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24 #include <sys/types.h>
36 * TODO: Windows version
37 * this implements a unique bi-directional popen-like function that
38 * allows reading data from both stdout and stderr. And writing to
42 * FILE *handles[3] = task_popen("ls", "-l", "r");
43 * if (!handles) { perror("failed to open stdin/stdout/stderr to ls");
44 * // handles[0] = stdin
45 * // handles[1] = stdout
46 * // handles[2] = stderr
48 * task_pclose(handles); // to close
51 #include <sys/types.h>
63 FILE ** task_popen(const char *command, const char *mode) {
69 popen_t *data = mem_a(sizeof(popen_t));
72 * Parse the command now into a list for execv, this is a pain
75 char *line = (char*)command;
79 while (*line != '\0') {
80 while (*line == ' ' || *line == '\t' || *line == '\n')
84 while (*line != '\0' && *line != ' ' &&
85 *line != '\t' && *line != '\n') line++;
91 if ((trypipe = pipe(inhandle)) < 0) goto task_popen_error_0;
92 if ((trypipe = pipe(outhandle)) < 0) goto task_popen_error_1;
93 if ((trypipe = pipe(errhandle)) < 0) goto task_popen_error_2;
95 if ((data->pid = fork()) > 0) {
101 data->pipes [0] = inhandle [1];
102 data->pipes [1] = outhandle[0];
103 data->pipes [2] = errhandle[0];
104 data->handles[0] = fdopen(inhandle [1], "w");
105 data->handles[1] = fdopen(outhandle[0], mode);
106 data->handles[2] = fdopen(errhandle[0], mode);
111 return data->handles;
112 } else if (data->pid == 0) {
118 /* see piping documentation for this sillyness :P */
119 close(0), dup(inhandle [0]);
120 close(1), dup(outhandle[1]);
121 close(2), dup(errhandle[1]);
127 goto task_popen_error_3;
132 return data->handles;
134 task_popen_error_3: close(errhandle[0]), close(errhandle[1]);
135 task_popen_error_2: close(outhandle[0]), close(outhandle[1]);
136 task_popen_error_1: close(inhandle [0]), close(inhandle [1]);
144 int task_pclose(FILE **handles) {
145 popen_t *data = (popen_t*)handles;
148 close(data->pipes[0]); /* stdin */
149 close(data->pipes[1]); /* stdout */
150 close(data->pipes[2]); /* stderr */
152 waitpid(data->pid, &status, 0);
159 #error "There is no support for windows yet ... this is not a FTBFS bug"
162 #define TASK_COMPILE 0
163 #define TASK_EXECUTE 1
166 * Task template system:
167 * templates are rules for a specific test, used to create a "task" that
168 * is executed with those set of rules (arguments, and what not). Tests
169 * that don't have a template with them cannot become tasks, since without
170 * the information for that test there is no way to properly "test" them.
171 * Rules for these templates are described in a template file, using a
172 * task template language.
174 * The language is a basic finite statemachine, top-down single-line
175 * description language.
177 * The languge is composed entierly of "tags" which describe a string of
178 * text for a task. Think of it much like a configuration file. Except
179 * it's been designed to allow flexibility and future support for prodecual
182 * The following "tags" are suported by the language
185 * Used to set a description of the current test, this must be
186 * provided, this tag is NOT optional.
189 * Used to set a failure message, this message will be displayed
190 * if the test fails, this tag is optional
193 * Used to set a success message, this message will be displayed
194 * if the test succeeds, this tag is optional.
197 * Used to set the procedure for the given task, there are two
200 * This simply performs compilation only
202 * This will perform compilation and execution
204 * This will perform compilation, but requires
205 * the compilation to fail in order to succeed.
207 * This must be provided, this tag is NOT optional.
210 * Used to set the compilation flags for the given task, this
211 * must be provided, this tag is NOT optional.
214 * Used to set the execution flags for the given task. This tag
215 * must be provided if T == -execute, otherwise it's erroneous
216 * as compilation only takes place.
219 * Used to describe a string of text that should be matched from
220 * the output of executing the task. If this doesn't match the
221 * task fails. This tag must be provided if T == -execute, otherwise
222 * it's erroneous as compilation only takes place.
225 * Used to specify the INPUT source file to operate on, this must be
226 * provided, this tag is NOT optional
230 * These tags have one-time use, using them more than once will result
231 * in template compilation errors.
