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Test for g_hash_table_insert() corrupting sets

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https://bugzilla.gnome.org/show_bug.cgi?id=692815
This commit is contained in:
Will Thompson 2013-01-29 16:09:40 +00:00 committed by Matthias Clasen
parent bb1df4d01b
commit a809650a06
1 changed files with 50 additions and 0 deletions
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50
glib/tests/hash.c
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@ -1215,6 +1215,55 @@ test_iter_replace (void)
g_hash_table_unref (h);
}
static void
replace_first_character (gchar *string)
{
string[0] = 'b';
}
static void
test_set_insert_corruption (void)
{
GHashTable *hash_table =
g_hash_table_new_full (g_str_hash, g_str_equal,
(GDestroyNotify) replace_first_character, NULL);
GHashTableIter iter;
gchar a[] = "foo";
gchar b[] = "foo";
gpointer key, value;
g_test_bug ("692815");
g_hash_table_insert (hash_table, a, a);
g_assert (g_hash_table_contains (hash_table, "foo"));
g_hash_table_insert (hash_table, b, b);
g_assert_cmpuint (g_hash_table_size (hash_table), ==, 1);
g_hash_table_iter_init (&iter, hash_table);
if (!g_hash_table_iter_next (&iter, &key, &value))
g_assert_not_reached();
/* per the documentation to g_hash_table_insert(), 'b' has now been freed,
* and the sole key in 'hash_table' should be 'a'.
*/
g_assert (key != b);
g_assert (key == a);
g_assert_cmpstr (b, ==, "boo");
/* g_hash_table_insert() also says that the value should now be 'b',
* which is probably not what the caller intended but is precisely what they
* asked for.
*/
g_assert (value == b);
/* even though the hash has now been de-set-ified: */
g_assert (g_hash_table_contains (hash_table, "foo"));
g_hash_table_unref (hash_table);
}
int
main (int argc, char *argv[])
{
@ -1241,6 +1290,7 @@ main (int argc, char *argv[])
g_test_add_func ("/hash/destroy-modify", test_destroy_modify);
g_test_add_func ("/hash/consistency", test_internal_consistency);
g_test_add_func ("/hash/iter-replace", test_iter_replace);
g_test_add_func ("/hash/set-insert-corruption", test_set_insert_corruption);
return g_test_run ();