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-rw-r--r--netwerk/srtp/src/test/cutest.h713
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diff --git a/netwerk/srtp/src/test/cutest.h b/netwerk/srtp/src/test/cutest.h
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+++ b/netwerk/srtp/src/test/cutest.h
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+/*
+ * CUTest -- C/C++ Unit Test facility
+ * <http://github.com/mity/cutest>
+ *
+ * Copyright (c) 2013-2017 Martin Mitas
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef CUTEST_H__
+#define CUTEST_H__
+
+/************************
+ *** Public interface ***
+ ************************/
+
+/* By default, <cutest.h> provides the main program entry point (function
+ * main()). However, if the test suite is composed of multiple source files
+ * which include <cutest.h>, then this causes a problem of multiple main()
+ * definitions. To avoid this problem, #define macro TEST_NO_MAIN in all
+ * compilation units but one.
+ */
+
+/* Macro to specify list of unit tests in the suite.
+ * The unit test implementation MUST provide list of unit tests it implements
+ * with this macro:
+ *
+ * TEST_LIST = {
+ * { "test1_name", test1_func_ptr },
+ * { "test2_name", test2_func_ptr },
+ * ...
+ * { 0 }
+ * };
+ *
+ * The list specifies names of each test (must be unique) and pointer to
+ * a function implementing it. The function does not take any arguments
+ * and has no return values, i.e. every test function has tp be compatible
+ * with this prototype:
+ *
+ * void test_func(void);
+ */
+#define TEST_LIST const struct test__ test_list__[]
+
+/* Macros for testing whether an unit test succeeds or fails. These macros
+ * can be used arbitrarily in functions implementing the unit tests.
+ *
+ * If any condition fails throughout execution of a test, the test fails.
+ *
+ * TEST_CHECK takes only one argument (the condition), TEST_CHECK_ allows
+ * also to specify an error message to print out if the condition fails.
+ * (It expects printf-like format string and its parameters). The macros
+ * return non-zero (condition passes) or 0 (condition fails).
+ *
+ * That can be useful when more conditions should be checked only if some
+ * preceding condition passes, as illustrated in this code snippet:
+ *
+ * SomeStruct* ptr = allocate_some_struct();
+ * if(TEST_CHECK(ptr != NULL)) {
+ * TEST_CHECK(ptr->member1 < 100);
+ * TEST_CHECK(ptr->member2 > 200);
+ * }
+ */
+#define TEST_CHECK_(cond, ...) \
+ test_check__((cond), __FILE__, __LINE__, __VA_ARGS__)
+#define TEST_CHECK(cond) test_check__((cond), __FILE__, __LINE__, "%s", #cond)
+
+/**********************
+ *** Implementation ***
+ **********************/
+
+/* The unit test files should not rely on anything below. */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if defined(unix) || defined(__unix__) || defined(__unix) || defined(__APPLE__)
+#define CUTEST_UNIX__ 1
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+#endif
+
+#if defined(_WIN32) || defined(__WIN32__) || defined(__WINDOWS__)
+#define CUTEST_WIN__ 1
+#include <windows.h>
+#include <io.h>
+#endif
+
+#ifdef __cplusplus
+#include <exception>
+#endif
+
+/* Note our global private identifiers end with '__' to mitigate risk of clash
+ * with the unit tests implementation. */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct test__ {
+ const char *name;
+ void (*func)(void);
+};
+
+extern const struct test__ test_list__[];
+
+int test_check__(int cond, const char *file, int line, const char *fmt, ...);
+
+#ifndef TEST_NO_MAIN
+
+static char *test_argv0__ = NULL;
+static int test_count__ = 0;
+static int test_no_exec__ = 0;
+static int test_no_summary__ = 0;
+static int test_skip_mode__ = 0;
+
+static int test_stat_failed_units__ = 0;
+static int test_stat_run_units__ = 0;
+
+static const struct test__ *test_current_unit__ = NULL;
+static int test_current_already_logged__ = 0;
+static int test_verbose_level__ = 2;
+static int test_current_failures__ = 0;
+static int test_colorize__ = 0;
+
+#define CUTEST_COLOR_DEFAULT__ 0
+#define CUTEST_COLOR_GREEN__ 1
+#define CUTEST_COLOR_RED__ 2
+#define CUTEST_COLOR_DEFAULT_INTENSIVE__ 3
+#define CUTEST_COLOR_GREEN_INTENSIVE__ 4
+#define CUTEST_COLOR_RED_INTENSIVE__ 5
+
+static size_t test_print_in_color__(int color, const char *fmt, ...)