233 * Lines beginning with # or // in the template file are comments and
234 * are ignored by the template parser.
236 * Whitespace is optional, with exception to the colon ':' between the
237 * tag and it's assignment value/
239 * The template compiler will detect erronrous tags (optional tags
240 * that need not be set), as well as missing tags, and error accordingly
241 * this will result in the task failing.
245 char *failuremessage;
246 char *successmessage;
256 * This is very much like a compiler code generator :-). This generates
257 * a value from some data observed from the compiler.
259 bool task_template_generate(task_template_t *template, char tag, const char *file, size_t line, const char *value) {
260 char **destval = NULL;
266 case 'D': destval = &template->description; break;
267 case 'F': destval = &template->failuremessage; break;
268 case 'S': destval = &template->successmessage; break;
269 case 'T': destval = &template->proceduretype; break;
270 case 'C': destval = &template->compileflags; break;
271 case 'E': destval = &template->executeflags; break;
272 case 'I': destval = &template->sourcefile; break;
274 con_printmsg(LVL_ERROR, __FILE__, __LINE__, "internal error",
275 "invalid tag `%c:` during code generation\n",
282 * Ensure if for the given tag, there already exists a
286 con_printmsg(LVL_ERROR, file, line, "compile error",
287 "tag `%c:` already assigned value: %s\n",
294 * Strip any whitespace that might exist in the value for assignments
297 if (value && *value && (*value == ' ' || *value == '\t'))
301 * Value will contain a newline character at the end, we need to strip
302 * this otherwise kaboom, seriously, kaboom :P
304 *strrchr(value, '\n')='\0';
307 * Now allocate and set the actual value for the specific tag. Which
308 * was properly selected and can be accessed with *destval.
310 *destval = util_strdup(value);
315 bool task_template_parse(const char *file, task_template_t *template, FILE *fp) {
324 /* top down parsing */
325 while (util_getline(&back, &size, fp) != EOF) {
326 /* skip whitespace */
328 if (*data && (*data == ' ' || *data == '\t'))
333 * Handle comments inside task template files. We're strict
334 * about the language for fun :-)
337 if (data[1] != '/') {
338 con_printmsg(LVL_ERROR, file, line, "template parse error",
339 "invalid character `/`, perhaps you meant `//` ?");
348 * Empty newlines are acceptable as well, so we handle that here
349 * despite being just odd since there should't be that many
350 * empty lines to begin with.
358 * Now begin the actual "tag" stuff. This works as you expect
368 if (data[1] != ':') {
369 con_printmsg(LVL_ERROR, file, line, "template parse error",
370 "expected `:` after `%c`",
375 if (!task_template_generate(template, *data, file, line, &data[3])) {
376 con_printmsg(LVL_ERROR, file, line, "template compile error",
377 "failed to generate for given task\n"
384 * Match requires it's own system since we allow multiple M's
385 * for multi-line matching.
389 char *value = &data[3];
390 if (data[1] != ':') {
391 con_printmsg(LVL_ERROR, file, line, "template parse error",
392 "expected `:` after `%c`",
398 if (value && *value && (*value == ' ' || *value == '\t'))
402 * Value will contain a newline character at the end, we need to strip
403 * this otherwise kaboom, seriously, kaboom :P
405 *strrchr(value, '\n')='\0';
407 vec_push(template->comparematch, util_strdup(value));
413 con_printmsg(LVL_ERROR, file, line, "template parse error",
414 "invalid tag `%c`", *data
417 /* no break required */
420 /* update line and free old sata */
436 * Nullifies the template data: used during initialization of a new
439 void task_template_nullify(task_template_t *template) {
443 template->description = NULL;
444 template->failuremessage = NULL;
445 template->successmessage = NULL;
446 template->proceduretype = NULL;
447 template->compileflags = NULL;
448 template->executeflags = NULL;
449 template->comparematch = NULL;
450 template->sourcefile = NULL;
451 template->tempfilename = NULL;
454 task_template_t *task_template_compile(const char *file, const char *dir) {
455 /* a page should be enough */
457 FILE *tempfile = NULL;
458 task_template_t *template = NULL;
460 memset (fullfile, 0, sizeof(fullfile));
461 snprintf(fullfile, sizeof(fullfile), "%s/%s", dir, file);
463 tempfile = fopen(fullfile, "r");
464 template = mem_a(sizeof(task_template_t));
465 task_template_nullify(template);
468 * Esnure the file even exists for the task, this is pretty useless
472 con_err("template file: %s does not exist or invalid permissions\n",
478 if (!task_template_parse(file, template, tempfile)) {
479 con_err("template parse error: error during parsing\n");
484 * Regardless procedure type, the following tags must exist:
490 if (!template->description) {
491 con_err("template compile error: %s missing `D:` tag\n", file);
494 if (!template->proceduretype) {
495 con_err("template compile error: %s missing `T:` tag\n", file);
498 if (!template->compileflags) {
499 con_err("template compile error: %s missing `C:` tag\n", file);
502 if (!template->sourcefile) {
503 con_err("template compile error: %s missing `I:` tag\n", file);
508 * Now lets compile the template, compilation is really just
509 * the process of validating the input.
