gstreamer/tests/check/gst/gststructure.c

/* GStreamer
 * Copyright (C) <2005> Thomas Vander Stichele <thomas at apestaart dot org>
 *
 * gststructure.c: Unit tests for GstStructure
 *
 * 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.
 */


#include <gst/gststructure.h>
#include <gst/check/gstcheck.h>


GST_START_TEST (test_from_string_int)
{
  const char *strings[] = {
    "video/x-raw, width = (int) 123456",
    "video/x-raw, stride = (int) -123456",
    "video/x-raw, red_mask = (int) 0xFFFF",
    "video/x-raw, red_mask = (int) 0x0000FFFF",
    "video/x-raw, red_mask = (int) 0x7FFFFFFF",
    "video/x-raw, red_mask = (int) 0x80000000",
    "video/x-raw, red_mask = (int) 0xFF000000",
    /* result from
     * gst-launch ... ! "video/x-raw, red_mask=(int)0xFF000000" ! ... */
    "video/x-raw,\\ red_mask=(int)0xFF000000",
  };
  gint results[] = {
    123456,
    -123456,
    0xFFFF,
    0xFFFF,
    0x7FFFFFFF,
    (gint) 0x80000000,
    (gint) 0xFF000000,
    (gint) 0xFF000000,
  };
  GstStructure *structure;
  int i;

  for (i = 0; i < G_N_ELEMENTS (strings); ++i) {
    const char *s;
    const gchar *name;
    gint value;

    s = strings[i];

    structure = gst_structure_from_string (s, NULL);
    fail_if (structure == NULL, "Could not get structure from string %s", s);
    name = gst_structure_nth_field_name (structure, 0);
    fail_unless (gst_structure_get_int (structure, name, &value));
    fail_unless (value == results[i],
        "Value %d is not the expected result %d for string %s",
        value, results[i], s);

    /* cleanup */
    gst_structure_free (structure);
  }
}

GST_END_TEST;

GST_START_TEST (test_from_string_uint)
{
  const char *strings[] = {
    "taglist, bar = (uint) 123456",
    "taglist, bar = (uint) 0xFFFF",
    "taglist, bar = (uint) 0x0000FFFF",
    "taglist, bar = (uint) 0x7FFFFFFF",
    "taglist, bar = (uint) 0x80000000",
    "taglist, bar = (uint) 0xFF000000"
  };
  guint results[] = {
    123456,
    0xFFFF,
    0xFFFF,
    0x7FFFFFFF,
    0x80000000,
    0xFF000000,
  };
  GstStructure *structure;
  int i;

  for (i = 0; i < G_N_ELEMENTS (strings); ++i) {
    const char *s;
    const gchar *name;
    guint value;

    s = strings[i];

    structure = gst_structure_from_string (s, NULL);
    fail_if (structure == NULL, "Could not get structure from string %s", s);
    name = gst_structure_nth_field_name (structure, 0);
    fail_unless (gst_structure_get_uint (structure, name, &value));
    fail_unless (value == results[i],
        "Value %u is not the expected result %u for string %s",
        value, results[i], s);

    /* cleanup */
    gst_structure_free (structure);
  }
}

GST_END_TEST;

/* Test type conversions from string */
GST_START_TEST (test_from_string)
{
  GstStructure *structure;
  const gchar *s;
  const GValue *val;

  s = "test-string,value=1";
  structure = gst_structure_from_string (s, NULL);
  fail_if (structure == NULL, "Could not get structure from string %s", s);
  fail_unless ((val = gst_structure_get_value (structure, "value")) != NULL);
  fail_unless (G_VALUE_HOLDS_INT (val));
  gst_structure_free (structure);

  s = "test-string,value=1.0";
  structure = gst_structure_from_string (s, NULL);
  fail_if (structure == NULL, "Could not get structure from string %s", s);
  fail_unless ((val = gst_structure_get_value (structure, "value")) != NULL);
  fail_unless (G_VALUE_HOLDS_DOUBLE (val));
  gst_structure_free (structure);

  s = "test-string,value=1/1";
  structure = gst_structure_from_string (s, NULL);
  fail_if (structure == NULL, "Could not get structure from string %s", s);
  fail_unless ((val = gst_structure_get_value (structure, "value")) != NULL);
  fail_unless (GST_VALUE_HOLDS_FRACTION (val));
  gst_structure_free (structure);

