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Test long attribute with a dodgy reallocator

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This tests a specific code path through parameter substitution, and
requires the attribute value to come out to 1024 bytes PLUS a terminal
NUL to trigger growth of the string pool in use.  The NUL is added
separately, and it is that string append that we are triggering on.
This commit is contained in:
Rhodri James 2017-03-17 16:40:52 +00:00 committed by Sebastian Pipping
parent bf27884912
commit 02dfd4b377
1 changed files with 42 additions and 0 deletions
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42
expat/tests/runtests.c
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@ -7306,6 +7306,47 @@ START_TEST(test_alloc_comment_in_epilog)
#undef MAX_ALLOC_COUNT
END_TEST
START_TEST(test_alloc_realloc_long_attribute_value)
{
const char *text =
"<!DOCTYPE doc [<!ENTITY foo '"
/* Each line is 64 characters */
"This entity will be substituted as an attribute value, and is "
"calculated to be exactly long enough that the terminating NUL "
"that the library adds internally will trigger the string pool to"
"grow. GHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"ABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOPABCDEFGHIJKLMNOP"
"'>]>\n"
"<doc a='&foo;'></doc>";
int i;
#define MAX_REALLOC_COUNT 10
for (i = 0; i < MAX_REALLOC_COUNT; i++) {
reallocation_count = i;
if (_XML_Parse_SINGLE_BYTES(parser, text, strlen(text),
XML_TRUE) != XML_STATUS_ERROR)
break;
XML_ParserReset(parser, NULL);
}
if (i == 0)
fail("Parse succeeded despite failing reallocator");
if (i == MAX_REALLOC_COUNT)
fail("Parse failed at maximum reallocation count");
}
#undef MAX_REALLOC_COUNT
END_TEST
static void
nsalloc_setup(void)
@ -8104,6 +8145,7 @@ make_suite(void)
tcase_add_test(tc_alloc, test_alloc_realloc_group_choice);
tcase_add_test(tc_alloc, test_alloc_pi_in_epilog);
tcase_add_test(tc_alloc, test_alloc_comment_in_epilog);
tcase_add_test(tc_alloc, test_alloc_realloc_long_attribute_value);
suite_add_tcase(s, tc_nsalloc);
tcase_add_checked_fixture(tc_nsalloc, nsalloc_setup, nsalloc_teardown);