511 if (!strcmp(template->proceduretype, "-compile")) {
512 if (template->executeflags)
513 con_err("template compile warning: %s erroneous tag `E:` when only compiling\n", file);
514 if (template->comparematch)
515 con_err("template compile warning: %s erroneous tag `M:` when only compiling\n", file);
517 } else if (!strcmp(template->proceduretype, "-execute")) {
518 if (!template->executeflags) {
519 /* default to $null */
520 template->executeflags = util_strdup("$null");
522 if (!template->comparematch) {
523 con_err("template compile error: %s missing `M:` tag (use `$null` for exclude)\n", file);
526 } else if (!strcmp(template->proceduretype, "-fail")) {
527 if (template->executeflags)
528 con_err("template compile warning: %s erroneous tag `E:` when only failing\n", file);
529 if (template->comparematch)
530 con_err("template compile warning: %s erroneous tag `M:` when only failing\n", file);
533 con_err("template compile error: %s invalid procedure type: %s\n", file, template->proceduretype);
543 * The file might not exist and we jump here when that doesn't happen
544 * so the check to see if it's not null here is required.
553 void task_template_destroy(task_template_t **template) {
557 if ((*template)->description) mem_d((*template)->description);
558 if ((*template)->failuremessage) mem_d((*template)->failuremessage);
559 if ((*template)->successmessage) mem_d((*template)->successmessage);
560 if ((*template)->proceduretype) mem_d((*template)->proceduretype);
561 if ((*template)->compileflags) mem_d((*template)->compileflags);
562 if ((*template)->executeflags) mem_d((*template)->executeflags);
563 if ((*template)->sourcefile) mem_d((*template)->sourcefile);
566 * Delete all allocated string for task template then destroy the
571 for (; i < vec_size((*template)->comparematch); i++)
572 mem_d((*template)->comparematch[i]);
574 vec_free((*template)->comparematch);
578 * Nullify all the template members otherwise NULL comparision
579 * checks will fail if template pointer is reused.
585 * Now comes the task manager, this system allows adding tasks in and out
586 * of a task list. This is the executor of the tasks essentially as well.
589 task_template_t *template;
598 task_t *task_tasks = NULL;
601 * Read a directory and searches for all template files in it
602 * which is later used to run all tests.
604 bool task_propagate(const char *curdir) {
607 struct dirent *files;
608 struct stat directory;
612 dir = opendir(curdir);
614 while ((files = readdir(dir))) {
615 memset (buffer, 0,sizeof(buffer));
616 snprintf(buffer, sizeof(buffer), "%s/%s", curdir, files->d_name);
618 if (stat(buffer, &directory) == -1) {
619 con_err("internal error: stat failed, aborting\n");
623 /* skip directories */
624 if (S_ISDIR(directory.st_mode))
628 * We made it here, which concludes the file/directory is not
629 * actually a directory, so it must be a file :)
631 if (strcmp(files->d_name + strlen(files->d_name) - 5, ".tmpl") == 0) {
632 task_template_t *template = task_template_compile(files->d_name, curdir);
633 char buf[4096]; /* one page should be enough */
636 util_debug("TEST", "compiling task template: %s/%s\n", curdir, files->d_name);
639 con_err("error compiling task template: %s\n", files->d_name);
644 * Generate a temportary file name for the output binary
645 * so we don't trample over an existing one.
