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/* refstring.c: Reference counted strings
*
* Copyright 2018 Emmanuele Bassi
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <glib.h>
#include <string.h>
/* test_refstring_base: Test the base API of GRefString */
static void
test_refstring_base (void)
{
char *s = g_ref_string_new ("hello, world");
g_test_message ("s = '%s' (%p)", s, s);
g_assert_cmpint (strcmp (s, "hello, world"), ==, 0);
g_assert_cmpint (strlen (s), ==, strlen ("hello, world"));
g_assert_cmpuint (g_ref_string_length (s), ==, strlen ("hello, world"));
g_assert_true (g_ref_string_acquire (s) == s);
g_ref_string_release (s);
g_ref_string_release (s);
}
/* test_refstring_length: Test the _len variant */
static void
test_refstring_length (void)
{
char buf[] = {'h', 'e', 'l', 'l', 'o'}; /* no NUL */
char *s = g_ref_string_new_len (buf, 5);
g_assert_cmpstr (s, ==, "hello");
g_assert_cmpint (strlen (s), ==, strlen ("hello"));
g_assert_cmpuint (g_ref_string_length (s), ==, strlen ("hello"));
g_ref_string_release (s);
}
/* test_refstring_length: Test the _len variant with no size set */
static void
test_refstring_length_auto (void)
{
char *s = g_ref_string_new_len ("hello", -1);
g_assert_cmpstr (s, ==, "hello");
g_assert_cmpuint (g_ref_string_length (s), ==, strlen ("hello"));
g_ref_string_release (s);
}
/* test_refstring_length_nuls: Test the _len variant */
static void
test_refstring_length_nuls (void)
{
char buf[] = {'h', 'e', '\0', 'l', 'o'}; /* no NUL */
char *s = g_ref_string_new_len (buf, 5);
g_assert_cmpstr (s, ==, "he");
g_assert_cmpint (memcmp (s, "he\0lo", 5), ==, 0);
g_assert_cmpuint (g_ref_string_length (s), ==, 5);
g_ref_string_release (s);
}
/* test_refstring_intern: Test the interning API of GRefString */
static void
test_refstring_intern (void)
{
char *s = g_ref_string_new_intern ("hello, world");
char *p;
g_test_message ("s = '%s' (%p)", s, s);
g_assert_cmpstr (s, ==, "hello, world");
p = g_ref_string_new_intern ("hello, world");
g_test_message ("p = s = '%s' (%p)", p, p);
g_assert_true (s == p);
g_test_message ("releasing p[%p] ('%s')", p, p);
g_ref_string_release (p);
p = g_ref_string_new_intern ("goodbye, world");
g_test_message ("p = '%s' (%p)", p, p);
g_assert_false (s == p);
g_test_message ("releasing p[%p] ('%s')", p, p);
g_ref_string_release (p);
g_test_message ("releasing s[%p] ('%s')", s, s);
g_ref_string_release (s);
}
static void
test_refstring_hash_equal (void)
{
GHashTable *ht = g_hash_table_new (g_str_hash, (GEqualFunc)g_ref_string_equal);
char *ref1 = g_ref_string_new ("string one");
char *ref2 = g_ref_string_new ("string 2");
char *ref3 = g_ref_string_new ("string one");
char *ref4 = g_ref_string_new ("string two");
g_test_summary ("Test g_ref_string_equal() in GHashTable");
g_hash_table_add (ht, ref1);
g_assert_true (g_hash_table_contains (ht, ref1));
g_assert_false (g_hash_table_contains (ht, ref2));
g_assert_true (g_hash_table_contains (ht, ref3));
g_assert_false (g_hash_table_contains (ht, ref4));
g_hash_table_unref (ht);
g_ref_string_release (ref1);
g_ref_string_release (ref2);
g_ref_string_release (ref3);
g_ref_string_release (ref4);
}
static void
test_refstring_equal (void)
{
char *ref1 = g_ref_string_new ("string one");
char *ref2 = g_ref_string_new ("string 2");
char *ref3 = g_ref_string_new ("string one");
g_test_summary ("Test g_ref_string_equal() standalone");
g_assert_true (g_ref_string_equal (ref1, ref1));
g_assert_false (g_ref_string_equal (ref1, ref2));
g_assert_true (g_ref_string_equal (ref1, ref3));
g_ref_string_release (ref1);
g_ref_string_release (ref2);
g_ref_string_release (ref3);
}
static gpointer
intern_ref_unref (gpointer data)
{
for (int i = 0; i < 1000000; i++)
{
char *s = g_ref_string_new_intern ("test!");
g_ref_string_release (s);
}
return NULL;
}
/* test_refstring_intern: Test that interning of GRefString is thread-safe */
static void
test_refstring_intern_thread_safety (void)
{
GThread *a, *b;
a = g_thread_new (NULL, intern_ref_unref, NULL);
b = g_thread_new (NULL, intern_ref_unref, NULL);
g_thread_join (a);
g_thread_join (b);
}
int
main (int argc,
char *argv[])
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/refstring/base", test_refstring_base);
g_test_add_func ("/refstring/length", test_refstring_length);
g_test_add_func ("/refstring/length-auto", test_refstring_length_auto);
g_test_add_func ("/refstring/length-nuls", test_refstring_length_nuls);
g_test_add_func ("/refstring/intern", test_refstring_intern);
g_test_add_func ("/refstring/hash_equal", test_refstring_hash_equal);
g_test_add_func ("/refstring/equal", test_refstring_equal);
g_test_add_func ("/refstring/intern-thread-safety", test_refstring_intern_thread_safety);
return g_test_run ();
}
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