  s = "test-string,value=bar";
  structure = gst_structure_from_string (s, NULL);
  fail_if (structure == NULL, "Could not get structure from string %s", s);
  fail_unless ((val = gst_structure_get_value (structure, "value")) != NULL);
  fail_unless (G_VALUE_HOLDS_STRING (val));
  gst_structure_free (structure);

  s = "test-string,value=true";
  structure = gst_structure_from_string (s, NULL);
  fail_if (structure == NULL, "Could not get structure from string %s", s);
  fail_unless ((val = gst_structure_get_value (structure, "value")) != NULL);
  fail_unless (G_VALUE_HOLDS_BOOLEAN (val));
  fail_unless_equals_int (g_value_get_boolean (val), TRUE);
  gst_structure_free (structure);

  /* Tests for flagset deserialisation */
  s = "foobar,value=0010:ffff";
  structure = gst_structure_from_string (s, NULL);
  fail_if (structure == NULL, "Could not get structure from string %s", s);
  fail_unless ((val = gst_structure_get_value (structure, "value")) != NULL);
  fail_unless (GST_VALUE_HOLDS_FLAG_SET (val));
  gst_structure_free (structure);

  /* In the presence of the hex values, the strings don't matter as long as they
   * have the right form */
  s = "foobar,value=0010:ffff:+random+other/not-the-other";
  structure = gst_structure_from_string (s, NULL);
  fail_if (structure == NULL, "Could not get structure from string %s", s);
  fail_unless ((val = gst_structure_get_value (structure, "value")) != NULL);
  fail_unless (GST_VALUE_HOLDS_FLAG_SET (val));
  gst_structure_free (structure);

  /* Test that a timecode string is deserialised as a string, not a flagset:
   * https://bugzilla.gnome.org/show_bug.cgi?id=779755 */
  s = "foobar,timecode=00:01:00:00";
  structure = gst_structure_from_string (s, NULL);
  fail_if (structure == NULL, "Could not get structure from string %s", s);
  fail_unless ((val = gst_structure_get_value (structure, "timecode")) != NULL);
  fail_unless (G_VALUE_HOLDS_STRING (val));
  gst_structure_free (structure);

  s = "0.10:decoder-video/mpeg, abc=(boolean)false";
  ASSERT_CRITICAL (structure = gst_structure_from_string (s, NULL));
  fail_unless (structure == NULL, "Could not get structure from string %s", s);

  /* make sure we bail out correctly in case of an error or if parsing fails */
  s = "***foo***, abc=(boolean)false";
  structure = gst_structure_from_string (s, NULL);
  fail_unless (structure == NULL);

  /* assert that we get a warning if the structure wasn't entirely consumed, but
   * we didn't provide an end pointer */
  s = "foo/bar; other random data";
  ASSERT_WARNING (structure = gst_structure_from_string (s, NULL));
  fail_if (structure == NULL, "Could not get structure from string %s", s);
  gst_structure_free (structure);

  /* make sure we handle \ as last character in various things, run with valgrind */
  s = "foo,test=\"foobar\\";
  structure = gst_structure_from_string (s, NULL);
  fail_unless (structure == NULL);
  s = "\\";
  structure = gst_structure_from_string (s, NULL);
  fail_unless (structure == NULL);
  s = "foobar,test\\";
  structure = gst_structure_from_string (s, NULL);
  fail_unless (structure == NULL);
  s = "foobar,test=(string)foo\\";
  structure = gst_structure_from_string (s, NULL);
  fail_unless (structure == NULL);
}

GST_END_TEST;


GST_START_TEST (test_to_string)
{
  GstStructure *st1;

  ASSERT_CRITICAL (st1 = gst_structure_new_empty ("Foo\nwith-newline"));
  fail_unless (st1 == NULL);

  ASSERT_CRITICAL (st1 = gst_structure_new_empty ("Foo with whitespace"));
  fail_unless (st1 == NULL);
  ASSERT_CRITICAL (st1 = gst_structure_new_empty ("1st"));
  fail_unless (st1 == NULL);
}

