3 * Test vector output management
5 * (c) 2023 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
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28 /*----- Header files ------------------------------------------------------*/
48 /*----- Common machinery --------------------------------------------------*/
50 /* --- @regdisp@ --- *
52 * Arguments: @unsigned disp@ = a @TVRD_...@ disposition code
54 * Returns: A human-readable adjective describing the register
58 static const char *regdisp(unsigned disp)
61 case TVRD_INPUT: return "input";
62 case TVRD_OUTPUT: return "output";
63 case TVRD_MATCH: return "matched";
64 case TVRD_EXPECT: return "expected";
65 case TVRD_FOUND: return "found";
70 /* --- @getenv_boolean@ --- *
72 * Arguments: @const char *var@ = environment variable name
73 * @int dflt@ = default value
75 * Returns: @0@ if the variable is set to something falseish, @1@ if it's
76 * set to something truish, or @dflt@ otherwise.
79 static int getenv_boolean(const char *var, int dflt)
86 else if (STRCMP(p, ==, "y") || STRCMP(p, ==, "yes") ||
87 STRCMP(p, ==, "t") || STRCMP(p, ==, "true") ||
88 STRCMP(p, ==, "on") || STRCMP(p, ==, "force") ||
91 else if (STRCMP(p, ==, "n") || STRCMP(p, ==, "no") ||
92 STRCMP(p, ==, "f") || STRCMP(p, ==, "false") ||
93 STRCMP(p, ==, "nil") || STRCMP(p, ==, "off") ||
97 moan("ignoring unexpected value `%s' for environment variable `%s'",
103 /* --- @register_maxnamelen@ --- *
105 * Arguments: @const struct tvec_state *tv@ = test vector state
107 * Returns: The maximum length of a register name in the current test.
110 static int register_maxnamelen(const struct tvec_state *tv)
112 const struct tvec_regdef *rd;
115 for (rd = tv->test->regs; rd->name; rd++)
116 { n = strlen(rd->name); if (n > maxlen) maxlen = n; }
120 /*----- Output layout -----------------------------------------------------*/
122 /* We have two main jobs in output layout: trimming trailing blanks; and
123 * adding a prefix to each line.
125 * This is somehow much more complicated than it ought to be.
129 FILE *fp; /* output file */
130 const char *prefix, *pfxtail, *pfxlim; /* prefix pointers */
131 dstr w; /* trailing whitespace */
132 unsigned f; /* flags */
133 #define LYTF_NEWL 1u /* start of output line */
136 /* Support macros. These assume `lyt' is defined as a pointer to the `struct
140 #define SPLIT_RANGE(tail, base, limit) do { \
141 /* Set TAIL to point just after the last nonspace character between \
142 * BASE and LIMIT. If there are no nonspace characters, then set \
143 * TAIL to equal BASE. \
146 for (tail = limit; tail > base && ISSPACE(tail[-1]); tail--); \
149 #define PUT_RANGE(base, limit) do { \
150 /* Write the range of characters between BASE and LIMIT to the output \
151 * file. Return immediately on error. \
154 size_t _n = limit - base; \
155 if (_n && fwrite(base, 1, _n, lyt->fp) < _n) return (-1); \
158 #define PUT_CHAR(ch) do { \
159 /* Write CH to the output. Return immediately on error. */ \
161 if (putc(ch, lyt->fp) == EOF) return (-1); \
164 #define PUT_PREFIX do { \
165 /* Output the prefix, if there is one. Return immediately on error. */ \
167 if (lyt->prefix) PUT_RANGE(lyt->prefix, lyt->pfxlim); \
170 #define PUT_SAVED do { \
171 /* Output the saved trailing blank material in the buffer. */ \
173 size_t _n = lyt->w.len; \
174 if (_n && fwrite(lyt->w.buf, 1, _n, lyt->fp) < _n) return (-1); \
177 #define PUT_PFXINB do { \
178 /* Output the initial nonblank portion of the prefix, if there is \
179 * one. Return immediately on error. \
182 if (lyt->prefix) PUT_RANGE(lyt->prefix, lyt->pfxtail); \
185 #define SAVE_PFXTAIL do { \
186 /* Save the trailing blank portion of the prefix. */ \
189 DPUTM(&lyt->w, lyt->pfxtail, lyt->pfxlim - lyt->pfxtail); \
192 /* --- @set_layout_prefix@ --- *
194 * Arguments: @struct layout *lyt@ = layout state
195 * @const char *prefix@ = new prefix string or null
199 * Use: Change the configured prefix string. The change takes effect
200 * at the start of the next line (or the current line if it's
201 * empty or only whitespace so far).
204 static void set_layout_prefix(struct layout *lyt, const char *prefix)
208 if (!prefix || !*prefix)
209 lyt->prefix = lyt->pfxtail = lyt->pfxlim = 0;
211 lyt->prefix = prefix;
212 l = lyt->pfxlim = prefix + strlen(prefix);
213 SPLIT_RANGE(q, prefix, l); lyt->pfxtail = q;
217 /* --- @init_layout@ --- *
219 * Arguments: @struct layout *lyt@ = layout state to initialize
220 * @FILE *fp@ = output file
221 * @const char *prefix@ = prefix string (or null if empty)
225 * Use: Initialize a layout state.
228 static void init_layout(struct layout *lyt, FILE *fp, const char *prefix)
232 dstr_create(&lyt->w);
233 set_layout_prefix(lyt, prefix);
236 /* --- @destroy_layout@ --- *
238 * Arguments: @struct layout *lyt@ = layout state
239 * @unsigned f@ = flags (@DLF_...@)
243 * Use: Releases a layout state and the resources it holds.
244 * Close the file if @DLF_CLOSE@ is set in @f@; otherwise leave
245 * it open (in case it's @stderr@ or something).
249 static void destroy_layout(struct layout *lyt, unsigned f)
251 if (f&DLF_CLOSE) fclose(lyt->fp);
252 dstr_destroy(&lyt->w);
255 /* --- @layout_char@ --- *
257 * Arguments: @struct layout *lyt@ = layout state
258 * @int ch@ = character to write
260 * Returns: Zero on success, @-1@ on failure.
262 * Use: Write a single character to the output.