+{
+ va_list args;
+ char buffer[256];
+ size_t n;
+
+ va_start(args, fmt);
+ vsnprintf(buffer, sizeof(buffer), fmt, args);
+ va_end(args);
+ buffer[sizeof(buffer) - 1] = '\0';
+
+ if (!test_colorize__) {
+ return printf("%s", buffer);
+ }
+
+#if defined CUTEST_UNIX__
+ {
+ const char *col_str;
+ switch (color) {
+ case CUTEST_COLOR_GREEN__:
+ col_str = "\033[0;32m";
+ break;
+ case CUTEST_COLOR_RED__:
+ col_str = "\033[0;31m";
+ break;
+ case CUTEST_COLOR_GREEN_INTENSIVE__:
+ col_str = "\033[1;32m";
+ break;
+ case CUTEST_COLOR_RED_INTENSIVE__:
+ col_str = "\033[1;30m";
+ break;
+ case CUTEST_COLOR_DEFAULT_INTENSIVE__:
+ col_str = "\033[1m";
+ break;
+ default:
+ col_str = "\033[0m";
+ break;
+ }
+ printf("%s", col_str);
+ n = printf("%s", buffer);
+ printf("\033[0m");
+ return n;
+ }
+#elif defined CUTEST_WIN__
+ {
+ HANDLE h;
+ CONSOLE_SCREEN_BUFFER_INFO info;
+ WORD attr;
+
+ h = GetStdHandle(STD_OUTPUT_HANDLE);
+ GetConsoleScreenBufferInfo(h, &info);
+
+ switch (color) {
+ case CUTEST_COLOR_GREEN__:
+ attr = FOREGROUND_GREEN;
+ break;
+ case CUTEST_COLOR_RED__:
+ attr = FOREGROUND_RED;
+ break;
+ case CUTEST_COLOR_GREEN_INTENSIVE__:
+ attr = FOREGROUND_GREEN | FOREGROUND_INTENSITY;
+ break;
+ case CUTEST_COLOR_RED_INTENSIVE__:
+ attr = FOREGROUND_RED | FOREGROUND_INTENSITY;
+ break;
+ case CUTEST_COLOR_DEFAULT_INTENSIVE__:
+ attr = FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED |
+ FOREGROUND_INTENSITY;
+ break;
+ default:
+ attr = 0;
+ break;
+ }
+ if (attr != 0)
+ SetConsoleTextAttribute(h, attr);
+ n = printf("%s", buffer);
+ SetConsoleTextAttribute(h, info.wAttributes);
+ return n;
+ }
+#else
+ n = printf("%s", buffer);
+ return n;
+#endif
+}
+
+int test_check__(int cond, const char *file, int line, const char *fmt, ...)
