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	sl_test.c - lchat - A line oriented chat front end for ii.
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	---
	sl_test.c (2244B)
	---
	1 #include <assert.h>
	2 #include <stdio.h>
	3 #include <stdlib.h>
	4 #include <string.h>
	5
	6 #include "slackline.h"
	7
	8 static void
	9 strokes(struct slackline sl, const char str)
	10 {
	11 for (const char c = str; c != '\0'; c++)
	12 sl_keystroke(sl, *c);
	13 }
	14
	15 static void
	16 check_init(struct slackline *sl)
	17 {
	18 assert(sl != NULL);
	19 assert(sl->buf != NULL);
	20 assert(sl->ptr == sl->buf);
	21 assert(sl->rlen == 0);
	22 assert(sl->blen == 0);
	23 assert(sl->rcur == 0);
	24 assert(sl->bcur == 0);
	25 assert(sl->last == sl->buf);
	26 }
	27
	28 static void
	29 check_ascii(struct slackline *sl)
	30 {
	31 strokes(sl, "abc");
	32 assert(sl->blen == 3);
	33 assert(sl->rlen == 3);
	34 assert(sl->bcur == 3);
	35 assert(sl->rcur == 3);
	36 assert(sl->last - sl->buf == sl->blen);
	37
	38 strokes(sl, "\x08"); /* backspace */
	39 assert(sl->blen == 2);
	40 assert(sl->rlen == 2);
	41 assert(sl->bcur == 2);
	42 assert(sl->rcur == 2);
	43 assert(sl->last - sl->buf == sl->blen);
	44
	45 strokes(sl, "\x1b[D"); /* left arrow key */
	46 assert(sl->blen == 2);
	47 assert(sl->rlen == 2);
	48 assert(sl->bcur == 1);
	49 assert(sl->rcur == 1);
	50 assert(sl->last - sl->buf == sl->blen);
	51 }
	52
	53 static void
	54 check_utf8(struct slackline *sl)
	55 {
	56 /* ae \| oe \| ue \| ss */
	57 strokes(sl, "\xC3\xA4\xC3\xBC\xC3\xB6\xC3\x9F");
	58 assert(sl->blen == 8);
	59 assert(sl->rlen == 4);
	60 assert(sl->bcur == 8);
	61 assert(sl->rcur == 4);
	62 assert(sl->last - sl->buf == sl->blen);
	63
	64 strokes(sl, "\x08"); /* backspace */
	65 assert(sl->blen == 6);
	66 assert(sl->rlen == 3);
	67 assert(sl->bcur == 6);
	68 assert(sl->rcur == 3);
	69 assert(sl->last - sl->buf == sl->blen);
	70
	71 strokes(sl, "\x1b[D"); /* left arrow key */
	72 assert(sl->blen == 6);
	73 assert(sl->rlen == 3);
	74 assert(sl->bcur == 4);
	75 assert(sl->rcur == 2);
	76 assert(sl->last - sl->buf == sl->blen);
	77
	78 strokes(sl, "\x08"); /* backspace */
	79 assert(sl->blen == 4);
	80 assert(sl->rlen == 2);
	81 assert(sl->bcur == 2);
	82 assert(sl->rcur == 1);
	83 assert(sl->last - sl->buf == sl->blen);
	84
	85 strokes(sl, "\x1b[C"); /* right arrow key */
	86 assert(sl->blen == 4);
	87 assert(sl->rlen == 2);
	88 assert(sl->bcur == 4);
	89 assert(sl->rcur == 2);
	90 assert(sl->last - sl->buf == sl->blen);
	91 }
	92
	93 int
	94 main(void)
	95 {
	96 struct slackline *sl;
	97
	98 sl = sl_init();
	99 check_init(sl);
	100 check_ascii(sl);
	101
	102 sl_reset(sl);
	103 check_init(sl);
	104 check_utf8(sl);
	105
	106 sl_free(sl);
	107
	108 return EXIT_SUCCESS;
	109 }