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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>
64 FILE ** task_popen(const char *command, const char *mode) {
70 popen_t *data = mem_a(sizeof(popen_t));
73 * Parse the command now into a list for execv, this is a pain
76 char *line = (char*)command;
80 while (*line != '\0') {
81 while (*line == ' ' || *line == '\t' || *line == '\n')
85 while (*line != '\0' && *line != ' ' &&
86 *line != '\t' && *line != '\n') line++;
92 if ((trypipe = pipe(inhandle)) < 0) goto task_popen_error_0;
93 if ((trypipe = pipe(outhandle)) < 0) goto task_popen_error_1;
94 if ((trypipe = pipe(errhandle)) < 0) goto task_popen_error_2;
96 if ((data->pid = fork()) > 0) {
100 close(errhandle [1]);
102 data->pipes [0] = inhandle [1];
103 data->pipes [1] = outhandle[0];
104 data->pipes [2] = errhandle[0];
105 data->handles[0] = fdopen(inhandle [1], "w");
106 data->handles[1] = fdopen(outhandle[0], mode);
107 data->handles[2] = fdopen(errhandle[0], mode);
112 return data->handles;
113 } else if (data->pid == 0) {
119 /* see piping documentation for this sillyness :P */
120 close(0), dup(inhandle [0]);
121 close(1), dup(outhandle[1]);
122 close(2), dup(errhandle[1]);
128 goto task_popen_error_3;
133 return data->handles;
135 task_popen_error_3: close(errhandle[0]), close(errhandle[1]);
136 task_popen_error_2: close(outhandle[0]), close(outhandle[1]);
137 task_popen_error_1: close(inhandle [0]), close(inhandle [1]);
145 int task_pclose(FILE **handles) {
146 popen_t *data = (popen_t*)handles;
149 close(data->pipes[0]); /* stdin */
150 close(data->pipes[1]); /* stdout */
151 close(data->pipes[2]); /* stderr */
153 waitpid(data->pid, &status, 0);
160 #error "There is no support for windows yet ... this is not a FTBFS bug"
163 #define TASK_COMPILE 0
164 #define TASK_EXECUTE 1
167 * Task template system:
168 * templates are rules for a specific test, used to create a "task" that
169 * is executed with those set of rules (arguments, and what not). Tests
170 * that don't have a template with them cannot become tasks, since without
171 * the information for that test there is no way to properly "test" them.
172 * Rules for these templates are described in a template file, using a
173 * task template language.
175 * The language is a basic finite statemachine, top-down single-line
176 * description language.
178 * The languge is composed entierly of "tags" which describe a string of
179 * text for a task. Think of it much like a configuration file. Except
180 * it's been designed to allow flexibility and future support for prodecual
183 * The following "tags" are suported by the language
186 * Used to set a description of the current test, this must be
187 * provided, this tag is NOT optional.
190 * Used to set a failure message, this message will be displayed
191 * if the test fails, this tag is optional
194 * Used to set a success message, this message will be displayed
195 * if the test succeeds, this tag is optional.
198 * Used to set the procedure for the given task, there are two
201 * This simply performs compilation only
203 * This will perform compilation and execution
205 * This will perform compilation, but requires
206 * the compilation to fail in order to succeed.
208 * This must be provided, this tag is NOT optional.
211 * Used to set the compilation flags for the given task, this
212 * must be provided, this tag is NOT optional.
215 * Used to set the execution flags for the given task. This tag
216 * must be provided if T == -execute, otherwise it's erroneous
217 * as compilation only takes place.
220 * Used to describe a string of text that should be matched from
221 * the output of executing the task. If this doesn't match the
222 * task fails. This tag must be provided if T == -execute, otherwise
223 * it's erroneous as compilation only takes place.
226 * Used to specify the INPUT source file to operate on, this must be
227 * provided, this tag is NOT optional
231 * These tags have one-time use, using them more than once will result
232 * in template compilation errors.
234 * Lines beginning with # or // in the template file are comments and
235 * are ignored by the template parser.
237 * Whitespace is optional, with exception to the colon ':' between the
238 * tag and it's assignment value/
240 * The template compiler will detect erronrous tags (optional tags
241 * that need not be set), as well as missing tags, and error accordingly
242 * this will result in the task failing.