+{
+ const char *result_str;
+ int result_color;
+ int verbose_level;
+
+ if (cond) {
+ result_str = "ok";
+ result_color = CUTEST_COLOR_GREEN__;
+ verbose_level = 3;
+ } else {
+ if (!test_current_already_logged__ && test_current_unit__ != NULL) {
+ printf("[ ");
+ test_print_in_color__(CUTEST_COLOR_RED_INTENSIVE__, "FAILED");
+ printf(" ]\n");
+ }
+ result_str = "failed";
+ result_color = CUTEST_COLOR_RED__;
+ verbose_level = 2;
+ test_current_failures__++;
+ test_current_already_logged__++;
+ }
+
+ if (test_verbose_level__ >= verbose_level) {
+ size_t n = 0;
+ va_list args;
+
+ printf(" ");
+
+ if (file != NULL)
+ n += printf("%s:%d: Check ", file, line);
+
+ va_start(args, fmt);
+ n += vprintf(fmt, args);
+ va_end(args);
+
+ printf("... ");
+ test_print_in_color__(result_color, result_str);
+ printf("\n");
+ test_current_already_logged__++;
+ }
+
+ return (cond != 0);
+}
+
+static void test_list_names__(void)
+{
+ const struct test__ *test;
+
+ printf("Unit tests:\n");
+ for (test = &test_list__[0]; test->func != NULL; test++)
+ printf(" %s\n", test->name);
+}
+
+static const struct test__ *test_by_name__(const char *name)
+{
+ const struct test__ *test;
+
+ for (test = &test_list__[0]; test->func != NULL; test++) {
+ if (strcmp(test->name, name) == 0)
+ return test;
+ }
+
+ return NULL;
+}
+
+/* Call directly the given test unit function. */
+static int test_do_run__(const struct test__ *test)
+{
+ test_current_unit__ = test;
+ test_current_failures__ = 0;
+ test_current_already_logged__ = 0;
+
+ if (test_verbose_level__ >= 3) {
+ test_print_in_color__(CUTEST_COLOR_DEFAULT_INTENSIVE__, "Test %s:\n",
+ test->name);
+ test_current_already_logged__++;
+ } else if (test_verbose_level__ >= 1) {
+ size_t n;
+ char spaces[32];
+
+ n = test_print_in_color__(CUTEST_COLOR_DEFAULT_INTENSIVE__,
+ "Test %s... ", test->name);
+ memset(spaces, ' ', sizeof(spaces));
+ if (n < sizeof(spaces))
+ printf("%.*s", (int)(sizeof(spaces) - n), spaces);
+ } else {
+ test_current_already_logged__ = 1;
+ }
+
+#ifdef __cplusplus
+ try {
+#endif
+
+ /* This is good to do for case the test unit e.g. crashes. */
+ fflush(stdout);
+ fflush(stderr);
+
+ test->func();
+
+#ifdef __cplusplus
+ } catch (std::exception &e) {
+ const char *what = e.what();
+ if (what != NULL)
+ test_check__(0, NULL, 0, "Threw std::exception: %s", what);
+ else
+ test_check__(0, NULL, 0, "Threw std::exception");
+ } catch (...) {
+ test_check__(0, NULL, 0, "Threw an exception");
+ }
+#endif
+
+ if (test_verbose_level__ >= 3) {
+ switch (test_current_failures__) {
+ case 0:
+ test_print_in_color__(CUTEST_COLOR_GREEN_INTENSIVE__,
+ " All conditions have passed.\n\n");
+ break;
+ case 1:
+ test_print_in_color__(CUTEST_COLOR_RED_INTENSIVE__,
+ " One condition has FAILED.\n\n");
+ break;
+ default:
+ test_print_in_color__(CUTEST_COLOR_RED_INTENSIVE__,
+ " %d conditions have FAILED.\n\n",
+ test_current_failures__);
+ break;
+ }
+ } else if (test_verbose_level__ >= 1 && test_current_failures__ == 0) {
+ printf("[ ");
+ test_print_in_color__(CUTEST_COLOR_GREEN_INTENSIVE__, "OK");
+ printf(" ]\n");
+ }
+
+ test_current_unit__ = NULL;
+ return (test_current_failures__ == 0) ? 0 : -1;
+}
+
+#if defined(CUTEST_UNIX__) || defined(CUTEST_WIN__)
+/* Called if anything goes bad in cutest, or if the unit test ends in other
+ * way then by normal returning from its function (e.g. exception or some
+ * abnormal child process termination). */
+static void test_error__(const char *fmt, ...)