265 static int layout_char(struct layout *lyt, int ch)
268 if (lyt->f&LYTF_NEWL) PUT_PFXINB;
269 PUT_CHAR('\n'); lyt->f |= LYTF_NEWL; DRESET(&lyt->w);
270 } else if (isspace(ch))
273 if (lyt->f&LYTF_NEWL) { PUT_PFXINB; lyt->f &= ~LYTF_NEWL; }
274 PUT_SAVED; PUT_CHAR(ch); DRESET(&lyt->w);
279 /* --- @layout_string@ --- *
281 * Arguments: @struct layout *lyt@ = layout state
282 * @const char *p@ = string to write
283 * @size_t sz@ = length of string
285 * Returns: Zero on success, @-1@ on failure.
287 * Use: Write a string to the output.
290 static int layout_string(struct layout *lyt, const char *p, size_t sz)
292 const char *q, *r, *l = p + sz;
294 /* This is rather vexing. There are a small number of jobs to do, but the
295 * logic for deciding which to do when gets rather hairy if, as I've tried
296 * here, one aims to minimize the number of decisions being checked, so
297 * it's worth canning them into macros.
299 * Here, a `blank' is a whitespace character other than newline. The input
300 * buffer consists of one or more `segments', each of which consists of:
302 * * an initial portion, which is either empty or ends with a nonblank
305 * * a suffix which consists only of blanks; and
307 * * an optional newline.
309 * All segments except the last end with a newline.
312 #define SPLIT_SEGMENT do { \
313 /* Determine the bounds of the current segment. If there is a final \
314 * newline, then q is non-null and points to this newline; otherwise, \
315 * q is null. The initial portion of the segment lies between p .. r \
316 * and the blank suffix lies between r .. q (or r .. l if q is null). \
317 * This sounds awkward, but the suffix is only relevant if there is \
321 q = memchr(p, '\n', l - p); SPLIT_RANGE(r, p, q ? q : l); \
324 #define PUT_NONBLANK do { \
325 /* Output the initial portion of the segment. */ \
330 #define PUT_NEWLINE do { \
331 /* Write a newline, and advance to the next segment. */ \
333 PUT_CHAR('\n'); p = q + 1; \
336 #define SAVE_TAIL do { \
337 /* Save the trailing blank portion of the segment in the buffer. \
338 * Assumes that there is no newline, since otherwise the suffix would \
342 DPUTM(&lyt->w, r, l - r); \
345 /* Determine the bounds of the first segment. Handling this is the most
346 * complicated part of this function.
351 /* This is the only segment. We'll handle the whole thing here.
353 * If there's an initial nonblank portion, then we need to write that
354 * out. Furthermore, if we're at the start of the line then we'll need
355 * to write the prefix, and if there's saved blank material then we'll
356 * need to write that. Otherwise, there's only blank stuff, which we
357 * accumulate in the buffer.
359 * If we're at the start of a line here, then put the prefix followed by
360 * any saved whitespace, and then our initial nonblank portion. Then
361 * save our new trailing space.
365 if (lyt->f&LYTF_NEWL) { PUT_PREFIX; lyt->f &= ~LYTF_NEWL; }
366 PUT_SAVED; PUT_NONBLANK; DRESET(&lyt->w);
372 /* There is at least one more segment, so we know that there'll be a line
376 if (lyt->f&LYTF_NEWL) PUT_PREFIX;
377 PUT_SAVED; PUT_NONBLANK;
378 } else if (lyt->f&LYTF_NEWL)
380 PUT_NEWLINE; DRESET(&lyt->w);
383 /* Main loop over whole segments with trailing newlines. For each one, we
384 * know that we're starting at the beginning of a line and there's a final
385 * newline, so we write the initial prefix and drop the trailing blanks.
388 if (r > p) { PUT_PREFIX; PUT_NONBLANK; }
394 /* At the end, there's no final newline. If there's nonblank material,
395 * then we can write the prefix and the nonblank stuff. Otherwise, stash
396 * the blank stuff (including the trailing blanks of the prefix) and leave
397 * the newline flag set.
399 if (r > p) { PUT_PREFIX; PUT_NONBLANK; lyt->f &= ~LYTF_NEWL; }
400 else { lyt->f |= LYTF_NEWL; SAVE_PFXTAIL; }
419 /*----- Human-readable output ---------------------------------------------*/
421 /* Attributes for colour output. This should be done better, but @terminfo@
424 * An attribute byte holds a foreground colour in the low nibble, a
425 * background colour in the next nibble, and some flags in the next few
426 * bits. A colour is expressed in classic 1-bit-per-channel style, with red,
427 * green, and blue in bits 0, 1, and 2, and a `bright' flag in bit 3.
429 #define HAF_FGMASK 0x0f /* foreground colour mask */
430 #define HAF_FGSHIFT 0 /* foreground colour shift */
431 #define HAF_BGMASK 0xf0 /* background colour mask */
432 #define HAF_BGSHIFT 4 /* background colour shift */
433 #define HAF_FG 256u /* set foreground? */
434 #define HAF_BG 512u /* set background? */
435 #define HAF_BOLD 1024u /* set bold? */
436 #define HCOL_BLACK 0u /* colour codes... */
438 #define HCOL_GREEN 2u
439 #define HCOL_YELLOW 3u
441 #define HCOL_MAGENTA 5u
443 #define HCOL_WHITE 7u
444 #define HCF_BRIGHT 8u /* bright colour flag */
445 #define HFG(col) (HAF_FG | (HCOL_##col) << HAF_FGSHIFT) /* set foreground */
446 #define HBG(col) (HAF_BG | (HCOL_##col) << HAF_BGSHIFT) /* set background */
448 /* Predefined attributes. */
449 #define HA_PLAIN 0 /* nothing special: terminal defaults */
450 #define HA_LOC (HFG(CYAN)) /* filename or line number */
451 #define HA_LOCSEP (HFG(BLUE)) /* location separator `:' */
452 #define HA_ERR (HFG(MAGENTA) | HAF_BOLD) /* error messages */
453 #define HA_NOTE (HFG(YELLOW)) /* notices */
454 #define HA_UNKLEV (HFG(WHITE) | HBG(RED) | HAF_BOLD) /* unknown level */
455 #define HA_UNSET (HFG(YELLOW)) /* register not set */
456 #define HA_FOUND (HFG(RED)) /* incorrect output value */
457 #define HA_EXPECT (HFG(GREEN)) /* what the value should have been */
458 #define HA_WIN (HFG(GREEN)) /* reporting success */
459 #define HA_LOSE (HFG(RED) | HAF_BOLD) /* reporting failure */
460 #define HA_XFAIL (HFG(BLUE) | HAF_BOLD) /* reporting expected failure */
461 #define HA_SKIP (HFG(YELLOW)) /* reporting a skipped test/group */
463 /* Scoreboard indicators. */
464 #define HSB_WIN '.' /* test passed */
465 #define HSB_LOSE 'x' /* test failed */
466 #define HSB_XFAIL 'o' /* test failed expectedly */
467 #define HSB_SKIP '_' /* test wasn't run */
469 struct human_output {
470 struct tvec_output _o; /* output base class */
471 struct tvec_state *tv; /* stashed testing state */
472 struct layout lyt; /* output layout */
473 char *outbuf; size_t outsz; /* buffer for formatted output */
474 dstr scoreboard; /* history of test group results */
475 unsigned attr; /* current terminal attributes */
476 int maxlen; /* longest register name */
477 unsigned f; /* flags */
478 #define HOF_TTY 1u /* writing to terminal */
479 #define HOF_DUPERR 2u /* duplicate errors to stderr */
480 #define HOF_COLOUR 4u /* print in angry fruit salad */
481 #define HOF_PROGRESS 8u /* progress display is active */
484 /* --- @set_colour@ --- *
486 * Arguments: @FILE *fp@ = output stream to write on
487 * @int *sep_inout@ = where to maintain separator
488 * @const char *norm@ = prefix for normal colour
489 * @const char *bright@ = prefix for bright colour
490 * @unsigned colour@ = four bit colour code
494 * Use: Write to the output stream @fp@, the current character at
495 * @*sep_inout@, if that's not zero, followed by either @norm@
496 * or @bright@, according to whether the @HCF_BRIGHT@ flag is
497 * set in @colour@, followed by the plain colour code from
498 * @colour@; finally, update @*sep_inout@ to be a `%|;|%'.