GST_END_TEST;


GST_START_TEST (test_to_from_string)
{
  GstStructure *st1, *st2;
  gchar *str;

  /* test escaping/unescaping */
  st1 = gst_structure_new ("FooBar-123/0_1", "num", G_TYPE_INT, 9173,
      "string", G_TYPE_STRING, "Something Like Face/Off", NULL);
  str = gst_structure_to_string (st1);
  st2 = gst_structure_from_string (str, NULL);
  g_free (str);

  fail_unless (st2 != NULL);
  fail_unless (gst_structure_is_equal (st1, st2),
      "Structures did not match:\n\tStructure 1: %" GST_PTR_FORMAT
      "\n\tStructure 2: %" GST_PTR_FORMAT "\n", st1, st2);

  gst_structure_free (st1);
  gst_structure_free (st2);
}

GST_END_TEST;

/* Added to make sure taglists are properly serialized/deserialized after bug
 * https://bugzilla.gnome.org/show_bug.cgi?id=733131 */
GST_START_TEST (test_to_from_string_tag_event)
{
  GstEvent *tagevent;
  GstTagList *taglist;
  GstStructure *st1, *st2;
  gchar *str;

  /* empty taglist */
  taglist = gst_tag_list_new_empty ();
  tagevent = gst_event_new_tag (taglist);

  st1 = (GstStructure *) gst_event_get_structure (tagevent);
  str = gst_structure_to_string (st1);
  fail_unless (str != NULL);

  st2 = gst_structure_new_from_string (str);
  fail_unless (st2 != NULL);
  fail_unless (gst_structure_is_equal (st1, st2));
  gst_event_unref (tagevent);
  gst_structure_free (st2);
  g_free (str);

  /* taglist with data */
  taglist = gst_tag_list_new ("title", "TEST TITLE", NULL);
  tagevent = gst_event_new_tag (taglist);

  st1 = (GstStructure *) gst_event_get_structure (tagevent);
  str = gst_structure_to_string (st1);
  fail_unless (str != NULL);

  st2 = gst_structure_new_from_string (str);
  fail_unless (st2 != NULL);
  fail_unless (gst_structure_is_equal (st1, st2));
  gst_event_unref (tagevent);
  gst_structure_free (st2);
  g_free (str);
}

GST_END_TEST;

GST_START_TEST (test_complete_structure)
{
  GstStructure *structure;
  const gchar *s;

  s = "GstEventSeek, rate=(double)1, format=(GstFormat)GST_FORMAT_TIME, flags=(GstSeekFlags)GST_SEEK_FLAG_NONE, start_type=(GstSeekType)GST_SEEK_TYPE_SET, start=(gint64)1000000000, stop_type=(GstSeekType)GST_SEEK_TYPE_NONE, stop=(gint64)0";
  structure = gst_structure_from_string (s, NULL);
  fail_if (structure == NULL, "Could not get structure from string %s", s);
  /* FIXME: TODO: add checks for correct serialization of members ? */
  gst_structure_free (structure);
}

GST_END_TEST;

GST_START_TEST (test_string_properties)
{
  GstStructure *st1, *st2;
  gchar *str;

  /* test escaping/unescaping */
  st1 = gst_structure_new ("RandomStructure", "prop1", G_TYPE_STRING, "foo",
      "prop2", G_TYPE_STRING, "", "prop3", G_TYPE_STRING, NULL,
      "prop4", G_TYPE_STRING, "NULL", NULL);
  str = gst_structure_to_string (st1);
  st2 = gst_structure_from_string (str, NULL);
  g_free (str);

  fail_unless (st2 != NULL);
  fail_unless (gst_structure_is_equal (st1, st2),
      "Structures did not match:\n\tStructure 1: %" GST_PTR_FORMAT
      "\n\tStructure 2: %" GST_PTR_FORMAT "\n", st1, st2);

  gst_structure_free (st1);
  gst_structure_free (st2);
}

GST_END_TEST;

