--- /dev/null
+#include <check.h>
+#include <stdlib.h>
+
+#include "expat.h"
+
+
+static XML_Parser parser;
+
+
+static void
+basic_setup(void)
+{
+ parser = XML_ParserCreate("us-ascii");
+}
+
+static void
+basic_teardown(void)
+{
+ if (parser != NULL) {
+ XML_ParserFree(parser);
+ }
+}
+
+
+START_TEST(test_nul_byte)
+{
+ char *text = "<doc>\0</doc>";
+
+ if (parser == NULL)
+ fail("Parser not created.");
+
+ /* test that a NUL byte (in US-ASCII data) is an error */
+ if (XML_Parse(parser, text, 12, 1))
+ fail("Parser did not report error on NUL-byte.");
+ fail_unless(XML_GetErrorCode(parser) == XML_ERROR_INVALID_TOKEN,
+ "Got wrong error code for NUL-byte in US-ASCII encoding.");
+}
+END_TEST
+
+
+START_TEST(test_u0000_char)
+{
+ char *text = "<doc>�</doc>";
+
+ if (parser == NULL)
+ fail("Parser not created.");
+
+ /* test that a NUL byte (in US-ASCII data) is an error */
+ if (XML_Parse(parser, text, strlen(text), 1))
+ fail("Parser did not report error on NUL-byte.");
+ fail_unless(XML_GetErrorCode(parser) == XML_ERROR_BAD_CHAR_REF,
+ "Got wrong error code for �.");
+}
+END_TEST
+
+
+static Suite *
+make_basic_suite(void)
+{
+ Suite *s = suite_create("basic");
+ TCase *tc_nulls = tcase_create("null characters");
+
+ suite_add_tcase(s, tc_nulls);
+ tcase_set_fixture(tc_nulls, basic_setup, basic_teardown);
+ tcase_add_test(tc_nulls, test_nul_byte);
+ tcase_add_test(tc_nulls, test_u0000_char);
+
+ return s;
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ int nf;
+ int verbosity = CRNORMAL;
+ Suite *s = make_basic_suite();
+ SRunner *sr = srunner_create(s);
+
+ if (argc >= 2) {
+ char *opt = argv[1];
+ if (strcmp(opt, "-v") == 0 || strcmp(opt, "--verbose") == 0)
+ verbosity = CRVERBOSE;
+ else if (strcmp(opt, "-q") == 0 || strcmp(opt, "--quiet") == 0)
+ verbosity = CRSILENT;
+ }
+ srunner_run_all(sr, verbosity);
+ nf = srunner_ntests_failed(sr);
+ srunner_free(sr);
+ suite_free(s);
+
+ return (nf == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
+}