test/api/test-object.c - third_party/harfbuzz - Git at Google

 /*
  * Copyright © 2011  Google, Inc.
  *
  *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
  * software and its documentation for any purpose, provided that the
  * above copyright notice and the following two paragraphs appear in
  * all copies of this software.
  *
  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  * DAMAGE.
  *
  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  *
  * Google Author(s): Behdad Esfahbod
  */

 #include "hb-test.h"

 /* Unit tests for hb-object-private.h */


 static void *
 create_blob (void)
 {
   static char data[] = "test data";
   return hb_blob_create (data, sizeof (data), HB_MEMORY_MODE_READONLY, NULL, NULL);
 }
 static void *
 create_blob_from_inert (void)
 {
   return hb_blob_create (NULL, 0, HB_MEMORY_MODE_DUPLICATE, NULL, NULL);
 }

 static void *
 create_buffer (void)
 {
   return hb_buffer_create ();
 }
 static void *
 create_buffer_from_inert (void)
 {
   return NULL;
 }

 static void *
 create_set (void)
 {
   return hb_set_create ();
 }
 static void *
 create_set_from_inert (void)
 {
   return NULL;
 }

 static void *
 create_face (void)
 {
   hb_blob_t *blob = (hb_blob_t *) create_blob ();
   hb_face_t *face = hb_face_create (blob, 0);
   hb_blob_destroy (blob);
   return face;
 }
 static void *
 create_face_from_inert (void)
 {
   return hb_face_create (hb_blob_get_empty (), 0);
 }

 static void *
 create_font (void)
 {
   hb_face_t *face = (hb_face_t *) create_face ();
   hb_font_t *font = hb_font_create (face);
   hb_face_destroy (face);
   return font;
 }
 static void *
 create_font_from_inert (void)
 {
   return hb_font_create (hb_face_get_empty ());
 }

 static void *
 create_font_funcs (void)
 {
   return hb_font_funcs_create ();
 }
 static void *
 create_font_funcs_from_inert (void)
 {
   return NULL;
 }

 static void *
 create_unicode_funcs (void)
 {
   return hb_unicode_funcs_create (NULL);
 }
 static void *
 create_unicode_funcs_from_inert (void)
 {
   return hb_unicode_funcs_create (hb_unicode_funcs_get_empty ());
 }


 typedef void     *(*create_func_t)         (void);
 typedef void     *(*reference_func_t)      (void *obj);
 typedef void      (*destroy_func_t)        (void *obj);
 typedef hb_bool_t (*set_user_data_func_t)  (void *obj, hb_user_data_key_t *key, void *data, hb_destroy_func_t destroy, hb_bool_t replace);
 typedef void *    (*get_user_data_func_t)  (void *obj, hb_user_data_key_t *key);
 typedef void      (*make_immutable_func_t) (void *obj);
 typedef hb_bool_t (*is_immutable_func_t)   (void *obj);

 typedef struct {
   create_func_t          create;
   create_func_t          create_from_inert;
   create_func_t          get_empty;
   reference_func_t       reference;
   destroy_func_t         destroy;
   set_user_data_func_t   set_user_data;
   get_user_data_func_t   get_user_data;
   make_immutable_func_t  make_immutable;
   is_immutable_func_t    is_immutable;
   const char            *name;
 } object_t;

 #define OBJECT_WITHOUT_IMMUTABILITY(name) \
   { \
     (create_func_t)         create_##name, \
     (create_func_t)         create_##name##_from_inert, \
     (create_func_t)         hb_##name##_get_empty, \
     (reference_func_t)      hb_##name##_reference, \
     (destroy_func_t)        hb_##name##_destroy, \
     (set_user_data_func_t)  hb_##name##_set_user_data, \
     (get_user_data_func_t)  hb_##name##_get_user_data, \
     (make_immutable_func_t) NULL, \
     (is_immutable_func_t)   NULL, \
     #name, \
   }
 #define OBJECT_WITH_IMMUTABILITY(name) \
   { \
     (create_func_t)         create_##name, \
     (create_func_t)         create_##name##_from_inert, \
     (create_func_t)         hb_##name##_get_empty, \
     (reference_func_t)      hb_##name##_reference, \
     (destroy_func_t)        hb_##name##_destroy, \
     (set_user_data_func_t)  hb_##name##_set_user_data, \
     (get_user_data_func_t)  hb_##name##_get_user_data, \
     (make_immutable_func_t) hb_##name##_make_immutable, \
     (is_immutable_func_t)   hb_##name##_is_immutable, \
     #name, \
   }
 static const object_t objects[] =
 {
   OBJECT_WITHOUT_IMMUTABILITY (buffer),
   OBJECT_WITHOUT_IMMUTABILITY (set),
   OBJECT_WITH_IMMUTABILITY (blob),
   OBJECT_WITH_IMMUTABILITY (face),
   OBJECT_WITH_IMMUTABILITY (font),
   OBJECT_WITH_IMMUTABILITY (font_funcs),
   OBJECT_WITH_IMMUTABILITY (unicode_funcs)
 };
 #undef OBJECT


