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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: testrig.c,v 1.4 1999/05/19 19:02:17 mdw Exp $ |
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4 | * |
5 | * Generic test driver |
6 | * |
7 | * (c) 1998 Straylight/Edgeware |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of the mLib utilities library. |
13 | * |
14 | * mLib is free software; you can redistribute it and/or modify |
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15 | * it under the terms of the GNU Library General Public License as |
16 | * published by the Free Software Foundation; either version 2 of the |
17 | * License, or (at your option) any later version. |
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18 | * |
19 | * mLib is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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22 | * GNU Library General Public License for more details. |
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23 | * |
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24 | * You should have received a copy of the GNU Library General Public |
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25 | * License along with mLib; if not, write to the Free |
26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
27 | * MA 02111-1307, USA. |
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28 | */ |
29 | |
30 | /*----- Revision history --------------------------------------------------* |
31 | * |
32 | * $Log: testrig.c,v $ |
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33 | * Revision 1.4 1999/05/19 19:02:17 mdw |
34 | * Aesthetic changes: fix spelling of `initialize'; use uppercase token |
35 | * constants; abandon old double-underscore convention for internal |
36 | * functions and variables. |
37 | * |
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38 | * Revision 1.3 1999/05/06 19:51:35 mdw |
39 | * Reformatted the LGPL notice a little bit. |
40 | * |
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41 | * Revision 1.2 1999/05/05 18:50:31 mdw |
42 | * Change licensing conditions to LGPL. |
43 | * |
44 | * Revision 1.1.1.1 1998/06/17 23:44:42 mdw |
45 | * Initial version of mLib |
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46 | * |
47 | */ |
48 | |
49 | /*----- Header files ------------------------------------------------------*/ |
50 | |
51 | #include <ctype.h> |
52 | #include <errno.h> |
53 | #include <stdio.h> |
54 | #include <stdlib.h> |
55 | #include <string.h> |
56 | |
57 | #include "dstr.h" |
58 | #include "report.h" |
59 | #include "quis.h" |
60 | #include "testrig.h" |
61 | |
62 | /*----- Static variables --------------------------------------------------*/ |
63 | |
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64 | static dstr tok; |
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65 | |
66 | enum { |
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67 | TOK_EOF = 0x100, |
68 | TOK_WORD |
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69 | }; |
70 | |
71 | /*----- Main code ---------------------------------------------------------*/ |
72 | |
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73 | /* --- @decode@ --- * |
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74 | * |
75 | * Arguments: @int tok@ = token type to decode |
76 | * |
77 | * Returns: Pointer to a textual representation of the token. |
78 | * |
79 | * Use: Produces a readable representation of a token. |
80 | */ |
81 | |
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82 | static const char *decode(int t) |
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83 | { |
84 | static char buf[4]; |
85 | |
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86 | switch (t) { |
87 | case TOK_EOF: |
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88 | return ("<eof>"); |
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89 | case TOK_WORD: |
90 | return (tok.buf); |
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91 | default: |
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92 | buf[0] = t; |
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93 | buf[1] = 0; |
94 | return (buf); |
95 | } |
96 | return ("<buggy-program>"); |
97 | } |
98 | |
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99 | /* --- @gettok@ --- * |
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100 | * |
101 | * Arguments: @FILE *fp@ = file handle to read from |
102 | * |
103 | * Returns: Type of token read. |
104 | * |
105 | * Use: Reads a token from the input stream. |
106 | */ |
107 | |
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108 | static int gettok(FILE *fp) |
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109 | { |
110 | int ch; |