GST_START_TEST (test_structure_new)
{
  GstStructure *s;
  GError *e;
  GQuark domain;
  gboolean bool;
  gint num, den;
  GstClockTime clocktime;
  guint64 uint64;

  s = gst_structure_new ("name",
      "key", G_TYPE_STRING, "value",
      "bool", G_TYPE_BOOLEAN, TRUE,
      "fraction", GST_TYPE_FRACTION, 1, 5,
      "clocktime", GST_TYPE_CLOCK_TIME, GST_CLOCK_TIME_NONE,
      "uint64", G_TYPE_UINT64, (guint64) 1234, NULL);

  fail_unless (gst_structure_get_field_type (s, "unknown") == G_TYPE_INVALID);
  /* test setting a different name */
  gst_structure_set_name (s, "newname");
  fail_unless (strcmp (gst_structure_get_string (s, "key"), "value") == 0);
  fail_unless (gst_structure_has_field (s, "key"));
  fail_unless_equals_int (gst_structure_n_fields (s), 5);
  /* test removing a field */
  gst_structure_remove_field (s, "key");
  fail_if (gst_structure_get_string (s, "key"));
  fail_if (gst_structure_has_field (s, "key"));
  fail_unless_equals_int (gst_structure_n_fields (s), 4);

  fail_unless (gst_structure_get_boolean (s, "bool", &bool));
  fail_unless (bool);

  fail_unless (gst_structure_get_fraction (s, "fraction", &num, &den));
  fail_unless_equals_int (num, 1);
  fail_unless_equals_int (den, 5);

  fail_unless (gst_structure_get_clock_time (s, "clocktime", &clocktime));
  fail_unless_equals_uint64 (clocktime, GST_CLOCK_TIME_NONE);

  fail_unless (gst_structure_get_uint64 (s, "uint64", &uint64));
  fail_unless_equals_uint64 (uint64, 1234);

  gst_structure_free (s);

  domain = g_quark_from_static_string ("test");
  e = g_error_new (domain, 0, "a test error");
  s = gst_structure_new ("name", "key", G_TYPE_ERROR, e, NULL);
  g_error_free (e);
  gst_structure_free (s);

  ASSERT_CRITICAL (gst_structure_free (gst_structure_new_empty
          ("0.10:decoder-video/mpeg")));

  /* make sure we bail out correctly in case of an error or if parsing fails */
  ASSERT_CRITICAL (s = gst_structure_new ("^joo\nba\ndoo^",
          "abc", G_TYPE_BOOLEAN, FALSE, NULL));
  fail_unless (s == NULL);
}

GST_END_TEST;

GST_START_TEST (test_fixate)
{
  GstStructure *s;

  s = gst_structure_new ("name",
      "int", G_TYPE_INT, 5,
      "intrange", GST_TYPE_INT_RANGE, 5, 10,
      "intrange2", GST_TYPE_INT_RANGE, 5, 10, NULL);

  fail_if (gst_structure_fixate_field_nearest_int (s, "int", 5));
  fail_unless (gst_structure_fixate_field_nearest_int (s, "intrange", 5));
  fail_if (gst_structure_fixate_field_nearest_int (s, "intrange", 5));
  fail_unless (gst_structure_fixate_field_nearest_int (s, "intrange2", 15));
  fail_if (gst_structure_fixate_field_nearest_int (s, "intrange2", 15));
  gst_structure_free (s);
}

GST_END_TEST;

GST_START_TEST (test_fixate_frac_list)
{
  GstStructure *s, *s2;
  GValue list = { 0 };
  GValue frac = { 0 };
  gchar *str;
  gint num, denom;

  g_value_init (&list, GST_TYPE_LIST);
  g_value_init (&frac, GST_TYPE_FRACTION);

  gst_value_set_fraction (&frac, 30, 1);
  gst_value_list_append_value (&list, &frac);
  gst_value_set_fraction (&frac, 15, 1);
  gst_value_list_append_value (&list, &frac);
  gst_value_set_fraction (&frac, 10, 1);
  gst_value_list_append_value (&list, &frac);

  s = gst_structure_new_empty ("name");
  gst_structure_set_value (s, "frac", &list);
  g_value_unset (&frac);
  g_value_unset (&list);

  str = gst_structure_to_string (s);
  GST_DEBUG ("list %s", str);
  g_free (str);

  /* take copy */
  s2 = gst_structure_copy (s);