500 * This is an internal subroutine for @setattr@ below.
503 static void set_colour(FILE *fp, int *sep_inout,
504 const char *norm, const char *bright,
507 if (*sep_inout) putc(*sep_inout, fp);
508 fprintf(fp, "%s%d", colour&HCF_BRIGHT ? bright : norm, colour&7);
512 /* --- @setattr@ --- *
514 * Arguments: @struct human_output *h@ = output state
515 * @unsigned attr@ = attribute code to set
519 * Use: Send a control sequence to the output stream so that
520 * subsequent text is printed with the given attributes.
522 * Some effort is taken to avoid unnecessary control sequences.
523 * In particular, if @attr@ matches the current terminal
524 * settings already, then nothing is written.
527 static void setattr(struct human_output *h, unsigned attr)
529 unsigned diff = h->attr ^ attr;
532 /* If there's nothing to do, we might as well stop now. */
533 if (!diff || !(h->f&HOF_COLOUR)) return;
535 /* Start on the control command. */
536 fputs("\x1b[", h->lyt.fp);
538 /* Change the boldness if necessary. */
540 if (attr&HAF_BOLD) putc('1', h->lyt.fp);
541 else { putc('0', h->lyt.fp); diff = h->attr; }
545 /* Change the foreground colour if necessary. */
546 if (diff&(HAF_FG | HAF_FGMASK)) {
548 set_colour(h->lyt.fp, &sep, "3", "9",
549 (attr&HAF_FGMASK) >> HAF_FGSHIFT);
551 if (sep) putc(sep, h->lyt.fp);
552 fputs("39", h->lyt.fp); sep = ';';
556 /* Change the background colour if necessary. */
557 if (diff&(HAF_BG | HAF_BGMASK)) {
559 set_colour(h->lyt.fp, &sep, "4", "10",
560 (attr&HAF_BGMASK) >> HAF_BGSHIFT);
562 if (sep) putc(sep, h->lyt.fp);
563 fputs("49", h->lyt.fp); sep = ';';
567 /* Terminate the control command and save the new attributes. */
568 putc('m', h->lyt.fp); h->attr = attr;
571 /* --- @clear_progress@ --- *
573 * Arguments: @struct human_output *h@ = output state
577 * Use: Remove the progress display from the terminal.
579 * If the progress display isn't active then do nothing.
582 static void clear_progress(struct human_output *h)
586 if (h->f&HOF_PROGRESS) {
587 n = strlen(h->tv->test->name) + 2 + h->scoreboard.len;
588 for (i = 0; i < n; i++) fputs("\b \b", h->lyt.fp);
589 h->f &= ~HOF_PROGRESS;
593 /* --- @write_scoreboard_char@ --- *
595 * Arguments: @struct human_output *h@ = output state
596 * @int ch@ = scoreboard character to print
600 * Use: Write a scoreboard character, indicating the outcome of a
601 * test, to the output stream, with appropriate highlighting.
604 static void write_scoreboard_char(struct human_output *h, int ch)
607 case HSB_LOSE: setattr(h, HA_LOSE); break;
608 case HSB_SKIP: setattr(h, HA_SKIP); break;
609 case HSB_XFAIL: setattr(h, HA_XFAIL); break;
610 default: setattr(h, HA_PLAIN); break;
612 putc(ch, h->lyt.fp); setattr(h, HA_PLAIN);
615 /* --- @show_progress@ --- *
617 * Arguments: @struct human_output *h@ = output state
621 * Use: Show the progress display, with the record of outcomes for
622 * the current test group.
624 * If the progress display is already active, or the output
625 * stream is not interactive, then nothing happens.
628 static void show_progress(struct human_output *h)
630 struct tvec_state *tv = h->tv;
633 if (tv->test && (h->f&HOF_TTY) && !(h->f&HOF_PROGRESS)) {
634 fprintf(h->lyt.fp, "%s: ", tv->test->name);
635 if (!(h->f&HOF_COLOUR))
636 dstr_write(&h->scoreboard, h->lyt.fp);
637 else for (p = h->scoreboard.buf, l = p + h->scoreboard.len; p < l; p++)
638 write_scoreboard_char(h, *p);
639 fflush(h->lyt.fp); h->f |= HOF_PROGRESS;
643 /* --- @human_writech@, @human_write@, @human_writef@ --- *
645 * Arguments: @void *go@ = output sink, secretly a @struct human_output@
646 * @int ch@ = character to write
647 * @const char *@p@, @size_t sz@ = string (with explicit length)
649 * @const char *p, ...@ = format control string and arguments to
654 * Use: Write characters, strings, or formatted strings to the
655 * output, applying appropriate layout.
