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#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <fold/fold.h>
#include <list/list.h>
#include <talloc/talloc.h>
struct line {
const char *buf;
unsigned int len;
struct list_item list;
};
struct ctx {
struct list lines;
};
struct test {
const char *in;
unsigned int linelen;
const char *out[];
};
/* split on newline boundaries, no actual folding */
struct test test_split = {
.in = "Lorem ipsum dolor\nsit amet,\nconsectetuer\n",
.linelen = 20,
.out = {
"Lorem ipsum dolor",
"sit amet,",
"consectetuer",
"",
NULL,
},
};
/* fold a long line */
struct test test_fold_line = {
.in = "Lorem ipsum dolor sit amet, consectetuer adipiscing "
"elit, sed diam nonummy nibh euismod tincidunt ut "
"laoreet dolore magna aliquam erat volutpat.",
.linelen = 20,
.out = {
"Lorem ipsum dolor",
"sit amet,",
"consectetuer",
"adipiscing elit,",
"sed diam nonummy",
"nibh euismod",
"tincidunt ut",
"laoreet dolore",
"magna aliquam erat",
"volutpat.",
NULL
},
};
/* break a word */
struct test test_break = {
.in = "Lorem ipsum dolor sit amet, consectetuer",
.linelen = 10,
.out = {
"Lorem",
"ipsum",
"dolor sit",
"amet,",
"consectetu",
"er",
NULL
},
};
static struct test *tests[] = {
&test_split, &test_fold_line, &test_break,
};
static void __attribute__((noreturn)) fail(struct ctx *ctx,
struct test *test, const char *msg)
{
struct line *line;
int i;
fprintf(stderr, "%s\n", msg);
fprintf(stderr, "input:\n%s\n", test->in);
fprintf(stderr, "expected:\n");
for (i = 0; test->out[i]; i++)
fprintf(stderr, " '%s'\n", test->out[i]);
fprintf(stderr, "actual:\n");
list_for_each_entry(&ctx->lines, line, list) {
char *buf = talloc_strndup(ctx, line->buf, line->len);
fprintf(stderr, " '%s'\n", buf);
talloc_free(buf);
}
exit(EXIT_FAILURE);
}
static int fold_line_cb(void *arg, const char *start, int len)
{
struct ctx *ctx = arg;
struct line *line;
line = talloc(ctx, struct line);
line->buf = start;
line->len = len;
list_add_tail(&ctx->lines, &line->list);
return 0;
}
static void run_test(struct test *test)
{
struct line *line;
struct ctx *ctx;
int i;
ctx = talloc(NULL, struct ctx);
list_init(&ctx->lines);
fold_text(test->in, test->linelen, fold_line_cb, ctx);
i = 0;
list_for_each_entry(&ctx->lines, line, list) {
if (!test->out[i])
fail(ctx, test,
"fold_text returned more lines than expected");
if (line->len > test->linelen)
fail(ctx, test, "line too long");
if (line->len != strlen(test->out[i]))
fail(ctx, test, "line lengths differ");
if (strncmp(line->buf, test->out[i], line->len))
fail(ctx, test, "line data differs");
i++;
}
if (test->out[i])
fail(ctx, test, "fold_text returned fewer lines than expected");
talloc_free(ctx);
}
int main(void)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(tests); i++)
run_test(tests[i]);
return EXIT_SUCCESS;
}
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