  /* fixate to the nearest fraction, this should give 15/1 */
  fail_unless (gst_structure_fixate_field_nearest_fraction (s, "frac", 14, 1));

  fail_unless (gst_structure_get_fraction (s, "frac", &num, &denom));
  fail_unless (num == 15);
  fail_unless (denom == 1);

  gst_structure_free (s);
  s = s2;

  /* fixate to the nearest fraction, this should give 30/1 */
  fail_unless (gst_structure_fixate_field_nearest_fraction (s, "frac", G_MAXINT,
          1));

  fail_unless (gst_structure_get_fraction (s, "frac", &num, &denom));
  fail_unless (num == 30);
  fail_unless (denom == 1);
  gst_structure_free (s);
}

GST_END_TEST;

GST_START_TEST (test_is_subset_equal_array_list)
{
  GstStructure *s1, *s2;

  s1 = gst_structure_from_string ("test/test, channels=(int){ 1, 2 }", NULL);
  fail_if (s1 == NULL);
  s2 = gst_structure_from_string ("test/test, channels=(int)[ 1, 2 ]", NULL);
  fail_if (s2 == NULL);

  fail_unless (gst_structure_is_subset (s1, s2));

  gst_structure_free (s1);
  gst_structure_free (s2);
}

GST_END_TEST;

GST_START_TEST (test_is_subset_different_name)
{
  GstStructure *s1, *s2;

  s1 = gst_structure_from_string ("test/test, channels=(int)1", NULL);
  fail_if (s1 == NULL);
  s2 = gst_structure_from_string ("test/baz, channels=(int)1", NULL);
  fail_if (s2 == NULL);

  fail_unless (!gst_structure_is_subset (s1, s2));

  gst_structure_free (s1);
  gst_structure_free (s2);
}

GST_END_TEST;

GST_START_TEST (test_is_subset_superset_missing_fields)
{
  GstStructure *s1, *s2;

  /* a missing field is equivalent to any value */
  s1 = gst_structure_from_string ("test/test, channels=(int)1, rate=(int)1",
      NULL);
  fail_if (s1 == NULL);
  s2 = gst_structure_from_string ("test/test, channels=(int)1", NULL);
  fail_if (s2 == NULL);

  fail_unless (gst_structure_is_subset (s1, s2));

  gst_structure_free (s1);
  gst_structure_free (s2);
}

GST_END_TEST;

GST_START_TEST (test_is_subset_superset_extra_fields)
{
  GstStructure *s1, *s2;

  /* a missing field is equivalent to any value */
  s1 = gst_structure_from_string ("test/test, channels=(int)1", NULL);
  fail_if (s1 == NULL);
  s2 = gst_structure_from_string ("test/test, channels=(int)1, rate=(int)1",
      NULL);
  fail_if (s2 == NULL);

  fail_unless (!gst_structure_is_subset (s1, s2));

  gst_structure_free (s1);
  gst_structure_free (s2);
}

GST_END_TEST;

GST_START_TEST (test_is_subset_superset_extra_values)
{
  GstStructure *s1, *s2;

  s1 = gst_structure_from_string ("test/test, channels=(int)1", NULL);
  fail_if (s1 == NULL);
  s2 = gst_structure_from_string ("test/test, channels=(int)[ 1, 2 ]", NULL);
  fail_if (s2 == NULL);

  fail_unless (gst_structure_is_subset (s1, s2));

  gst_structure_free (s1);
  gst_structure_free (s2);
}

GST_END_TEST;


GST_START_TEST (test_structure_nested)
{
  GstStructure *sp, *sc1, *sc2;
  gchar *str;

  sc1 = gst_structure_new ("Camera",
      "XResolution", G_TYPE_INT, 72, "YResolution", G_TYPE_INT, 73, NULL);
  fail_unless (sc1 != NULL);

  sc2 = gst_structure_new ("Image-Data",
      "Orientation", G_TYPE_STRING, "top-left",
      "Comment", G_TYPE_STRING, "super photo", NULL);
  fail_unless (sc2 != NULL);

  sp = gst_structure_new ("Exif", "Camera", GST_TYPE_STRUCTURE, sc1,
      "Image Data", GST_TYPE_STRUCTURE, sc2, NULL);
  fail_unless (sp != NULL);

  fail_unless (gst_structure_n_fields (sp) == 2);

  fail_unless (gst_structure_has_field_typed (sp, "Camera",
          GST_TYPE_STRUCTURE));

  str = gst_structure_to_string (sp);
  fail_unless (str != NULL);