657 * For the human output driver, the layout machinery just strips
661 static int human_writech(void *go, int ch)
662 { struct human_output *h = go; return (layout_char(&h->lyt, ch)); }
664 static int human_writem(void *go, const char *p, size_t sz)
665 { struct human_output *h = go; return (layout_string(&h->lyt, p, sz)); }
667 static int human_nwritef(void *go, size_t maxsz, const char *p, ...)
669 struct human_output *h = go;
674 n = gprintf_memputf(&h->outbuf, &h->outsz, maxsz, p, ap);
676 return (layout_string(&h->lyt, h->outbuf, n));
679 static const struct gprintf_ops human_printops =
680 { human_writech, human_writem, human_nwritef };
682 /* --- @human_bsession@ --- *
684 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
686 * @struct tvec_state *tv@ = the test state producing output
690 * Use: Begin a test session.
692 * The human driver just records the test state for later
696 static void human_bsession(struct tvec_output *o, struct tvec_state *tv)
697 { struct human_output *h = (struct human_output *)o; h->tv = tv; }
699 /* --- @report_unusual@ --- *
701 * Arguments: @struct human_output *h@ = output sink
702 * @unsigned nxfail, nskip@ = number of expected failures and
707 * Use: Write (directly on the output stream) a note about expected
708 * failures and/or skipped tests, if there were any.
711 static void report_unusual(struct human_output *h,
712 unsigned nxfail, unsigned nskip)
714 const char *sep = " (";
719 fprintf(h->lyt.fp, "%s%u ", sep, nxfail);
720 setattr(h, HA_XFAIL);
721 fprintf(h->lyt.fp, "expected %s", nxfail == 1 ? "failure" : "failures");
722 setattr(h, HA_PLAIN);
723 sep = ", "; f |= f_any;
727 fprintf(h->lyt.fp, "%s%u ", sep, nskip);
728 setattr(h, HA_SKIP); fputs("skipped", h->lyt.fp); setattr(h, HA_PLAIN);
729 sep = ", "; f |= f_any;
732 if (f&f_any) fputc(')', h->lyt.fp);
737 /* --- @human_esession@ --- *
739 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
742 * Returns: Suggested exit code.
744 * Use: End a test session.
746 * The human driver prints a final summary of the rest results
747 * and returns a suitable exit code.
750 static int human_esession(struct tvec_output *o)
752 struct human_output *h = (struct human_output *)o;
753 struct tvec_state *tv = h->tv;
755 all_win = tv->all[TVOUT_WIN], grps_win = tv->grps[TVOUT_WIN],
756 all_xfail = tv->all[TVOUT_XFAIL],
757 all_lose = tv->all[TVOUT_LOSE], grps_lose = tv->grps[TVOUT_LOSE],
758 all_skip = tv->all[TVOUT_SKIP], grps_skip = tv->grps[TVOUT_SKIP],
759 all_pass = all_win + all_xfail, all_run = all_pass + all_lose,
760 grps_run = grps_win + grps_lose;
763 setattr(h, HA_WIN); fputs("PASSED", h->lyt.fp); setattr(h, HA_PLAIN);
764 fprintf(h->lyt.fp, " %s%u %s",
765 !(all_skip || grps_skip) ? "all " : "",
766 all_pass, all_pass == 1 ? "test" : "tests");
767 report_unusual(h, all_xfail, all_skip);
768 fprintf(h->lyt.fp, " in %u %s",
769 grps_win, grps_win == 1 ? "group" : "groups");
770 report_unusual(h, 0, grps_skip);
772 setattr(h, HA_LOSE); fputs("FAILED", h->lyt.fp); setattr(h, HA_PLAIN);
773 fprintf(h->lyt.fp, " %u out of %u %s",
774 all_lose, all_run, all_run == 1 ? "test" : "tests");
775 report_unusual(h, all_xfail, all_skip);
776 fprintf(h->lyt.fp, " in %u out of %u %s",
777 grps_lose, grps_run, grps_run == 1 ? "group" : "groups");
778 report_unusual(h, 0, grps_skip);
780 fputc('\n', h->lyt.fp);
782 if (tv->f&TVSF_ERROR) {
783 setattr(h, HA_ERR); fputs("ERRORS", h->lyt.fp); setattr(h, HA_PLAIN);
784 fputs(" found in input; tests may not have run correctly\n", h->lyt.fp);
787 h->tv = 0; return (tv->f&TVSF_ERROR ? 2 : all_lose ? 1 : 0);
790 /* --- @human_bgroup@ --- *
792 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
797 * Use: Begin a test group.
799 * The human driver determines the length of the longest
800 * register name, resets the group progress scoreboard, and
801 * activates the progress display.
804 static void human_bgroup(struct tvec_output *o)
806 struct human_output *h = (struct human_output *)o;
808 h->maxlen = register_maxnamelen(h->tv);
809 dstr_reset(&h->scoreboard); show_progress(h);
812 /* --- @human_skipgroup@ --- *
814 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
816 * @const char *excuse@, @va_list *ap@ = reason for skipping the
821 * Use: Report that a test group is being skipped.
823 * The human driver just reports the situation to its output
827 static void human_skipgroup(struct tvec_output *o,
828 const char *excuse, va_list *ap)
830 struct human_output *h = (struct human_output *)o;
833 fprintf(h->lyt.fp, "%s ", h->tv->test->name);
835 show_progress(h); h->f &= ~HOF_PROGRESS;
836 if (h->scoreboard.len) putc(' ', h->lyt.fp);
838 setattr(h, HA_SKIP); fputs("skipped", h->lyt.fp); setattr(h, HA_PLAIN);
839 if (excuse) { fputs(": ", h->lyt.fp); vfprintf(h->lyt.fp, excuse, *ap); }
840 fputc('\n', h->lyt.fp);
843 /* --- @human_egroup@ --- *
845 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
850 * Use: Report that a test group has finished.
852 * The human driver reports a summary of the group's tests.