+{
+ va_list args;
+
+ if (test_verbose_level__ == 0)
+ return;
+
+ if (test_verbose_level__ <= 2 && !test_current_already_logged__ &&
+ test_current_unit__ != NULL) {
+ printf("[ ");
+ test_print_in_color__(CUTEST_COLOR_RED_INTENSIVE__, "FAILED");
+ printf(" ]\n");
+ }
+
+ if (test_verbose_level__ >= 2) {
+ test_print_in_color__(CUTEST_COLOR_RED_INTENSIVE__, " Error: ");
+ va_start(args, fmt);
+ vprintf(fmt, args);
+ va_end(args);
+ printf("\n");
+ }
+}
+#endif
+
+/* Trigger the unit test. If possible (and not suppressed) it starts a child
+ * process who calls test_do_run__(), otherwise it calls test_do_run__()
+ * directly. */
+static void test_run__(const struct test__ *test)
+{
+ int failed = 1;
+
+ test_current_unit__ = test;
+ test_current_already_logged__ = 0;
+
+ if (!test_no_exec__) {
+#if defined(CUTEST_UNIX__)
+
+ pid_t pid;
+ int exit_code;
+
+ pid = fork();
+ if (pid == (pid_t)-1) {
+ test_error__("Cannot fork. %s [%d]", strerror(errno), errno);
+ failed = 1;
+ } else if (pid == 0) {
+ /* Child: Do the test. */
+ failed = (test_do_run__(test) != 0);
+ exit(failed ? 1 : 0);
+ } else {
+ /* Parent: Wait until child terminates and analyze its exit code. */
+ waitpid(pid, &exit_code, 0);
+ if (WIFEXITED(exit_code)) {
+ switch (WEXITSTATUS(exit_code)) {
+ case 0:
+ failed = 0;
+ break; /* test has passed. */
+ case 1: /* noop */
+ break; /* "normal" failure. */
+ default:
+ test_error__("Unexpected exit code [%d]",
+ WEXITSTATUS(exit_code));
+ }
+ } else if (WIFSIGNALED(exit_code)) {
+ char tmp[32];
+ const char *signame;
+ switch (WTERMSIG(exit_code)) {
+ case SIGINT:
+ signame = "SIGINT";
+ break;
+ case SIGHUP:
+ signame = "SIGHUP";
+ break;
+ case SIGQUIT:
+ signame = "SIGQUIT";
+ break;
+ case SIGABRT:
+ signame = "SIGABRT";
+ break;
+ case SIGKILL:
+ signame = "SIGKILL";
+ break;
+ case SIGSEGV:
+ signame = "SIGSEGV";
+ break;
+ case SIGILL:
+ signame = "SIGILL";
+ break;
+ case SIGTERM:
+ signame = "SIGTERM";
+ break;
+ default:
+ sprintf(tmp, "signal %d", WTERMSIG(exit_code));
+ signame = tmp;
+ break;
+ }
+ test_error__("Test interrupted by %s", signame);
+ } else {
+ test_error__("Test ended in an unexpected way [%d]", exit_code);
+ }
+ }
+
+#elif defined(CUTEST_WIN__)
+
+ char buffer[512] = { 0 };
+ STARTUPINFOA startupInfo = { 0 };
+ PROCESS_INFORMATION processInfo;
+ DWORD exitCode;
+
+ /* Windows has no fork(). So we propagate all info into the child
+ * through a command line arguments. */
+ _snprintf(buffer, sizeof(buffer) - 1,
+ "%s --no-exec --no-summary --verbose=%d --color=%s -- \"%s\"",
+ test_argv0__, test_verbose_level__,
+ test_colorize__ ? "always" : "never", test->name);
+ startupInfo.cb = sizeof(STARTUPINFO);
+ if (CreateProcessA(NULL, buffer, NULL, NULL, FALSE, 0, NULL, NULL,
+ &startupInfo, &processInfo)) {
+ WaitForSingleObject(processInfo.hProcess, INFINITE);
+ GetExitCodeProcess(processInfo.hProcess, &exitCode);
+ CloseHandle(processInfo.hThread);