 #define MAGIC0 0x12345678
 #define MAGIC1 0x76543210

 typedef struct {
   int value;
   gboolean freed;
 } data_t;

 static int global_data;

 static void global_free_up (void *p G_GNUC_UNUSED)
 {
   global_data++;
 }

 static void free_up0 (void *p)
 {
   data_t *data = (data_t *) p;

   g_assert_cmphex (data->value, ==, MAGIC0);
   g_assert (!data->freed);
   data->freed = TRUE;
 }

 static void free_up1 (void *p)
 {
   data_t *data = (data_t *) p;

   g_assert_cmphex (data->value, ==, MAGIC1);
   g_assert (!data->freed);
   data->freed = TRUE;
 }


 typedef struct {
   const object_t *klass;
   void *object;
   hb_user_data_key_t key;
 } deadlock_test_t;

 static void free_deadlock_test (void *p)
 {
   deadlock_test_t *t = (deadlock_test_t *) p;

   g_assert (NULL == t->klass->get_user_data (t->object, &t->key));
 }


 static void
 test_object (void)
 {
   unsigned int i;

   for (i = 0; i < G_N_ELEMENTS (objects); i++) {
     const object_t *o = &objects[i];
     void *obj;
     hb_user_data_key_t key[1001];

     {
       unsigned int j;
       data_t data[1000] = {{MAGIC0, FALSE}, {MAGIC1, FALSE}};
       deadlock_test_t deadlock_test;

       g_test_message ("Testing object %s", o->name);

       g_test_message ("->create()");
       obj = o->create ();
       g_assert (obj);

       g_assert (obj == o->reference (obj));
       o->destroy (obj);

       if (o->is_immutable)
 	g_assert (!o->is_immutable (obj));

       g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0, TRUE));
       g_assert (o->get_user_data (obj, &key[0]) == &data[0]);

       if (o->is_immutable) {
 	o->make_immutable (obj);
 	g_assert (o->is_immutable (obj));
       }

       /* Should still work even if object is made immutable */
       g_assert (o->set_user_data (obj, &key[1], &data[1], free_up1, TRUE));
       g_assert (o->get_user_data (obj, &key[1]) == &data[1]);

       g_assert (!o->set_user_data (obj, NULL, &data[0], free_up0, TRUE));
       g_assert (o->get_user_data (obj, &key[0]) == &data[0]);
       g_assert (o->set_user_data (obj, &key[0], &data[1], NULL, TRUE));
       g_assert (data[0].freed);
       g_assert (o->get_user_data (obj, &key[0]) == &data[1]);
       g_assert (!data[1].freed);

       data[0].freed = FALSE;
       g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0, TRUE));
       g_assert (!data[0].freed);
       g_assert (o->set_user_data (obj, &key[0], NULL, NULL, TRUE));
       g_assert (data[0].freed);

       data[0].freed = FALSE;
       global_data = 0;
       g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0, TRUE));
       g_assert (!o->set_user_data (obj, &key[0], &data[0], free_up0, FALSE));
       g_assert_cmpuint (global_data, ==, 0);
       g_assert (o->set_user_data (obj, &key[0], NULL, global_free_up, TRUE));
       g_assert_cmpuint (global_data, ==, 0);
       g_assert (o->set_user_data (obj, &key[0], NULL, NULL, TRUE));
       g_assert_cmpuint (global_data, ==, 1);

       global_data = 0;
       for (j = 2; j < 1000; j++)
 	g_assert (o->set_user_data (obj, &key[j], &data[j], global_free_up, TRUE));
       for (j = 2; j < 1000; j++)
 	g_assert (o->get_user_data (obj, &key[j]) == &data[j]);
       for (j = 100; j < 1000; j++)
 	g_assert (o->set_user_data (obj, &key[j], NULL, NULL, TRUE));
       for (j = 2; j < 100; j++)
 	g_assert (o->get_user_data (obj, &key[j]) == &data[j]);
       for (j = 100; j < 1000; j++)
 	g_assert (!o->get_user_data (obj, &key[j]));
       g_assert_cmpuint (global_data, ==, 900);