647 template->tempfilename = tempnam(curdir, "TMPDAT");
650 * Generate the command required to open a pipe to a process
651 * which will be refered to with a handle in the task for
652 * reading the data from the pipe.
654 memset (buf,0,sizeof(buf));
655 snprintf(buf, sizeof(buf), "%s %s/%s %s -o %s",
656 task_bins[TASK_COMPILE],
658 template->sourcefile,
659 template->compileflags,
660 template->tempfilename
664 * The task template was compiled, now lets create a task from
665 * the template data which has now been propagated.
667 task.template = template;
668 if (!(task.runhandles = task_popen(buf, "r"))) {
669 con_err("error opening pipe to process for test: %s\n", template->description);
674 util_debug("TEST", "executing test: `%s` [%s]\n", template->description, buf);
677 * Open up some file desciptors for logging the stdout/stderr
680 memset (buf,0,sizeof(buf));
681 snprintf(buf, sizeof(buf), "%s.stdout", template->tempfilename);
682 task.stdoutlogfile = util_strdup(buf);
683 if (!(task.stdoutlog = fopen(buf, "w"))) {
684 con_err("error opening %s for stdout\n", buf);
688 memset (buf,0,sizeof(buf));
689 snprintf(buf, sizeof(buf), "%s.stderr", template->tempfilename);
690 task.stderrlogfile = util_strdup(buf);
691 if (!(task.stderrlog = fopen(buf, "w"))) {
692 con_err("error opening %s for stderr\n", buf);
696 vec_push(task_tasks, task);
700 util_debug("TEST", "compiled %d task template files out of %d\n",
701 vec_size(task_tasks),
710 * Removes all temporary 'progs.dat' files created during compilation
713 void task_cleanup(const char *curdir) {
715 struct dirent *files;
718 dir = opendir(curdir);
720 while ((files = readdir(dir))) {
721 memset(buffer, 0, sizeof(buffer));
722 if (strstr(files->d_name, "TMP")) {
723 snprintf(buffer, sizeof(buffer), "%s/%s", curdir, files->d_name);
725 con_err("error removing temporary file: %s\n", buffer);
727 util_debug("TEST", "removed temporary file: %s\n", buffer);
735 * Task precleanup removes any existing temporary files or log files
736 * left behind from a previous invoke of the test-suite.
738 void task_precleanup(const char *curdir) {
740 struct dirent *files;
743 dir = opendir(curdir);
745 while ((files = readdir(dir))) {
746 memset(buffer, 0, sizeof(buffer));
747 if (strstr(files->d_name, "TMP") ||
748 strstr(files->d_name, ".stdout") ||
749 strstr(files->d_name, ".stderr"))
751 snprintf(buffer, sizeof(buffer), "%s/%s", curdir, files->d_name);
753 con_err("error removing temporary file: %s\n", buffer);
755 util_debug("TEST", "removed temporary file: %s\n", buffer);
762 void task_destroy(const char *curdir) {
764 * Free all the data in the task list and finally the list itself
765 * then proceed to cleanup anything else outside the program like
769 for (i = 0; i < vec_size(task_tasks); i++) {
771 * Close any open handles to files or processes here. It's mighty
772 * annoying to have to do all this cleanup work.
774 if (task_tasks[i].runhandles) task_pclose(task_tasks[i].runhandles);
775 if (task_tasks[i].stdoutlog) fclose (task_tasks[i].stdoutlog);
776 if (task_tasks[i].stderrlog) fclose (task_tasks[i].stderrlog);
779 * Only remove the log files if the test actually compiled otherwise
780 * forget about it (or if it didn't compile, and the procedure type
781 * was set to -fail (meaning it shouldn't compile) .. stil remove)
783 if (task_tasks[i].compiled || !strcmp(task_tasks[i].template->proceduretype, "-fail")) {
784 if (remove(task_tasks[i].stdoutlogfile))
785 con_err("error removing stdout log file: %s\n", task_tasks[i].stdoutlogfile);
787 util_debug("TEST", "removed stdout log file: %s\n", task_tasks[i].stdoutlogfile);
789 if (remove(task_tasks[i].stderrlogfile))
790 con_err("error removing stderr log file: %s\n", task_tasks[i].stderrlogfile);
792 util_debug("TEST", "removed stderr log file: %s\n", task_tasks[i].stderrlogfile);
795 /* free util_strdup data for log files */
796 mem_d(task_tasks[i].stdoutlogfile);
797 mem_d(task_tasks[i].stderrlogfile);
799 task_template_destroy(&task_tasks[i].template);
801 vec_free(task_tasks);
804 * Cleanup outside stuff like temporary files.
