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Merge pull request #930 from libexpat/tests-cover-indirect-entity-recursion

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Tests: Cover indirect entity recursion
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Sebastian Pipping 2024-11-26 20:14:00 +01:00 • committed by GitHub
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1 changed files with 74 additions and 0 deletions
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74
expat/tests/basic_tests.c
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@ -1202,6 +1202,79 @@ START_TEST(test_wfc_no_recursive_entity_refs) {
}
END_TEST
START_TEST(test_no_indirectly_recursive_entity_refs) {
struct TestCase {
const char *doc;
bool usesParameterEntities;
};
const struct TestCase cases[] = {
// general entity + character data
{"<!DOCTYPE a [\n"
" <!ENTITY e1 '&e2;'>\n"
" <!ENTITY e2 '&e1;'>\n"
"]><a>&e2;</a>\n",
false},
// general entity + attribute value
{"<!DOCTYPE a [\n"
" <!ENTITY e1 '&e2;'>\n"
" <!ENTITY e2 '&e1;'>\n"
"]><a k1='&e2;' />\n",
false},
// parameter entity
{"<!DOCTYPE doc [\n"
" <!ENTITY % p1 '&#37;p2;'>\n"
" <!ENTITY % p2 '&#37;p1;'>\n"
" <!ENTITY % define_g \"<!ENTITY g '&#37;p2;'>\">\n"
" %define_g;\n"
"]>\n"
"<doc/>\n",
true},
};
for (size_t i = 0; i < sizeof(cases) / sizeof(cases[0]); i++) {
const char *const doc = cases[i].doc;
const bool usesParameterEntities = cases[i].usesParameterEntities;
set_subtest("[%i] %s", (int)i, doc);
#ifdef XML_DTD // both GE and DTD
const bool rejection_expected = true;
#elif XML_GE == 1 // GE but not DTD
const bool rejection_expected = ! usesParameterEntities;
#else // neither DTD nor GE
const bool rejection_expected = false;
#endif
XML_Parser parser = XML_ParserCreate(NULL);
#ifdef XML_DTD
if (usesParameterEntities) {
assert_true(
XML_SetParamEntityParsing(parser, XML_PARAM_ENTITY_PARSING_ALWAYS)
== 1);
}
#else
UNUSED_P(usesParameterEntities);
#endif // XML_DTD
const enum XML_Status status
= _XML_Parse_SINGLE_BYTES(parser, doc, (int)strlen(doc),
/*isFinal*/ XML_TRUE);
if (rejection_expected) {
assert_true(status == XML_STATUS_ERROR);
assert_true(XML_GetErrorCode(parser) == XML_ERROR_RECURSIVE_ENTITY_REF);
} else {
assert_true(status == XML_STATUS_OK);
}
XML_ParserFree(parser);
}
}
END_TEST
START_TEST(test_recursive_external_parameter_entity_2) {
struct TestCase {
const char *doc;
@ -5996,6 +6069,7 @@ make_basic_test_case(Suite *s) {
tcase_add_test(tc_basic, test_not_standalone_handler_reject);
tcase_add_test(tc_basic, test_not_standalone_handler_accept);
tcase_add_test__if_xml_ge(tc_basic, test_wfc_no_recursive_entity_refs);
tcase_add_test(tc_basic, test_no_indirectly_recursive_entity_refs);
tcase_add_test__ifdef_xml_dtd(tc_basic, test_ext_entity_invalid_parse);
tcase_add_test__if_xml_ge(tc_basic, test_dtd_default_handling);
tcase_add_test(tc_basic, test_dtd_attr_handling);