2 libtap - Write tests in C
3 Copyright 2012 Jake Gelbman <gelbman@gmail.com>
4 This file is licensed under the GPLv2 or any later version
15 static int expected_tests = NO_PLAN;
16 static int failed_tests;
17 static int current_test;
18 static char *todo_mesg;
21 vstrdupf (const char *fmt, va_list args) {
28 size = vsnprintf(NULL, 0, fmt, args2) + 2;
31 perror("malloc error");
34 vsprintf(str, fmt, args);
40 tap_plan (int tests, const char *fmt, ...) {
41 expected_tests = tests;
42 if (tests == SKIP_ALL) {
46 why = vstrdupf(fmt, args);
49 note("SKIP %s\n", why);
52 if (tests != NO_PLAN) {
53 printf("1..%d\n", tests);
58 vok_at_loc (const char *file, int line, int test, const char *fmt,
61 char *name = vstrdupf(fmt, args);
64 printf("ok %d", ++current_test);
66 printf(" - %s", name);
70 printf(" %s", todo_mesg);
74 fprintf(stderr, "# Failed ");
76 fprintf(stderr, "(TODO) ");
77 fprintf(stderr, "test ");
79 fprintf(stderr, "'%s'\n# ", name);
80 fprintf(stderr, "at %s line %d.\n", file, line);
89 ok_at_loc (const char *file, int line, int test, const char *fmt, ...) {
92 vok_at_loc(file, line, test, fmt, args);
98 mystrcmp (const char *a, const char *b) {
99 return a == b ? 0 : !a ? -1 : !b ? 1 : strcmp(a, b);
102 #define eq(a, b) (!mystrcmp(a, b))
103 #define ne(a, b) (mystrcmp(a, b))
106 is_at_loc (const char *file, int line, const char *got, const char *expected,
107 const char *fmt, ...)
109 int test = eq(got, expected);
112 vok_at_loc(file, line, test, fmt, args);
115 diag(" got: '%s'", got);
116 diag(" expected: '%s'", expected);
122 isnt_at_loc (const char *file, int line, const char *got, const char *expected,
123 const char *fmt, ...)
125 int test = ne(got, expected);
128 vok_at_loc(file, line, test, fmt, args);
131 diag(" got: '%s'", got);
132 diag(" expected: anything else");
138 cmp_ok_at_loc (const char *file, int line, int a, const char *op, int b,
139 const char *fmt, ...)
141 int test = eq(op, "||") ? a || b
142 : eq(op, "&&") ? a && b
143 : eq(op, "|") ? a | b
144 : eq(op, "^") ? a ^ b
145 : eq(op, "&") ? a & b
146 : eq(op, "==") ? a == b
147 : eq(op, "!=") ? a != b
148 : eq(op, "<") ? a < b
149 : eq(op, ">") ? a > b
150 : eq(op, "<=") ? a <= b
151 : eq(op, ">=") ? a >= b
152 : eq(op, "<<") ? a << b
153 : eq(op, ">>") ? a >> b
154 : eq(op, "+") ? a + b
155 : eq(op, "-") ? a - b
156 : eq(op, "*") ? a * b
157 : eq(op, "/") ? a / b
158 : eq(op, "%") ? a % b
159 : diag("unrecognized operator '%s'", op);
162 vok_at_loc(file, line, test, fmt, args);
173 cmp_mem_at_loc (const char *file, int line, const void *got,
174 const void *expected, size_t n, const char *fmt, ...)
176 int test = !memcmp(got, expected, n);
179 vok_at_loc(file, line, test, fmt, args);
182 const unsigned char *a = got;
183 const unsigned char *b = expected;
186 while (*(a++) == *(b++))
189 /* a and b point to 1 position after first different value */
190 diag(" Difference starts at offset %d", i);
191 diag(" got: '0x%x'", *(--a));
192 diag(" expected: '0x%x'", *(--b));
198 vdiag_to_fh (FILE *fh, const char *fmt, va_list args) {
203 mesg = vstrdupf(fmt, args);
205 for (i = 0; *line; i++) {
207 if (!c || c == '\n') {
209 fprintf(fh, "# %s\n", line);
221 diag (const char *fmt, ...) {
224 vdiag_to_fh(stderr, fmt, args);
230 note (const char *fmt, ...) {
233 vdiag_to_fh(stdout, fmt, args);
241 if (expected_tests == NO_PLAN) {
242 printf("1..%d\n", current_test);
244 else if (current_test != expected_tests) {
245 diag("Looks like you planned %d test%s but ran %d.",
246 expected_tests, expected_tests > 1 ? "s" : "", current_test);
250 diag("Looks like you failed %d test%s of %d run.",
251 failed_tests, failed_tests > 1 ? "s" : "", current_test);
252 if (expected_tests == NO_PLAN)
253 retval = failed_tests;
255 retval = expected_tests - current_test + failed_tests;
261 bail_out (int ignore, const char *fmt, ...) {
264 printf("Bail out! ");
273 tap_skip (int n, const char *fmt, ...) {
277 why = vstrdupf(fmt, args);
280 printf("ok %d ", ++current_test);
281 note("skip %s\n", why);
287 tap_todo (int ignore, const char *fmt, ...) {
290 todo_mesg = vstrdupf(fmt, args);
301 #include <sys/mman.h>
302 #include <sys/param.h>
305 #if defined __APPLE__ || defined BSD
306 #define MAP_ANONYMOUS MAP_ANON
309 /* Create a shared memory int to keep track of whether a piece of code executed
310 dies. to be used in the dies_ok and lives_ok macros. */
312 tap_test_died (int status) {
313 static int *test_died = NULL;
316 test_died = mmap(0, sizeof (int), PROT_READ | PROT_WRITE,
317 MAP_SHARED | MAP_ANONYMOUS, -1, 0);
326 like_at_loc (int for_match, const char *file, int line, const char *got,
327 const char *expected, const char *fmt, ...)
332 int err = regcomp(&re, expected, REG_EXTENDED);
335 regerror(err, &re, errbuf, sizeof errbuf);
336 fprintf(stderr, "Unable to compile regex '%s': %s at %s line %d\n",
337 expected, errbuf, file, line);
340 err = regexec(&re, got, 0, NULL, 0);
342 test = for_match ? !err : err;
344 vok_at_loc(file, line, test, fmt, args);
349 diag(" doesn't match: '%s'", expected);
353 diag(" matches: '%s'", expected);