806 task_cleanup(curdir);
810 * This executes the QCVM task for a specificly compiled progs.dat
811 * using the template passed into it for call-flags and user defined
814 bool task_execute(task_template_t *template, char ***line) {
818 memset (buffer,0,sizeof(buffer));
821 * Drop the execution flags for the QCVM if none where
822 * actually specified.
824 if (!strcmp(template->executeflags, "$null")) {
825 snprintf(buffer, sizeof(buffer), "%s %s",
826 task_bins[TASK_EXECUTE],
827 template->tempfilename
830 snprintf(buffer, sizeof(buffer), "%s %s %s",
831 task_bins[TASK_EXECUTE],
832 template->executeflags,
833 template->tempfilename
837 util_debug("TEST", "executing qcvm: `%s` [%s]\n",
838 template->description,
842 execute = popen(buffer, "r");
847 * Now lets read the lines and compare them to the matches we expect
848 * and handle accordingly.
854 while (util_getline(&data, &size, execute) != EOF) {
855 if (!strcmp(data, "No main function found\n")) {
856 con_err("test failure: `%s` [%s] (No main function found)\n",
857 template->description,
858 (template->failuremessage) ?
859 template->failuremessage : "unknown"
866 * Trim newlines from data since they will just break our
867 * ability to properly validate matches.
869 if (strrchr(data, '\n'))
870 *strrchr(data, '\n') = '\0';
872 if (vec_size(template->comparematch) > compare) {
873 if (strcmp(data, template->comparematch[compare++]))
880 * Copy to output vector for diagnostics if execution match
883 vec_push(*line, data);
897 * This schedualizes all tasks and actually runs them individually
898 * this is generally easy for just -compile variants. For compile and
899 * execution this takes more work since a task needs to be generated
900 * from thin air and executed INLINE.
902 void task_schedualize() {
903 bool execute = false;
910 util_debug("TEST", "found %d tasks, preparing to execute\n", vec_size(task_tasks));
912 for (i = 0; i < vec_size(task_tasks); i++) {
913 util_debug("TEST", "executing task: %d: %s\n", i, task_tasks[i].template->description);
915 * Generate a task from thin air if it requires execution in
918 execute = !!(!strcmp(task_tasks[i].template->proceduretype, "-execute"));
921 * We assume it compiled before we actually compiled :). On error
922 * we change the value
924 task_tasks[i].compiled = true;
927 * Read data from stdout first and pipe that stuff into a log file
928 * then we do the same for stderr.
930 while (util_getline(&data, &size, task_tasks[i].runhandles[1]) != EOF) {
931 fputs(data, task_tasks[i].stdoutlog);
933 if (strstr(data, "failed to open file")) {
934 task_tasks[i].compiled = false;
938 fflush(task_tasks[i].stdoutlog);
940 while (util_getline(&data, &size, task_tasks[i].runhandles[2]) != EOF) {
942 * If a string contains an error we just dissalow execution
945 * TODO: make this more percise, e.g if we print a warning
946 * that refers to a variable named error, or something like
947 * that .. then this will blowup :P
949 if (strstr(data, "error")) {
951 task_tasks[i].compiled = false;
954 fputs(data, task_tasks[i].stderrlog);
955 fflush(task_tasks[i].stdoutlog);
958 if (!task_tasks[i].compiled && strcmp(task_tasks[i].template->proceduretype, "-fail")) {
959 con_err("test failure: `%s` [%s] (failed to compile) see %s.stdout and %s.stderr\n",
960 task_tasks[i].template->description,
961 (task_tasks[i].template->failuremessage) ?
962 task_tasks[i].template->failuremessage : "unknown",
963 task_tasks[i].template->tempfilename,
964 task_tasks[i].template->tempfilename
970 con_out("test succeeded: `%s` [%s]\n",
971 task_tasks[i].template->description,
972 (task_tasks[i].template->successmessage) ?
973 task_tasks[i].template->successmessage : "unknown"
979 * If we made it here that concludes the task is to be executed
980 * in the virtual machine.