+ CloseHandle(processInfo.hProcess);
+ failed = (exitCode != 0);
+ } else {
+ test_error__("Cannot create unit test subprocess [%ld].",
+ GetLastError());
+ failed = 1;
+ }
+
+#else
+
+ /* A platform where we don't know how to run child process. */
+ failed = (test_do_run__(test) != 0);
+
+#endif
+
+ } else {
+ /* Child processes suppressed through --no-exec. */
+ failed = (test_do_run__(test) != 0);
+ }
+
+ test_current_unit__ = NULL;
+
+ test_stat_run_units__++;
+ if (failed)
+ test_stat_failed_units__++;
+}
+
+#if defined(CUTEST_WIN__)
+/* Callback for SEH events. */
+static LONG CALLBACK test_exception_filter__(EXCEPTION_POINTERS *ptrs)
+{
+ test_error__("Unhandled SEH exception %08lx at %p.",
+ ptrs->ExceptionRecord->ExceptionCode,
+ ptrs->ExceptionRecord->ExceptionAddress);
+ fflush(stdout);
+ fflush(stderr);
+ return EXCEPTION_EXECUTE_HANDLER;
+}
+#endif
+
+static void test_help__(void)
+{
+ printf("Usage: %s [options] [test...]\n", test_argv0__);
+ printf("Run the specified unit tests; or if the option '--skip' is used, "
+ "run all\n");
+ printf("tests in the suite but those listed. By default, if no tests are "
+ "specified\n");
+ printf("on the command line, all unit tests in the suite are run.\n");
+ printf("\n");
+ printf("Options:\n");
+ printf(
+ " -s, --skip Execute all unit tests but the listed ones\n");
+ printf(" --no-exec Do not execute unit tests as child "
+ "processes\n");
+ printf(
+ " --no-summary Suppress printing of test results summary\n");
+ printf(" -l, --list List unit tests in the suite and exit\n");
+ printf(" -v, --verbose Enable more verbose output\n");
+ printf(" --verbose=LEVEL Set verbose level to LEVEL:\n");
+ printf(" 0 ... Be silent\n");
+ printf(" 1 ... Output one line per test (and "
+ "summary)\n");
+ printf(" 2 ... As 1 and failed conditions (this "
+ "is default)\n");
+ printf(" 3 ... As 1 and all conditions (and "
+ "extended summary)\n");
+ printf(" --color=WHEN Enable colorized output (WHEN is one of "
+ "'auto', 'always', 'never')\n");
+ printf(" -h, --help Display this help and exit\n");
+ printf("\n");
+ test_list_names__();
+}
+
+int main(int argc, char **argv)
+{
+ const struct test__ **tests = NULL;
+ int i, j, n = 0;
+ int seen_double_dash = 0;
+
+ test_argv0__ = argv[0];
+
+#if defined CUTEST_UNIX__
+ test_colorize__ = isatty(STDOUT_FILENO);
+#elif defined CUTEST_WIN__
+ test_colorize__ = _isatty(_fileno(stdout));
+#else
+ test_colorize__ = 0;
+#endif
+
+ /* Parse options */
+ for (i = 1; i < argc; i++) {
+ if (seen_double_dash || argv[i][0] != '-') {
+ tests = (const struct test__ **)realloc(
+ (void *)tests, (n + 1) * sizeof(const struct test__ *));
+ if (tests == NULL) {
+ fprintf(stderr, "Out of memory.\n");
+ exit(2);
+ }
+ tests[n] = test_by_name__(argv[i]);
+ if (tests[n] == NULL) {
+ fprintf(stderr, "%s: Unrecognized unit test '%s'\n", argv[0],
+ argv[i]);
+ fprintf(stderr, "Try '%s --list' for list of unit tests.\n",
+ argv[0]);
+ exit(2);
+ }
+ n++;