  GST_DEBUG ("serialized to '%s'", str);

  fail_unless (g_str_equal (str,
          "Exif"
          ", Camera=(structure)\"Camera\\,\\ XResolution\\=\\(int\\)72\\,\\ YResolution\\=\\(int\\)73\\;\""
          ", Image Data=(structure)\"Image-Data\\,\\ Orientation\\=\\(string\\)top-left\\,\\ Comment\\=\\(string\\)\\\"super\\\\\\ photo\\\"\\;\";"));

  g_free (str);
  str = NULL;

  gst_structure_free (sc1);
  gst_structure_free (sc2);
  gst_structure_free (sp);
}

GST_END_TEST;

GST_START_TEST (test_structure_nested_from_and_to_string)
{
  GstStructure *s;
  const gchar *str1;
  gchar *str2, *end = NULL;

  str1 = "main"
      ", main-sub1=(structure)\"type-b\\,\\ machine-type\\=\\(int\\)0\\;\""
      ", main-sub2=(structure)\"type-a\\,\\ plugin-filename\\=\\(string\\)\\\"/home/user/lib/lib\\\\\\ with\\\\\\ spaces.dll\\\"\\,\\ machine-type\\=\\(int\\)1\\;\""
      ", main-sub3=(structure)\"type-b\\,\\ plugin-filename\\=\\(string\\)/home/user/lib/lib_no_spaces.so\\,\\ machine-type\\=\\(int\\)1\\;\""
      ";";

  s = gst_structure_from_string (str1, &end);
  fail_unless (s != NULL);

  GST_DEBUG ("not parsed part : %s", end);
  fail_unless (*end == '\0');

  fail_unless (gst_structure_n_fields (s) == 3);

  fail_unless (gst_structure_has_field_typed (s, "main-sub1",
          GST_TYPE_STRUCTURE));

  str2 = gst_structure_to_string (s);
  fail_unless (str2 != NULL);

  fail_unless (g_str_equal (str1, str2));

  g_free (str2);

  gst_structure_free (s);
}

GST_END_TEST;

GST_START_TEST (test_vararg_getters)
{
  GstStructure *s;
  GstBuffer *buf, *buf2;
  gboolean ret;
  GstCaps *caps, *caps2;
  GstMapInfo info;
  gdouble d;
  gint64 i64;
  gchar *c;
  gint i, num, denom;
  guint8 *data;

  buf = gst_buffer_new_and_alloc (3);

  fail_unless (gst_buffer_map (buf, &info, GST_MAP_WRITE));
  data = info.data;
  data[0] = 0xf0;
  data[1] = 0x66;
  data[2] = 0x0d;
  gst_buffer_unmap (buf, &info);

  caps = gst_caps_new_empty_simple ("video/x-foo");

  s = gst_structure_new ("test", "int", G_TYPE_INT, 12345678, "string",
      G_TYPE_STRING, "Hello World!", "buf", GST_TYPE_BUFFER, buf, "caps",
      GST_TYPE_CAPS, caps, "int64", G_TYPE_INT64, G_GINT64_CONSTANT (-99),
      "double", G_TYPE_DOUBLE, G_MAXDOUBLE, "frag", GST_TYPE_FRACTION, 39, 14,
      NULL);

  /* first the plain one */
  ret = gst_structure_get (s, "double", G_TYPE_DOUBLE, &d, "string",
      G_TYPE_STRING, &c, "caps", GST_TYPE_CAPS, &caps2, "buf",
      GST_TYPE_BUFFER, &buf2, "frag", GST_TYPE_FRACTION, &num, &denom, "int",
      G_TYPE_INT, &i, "int64", G_TYPE_INT64, &i64, NULL);

  fail_unless (ret);
  fail_unless_equals_string (c, "Hello World!");
  fail_unless_equals_int (i, 12345678);
  fail_unless_equals_float (d, G_MAXDOUBLE);
  fail_unless_equals_int (num, 39);
  fail_unless_equals_int (denom, 14);
  fail_unless (i64 == -99);
  fail_unless (caps == caps2);
  fail_unless (buf == buf2);