       /* Test set_user_data where the destroy() func calls user_data functions.
        * Make sure it doesn't deadlock or corrupt memory. */
       deadlock_test.klass = o;
       deadlock_test.object = obj;
       g_assert (o->set_user_data (obj, &deadlock_test.key, &deadlock_test, free_deadlock_test, TRUE));
       g_assert (o->set_user_data (obj, &deadlock_test.key, NULL, NULL, TRUE));

       g_assert (!data[1].freed);
       o->destroy (obj);
       g_assert (data[0].freed);
       g_assert (data[1].freed);
       g_assert_cmpuint (global_data, ==, 1000-2);
     }

     {
       data_t data[2] = {{MAGIC0, FALSE}, {MAGIC1, FALSE}};

       g_test_message ("->get_empty()");
       obj = o->get_empty ();
       g_assert (obj);

       g_assert (obj == o->reference (obj));
       o->destroy (obj);

       if (o->is_immutable)
 	g_assert (o->is_immutable (obj));

       g_assert (!o->set_user_data (obj, &key[0], &data[0], free_up0, TRUE));
       g_assert (!o->get_user_data (obj, &key[0]));

       o->destroy (obj);
       o->destroy (obj);
       o->destroy (obj);
       o->destroy (obj);
       o->destroy (obj);

       g_assert (!data[0].freed);
     }

     {
       data_t data[2] = {{MAGIC0, FALSE}, {MAGIC1, FALSE}};

       g_test_message ("->create_from_inert()");
       obj = o->create_from_inert ();
       if (!obj)
 	continue;
       if (obj == o->get_empty ())
 	continue; /* Tested already */

       g_assert (obj == o->reference (obj));
       o->destroy (obj);

       if (o->is_immutable)
 	g_assert (!o->is_immutable (obj));

       g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0, TRUE));
       g_assert (o->get_user_data (obj, &key[0]));

       o->destroy (obj);

       g_assert (data[0].freed);
     }
   }
 }


 int
 main (int argc, char **argv)
 {
   hb_test_init (&argc, &argv);

   hb_test_add (test_object);

   return hb_test_run ();
 }
	/*
	* Copyright © 2011 Google, Inc.
	*
	* This is part of HarfBuzz, a text shaping library.
	*
	* Permission is hereby granted, without written agreement and without
	* license or royalty fees, to use, copy, modify, and distribute this
	* software and its documentation for any purpose, provided that the
	* above copyright notice and the following two paragraphs appear in
	* all copies of this software.
	*
	* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
	* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
	* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
	* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
	* DAMAGE.
	*
	* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
	* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
	* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
	* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
	* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
	*
	* Google Author(s): Behdad Esfahbod
	*/

	#include "hb-test.h"

	/* Unit tests for hb-object-private.h */


	static void *
	create_blob (void)
	{
	static char data[] = "test data";
	return hb_blob_create (data, sizeof (data), HB_MEMORY_MODE_READONLY, NULL, NULL);
	}
	static void *
	create_blob_from_inert (void)
	{
	return hb_blob_create (NULL, 0, HB_MEMORY_MODE_DUPLICATE, NULL, NULL);
	}

	static void *
	create_buffer (void)
	{
	return hb_buffer_create ();
	}
	static void *
	create_buffer_from_inert (void)
	{
	return NULL;
	}

	static void *
	create_set (void)
	{
	return hb_set_create ();
	}
	static void *
	create_set_from_inert (void)
	{
	return NULL;
	}

	static void *
	create_face (void)
	{
	hb_blob_t blob = (hb_blob_t ) create_blob ();
	hb_face_t *face = hb_face_create (blob, 0);
	hb_blob_destroy (blob);
	return face;
	}
	static void *
	create_face_from_inert (void)
	{
	return hb_face_create (hb_blob_get_empty (), 0);
	}

	static void *
	create_font (void)
	{
	hb_face_t face = (hb_face_t ) create_face ();
	hb_font_t *font = hb_font_create (face);
	hb_face_destroy (face);
	return font;
	}
	static void *
	create_font_from_inert (void)
	{
	return hb_font_create (hb_face_get_empty ());
	}

	static void *
	create_font_funcs (void)
	{
	return hb_font_funcs_create ();
	}
	static void *
	create_font_funcs_from_inert (void)
	{
	return NULL;
	}