+ } else if (strcmp(argv[i], "--") == 0) {
+ seen_double_dash = 1;
+ } else if (strcmp(argv[i], "--help") == 0 ||
+ strcmp(argv[i], "-h") == 0) {
+ test_help__();
+ exit(0);
+ } else if (strcmp(argv[i], "--verbose") == 0 ||
+ strcmp(argv[i], "-v") == 0) {
+ test_verbose_level__++;
+ } else if (strncmp(argv[i], "--verbose=", 10) == 0) {
+ test_verbose_level__ = atoi(argv[i] + 10);
+ } else if (strcmp(argv[i], "--color=auto") == 0) {
+ /* noop (set from above) */
+ } else if (strcmp(argv[i], "--color=always") == 0 ||
+ strcmp(argv[i], "--color") == 0) {
+ test_colorize__ = 1;
+ } else if (strcmp(argv[i], "--color=never") == 0) {
+ test_colorize__ = 0;
+ } else if (strcmp(argv[i], "--skip") == 0 ||
+ strcmp(argv[i], "-s") == 0) {
+ test_skip_mode__ = 1;
+ } else if (strcmp(argv[i], "--no-exec") == 0) {
+ test_no_exec__ = 1;
+ } else if (strcmp(argv[i], "--no-summary") == 0) {
+ test_no_summary__ = 1;
+ } else if (strcmp(argv[i], "--list") == 0 ||
+ strcmp(argv[i], "-l") == 0) {
+ test_list_names__();
+ exit(0);
+ } else {
+ fprintf(stderr, "%s: Unrecognized option '%s'\n", argv[0], argv[i]);
+ fprintf(stderr, "Try '%s --help' for more information.\n", argv[0]);
+ exit(2);
+ }
+ }
+
+#if defined(CUTEST_WIN__)
+ SetUnhandledExceptionFilter(test_exception_filter__);
+#endif
+
+ /* Count all test units */
+ test_count__ = 0;
+ for (i = 0; test_list__[i].func != NULL; i++)
+ test_count__++;
+
+ /* Run the tests */
+ if (n == 0) {
+ /* Run all tests */
+ for (i = 0; test_list__[i].func != NULL; i++)
+ test_run__(&test_list__[i]);
+ } else if (!test_skip_mode__) {
+ /* Run the listed tests */
+ for (i = 0; i < n; i++)
+ test_run__(tests[i]);
+ } else {
+ /* Run all tests except those listed */
+ for (i = 0; test_list__[i].func != NULL; i++) {
+ int want_skip = 0;
+ for (j = 0; j < n; j++) {
+ if (tests[j] == &test_list__[i]) {
+ want_skip = 1;
+ break;
+ }
+ }
+ if (!want_skip)
+ test_run__(&test_list__[i]);
+ }
+ }
+
+ /* Write a summary */
+ if (!test_no_summary__ && test_verbose_level__ >= 1) {
+ test_print_in_color__(CUTEST_COLOR_DEFAULT_INTENSIVE__, "\nSummary:\n");
+
+ if (test_verbose_level__ >= 3) {
+ printf(" Count of all unit tests: %4d\n", test_count__);
+ printf(" Count of run unit tests: %4d\n",
+ test_stat_run_units__);
+ printf(" Count of failed unit tests: %4d\n",
+ test_stat_failed_units__);
+ printf(" Count of skipped unit tests: %4d\n",
+ test_count__ - test_stat_run_units__);
+ }
+
+ if (test_stat_failed_units__ == 0) {
+ test_print_in_color__(CUTEST_COLOR_GREEN_INTENSIVE__,
+ " SUCCESS: All unit tests have passed.\n");
+ } else {
+ test_print_in_color__(
+ CUTEST_COLOR_RED_INTENSIVE__,
+ " FAILED: %d of %d unit tests have failed.\n",
+ test_stat_failed_units__, test_stat_run_units__);
+ }
+ }
+
+ if (tests != NULL)
+ free((void *)tests);
+
+ return (test_stat_failed_units__ == 0) ? 0 : 1;
+}
+
+#endif /* #ifndef TEST_NO_MAIN */
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* #ifndef CUTEST_H__ */