855 static void human_egroup(struct tvec_output *o)
857 struct human_output *h = (struct human_output *)o;
858 struct tvec_state *tv = h->tv;
859 unsigned win = tv->curr[TVOUT_WIN], xfail = tv->curr[TVOUT_XFAIL],
860 lose = tv->curr[TVOUT_LOSE], skip = tv->curr[TVOUT_SKIP],
861 run = win + lose + xfail;
863 if (h->f&HOF_TTY) h->f &= ~HOF_PROGRESS;
864 else fprintf(h->lyt.fp, "%s:", h->tv->test->name);
867 fprintf(h->lyt.fp, " %u/%u ", lose, run);
868 setattr(h, HA_LOSE); fputs("FAILED", h->lyt.fp); setattr(h, HA_PLAIN);
869 report_unusual(h, xfail, skip);
871 fputc(' ', h->lyt.fp); setattr(h, HA_WIN);
872 fputs("ok", h->lyt.fp); setattr(h, HA_PLAIN);
873 report_unusual(h, xfail, skip);
875 fputc('\n', h->lyt.fp);
878 /* --- @human_btest@ --- *
880 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
885 * Use: Report that a test is starting.
887 * The human driver makes sure the progress display is active.
890 static void human_btest(struct tvec_output *o)
891 { struct human_output *h = (struct human_output *)o; show_progress(h); }
893 /* --- @report_location@ --- *
895 * Arguments: @struct human_output *h@ = output state
896 * @FILE *fp@ = stream to write the location on
897 * @const char *file@ = filename
898 * @unsigned lno@ = line number
902 * Use: Print the filename and line number to the output stream @fp@.
903 * Also, if appropriate, print interleaved highlighting control
904 * codes to our usual output stream. If @file@ is null then do
908 static void report_location(struct human_output *h, FILE *fp,
909 const char *file, unsigned lno)
914 /* We emit highlighting if @fp@ is our usual output stream, or the
915 * duplicate-errors flag is clear indicating that (we assume) they're
916 * secretly going to the same place anyway. If they're different streams,
917 * though, we have to be careful to keep the highlighting and the actual
923 else if (fp != h->lyt.fp && (h->f&HOF_DUPERR))
924 fprintf(fp, "%s:%u: ", file, lno);
926 if (fp != h->lyt.fp) f |= f_flush;
928 #define FLUSH(fp) do if (f&f_flush) fflush(fp); while (0)
930 setattr(h, HA_LOC); FLUSH(h->lyt.fp);
931 fputs(file, fp); FLUSH(fp);
932 setattr(h, HA_LOCSEP); FLUSH(h->lyt.fp);
933 fputc(':', fp); FLUSH(fp);
934 setattr(h, HA_LOC); FLUSH(h->lyt.fp);
935 fprintf(fp, "%u", lno); FLUSH(fp);
936 setattr(h, HA_LOCSEP); FLUSH(h->lyt.fp);
937 fputc(':', fp); FLUSH(fp);
938 setattr(h, HA_PLAIN); FLUSH(h->lyt.fp);
947 /* --- @human_outcome@, @human_skip@, @human_fail@ --- *
949 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
951 * @unsigned attr@ = attribute to apply to the outcome
952 * @const char *outcome@ = outcome string to report
953 * @const char *detail@, @va_list *ap@ = a detail message
954 * @const char *excuse@, @va_list *ap@ = reason for skipping the
959 * Use: Report that a test has been skipped or failed.
961 * The human driver reports the situation on its output stream.
964 static void human_outcome(struct tvec_output *o,
965 unsigned attr, const char *outcome,
966 const char *detail, va_list *ap)
968 struct human_output *h = (struct human_output *)o;
969 struct tvec_state *tv = h->tv;
972 report_location(h, h->lyt.fp, tv->infile, tv->test_lno);
973 fprintf(h->lyt.fp, "`%s' ", tv->test->name);
974 setattr(h, attr); fputs(outcome, h->lyt.fp); setattr(h, HA_PLAIN);
975 if (detail) { fputs(": ", h->lyt.fp); vfprintf(h->lyt.fp, detail, *ap); }
976 fputc('\n', h->lyt.fp);
979 static void human_skip(struct tvec_output *o,
980 const char *excuse, va_list *ap)
981 { human_outcome(o, HA_SKIP, "skipped", excuse, ap); }
982 static void human_fail(struct tvec_output *o,
983 const char *detail, va_list *ap)
984 { human_outcome(o, HA_LOSE, "FAILED", detail, ap); }
986 /* --- @human_dumpreg@ --- *
988 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
990 * @unsigned disp@ = register disposition
991 * @const union tvec_regval *rv@ = register value
992 * @const struct tvec_regdef *rd@ = register definition
996 * Use: Dump a register.
998 * The human driver applies highlighting to mismatching output
999 * registers, but otherwise delegates to the register type
1000 * handler and the layout machinery.
1003 static void human_dumpreg(struct tvec_output *o,
1004 unsigned disp, const union tvec_regval *rv,
1005 const struct tvec_regdef *rd)
1007 struct human_output *h = (struct human_output *)o;
1008 const char *ds = regdisp(disp); int n = strlen(ds) + strlen(rd->name);
1011 gprintf(&human_printops, h, "%*s%s %s = ",
1012 10 + h->maxlen - n, "", ds, rd->name);
1013 if (h->f&HOF_COLOUR) {
1014 if (!rv) setattr(h, HA_UNSET);
1015 else if (disp == TVRD_FOUND) setattr(h, HA_FOUND);
1016 else if (disp == TVRD_EXPECT) setattr(h, HA_EXPECT);
1018 if (!rv) gprintf(&human_printops, h, "#unset");
1019 else rd->ty->dump(rv, rd, 0, &human_printops, h);
1020 setattr(h, HA_PLAIN); layout_char(&h->lyt, '\n');
1023 /* --- @human_etest@ --- *
1025 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1027 * @unsigned outcome@ = the test outcome
1031 * Use: Report that a test has finished.
1033 * The human driver reactivates the progress display, if
1034 * necessary, and adds a new character for the completed test.
1037 static void human_etest(struct tvec_output *o, unsigned outcome)
1039 struct human_output *h = (struct human_output *)o;
1045 case TVOUT_WIN: ch = HSB_WIN; break;
1046 case TVOUT_LOSE: ch = HSB_LOSE; break;
1047 case TVOUT_XFAIL: ch = HSB_XFAIL; break;
1048 case TVOUT_SKIP: ch = HSB_SKIP; break;
1051 dstr_putc(&h->scoreboard, ch);
1052 write_scoreboard_char(h, ch); fflush(h->lyt.fp);
1056 /* --- @human_bbench@ --- *
1058 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1060 * @const char *ident@ = identifying register values
1061 * @unsigned unit@ = measurement unit (@TVBU_...@)
1065 * Use: Report that a benchmark has started.