	static void *
	create_unicode_funcs (void)
	{
	return hb_unicode_funcs_create (NULL);
	}
	static void *
	create_unicode_funcs_from_inert (void)
	{
	return hb_unicode_funcs_create (hb_unicode_funcs_get_empty ());
	}



	typedef void (create_func_t) (void);
	typedef void (reference_func_t) (void *obj);
	typedef void (destroy_func_t) (void obj);
	typedef hb_bool_t (set_user_data_func_t) (void obj, hb_user_data_key_t key, void data, hb_destroy_func_t destroy, hb_bool_t replace);
	typedef void * (get_user_data_func_t) (void obj, hb_user_data_key_t *key);
	typedef void (make_immutable_func_t) (void obj);
	typedef hb_bool_t (is_immutable_func_t) (void obj);

	typedef struct {
	create_func_t create;
	create_func_t create_from_inert;
	create_func_t get_empty;
	reference_func_t reference;
	destroy_func_t destroy;
	set_user_data_func_t set_user_data;
	get_user_data_func_t get_user_data;
	make_immutable_func_t make_immutable;
	is_immutable_func_t is_immutable;
	const char *name;
	} object_t;

	#define OBJECT_WITHOUT_IMMUTABILITY(name) \
	{ \
	(create_func_t) create_##name, \
	(create_func_t) create_##name##_from_inert, \
	(create_func_t) hb_##name##_get_empty, \
	(reference_func_t) hb_##name##_reference, \
	(destroy_func_t) hb_##name##_destroy, \
	(set_user_data_func_t) hb_##name##_set_user_data, \
	(get_user_data_func_t) hb_##name##_get_user_data, \
	(make_immutable_func_t) NULL, \
	(is_immutable_func_t) NULL, \
	#name, \
	}
	#define OBJECT_WITH_IMMUTABILITY(name) \
	{ \
	(create_func_t) create_##name, \
	(create_func_t) create_##name##_from_inert, \
	(create_func_t) hb_##name##_get_empty, \
	(reference_func_t) hb_##name##_reference, \
	(destroy_func_t) hb_##name##_destroy, \
	(set_user_data_func_t) hb_##name##_set_user_data, \
	(get_user_data_func_t) hb_##name##_get_user_data, \
	(make_immutable_func_t) hb_##name##_make_immutable, \
	(is_immutable_func_t) hb_##name##_is_immutable, \
	#name, \
	}
	static const object_t objects[] =
	{
	OBJECT_WITHOUT_IMMUTABILITY (buffer),
	OBJECT_WITHOUT_IMMUTABILITY (set),
	OBJECT_WITH_IMMUTABILITY (blob),
	OBJECT_WITH_IMMUTABILITY (face),
	OBJECT_WITH_IMMUTABILITY (font),
	OBJECT_WITH_IMMUTABILITY (font_funcs),
	OBJECT_WITH_IMMUTABILITY (unicode_funcs)
	};
	#undef OBJECT


	#define MAGIC0 0x12345678
	#define MAGIC1 0x76543210

	typedef struct {
	int value;
	gboolean freed;
	} data_t;

	static int global_data;

	static void global_free_up (void *p G_GNUC_UNUSED)
	{
	global_data++;
	}

	static void free_up0 (void *p)
	{
	data_t data = (data_t ) p;

	g_assert_cmphex (data->value, ==, MAGIC0);
	g_assert (!data->freed);
	data->freed = TRUE;
	}

	static void free_up1 (void *p)
	{
	data_t data = (data_t ) p;

	g_assert_cmphex (data->value, ==, MAGIC1);
	g_assert (!data->freed);
	data->freed = TRUE;
	}


	typedef struct {
	const object_t *klass;
	void *object;
	hb_user_data_key_t key;
	} deadlock_test_t;

	static void free_deadlock_test (void *p)
	{
	deadlock_test_t t = (deadlock_test_t ) p;

	g_assert (NULL == t->klass->get_user_data (t->object, &t->key));
	}


	static void
	test_object (void)
	{
	unsigned int i;

	for (i = 0; i < G_N_ELEMENTS (objects); i++) {
	const object_t *o = &objects[i];
	void *obj;
	hb_user_data_key_t key[1001];

	{
	unsigned int j;
	data_t data[1000] = {{MAGIC0, FALSE}, {MAGIC1, FALSE}};
	deadlock_test_t deadlock_test;

	g_test_message ("Testing object %s", o->name);

	g_test_message ("->create()");
	obj = o->create ();
	g_assert (obj);

	g_assert (obj == o->reference (obj));
	o->destroy (obj);

	if (o->is_immutable)
	g_assert (!o->is_immutable (obj));

	g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0, TRUE));
	g_assert (o->get_user_data (obj, &key[0]) == &data[0]);

	if (o->is_immutable) {
	o->make_immutable (obj);
	g_assert (o->is_immutable (obj));
	}