  /* expected failures */
  ASSERT_CRITICAL (gst_structure_get (s, NULL, G_TYPE_INT, &i, NULL));
  fail_if (gst_structure_get (s, "int", G_TYPE_INT, &i, "double",
          G_TYPE_FLOAT, &d, NULL));
  fail_if (gst_structure_get (s, "int", G_TYPE_INT, &i, "dooble",
          G_TYPE_DOUBLE, &d, NULL));

  g_free (c);
  c = NULL;
  gst_caps_unref (caps2);
  caps2 = NULL;
  gst_buffer_unref (buf2);
  buf2 = NULL;

  /* and now the _id variant */
  ret = gst_structure_id_get (s, g_quark_from_static_string ("double"),
      G_TYPE_DOUBLE, &d, g_quark_from_static_string ("string"), G_TYPE_STRING,
      &c, g_quark_from_static_string ("caps"), GST_TYPE_CAPS, &caps2,
      g_quark_from_static_string ("buf"), GST_TYPE_BUFFER, &buf2,
      g_quark_from_static_string ("int"), G_TYPE_INT, &i,
      g_quark_from_static_string ("int64"), G_TYPE_INT64, &i64, NULL);

  fail_unless (ret);
  fail_unless_equals_string (c, "Hello World!");
  fail_unless_equals_int (i, 12345678);
  fail_unless_equals_float (d, G_MAXDOUBLE);
  fail_unless (i64 == -99);
  fail_unless (caps == caps2);
  fail_unless (buf == buf2);

  /* expected failures */
  ASSERT_CRITICAL (gst_structure_get (s, 0, G_TYPE_INT, &i, NULL));
  fail_if (gst_structure_id_get (s, g_quark_from_static_string ("int"),
          G_TYPE_INT, &i, g_quark_from_static_string ("double"), G_TYPE_FLOAT,
          &d, NULL));
  fail_if (gst_structure_id_get (s, g_quark_from_static_string ("int"),
          G_TYPE_INT, &i, g_quark_from_static_string ("dooble"), G_TYPE_DOUBLE,
          &d, NULL));

  g_free (c);
  gst_caps_unref (caps2);
  gst_buffer_unref (buf2);

  /* finally make sure NULL as return location is handled gracefully */
  ret = gst_structure_get (s, "double", G_TYPE_DOUBLE, NULL, "string",
      G_TYPE_STRING, NULL, "caps", GST_TYPE_CAPS, NULL, "buf",
      GST_TYPE_BUFFER, NULL, "int", G_TYPE_INT, &i, "frag", GST_TYPE_FRACTION,
      NULL, NULL, "int64", G_TYPE_INT64, &i64, NULL);

  ASSERT_WARNING (gst_structure_get (s, "frag", GST_TYPE_FRACTION, NULL,
          &denom, NULL));
  ASSERT_WARNING (gst_structure_get (s, "frag", GST_TYPE_FRACTION, &num,
          NULL, NULL));

  /* clean up */
  gst_caps_unref (caps);
  gst_buffer_unref (buf);
  gst_structure_free (s);
}

GST_END_TEST;

static gboolean
foreach_func (GQuark field_id, const GValue * value, gpointer user_data)
{
  gint *sum = user_data;
  gint v = 0;

  if (G_VALUE_HOLDS_INT (value))
    v = g_value_get_int (value);
  *sum += v;

  return TRUE;
}

GST_START_TEST (test_foreach)
{
  GstStructure *s;
  gint sum = 0;

  s = gst_structure_new ("foo/bar", "baz", G_TYPE_INT, 1, "bla", G_TYPE_INT, 3,
      NULL);
  fail_unless (gst_structure_foreach (s, foreach_func, &sum));
  fail_unless_equals_int (sum, 4);
  gst_structure_free (s);