111 | |
112 | /* --- Clear the token accumulator --- */ |
113 | |
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114 | dstr_reset(&tok); |
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115 | |
116 | /* --- Prime the lookahead character --- */ |
117 | |
118 | again: |
119 | ch = getc(fp); |
120 | |
121 | /* --- Skip leading whitespace --- */ |
122 | |
123 | while (isspace((unsigned char)ch)) |
124 | ch = getc(fp); |
125 | |
126 | /* --- Trap some special characters --- */ |
127 | |
128 | switch (ch) { |
129 | |
130 | /* --- Comments --- */ |
131 | |
132 | case '#': |
133 | do ch = getc(fp); while (ch != EOF && ch != '\n'); |
134 | goto again; |
135 | |
136 | /* --- End of file --- */ |
137 | |
138 | case EOF: |
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139 | return (TOK_EOF); |
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140 | |
141 | /* --- Quote characters --- */ |
142 | |
143 | case '`': |
144 | ch = '\''; |
145 | case '\'': |
146 | case '\"': { |
147 | int quote = ch; |
148 | |
149 | for (;;) { |
150 | ch = getc(fp); |
151 | if (ch == EOF || ch == quote) |
152 | break; |
153 | if (ch == '\\') { |
154 | ch = getc(fp); |
155 | if (ch == EOF) |
156 | ch = '\\'; |
157 | } |
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158 | DPUTC(&tok, ch); |
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159 | } |
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160 | DPUTZ(&tok); |
161 | return (TOK_WORD); |
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162 | } |
163 | |
164 | /* --- Anything else is either a word or self-delimiting --- */ |
165 | |
166 | default: |
167 | if (isalnum((unsigned char)ch)) { |
168 | for (;;) { |
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169 | DPUTC(&tok, ch); |
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170 | ch = getc(fp); |
171 | if (ch == EOF || |
172 | ch == ';' || |
173 | ch == '\"' || ch == '\'' || ch == '`' || |
174 | isspace((unsigned char)ch)) |
175 | break; |
176 | if (ch == '\\') { |
177 | ch = getc(fp); |
178 | if (ch == EOF) |
179 | ch = '\\'; |
180 | } |
181 | } |
182 | ungetc(ch, fp); |
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183 | DPUTZ(&tok); |
184 | return (TOK_WORD); |
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185 | } else |
186 | return (ch); |
187 | } |
188 | } |
189 | |
190 | /* --- @type_hex@ --- */ |
191 | |
192 | static void cvt_hex(const char *s, dstr *d) |
193 | { |
194 | while (s[0] && s[1]) { |
195 | int x = s[0], y = s[1]; |
196 | if ('0' <= x && x <= '9') x -= '0'; |
197 | else if ('A' <= x && x <= 'F') x -= 'A' - 10; |
198 | else if ('a' <= x && x <= 'f') x -= 'a' - 10; |
199 | else x = 0; |
200 | if ('0' <= y && y <= '9') y -= '0'; |
201 | else if ('A' <= y && y <= 'F') y -= 'A' - 10; |
202 | else if ('a' <= y && y <= 'f') y -= 'a' - 10; |
203 | else y = 0; |
204 | DPUTC(d, (x << 4) + y); |
205 | s += 2; |
206 | } |
207 | } |
208 | |
209 | static void dump_hex(dstr *d, FILE *fp) |
210 | { |
211 | const char *p, *q; |
212 | for (p = d->buf, q = p + d->len; p < q; p++) |
213 | fprintf(fp, "%02x", *(unsigned char *)p); |
214 | } |
215 | |
216 | test_type type_hex = { cvt_hex, dump_hex }; |
217 | |
218 | /* --- @type_string@ --- */ |
219 | |
220 | static void cvt_string(const char *s, dstr *d) |
221 | { |
222 | DPUTS(d, s); |
223 | } |
224 | |
225 | static void dump_string(dstr *d, FILE *fp) |
226 | { |
227 | dstr_write(d, fp); |
228 | } |
229 | |
230 | test_type type_string = { cvt_string, dump_string }; |
231 | |
232 | /* --- @type_int@ --- */ |
233 | |
234 | static void cvt_int(const char *s, dstr *d) |
235 | { |
236 | DENSURE(d, sizeof(long)); |
237 | sscanf(s, "%i", (int *)d->buf + d->len); |
238 | } |
239 | |
240 | static void dump_int(dstr *d, FILE *fp) |
241 | { |
242 | fprintf(fp, "%i", *(int *)(d->buf)); |
243 | } |
244 | |
245 | test_type type_int = { cvt_int, dump_int }; |
246 | |
247 | /* --- @test_run@ --- * |
248 | * |
249 | * Arguments: @int argc@ = number of command line arguments |
250 | * @char *argv[]@ = pointer to command line arguments |
251 | * @const test_chunk chunk[]@ = pointer to chunk definitions |
252 | * @const char *vec@ = name of default test vector file |
253 | * |
254 | * Returns: Doesn't. |
255 | * |
256 | * Use: Runs a set of test vectors to ensure that a component is |
257 | * working properly. |
258 | */ |
259 | |
260 | void test_run(int argc, char *argv[], |
261 | const test_chunk chunk[], |
262 | const char *vec) |
263 | { |
264 | FILE *fp; |
265 | int i; |
266 | const test_chunk *cch; |
267 | dstr dv[TEST_FIELDMAX]; |
268 | int fail = 0, ok = 1; |
269 | int sofar = 0; |
270 | |
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271 | /* --- Silly bits of initialization --- */ |