246 char *failuremessage;
247 char *successmessage;
257 * This is very much like a compiler code generator :-). This generates
258 * a value from some data observed from the compiler.
260 bool task_template_generate(task_template_t *template, char tag, const char *file, size_t line, const char *value) {
261 char **destval = NULL;
267 case 'D': destval = &template->description; break;
268 case 'F': destval = &template->failuremessage; break;
269 case 'S': destval = &template->successmessage; break;
270 case 'T': destval = &template->proceduretype; break;
271 case 'C': destval = &template->compileflags; break;
272 case 'E': destval = &template->executeflags; break;
273 case 'I': destval = &template->sourcefile; break;
275 con_printmsg(LVL_ERROR, __FILE__, __LINE__, "internal error",
276 "invalid tag `%c:` during code generation\n",
283 * Ensure if for the given tag, there already exists a
287 con_printmsg(LVL_ERROR, file, line, "compile error",
288 "tag `%c:` already assigned value: %s\n",
295 * Strip any whitespace that might exist in the value for assignments
298 if (value && *value && (*value == ' ' || *value == '\t'))
302 * Value will contain a newline character at the end, we need to strip
303 * this otherwise kaboom, seriously, kaboom :P
305 *strrchr(value, '\n')='\0';
308 * Now allocate and set the actual value for the specific tag. Which
309 * was properly selected and can be accessed with *destval.
311 *destval = util_strdup(value);
316 bool task_template_parse(const char *file, task_template_t *template, FILE *fp) {
325 /* top down parsing */
326 while (util_getline(&back, &size, fp) != EOF) {
327 /* skip whitespace */
329 if (*data && (*data == ' ' || *data == '\t'))
334 * Handle comments inside task template files. We're strict
335 * about the language for fun :-)
338 if (data[1] != '/') {
339 con_printmsg(LVL_ERROR, file, line, "template parse error",
340 "invalid character `/`, perhaps you meant `//` ?");
349 * Empty newlines are acceptable as well, so we handle that here
350 * despite being just odd since there should't be that many
351 * empty lines to begin with.
359 * Now begin the actual "tag" stuff. This works as you expect
369 if (data[1] != ':') {
370 con_printmsg(LVL_ERROR, file, line, "template parse error",
371 "expected `:` after `%c`",
376 if (!task_template_generate(template, *data, file, line, &data[3])) {
377 con_printmsg(LVL_ERROR, file, line, "template compile error",
378 "failed to generate for given task\n"
385 * Match requires it's own system since we allow multiple M's
386 * for multi-line matching.
390 char *value = &data[3];
391 if (data[1] != ':') {
392 con_printmsg(LVL_ERROR, file, line, "template parse error",
393 "expected `:` after `%c`",
399 if (value && *value && (*value == ' ' || *value == '\t'))
403 * Value will contain a newline character at the end, we need to strip
404 * this otherwise kaboom, seriously, kaboom :P
406 *strrchr(value, '\n')='\0';
408 vec_push(template->comparematch, util_strdup(value));
414 con_printmsg(LVL_ERROR, file, line, "template parse error",
415 "invalid tag `%c`", *data
418 /* no break required */
421 /* update line and free old sata */
437 * Nullifies the template data: used during initialization of a new
440 void task_template_nullify(task_template_t *template) {
444 template->description = NULL;
445 template->failuremessage = NULL;
446 template->successmessage = NULL;
447 template->proceduretype = NULL;
448 template->compileflags = NULL;
449 template->executeflags = NULL;
450 template->comparematch = NULL;
451 template->sourcefile = NULL;
452 template->tempfilename = NULL;
455 task_template_t *task_template_compile(const char *file, const char *dir) {
456 /* a page should be enough */
458 FILE *tempfile = NULL;
459 task_template_t *template = NULL;
461 memset (fullfile, 0, sizeof(fullfile));
462 snprintf(fullfile, sizeof(fullfile), "%s/%s", dir, file);
464 tempfile = fopen(fullfile, "r");
465 template = mem_a(sizeof(task_template_t));
466 task_template_nullify(template);
469 * Esnure the file even exists for the task, this is pretty useless
473 con_err("template file: %s does not exist or invalid permissions\n",
479 if (!task_template_parse(file, template, tempfile)) {
480 con_err("template parse error: error during parsing\n");
485 * Regardless procedure type, the following tags must exist:
491 if (!template->description) {
492 con_err("template compile error: %s missing `D:` tag\n", file);
495 if (!template->proceduretype) {
496 con_err("template compile error: %s missing `T:` tag\n", file);
499 if (!template->compileflags) {
500 con_err("template compile error: %s missing `C:` tag\n", file);
503 if (!template->sourcefile) {
504 con_err("template compile error: %s missing `I:` tag\n", file);
509 * Now lets compile the template, compilation is really just
510 * the process of validating the input.