}

GST_END_TEST;

static gboolean
map_func (GQuark field_id, GValue * value, gpointer user_data)
{
  if (G_VALUE_HOLDS_INT (value))
    g_value_set_int (value, 123);

  return TRUE;
}

GST_START_TEST (test_map_in_place)
{
  GstStructure *s, *s2;

  s = gst_structure_new ("foo/bar", "baz", G_TYPE_INT, 1, "bla", G_TYPE_INT, 3,
      NULL);
  s2 = gst_structure_new ("foo/bar", "baz", G_TYPE_INT, 123, "bla", G_TYPE_INT,
      123, NULL);
  fail_unless (gst_structure_map_in_place (s, map_func, NULL));
  fail_unless (gst_structure_is_equal (s, s2));
  gst_structure_free (s);
  gst_structure_free (s2);

}

GST_END_TEST;

static gboolean
filter_map_func (GQuark field_id, GValue * value, gpointer user_data)
{
  if (strcmp (g_quark_to_string (field_id), "bla") == 0)
    return FALSE;

  if (G_VALUE_HOLDS_INT (value))
    g_value_set_int (value, 2);

  return TRUE;
}

GST_START_TEST (test_filter_and_map_in_place)
{
  GstStructure *s, *s2;

  s = gst_structure_new ("foo/bar", "baz", G_TYPE_INT, 1, "bla", G_TYPE_INT, 3,
      NULL);
  s2 = gst_structure_new ("foo/bar", "baz", G_TYPE_INT, 2, NULL);
  gst_structure_filter_and_map_in_place (s, filter_map_func, NULL);
  fail_unless (gst_structure_is_equal (s, s2));
  gst_structure_free (s);
  gst_structure_free (s2);
}

GST_END_TEST;

GST_START_TEST (test_flagset)
{
  GstStructure *s;
  GType test_flagset_type;
  guint test_flags =
      GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_SKIP | GST_SEEK_FLAG_SNAP_AFTER;
  guint test_mask = GST_FLAG_SET_MASK_EXACT;
  guint out_flags, out_mask;

  test_flagset_type = gst_flagset_register (GST_TYPE_SEEK_FLAGS);
  fail_unless (g_type_is_a (test_flagset_type, GST_TYPE_FLAG_SET));

  /* Check that we can retrieve a non-standard flagset from the structure */
  s = gst_structure_new ("test-struct", "test-flagset", test_flagset_type,
      test_flags, test_mask, NULL);
  fail_unless (gst_structure_get_flagset (s, "test-flagset", &out_flags,
          &out_mask));

  fail_unless (out_flags == test_flags);
  fail_unless (out_mask == test_mask);
  gst_structure_free (s);
}

GST_END_TEST;

static Suite *
gst_structure_suite (void)
{
  Suite *s = suite_create ("GstStructure");
  TCase *tc_chain = tcase_create ("general");

  suite_add_tcase (s, tc_chain);
  tcase_add_test (tc_chain, test_from_string_int);
  tcase_add_test (tc_chain, test_from_string_uint);
  tcase_add_test (tc_chain, test_from_string);
  tcase_add_test (tc_chain, test_to_string);
  tcase_add_test (tc_chain, test_to_from_string);
  tcase_add_test (tc_chain, test_to_from_string_tag_event);
  tcase_add_test (tc_chain, test_string_properties);
  tcase_add_test (tc_chain, test_complete_structure);
  tcase_add_test (tc_chain, test_structure_new);
  tcase_add_test (tc_chain, test_fixate);
  tcase_add_test (tc_chain, test_fixate_frac_list);
  tcase_add_test (tc_chain, test_is_subset_equal_array_list);
  tcase_add_test (tc_chain, test_is_subset_different_name);
  tcase_add_test (tc_chain, test_is_subset_superset_missing_fields);
  tcase_add_test (tc_chain, test_is_subset_superset_extra_fields);
  tcase_add_test (tc_chain, test_is_subset_superset_extra_values);
  tcase_add_test (tc_chain, test_structure_nested);
  tcase_add_test (tc_chain, test_structure_nested_from_and_to_string);
  tcase_add_test (tc_chain, test_vararg_getters);
  tcase_add_test (tc_chain, test_foreach);
  tcase_add_test (tc_chain, test_map_in_place);
  tcase_add_test (tc_chain, test_filter_and_map_in_place);
  tcase_add_test (tc_chain, test_flagset);
  return s;
}

GST_CHECK_MAIN (gst_structure);