982 if (!task_execute(task_tasks[i].template, &match)) {
985 con_err("test failure: `%s` [%s] (invalid results from execution)\n",
986 task_tasks[i].template->description,
987 (task_tasks[i].template->failuremessage) ?
988 task_tasks[i].template->failuremessage : "unknown"
992 * Print nicely formatted expected match lists to console error
993 * handler for the all the given matches in the template file and
994 * what was actually returned from executing.
996 con_err(" Expected From %u Matches: (got %u Matches)\n",
997 vec_size(task_tasks[i].template->comparematch),
1000 for (; d < vec_size(task_tasks[i].template->comparematch); d++) {
1001 char *select = task_tasks[i].template->comparematch[d];
1002 size_t length = 40 - strlen(select);
1004 con_err(" Expected: \"%s\"", select);
1007 con_err("| Got: \"%s\"\n", (d >= vec_size(match)) ? "<<nothing else to compare>>" : match[d]);
1011 * Print the non-expected out (since we are simply not expecting it)
1012 * This will help track down bugs in template files that fail to match
1015 if (vec_size(match) > vec_size(task_tasks[i].template->comparematch)) {
1016 for (d = 0; d < vec_size(match) - vec_size(task_tasks[i].template->comparematch); d++) {
1017 con_err(" Expected: Nothing | Got: \"%s\"\n",
1018 match[d + vec_size(task_tasks[i].template->comparematch)]
1024 for (j = 0; j < vec_size(match); j++)
1029 for (j = 0; j < vec_size(match); j++)
1033 con_out("test succeeded: `%s` [%s]\n",
1034 task_tasks[i].template->description,
1035 (task_tasks[i].template->successmessage) ?
1036 task_tasks[i].template->successmessage : "unknown"
1043 * This is the heart of the whole test-suite process. This cleans up
1044 * any existing temporary files left behind as well as log files left
1045 * behind. Then it propagates a list of tests from `curdir` by scaning
1046 * it for template files and compiling them into tasks, in which it
1047 * schedualizes them (executes them) and actually reports errors and
1048 * what not. It then proceeds to destroy the tasks and return memory
1049 * it's the engine :)
1051 * It returns true of tests could be propagated, otherwise it returns
1054 * It expects con_init() was called before hand.
1056 bool test_perform(const char *curdir) {
1057 task_precleanup(curdir);
1058 if (!task_propagate(curdir)) {
1059 con_err("error: failed to propagate tasks\n");
1060 task_destroy(curdir);
1064 * If we made it here all tasks where propagated from their resultant
1065 * template file. So we can start the FILO scheduler, this has been
1066 * designed in the most thread-safe way possible for future threading
1067 * it's designed to prevent lock contention, and possible syncronization
1071 task_destroy(curdir);
1077 * Fancy GCC-like LONG parsing allows things like --opt=param with
1078 * assignment operator. This is used for redirecting stdout/stderr
1079 * console to specific files of your choice.
1081 static bool parsecmd(const char *optname, int *argc_, char ***argv_, char **out, int ds, bool split) {
1083 char **argv = *argv_;
1085 size_t len = strlen(optname);
1087 if (strncmp(argv[0]+ds, optname, len))
1090 /* it's --optname, check how the parameter is supplied */
1091 if (argv[0][ds+len] == '=') {
1092 *out = argv[0]+ds+len+1;
1096 if (!split || argc < ds) /* no parameter was provided, or only single-arg form accepted */
1099 /* using --opt param */
1106 int main(int argc, char **argv) {
1107 char *redirout = (char*)stdout;
1108 char *redirerr = (char*)stderr;
1113 * Command line option parsing commences now We only need to support
1114 * a few things in the test suite.
1120 if (argv[0][0] == '-') {
1121 if (parsecmd("redirout", &argc, &argv, &redirout, 1, false))
1123 if (parsecmd("redirerr", &argc, &argv, &redirerr, 1, false))
1126 con_change(redirout, redirerr);
1128 if (!strcmp(argv[0]+1, "debug")) {
1132 if (!strcmp(argv[0]+1, "memchk")) {
1136 if (!strcmp(argv[0]+1, "nocolor")) {
1141 con_err("invalid argument %s\n", argv[0]+1);
1145 con_change(redirout, redirerr);
1146 test_perform("tests");