512 if (!strcmp(template->proceduretype, "-compile")) {
513 if (template->executeflags)
514 con_err("template compile warning: %s erroneous tag `E:` when only compiling\n", file);
515 if (template->comparematch)
516 con_err("template compile warning: %s erroneous tag `M:` when only compiling\n", file);
518 } else if (!strcmp(template->proceduretype, "-execute")) {
519 if (!template->executeflags) {
520 /* default to $null */
521 template->executeflags = util_strdup("$null");
523 if (!template->comparematch) {
524 con_err("template compile error: %s missing `M:` tag (use `$null` for exclude)\n", file);
527 } else if (!strcmp(template->proceduretype, "-fail")) {
528 if (template->executeflags)
529 con_err("template compile warning: %s erroneous tag `E:` when only failing\n", file);
530 if (template->comparematch)
531 con_err("template compile warning: %s erroneous tag `M:` when only failing\n", file);
534 con_err("template compile error: %s invalid procedure type: %s\n", file, template->proceduretype);
544 * The file might not exist and we jump here when that doesn't happen
545 * so the check to see if it's not null here is required.
554 void task_template_destroy(task_template_t **template) {
558 if ((*template)->description) mem_d((*template)->description);
559 if ((*template)->failuremessage) mem_d((*template)->failuremessage);
560 if ((*template)->successmessage) mem_d((*template)->successmessage);
561 if ((*template)->proceduretype) mem_d((*template)->proceduretype);
562 if ((*template)->compileflags) mem_d((*template)->compileflags);
563 if ((*template)->executeflags) mem_d((*template)->executeflags);
564 if ((*template)->sourcefile) mem_d((*template)->sourcefile);
567 * Delete all allocated string for task template then destroy the
572 for (; i < vec_size((*template)->comparematch); i++)
573 mem_d((*template)->comparematch[i]);
575 vec_free((*template)->comparematch);
579 * Nullify all the template members otherwise NULL comparision
580 * checks will fail if template pointer is reused.
586 * Now comes the task manager, this system allows adding tasks in and out
587 * of a task list. This is the executor of the tasks essentially as well.
590 task_template_t *template;
599 task_t *task_tasks = NULL;
602 * Read a directory and searches for all template files in it
603 * which is later used to run all tests.
605 bool task_propagate(const char *curdir) {
608 struct dirent *files;
609 struct stat directory;
613 dir = opendir(curdir);
615 while ((files = readdir(dir))) {
616 memset (buffer, 0,sizeof(buffer));
617 snprintf(buffer, sizeof(buffer), "%s/%s", curdir, files->d_name);
619 if (stat(buffer, &directory) == -1) {
620 con_err("internal error: stat failed, aborting\n");
624 /* skip directories */
625 if (S_ISDIR(directory.st_mode))
629 * We made it here, which concludes the file/directory is not
630 * actually a directory, so it must be a file :)
632 if (strcmp(files->d_name + strlen(files->d_name) - 5, ".tmpl") == 0) {
633 task_template_t *template = task_template_compile(files->d_name, curdir);
634 char buf[4096]; /* one page should be enough */
637 util_debug("TEST", "compiling task template: %s/%s\n", curdir, files->d_name);
640 con_err("error compiling task template: %s\n", files->d_name);
645 * Generate a temportary file name for the output binary
646 * so we don't trample over an existing one.
648 template->tempfilename = tempnam(curdir, "TMPDAT");
651 * Generate the command required to open a pipe to a process
652 * which will be refered to with a handle in the task for
653 * reading the data from the pipe.