	/* Should still work even if object is made immutable */
	g_assert (o->set_user_data (obj, &key[1], &data[1], free_up1, TRUE));
	g_assert (o->get_user_data (obj, &key[1]) == &data[1]);

	g_assert (!o->set_user_data (obj, NULL, &data[0], free_up0, TRUE));
	g_assert (o->get_user_data (obj, &key[0]) == &data[0]);
	g_assert (o->set_user_data (obj, &key[0], &data[1], NULL, TRUE));
	g_assert (data[0].freed);
	g_assert (o->get_user_data (obj, &key[0]) == &data[1]);
	g_assert (!data[1].freed);

	data[0].freed = FALSE;
	g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0, TRUE));
	g_assert (!data[0].freed);
	g_assert (o->set_user_data (obj, &key[0], NULL, NULL, TRUE));
	g_assert (data[0].freed);

	data[0].freed = FALSE;
	global_data = 0;
	g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0, TRUE));
	g_assert (!o->set_user_data (obj, &key[0], &data[0], free_up0, FALSE));
	g_assert_cmpuint (global_data, ==, 0);
	g_assert (o->set_user_data (obj, &key[0], NULL, global_free_up, TRUE));
	g_assert_cmpuint (global_data, ==, 0);
	g_assert (o->set_user_data (obj, &key[0], NULL, NULL, TRUE));
	g_assert_cmpuint (global_data, ==, 1);

	global_data = 0;
	for (j = 2; j < 1000; j++)
	g_assert (o->set_user_data (obj, &key[j], &data[j], global_free_up, TRUE));
	for (j = 2; j < 1000; j++)
	g_assert (o->get_user_data (obj, &key[j]) == &data[j]);
	for (j = 100; j < 1000; j++)
	g_assert (o->set_user_data (obj, &key[j], NULL, NULL, TRUE));
	for (j = 2; j < 100; j++)
	g_assert (o->get_user_data (obj, &key[j]) == &data[j]);
	for (j = 100; j < 1000; j++)
	g_assert (!o->get_user_data (obj, &key[j]));
	g_assert_cmpuint (global_data, ==, 900);

	/* Test set_user_data where the destroy() func calls user_data functions.
	* Make sure it doesn't deadlock or corrupt memory. */
	deadlock_test.klass = o;
	deadlock_test.object = obj;
	g_assert (o->set_user_data (obj, &deadlock_test.key, &deadlock_test, free_deadlock_test, TRUE));
	g_assert (o->set_user_data (obj, &deadlock_test.key, NULL, NULL, TRUE));

	g_assert (!data[1].freed);
	o->destroy (obj);
	g_assert (data[0].freed);
	g_assert (data[1].freed);
	g_assert_cmpuint (global_data, ==, 1000-2);
	}

	{
	data_t data[2] = {{MAGIC0, FALSE}, {MAGIC1, FALSE}};

	g_test_message ("->get_empty()");
	obj = o->get_empty ();
	g_assert (obj);

	g_assert (obj == o->reference (obj));
	o->destroy (obj);

	if (o->is_immutable)
	g_assert (o->is_immutable (obj));

	g_assert (!o->set_user_data (obj, &key[0], &data[0], free_up0, TRUE));
	g_assert (!o->get_user_data (obj, &key[0]));

	o->destroy (obj);
	o->destroy (obj);
	o->destroy (obj);
	o->destroy (obj);
	o->destroy (obj);

	g_assert (!data[0].freed);
	}

	{
	data_t data[2] = {{MAGIC0, FALSE}, {MAGIC1, FALSE}};

	g_test_message ("->create_from_inert()");
	obj = o->create_from_inert ();
	if (!obj)
	continue;
	if (obj == o->get_empty ())
	continue; /* Tested already */

	g_assert (obj == o->reference (obj));
	o->destroy (obj);

	if (o->is_immutable)
	g_assert (!o->is_immutable (obj));

	g_assert (o->set_user_data (obj, &key[0], &data[0], free_up0, TRUE));
	g_assert (o->get_user_data (obj, &key[0]));

	o->destroy (obj);

	g_assert (data[0].freed);
	}
	}
	}


	int
	main (int argc, char **argv)
	{
	hb_test_init (&argc, &argv);

	hb_test_add (test_object);

	return hb_test_run ();
	}