1067 * The human driver just prints the start of the benchmark
1071 static void human_bbench(struct tvec_output *o,
1072 const char *ident, unsigned unit)
1074 struct human_output *h = (struct human_output *)o;
1075 struct tvec_state *tv = h->tv;
1078 fprintf(h->lyt.fp, "%s: %s: ", tv->test->name, ident); fflush(h->lyt.fp);
1081 /* --- @human_ebench@ --- *
1083 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1085 * @const char *ident@ = identifying register values
1086 * @unsigned unit@ = measurement unit (@TVBU_...@)
1087 * @const struct bench_timing *tm@ = measurement
1091 * Use: Report a benchmark's results
1093 * The human driver just delegates to the default benchmark
1094 * reporting, via the layout machinery.
1097 static void human_ebench(struct tvec_output *o,
1098 const char *ident, unsigned unit,
1099 const struct bench_timing *tm)
1101 struct human_output *h = (struct human_output *)o;
1103 tvec_benchreport(&human_printops, h, unit, tm);
1104 fputc('\n', h->lyt.fp);
1107 /* --- @human_report@ --- *
1109 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1111 * @unsigned level@ = message level (@TVLEV_...@)
1112 * @const char *msg@, @va_list *ap@ = format string and
1117 * Use: Report a message to the user.
1119 * The human driver arranges to show the message on @stderr@ as
1120 * well as the usual output, with a certain amount of
1121 * intelligence in case they're both actually the same device.
1124 static void human_report(struct tvec_output *o, unsigned level,
1125 const char *msg, va_list *ap)
1127 struct human_output *h = (struct human_output *)o;
1128 struct tvec_state *tv = h->tv;
1129 const char *levstr; unsigned levattr;
1133 #define f_progress 2u
1135 dstr_vputf(&d, msg, ap); dstr_putc(&d, '\n');
1138 #define CASE(tag, name, val) \
1139 case TVLEV_##tag: levstr = name; levattr = HA_##tag; break;
1141 default: levstr = "??"; levattr = HA_UNKLEV; break;
1144 if (h->lyt.fp != stderr && !(h->f&HOF_DUPERR)) f |= f_flush;
1146 #define FLUSH do if (f&f_flush) fflush(h->lyt.fp); while (0)
1148 if (h->f^HOF_PROGRESS)
1149 { clear_progress(h); fflush(h->lyt.fp); f |= f_progress; }
1150 fprintf(stderr, "%s: ", QUIS);
1151 report_location(h, stderr, tv->infile, tv->lno);
1152 setattr(h, levattr); FLUSH; fputs(levstr, stderr); setattr(h, 0); FLUSH;
1153 fputs(": ", stderr); fwrite(d.buf, 1, d.len, stderr);
1157 if (h->f&HOF_DUPERR) {
1158 report_location(h, h->lyt.fp, tv->infile, tv->lno);
1159 fprintf(h->lyt.fp, "%s: ", levstr);
1160 fwrite(d.buf, 1, d.len, h->lyt.fp);
1162 if (f&f_progress) show_progress(h);
1168 /* --- @human_destroy@ --- *
1170 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1175 * Use: Release the resources held by the output driver.
1178 static void human_destroy(struct tvec_output *o)
1180 struct human_output *h = (struct human_output *)o;
1182 destroy_layout(&h->lyt,
1183 h->lyt.fp == stdout || h->lyt.fp == stderr ? 0 : DLF_CLOSE);
1184 dstr_destroy(&h->scoreboard);
1185 xfree(h->outbuf); xfree(h);
1188 static const struct tvec_outops human_ops = {
1189 human_bsession, human_esession,
1190 human_bgroup, human_skipgroup, human_egroup,
1191 human_btest, human_skip, human_fail, human_dumpreg, human_etest,
1192 human_bbench, human_ebench,
1197 /* --- @tvec_humanoutput@ --- *
1199 * Arguments: @FILE *fp@ = output file to write on
1201 * Returns: An output formatter.
1203 * Use: Return an output formatter which writes on @fp@ with the
1204 * expectation that a human will be watching and interpreting
1205 * the output. If @fp@ denotes a terminal, the display shows a
1206 * `scoreboard' indicating the outcome of each test case
1207 * attempted, and may in addition use colour and other
1211 struct tvec_output *tvec_humanoutput(FILE *fp)
1213 struct human_output *h;
1216 h = xmalloc(sizeof(*h)); h->_o.ops = &human_ops;
1217 h->f = 0; h->attr = 0;
1219 init_layout(&h->lyt, fp, 0);
1220 h->outbuf = 0; h->outsz = 0;
1222 switch (getenv_boolean("TVEC_TTY", -1)) {
1223 case 1: h->f |= HOF_TTY; break;
1226 if (isatty(fileno(fp))) h->f |= HOF_TTY;
1229 switch (getenv_boolean("TVEC_COLOUR", -1)) {
1230 case 1: h->f |= HOF_COLOUR; break;
1235 if (p && STRCMP(p, !=, "dumb")) h->f |= HOF_COLOUR;
1240 if (fp != stderr && (fp != stdout || !(h->f&HOF_TTY))) h->f |= HOF_DUPERR;
1241 dstr_create(&h->scoreboard);
1245 /*----- Perl's `Test Anything Protocol' -----------------------------------*/
1248 struct tvec_output _o; /* output base class */
1249 struct tvec_state *tv; /* stashed testing state */
1250 struct layout lyt; /* output layout */
1251 char *outbuf; size_t outsz; /* buffer for formatted output */
1252 unsigned grpix, testix; /* group and test indices */
1253 unsigned previx; /* previously reported test index */
1254 int maxlen; /* longest register name */
1257 /* --- @tap_writech@, @tap_write@, @tap_writef@ --- *
1259 * Arguments: @void *go@ = output sink, secretly a @struct tap_output@
1260 * @int ch@ = character to write
1261 * @const char *@p@, @size_t sz@ = string (with explicit length)
1263 * @const char *p, ...@ = format control string and arguments to
1268 * Use: Write characters, strings, or formatted strings to the
1269 * output, applying appropriate layout.
1271 * For the TAP output driver, the layout machinery prefixes each
1272 * line with ` ## ' and strips trailing spaces.
1275 static int tap_writech(void *go, int ch)
1276 { struct tap_output *t = go; return (layout_char(&t->lyt, ch)); }
1278 static int tap_writem(void *go, const char *p, size_t sz)
1279 { struct tap_output *t = go; return (layout_string(&t->lyt, p, sz)); }
1281 static int tap_nwritef(void *go, size_t maxsz, const char *p, ...)