655 memset (buf,0,sizeof(buf));
656 snprintf(buf, sizeof(buf), "%s %s/%s %s -o %s",
657 task_bins[TASK_COMPILE],
659 template->sourcefile,
660 template->compileflags,
661 template->tempfilename
665 * The task template was compiled, now lets create a task from
666 * the template data which has now been propagated.
668 task.template = template;
669 if (!(task.runhandles = task_popen(buf, "r"))) {
670 con_err("error opening pipe to process for test: %s\n", template->description);
675 util_debug("TEST", "executing test: `%s` [%s]\n", template->description, buf);
678 * Open up some file desciptors for logging the stdout/stderr
681 memset (buf,0,sizeof(buf));
682 snprintf(buf, sizeof(buf), "%s.stdout", template->tempfilename);
683 task.stdoutlogfile = util_strdup(buf);
684 if (!(task.stdoutlog = fopen(buf, "w"))) {
685 con_err("error opening %s for stdout\n", buf);
689 memset (buf,0,sizeof(buf));
690 snprintf(buf, sizeof(buf), "%s.stderr", template->tempfilename);
691 task.stderrlogfile = util_strdup(buf);
692 if (!(task.stderrlog = fopen(buf, "w"))) {
693 con_err("error opening %s for stderr\n", buf);
697 vec_push(task_tasks, task);
701 util_debug("TEST", "compiled %d task template files out of %d\n",
702 vec_size(task_tasks),
711 * Removes all temporary 'progs.dat' files created during compilation
714 void task_cleanup(const char *curdir) {
716 struct dirent *files;
719 dir = opendir(curdir);
721 while ((files = readdir(dir))) {
722 memset(buffer, 0, sizeof(buffer));
723 if (strstr(files->d_name, "TMP")) {
724 snprintf(buffer, sizeof(buffer), "%s/%s", curdir, files->d_name);
726 con_err("error removing temporary file: %s\n", buffer);
728 util_debug("TEST", "removed temporary file: %s\n", buffer);
736 * Task precleanup removes any existing temporary files or log files
737 * left behind from a previous invoke of the test-suite.
739 void task_precleanup(const char *curdir) {
741 struct dirent *files;
744 dir = opendir(curdir);
746 while ((files = readdir(dir))) {
747 memset(buffer, 0, sizeof(buffer));
748 if (strstr(files->d_name, "TMP") ||
749 strstr(files->d_name, ".stdout") ||
750 strstr(files->d_name, ".stderr"))
752 snprintf(buffer, sizeof(buffer), "%s/%s", curdir, files->d_name);
754 con_err("error removing temporary file: %s\n", buffer);
756 util_debug("TEST", "removed temporary file: %s\n", buffer);
763 void task_destroy(const char *curdir) {
765 * Free all the data in the task list and finally the list itself
766 * then proceed to cleanup anything else outside the program like
770 for (i = 0; i < vec_size(task_tasks); i++) {
772 * Close any open handles to files or processes here. It's mighty
773 * annoying to have to do all this cleanup work.
775 if (task_tasks[i].runhandles) task_pclose(task_tasks[i].runhandles);
776 if (task_tasks[i].stdoutlog) fclose (task_tasks[i].stdoutlog);
777 if (task_tasks[i].stderrlog) fclose (task_tasks[i].stderrlog);
780 * Only remove the log files if the test actually compiled otherwise
781 * forget about it (or if it didn't compile, and the procedure type
782 * was set to -fail (meaning it shouldn't compile) .. stil remove)
784 if (task_tasks[i].compiled || !strcmp(task_tasks[i].template->proceduretype, "-fail")) {
785 if (remove(task_tasks[i].stdoutlogfile))
786 con_err("error removing stdout log file: %s\n", task_tasks[i].stdoutlogfile);
788 util_debug("TEST", "removed stdout log file: %s\n", task_tasks[i].stdoutlogfile);
790 if (remove(task_tasks[i].stderrlogfile))
791 con_err("error removing stderr log file: %s\n", task_tasks[i].stderrlogfile);
793 util_debug("TEST", "removed stderr log file: %s\n", task_tasks[i].stderrlogfile);
796 /* free util_strdup data for log files */
797 mem_d(task_tasks[i].stdoutlogfile);
798 mem_d(task_tasks[i].stderrlogfile);
800 task_template_destroy(&task_tasks[i].template);
802 vec_free(task_tasks);
805 * Cleanup outside stuff like temporary files.
