @@ else
 check_gdkpixbuf = 
 endif
 
+if USE_JPEG
+check_jpeg = elements/jpegenc
+else
+check_jpeg =
+endif
+
 if USE_SOUP
 check_soup = elements/souphttpsrc
 else
@@ -126,6 +132,7 @@ check_PROGRAMS = \
 	pipelines/effectv \
 	$(check_flac) \
 	$(check_gdkpixbuf) \
+        $(check_jpeg) \
 	$(check_soup) \
 	$(check_sunaudio) \
 	$(check_taglib) \

tests/check/elements/jpegenc.c

@@ -0,0 +1,159 @@
+/* GStreamer
+ *
+ * unit test for jpegenc
+ *
+ * Copyright (C) <2010> Thiago Santos <thiago.sousa.santos@collabora.co.uk>
+ *
+ * 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.
+ */
+
+#include <unistd.h>
+
+#include <gst/check/gstcheck.h>
+
+/* For ease of programming we use globals to keep refs for our floating
+ * sink pads we create; otherwise we always have to do get_pad,
+ * get_peer, and then remove references in every test function */
+static GstPad *mysinkpad;
+
+#define JPEG_CAPS_STRING "image/jpeg"
+
+#define JPEG_CAPS_RESTRICTIVE "image/jpeg, " \
+    "width = (int) [100, 200], " \
+    "framerate = (fraction) 25/1, " \
+    "extraparameter = (string) { abc, def }"
+
+static GstStaticPadTemplate jpeg_sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (JPEG_CAPS_STRING));
+
+static GstStaticPadTemplate any_sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+static GstStaticPadTemplate jpeg_restrictive_sinktemplate =
+GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (JPEG_CAPS_RESTRICTIVE));
+
+static GstElement *
+setup_jpegenc (GstStaticPadTemplate * sinktemplate)
+{
+  GstElement *jpegenc;
+
+  GST_DEBUG ("setup_jpegenc");
+  jpegenc = gst_check_setup_element ("jpegenc");
+  mysinkpad = gst_check_setup_sink_pad (jpegenc, sinktemplate, NULL);
+  gst_pad_set_active (mysinkpad, TRUE);
+
+  return jpegenc;
+}
+
+static void
+cleanup_jpegenc (GstElement * jpegenc)
+{
+  GST_DEBUG ("cleanup_jpegenc");
+  gst_element_set_state (jpegenc, GST_STATE_NULL);
+
+  gst_pad_set_active (mysinkpad, FALSE);
+  gst_check_teardown_sink_pad (jpegenc);
+  gst_check_teardown_element (jpegenc);
+}
+
+GST_START_TEST (test_jpegenc_getcaps)
+{
+  GstElement *jpegenc;
+  GstPad *sinkpad;
+  GstCaps *caps;
+  GstStructure *structure;
+  gint fps_n;
+  gint fps_d;
+  const GValue *value;
+
+  /* we are going to do some get caps to confirm it doesn't return non-subset
+   * caps */
+
+  jpegenc = setup_jpegenc (&any_sinktemplate);
+  sinkpad = gst_element_get_static_pad (jpegenc, "sink");
+  /* this should assert if non-subset */
+  caps = gst_pad_get_caps (sinkpad);
+  gst_caps_unref (caps);
+  gst_object_unref (sinkpad);
+  cleanup_jpegenc (jpegenc);
+
+  jpegenc = setup_jpegenc (&jpeg_sinktemplate);
+  sinkpad = gst_element_get_static_pad (jpegenc, "sink");
+  /* this should assert if non-subset */
+  caps = gst_pad_get_caps (sinkpad);
+  gst_caps_unref (caps);
+  gst_object_unref (sinkpad);
+  cleanup_jpegenc (jpegenc);
+
+  /* now use a more restricted one and check the resulting caps */
+  jpegenc = setup_jpegenc (&jpeg_restrictive_sinktemplate);
+  sinkpad = gst_element_get_static_pad (jpegenc, "sink");
+  /* this should assert if non-subset */
+  caps = gst_pad_get_caps (sinkpad);
+  structure = gst_caps_get_structure (caps, 0);
+
+  /* check the width */
+  value = gst_structure_get_value (structure, "width");
+  fail_unless (gst_value_get_int_range_min (value) == 100);
+  fail_unless (gst_value_get_int_range_max (value) == 200);
+
+  fail_unless (gst_structure_get_fraction (structure, "framerate", &fps_n,
+          &fps_d));
+  fail_unless (fps_n == 25);
+  fail_unless (fps_d == 1);
+
+  gst_caps_unref (caps);
+  gst_object_unref (sinkpad);
+  cleanup_jpegenc (jpegenc);
+}
+
+GST_END_TEST;
+
+static Suite *
+jpegenc_suite (void)
+{
+  Suite *s = suite_create ("jpegenc");
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_jpegenc_getcaps);
+
+  return s;
+}
+
+int
+main (int argc, char **argv)
+{
+  int nf;
+
+  Suite *s = jpegenc_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;
+}