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272 | |
273 | ego(argv[0]); |
274 | |
275 | for (i = 0; i < TEST_FIELDMAX; i++) |
276 | dstr_create(&dv[i]); |
277 | |
278 | /* --- Parse command line arguments --- */ |
279 | |
280 | { |
281 | const char *p = 0; |
282 | |
283 | i = 0; |
284 | for (;;) { |
285 | if (!p || !*p) { |
286 | if (i >= argc - 1) |
287 | break; |
288 | p = argv[++i]; |
289 | if (strcmp(p, "--") == 0) { |
290 | i++; |
291 | break; |
292 | } |
293 | if (p[0] != '-' || p[1] == 0) |
294 | break; |
295 | p++; |
296 | } |
297 | switch (*p++) { |
298 | case 'h': |
299 | printf("%s test driver\n" |
300 | "Usage: %s [-f FILENAME]\n", QUIS, QUIS); |
301 | exit(0); |
302 | case 'f': |
303 | if (!*p) { |
304 | if (i >= argc - 1) |
305 | die(1, "option `-f' expects an argument"); |
306 | p = argv[++i]; |
307 | } |
308 | vec = p; |
309 | p = 0; |
310 | break; |
311 | default: |
312 | die(1, "option `-%c' unknown", p[-1]); |
313 | break; |
314 | } |
315 | } |
316 | } |
317 | |
318 | /* --- Start parsing from the file --- */ |
319 | |
320 | if ((fp = fopen(vec, "r")) == 0) |
321 | die(1, "couldn't open test vector file `%s': %s", vec, strerror(errno)); |
322 | |
323 | for (;;) { |
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324 | int t = gettok(fp); |
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325 | |
326 | /* --- This is a reasonable place to stop --- */ |
327 | |
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328 | if (t == TOK_EOF) |
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329 | break; |
330 | |
331 | /* --- Pick out the chunk name --- */ |
332 | |
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333 | if (t != TOK_WORD) |
334 | die(1, "expected <word>; found `%s'", decode(t)); |
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335 | |
336 | /* --- Find the right chunk block --- */ |
337 | |
338 | for (cch = chunk; ; cch++) { |
339 | if (!cch->name) |
340 | goto skip_chunk; |
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341 | if (strcmp(tok.buf, cch->name) == 0) |
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342 | break; |
343 | } |
344 | |
345 | /* --- Past the open brace to the first chunk --- */ |
346 | |
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347 | if ((t = gettok(fp)) != '{') |
348 | die(1, "expected '{'; found `%s'", decode(t)); |
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349 | |
350 | /* --- Start on the test data now --- */ |
351 | |
352 | printf("%s: ", cch->name); |
353 | fflush(stdout); |
354 | sofar = 0; |
355 | ok = 1; |
356 | |
357 | for (;;) { |
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358 | t = gettok(fp); |
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359 | |
360 | /* --- Accept a close brace --- */ |
361 | |
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362 | if (t == '}') |
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363 | break; |
364 | |
365 | /* --- Otherwise I expect a list of words --- */ |
366 | |
367 | for (i = 0; cch->f[i]; i++) { |
368 | dstr_reset(&dv[i]); |
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369 | if (t != TOK_WORD) |
370 | die(1, "expected <word>; found `%s'", decode(t)); |
371 | cch->f[i]->cvt(tok.buf, &dv[i]); |
372 | t = gettok(fp); |
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373 | } |
374 | |
375 | /* --- And a terminating semicolon --- */ |
376 | |
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377 | if (t != ';') |
378 | die(1, "expected `;'; found `%s'", decode(t)); |
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379 | |
380 | /* --- Run the test code --- */ |
381 | |
382 | if (!cch->test(dv)) { |
383 | printf("%s: ", cch->name); |
384 | for (i = 0; i < sofar; i++) putchar('.'); |
385 | fail = 1; ok = 0; |
386 | } |
387 | sofar++; |
388 | putchar('.'); |
389 | fflush(stdout); |
390 | } |
391 | |
392 | puts(ok ? " ok" : " failed"); |
393 | fflush(stdout); |
394 | continue; |
395 | |
396 | skip_chunk: |
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397 | if ((t = gettok(fp)) != '{') |
398 | die(1, "expected '{'; found `%s'", decode(t)); |
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399 | for (;;) { |
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400 | t = gettok(fp); |
401 | if (t == '}') |
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402 | break; |
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403 | while (t == TOK_WORD) |
404 | t = gettok(fp); |
405 | if (t != ';') |
406 | die(1, "expected `;'; found `%s'", decode(t)); |
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407 | } |
408 | } |
409 | |
410 | exit(fail); |
411 | } |
412 | |
413 | /*----- That's all, folks -------------------------------------------------*/ |