807 task_cleanup(curdir);
811 * This executes the QCVM task for a specificly compiled progs.dat
812 * using the template passed into it for call-flags and user defined
815 bool task_execute(task_template_t *template, char ***line) {
819 memset (buffer,0,sizeof(buffer));
822 * Drop the execution flags for the QCVM if none where
823 * actually specified.
825 if (!strcmp(template->executeflags, "$null")) {
826 snprintf(buffer, sizeof(buffer), "%s %s",
827 task_bins[TASK_EXECUTE],
828 template->tempfilename
831 snprintf(buffer, sizeof(buffer), "%s %s %s",
832 task_bins[TASK_EXECUTE],
833 template->executeflags,
834 template->tempfilename
838 util_debug("TEST", "executing qcvm: `%s` [%s]\n",
839 template->description,
843 execute = popen(buffer, "r");
848 * Now lets read the lines and compare them to the matches we expect
849 * and handle accordingly.
855 while (util_getline(&data, &size, execute) != EOF) {
856 if (!strcmp(data, "No main function found\n")) {
857 con_err("test failure: `%s` [%s] (No main function found)\n",
858 template->description,
859 (template->failuremessage) ?
860 template->failuremessage : "unknown"
867 * Trim newlines from data since they will just break our
868 * ability to properly validate matches.
870 if (strrchr(data, '\n'))
871 *strrchr(data, '\n') = '\0';
873 if (vec_size(template->comparematch) > compare) {
874 if (strcmp(data, template->comparematch[compare++]))
881 * Copy to output vector for diagnostics if execution match
884 vec_push(*line, data);
898 * This schedualizes all tasks and actually runs them individually
899 * this is generally easy for just -compile variants. For compile and
900 * execution this takes more work since a task needs to be generated
901 * from thin air and executed INLINE.
903 void task_schedualize() {
904 bool execute = false;
911 util_debug("TEST", "found %d tasks, preparing to execute\n", vec_size(task_tasks));
913 for (i = 0; i < vec_size(task_tasks); i++) {
914 util_debug("TEST", "executing task: %d: %s\n", i, task_tasks[i].template->description);
916 * Generate a task from thin air if it requires execution in
919 execute = !!(!strcmp(task_tasks[i].template->proceduretype, "-execute"));
922 * We assume it compiled before we actually compiled :). On error
923 * we change the value
925 task_tasks[i].compiled = true;
928 * Read data from stdout first and pipe that stuff into a log file
929 * then we do the same for stderr.
931 while (util_getline(&data, &size, task_tasks[i].runhandles[1]) != EOF) {
932 fputs(data, task_tasks[i].stdoutlog);
934 if (strstr(data, "failed to open file")) {
935 task_tasks[i].compiled = false;
939 fflush(task_tasks[i].stdoutlog);
941 while (util_getline(&data, &size, task_tasks[i].runhandles[2]) != EOF) {
943 * If a string contains an error we just dissalow execution
946 * TODO: make this more percise, e.g if we print a warning
947 * that refers to a variable named error, or something like
948 * that .. then this will blowup :P
950 if (strstr(data, "error")) {
952 task_tasks[i].compiled = false;
955 fputs(data, task_tasks[i].stderrlog);
956 fflush(task_tasks[i].stdoutlog);
959 if (!task_tasks[i].compiled && strcmp(task_tasks[i].template->proceduretype, "-fail")) {
960 con_err("test failure: `%s` [%s] (failed to compile) see %s.stdout and %s.stderr\n",
961 task_tasks[i].template->description,
962 (task_tasks[i].template->failuremessage) ?
963 task_tasks[i].template->failuremessage : "unknown",
964 task_tasks[i].template->tempfilename,
965 task_tasks[i].template->tempfilename
971 con_out("test succeeded: `%s` [%s]\n",
972 task_tasks[i].template->description,
973 (task_tasks[i].template->successmessage) ?
974 task_tasks[i].template->successmessage : "unknown"
980 * If we made it here that concludes the task is to be executed
981 * in the virtual machine.