1283 struct tap_output *t = go;
1288 n = gprintf_memputf(&t->outbuf, &t->outsz, maxsz, p, ap);
1290 return (layout_string(&t->lyt, t->outbuf, n));
1293 static const struct gprintf_ops tap_printops =
1294 { tap_writech, tap_writem, tap_nwritef };
1296 /* --- @tap_bsession@ --- *
1298 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1300 * @struct tvec_state *tv@ = the test state producing output
1304 * Use: Begin a test session.
1306 * The TAP driver records the test state for later reference,
1307 * initializes the group index counter, and prints the version
1311 static void tap_bsession(struct tvec_output *o, struct tvec_state *tv)
1313 struct tap_output *t = (struct tap_output *)o;
1315 t->tv = tv; t->grpix = 0;
1316 fputs("TAP version 13\n", t->lyt.fp); /* but secretly 14 really */
1319 /* --- @tap_esession@ --- *
1321 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1324 * Returns: Suggested exit code.
1326 * Use: End a test session.
1328 * The TAP driver prints a final summary of the rest results
1329 * and returns a suitable exit code. If errors occurred, it
1330 * instead prints a `Bail out!' line forcing the reader to
1334 static int tap_esession(struct tvec_output *o)
1336 struct tap_output *t = (struct tap_output *)o;
1337 struct tvec_state *tv = t->tv;
1339 if (tv->f&TVSF_ERROR) {
1341 "Errors found in input; tests may not have run correctly\n",
1346 fprintf(t->lyt.fp, "1..%u\n", t->grpix);
1347 t->tv = 0; return (tv->all[TVOUT_LOSE] ? 1 : 0);
1350 /* --- @tap_bgroup@ --- *
1352 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1357 * Use: Begin a test group.
1359 * The TAP driver determines the length of the longest
1360 * register name, resets the group progress scoreboard, and
1361 * activates the progress display.
1364 static void tap_bgroup(struct tvec_output *o)
1366 struct tap_output *t = (struct tap_output *)o;
1367 struct tvec_state *tv = t->tv;
1369 t->grpix++; t->testix = t->previx = 0;
1370 t->maxlen = register_maxnamelen(t->tv);
1371 fprintf(t->lyt.fp, "# Subtest: %s\n", tv->test->name);
1374 /* --- @tap_skipgroup@ --- *
1376 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1378 * @const char *excuse@, @va_list *ap@ = reason for skipping the
1383 * Use: Report that a test group is being skipped.
1385 * The TAP driver just reports the situation to its output
1389 static void tap_skipgroup(struct tvec_output *o,
1390 const char *excuse, va_list *ap)
1392 struct tap_output *t = (struct tap_output *)o;
1394 fprintf(t->lyt.fp, " 1..%u\n", t->testix);
1395 fprintf(t->lyt.fp, "ok %u %s # SKIP", t->grpix, t->tv->test->name);
1396 if (excuse) { fputc(' ', t->lyt.fp); vfprintf(t->lyt.fp, excuse, *ap); }
1397 fputc('\n', t->lyt.fp);
1400 /* --- @tap_egroup@ --- *
1402 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1407 * Use: Report that a test group has finished.
1409 * The TAP driver reports a summary of the group's tests.
1412 static void tap_egroup(struct tvec_output *o)
1414 struct tap_output *t = (struct tap_output *)o;
1415 struct tvec_state *tv = t->tv;
1417 fprintf(t->lyt.fp, " 1..%u\n", t->testix);
1418 fprintf(t->lyt.fp, "%s %u - %s\n",
1419 tv->curr[TVOUT_LOSE] ? "not ok" : "ok",
1420 t->grpix, tv->test->name);
1423 /* --- @tap_btest@ --- *
1425 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1430 * Use: Report that a test is starting.
1432 * The TAP driver advances its test counter. (We could do this
1433 * by adding up up the counters in @tv->curr@, and add on the
1434 * current test, but it's easier this way.)
1437 static void tap_btest(struct tvec_output *o)
1438 { struct tap_output *t = (struct tap_output *)o; t->testix++; }
1440 /* --- @tap_outcome@, @tap_skip@, @tap_fail@ --- *
1442 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1444 * @unsigned attr@ = attribute to apply to the outcome
1445 * @const char *outcome@ = outcome string to report
1446 * @const char *detail@, @va_list *ap@ = a detail message
1447 * @const char *excuse@, @va_list *ap@ = reason for skipping the
1452 * Use: Report that a test has been skipped or failed.
1454 * The TAP driver reports the situation on its output stream.
1455 * TAP only allows us to report a single status for each
1456 * subtest, so we notice when we've already reported a status
1457 * for the current test and convert the second report as a
1458 * comment. This should only happen in the case of multiple
1462 static void tap_outcome(struct tvec_output *o,
1463 const char *head, const char *tail,
1464 const char *detail, va_list *ap)
1466 struct tap_output *t = (struct tap_output *)o;
1467 struct tvec_state *tv = t->tv;
1469 fprintf(t->lyt.fp, " %s %u - %s:%u%s",
1470 t->testix == t->previx ? "##" : head,
1471 t->testix, tv->infile, tv->test_lno, tail);
1473 { fputc(' ', t->lyt.fp); vfprintf(t->lyt.fp, detail, *ap); }
1474 fputc('\n', t->lyt.fp);
1475 t->previx = t->testix;
1478 static void tap_skip(struct tvec_output *o, const char *excuse, va_list *ap)
1479 { tap_outcome(o, "ok", " # SKIP", excuse, ap); }
1480 static void tap_fail(struct tvec_output *o, const char *detail, va_list *ap)
1481 { tap_outcome(o, "not ok", "", detail, ap); }
1483 /* --- @tap_dumpreg@ --- *
1485 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1487 * @unsigned disp@ = register disposition
1488 * @const union tvec_regval *rv@ = register value
1489 * @const struct tvec_regdef *rd@ = register definition
1493 * Use: Dump a register.
1495 * The TAP driver applies highlighting to mismatching output
1496 * registers, but otherwise delegates to the register type
1497 * handler and the layout machinery. The result is that the
1498 * register dump is marked as a comment and indented.
1501 static void tap_dumpreg(struct tvec_output *o,
1502 unsigned disp, const union tvec_regval *rv,
1503 const struct tvec_regdef *rd)
1505 struct tap_output *t = (struct tap_output *)o;
1506 const char *ds = regdisp(disp); int n = strlen(ds) + strlen(rd->name);
1508 set_layout_prefix(&t->lyt, " ## ");
1509 gprintf(&tap_printops, t, "%*s%s %s = ",
1510 10 + t->maxlen - n, "", ds, rd->name);
1511 if (!rv) gprintf(&tap_printops, t, "#<unset>");
1512 else rd->ty->dump(rv, rd, 0, &tap_printops, t);
1513 layout_char(&t->lyt, '\n');
1516 /* --- @tap_etest@ --- *
1518 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1520 * @unsigned outcome@ = the test outcome
1524 * Use: Report that a test has finished.
1526 * The TAP driver reports the outcome of the test, if that's not
1530 static void tap_etest(struct tvec_output *o, unsigned outcome)
1534 tap_outcome(o, "ok", "", 0, 0);
1537 tap_outcome(o, "not ok", " # TODO expected failure", 0, 0);
1542 /* --- @tap_bbench@ --- *
1544 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1546 * @const char *ident@ = identifying register values
1547 * @unsigned unit@ = measurement unit (@TVBU_...@)
1551 * Use: Report that a benchmark has started.
1553 * The TAP driver does nothing here. All of the reporting
1554 * happens in @tap_ebench@.
1557 static void tap_bbench(struct tvec_output *o,
1558 const char *ident, unsigned unit)
1561 /* --- @tap_ebench@ --- *
1563 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1565 * @const char *ident@ = identifying register values
1566 * @unsigned unit@ = measurement unit (@TVBU_...@)
1567 * @const struct bench_timing *tm@ = measurement
1571 * Use: Report a benchmark's results
1573 * The TAP driver just delegates to the default benchmark
1574 * reporting, via the layout machinery so that the result is
1575 * printed as a comment.
1578 static void tap_ebench(struct tvec_output *o,
1579 const char *ident, unsigned unit,
1580 const struct bench_timing *tm)
1582 struct tap_output *t = (struct tap_output *)o;
1583 struct tvec_state *tv = t->tv;
1585 set_layout_prefix(&t->lyt, " ## ");
1586 gprintf(&tap_printops, t, "%s: %s: ", tv->test->name, ident);
1587 tvec_benchreport(&tap_printops, t, unit, tm);
1588 layout_char(&t->lyt, '\n');
1591 /* --- @tap_report@ --- *
1593 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1595 * @unsigned level@ = message level (@TVLEV_...@)
1596 * @const char *msg@, @va_list *ap@ = format string and
1601 * Use: Report a message to the user.
1603 * Messages are reported as comments, so that they can be
1604 * accumulated by the reader. An error will cause a later
1605 * bailout or, if we crash before then, a missing plan line,
1606 * either of which will cause the reader to report a serious
1610 static void tap_report(struct tvec_output *o, unsigned level,
1611 const char *msg, va_list *ap)
1613 struct tap_output *t = (struct tap_output *)o;
1614 struct tvec_state *tv = t->tv;
1616 if (tv->test) set_layout_prefix(&t->lyt, " ## ");
1617 else set_layout_prefix(&t->lyt, "## ");
1619 if (tv->infile) gprintf(&tap_printops, t, "%s:%u: ", tv->infile, tv->lno);
1620 gprintf(&tap_printops, t, "%s: ", tvec_strlevel(level));
1621 vgprintf(&tap_printops, t, msg, ap);
1622 layout_char(&t->lyt, '\n');
1625 /* --- @tap_destroy@ --- *
1627 * Arguments: @struct tvec_output *o@ = output sink, secretly a @struct
1632 * Use: Release the resources held by the output driver.
1635 static void tap_destroy(struct tvec_output *o)
1637 struct tap_output *t = (struct tap_output *)o;
1639 destroy_layout(&t->lyt,
1640 t->lyt.fp == stdout || t->lyt.fp == stderr ? 0 : DLF_CLOSE);
1641 xfree(t->outbuf); xfree(t);
1644 static const struct tvec_outops tap_ops = {
1645 tap_bsession, tap_esession,
1646 tap_bgroup, tap_skipgroup, tap_egroup,
1647 tap_btest, tap_skip, tap_fail, tap_dumpreg, tap_etest,
1648 tap_bbench, tap_ebench,
1653 /* --- @tvec_tapoutput@ --- *
1655 * Arguments: @FILE *fp@ = output file to write on
1657 * Returns: An output formatter.
1659 * Use: Return an output formatter which writes on @fp@ in `TAP'
1660 * (`Test Anything Protocol') format.
1662 * TAP comes from the Perl community, but has spread rather
1663 * further. This driver produces TAP version 14, but pretends
1664 * to be version 13. The driver produces a TAP `test point' --
1665 * i.e., a result reported as `ok' or `not ok' -- for each input
1666 * test group. Failure reports and register dumps are produced
1667 * as diagnostic messages before the final group result. (TAP
1668 * permits structuerd YAML data after the test-point result,
1669 * which could be used to report details, but (a) postponing the
1670 * details until after the report is inconvenient, and (b) there
1671 * is no standardization for the YAML anyway, so in practice
1672 * it's no more useful than the unstructured diagnostics.
1675 struct tvec_output *tvec_tapoutput(FILE *fp)
1677 struct tap_output *t;
1679 t = xmalloc(sizeof(*t)); t->_o.ops = &tap_ops;
1680 init_layout(&t->lyt, fp, 0);
1681 t->outbuf = 0; t->outsz = 0;
1685 /*----- Default output ----------------------------------------------------*/
1687 /* --- @tvec_dfltoutput@ --- *
1689 * Arguments: @FILE *fp@ = output file to write on
1691 * Returns: An output formatter.
1693 * Use: Selects and instantiates an output formatter suitable for
1694 * writing on @fp@. The policy is subject to change, but
1695 * currently the `human' output format is selected if @fp@ is
1696 * interactive (i.e., if @isatty(fileno(fp))@ is true), and
1697 * otherwise the `tap' format is used.
1700 struct tvec_output *tvec_dfltout(FILE *fp)
1702 int ttyp = getenv_boolean("TVEC_TTY", -1);
1704 if (ttyp == -1) ttyp = isatty(fileno(fp));
1705 if (ttyp) return (tvec_humanoutput(fp));
1706 else return (tvec_tapoutput(fp));
1709 /*----- That's all, folks -------------------------------------------------*/