983 if (!task_execute(task_tasks[i].template, &match)) {
986 con_err("test failure: `%s` [%s] (invalid results from execution)\n",
987 task_tasks[i].template->description,
988 (task_tasks[i].template->failuremessage) ?
989 task_tasks[i].template->failuremessage : "unknown"
993 * Print nicely formatted expected match lists to console error
994 * handler for the all the given matches in the template file and
995 * what was actually returned from executing.
997 con_err(" Expected From %u Matches: (got %u Matches)\n",
998 vec_size(task_tasks[i].template->comparematch),
1001 for (; d < vec_size(task_tasks[i].template->comparematch); d++) {
1002 char *select = task_tasks[i].template->comparematch[d];
1003 size_t length = 40 - strlen(select);
1005 con_err(" Expected: \"%s\"", select);
1008 con_err("| Got: \"%s\"\n", (d >= vec_size(match)) ? "<<nothing else to compare>>" : match[d]);
1012 * Print the non-expected out (since we are simply not expecting it)
1013 * This will help track down bugs in template files that fail to match
1016 if (vec_size(match) > vec_size(task_tasks[i].template->comparematch)) {
1017 for (d = 0; d < vec_size(match) - vec_size(task_tasks[i].template->comparematch); d++) {
1018 con_err(" Expected: Nothing | Got: \"%s\"\n",
1019 match[d + vec_size(task_tasks[i].template->comparematch)]
1025 for (j = 0; j < vec_size(match); j++)
1030 for (j = 0; j < vec_size(match); j++)
1034 con_out("test succeeded: `%s` [%s]\n",
1035 task_tasks[i].template->description,
1036 (task_tasks[i].template->successmessage) ?
1037 task_tasks[i].template->successmessage : "unknown"
1044 * This is the heart of the whole test-suite process. This cleans up
1045 * any existing temporary files left behind as well as log files left
1046 * behind. Then it propagates a list of tests from `curdir` by scaning
1047 * it for template files and compiling them into tasks, in which it
1048 * schedualizes them (executes them) and actually reports errors and
1049 * what not. It then proceeds to destroy the tasks and return memory
1050 * it's the engine :)
1052 * It returns true of tests could be propagated, otherwise it returns
1055 * It expects con_init() was called before hand.
1057 bool test_perform(const char *curdir) {
1058 task_precleanup(curdir);
1059 if (!task_propagate(curdir)) {
1060 con_err("error: failed to propagate tasks\n");
1061 task_destroy(curdir);
1065 * If we made it here all tasks where propagated from their resultant
1066 * template file. So we can start the FILO scheduler, this has been
1067 * designed in the most thread-safe way possible for future threading
1068 * it's designed to prevent lock contention, and possible syncronization
1072 task_destroy(curdir);
1078 * Fancy GCC-like LONG parsing allows things like --opt=param with
1079 * assignment operator. This is used for redirecting stdout/stderr
1080 * console to specific files of your choice.
1082 static bool parsecmd(const char *optname, int *argc_, char ***argv_, char **out, int ds, bool split) {
1084 char **argv = *argv_;
1086 size_t len = strlen(optname);
1088 if (strncmp(argv[0]+ds, optname, len))
1091 /* it's --optname, check how the parameter is supplied */
1092 if (argv[0][ds+len] == '=') {
1093 *out = argv[0]+ds+len+1;
1097 if (!split || argc < ds) /* no parameter was provided, or only single-arg form accepted */
1100 /* using --opt param */
1107 int main(int argc, char **argv) {
1108 char *redirout = (char*)stdout;
1109 char *redirerr = (char*)stderr;
1114 * Command line option parsing commences now We only need to support
1115 * a few things in the test suite.
1121 if (argv[0][0] == '-') {
1122 if (parsecmd("redirout", &argc, &argv, &redirout, 1, false))
1124 if (parsecmd("redirerr", &argc, &argv, &redirerr, 1, false))
1127 con_change(redirout, redirerr);
1129 if (!strcmp(argv[0]+1, "debug")) {
1133 if (!strcmp(argv[0]+1, "memchk")) {
1137 if (!strcmp(argv[0]+1, "nocolor")) {
1142 con_err("invalid argument %s\n", argv[0]+1);
1146 con_change(redirout, redirerr);
1147 test_perform("tests");