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/* test_frontmatter.c — standalone test suite for frontmatter.h.
* Zero dependencies: compiles to a single TU with no linked libraries. */
#include "frontmatter.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static int failures = 0;
static int checks = 0;
#define CHECK(cond, msg) \
do { \
checks++; \
if (!(cond)) { \
failures++; \
fprintf(stderr, "FAIL %s:%d: %s\n", __FILE__, __LINE__, (msg)); \
} \
} while (0)
/* ------------------------------------------------------------------ */
/* Frontmatter */
/* ------------------------------------------------------------------ */
static void test_frontmatter_scalars_lists_quotes(void) {
doc d;
parse_frontmatter(
"---\nid: a-1\nname: \"A: One\"\nenabled: true\nn: 42\ntags: db, "
"arch\ntags2: [\"x\", \"y\"]\n---\nbody line",
&d);
CHECK(strcmp(d.body, "body line") == 0, "body");
const fm_value *v = doc_get(&d, "id");
CHECK(v && v->kind == FM_STR && strcmp(v->s, "a-1") == 0, "id");
v = doc_get(&d, "name");
CHECK(v && v->kind == FM_STR && strcmp(v->s, "A: One") == 0, "name");
v = doc_get(&d, "enabled");
CHECK(v && v->kind == FM_BOOL && v->b, "enabled");
v = doc_get(&d, "n");
CHECK(v && v->kind == FM_INT && v->i == 42, "n");
v = doc_get(&d, "tags");
CHECK(v, "tags present");
fm_strlist items;
fm_list_items(v, &items);
CHECK(items.len == 2 && strcmp(items.items[0], "db") == 0 &&
strcmp(items.items[1], "arch") == 0,
"tags csv");
fm_sl_free(&items);
v = doc_get(&d, "tags2");
CHECK(v && v->kind == FM_LIST && v->item_count == 2 &&
strcmp(v->items[0], "x") == 0 && strcmp(v->items[1], "y") == 0,
"tags2 array");
doc_free(&d);
}
static void test_frontmatter_missing_or_unterminated(void) {
doc d;
parse_frontmatter("just a body\n", &d);
CHECK(d.count == 0, "no meta");
CHECK(strcmp(d.body, "just a body") == 0, "body trimmed");
doc_free(&d);
parse_frontmatter("---\nid: x\nno closing fence\n", &d);
CHECK(d.count == 0, "unterminated: no meta");
CHECK(strcmp(d.body, "---\nid: x\nno closing fence") == 0,
"unterminated: whole text is body");
doc_free(&d);
}
static void test_frontmatter_ignores_blank_comment_colonless(void) {
doc d;
parse_frontmatter("---\n# comment\n\nnotakey\nk: v\n---\n", &d);
CHECK(d.count == 1, "one meta entry");
const fm_value *v = doc_get(&d, "k");
CHECK(v && v->kind == FM_STR && strcmp(v->s, "v") == 0, "k=v");
doc_free(&d);
}
static void test_fm_list_items_variants(void) {
doc d;
parse_frontmatter(
"---\ncsv: a, b, c\njson: [\"x\", \"y\"]\nsingle: only\nempty:\n"
"nums: [1, 2]\n---\nbody",
&d);
fm_strlist out;
fm_list_items(doc_get(&d, "csv"), &out);
CHECK(out.len == 3 && strcmp(out.items[0], "a") == 0 &&
strcmp(out.items[2], "c") == 0,
"csv");
fm_sl_free(&out);
fm_list_items(doc_get(&d, "json"), &out);
CHECK(out.len == 2 && strcmp(out.items[0], "x") == 0, "json");
fm_sl_free(&out);
fm_list_items(doc_get(&d, "single"), &out);
CHECK(out.len == 1 && strcmp(out.items[0], "only") == 0, "single");
fm_sl_free(&out);
fm_list_items(doc_get(&d, "empty"), &out);
CHECK(out.len == 0, "empty list");
fm_sl_free(&out);
fm_list_items(doc_get(&d, "nums"), &out);
CHECK(out.len == 2 && strcmp(out.items[0], "1") == 0, "non-string items");
fm_sl_free(&out);
fm_list_items(NULL, &out);
CHECK(out.len == 0, "null value");
fm_sl_free(&out);
doc_free(&d);
}
/* ------------------------------------------------------------------ */
/* Embedded JSON */
/* ------------------------------------------------------------------ */
static void test_json_roundtrip(void) {
const char *src =
"{\"a\":1,\"b\":\"x\",\"c\":[true,null,1.5],\"d\":{\"e\":[1,2,"
"\"z\"]}}";
fm_json *v = fm_json_parse(src);
CHECK(v != NULL, "parse");
CHECK(v && v->type == FMJ_OBJECT, "object");
CHECK(v && v->count == 4, "4 keys");
const fm_json *a = fm_json_get(v, "a");
CHECK(a && a->type == FMJ_NUMBER && a->is_int && a->i == 1, "a=1");
const fm_json *b = fm_json_get(v, "b");
CHECK(b && b->type == FMJ_STRING && strcmp(b->str, "x") == 0, "b=x");
const fm_json *c = fm_json_get(v, "c");
CHECK(c && c->type == FMJ_ARRAY && c->count == 3, "c array");
CHECK(c && c->items[0]->type == FMJ_BOOL && c->items[0]->b, "c[0]=true");
CHECK(c && c->items[1]->type == FMJ_NULL, "c[1]=null");
CHECK(c && c->items[2]->type == FMJ_NUMBER && c->items[2]->num == 1.5,
"c[2]=1.5");
const fm_json *d = fm_json_get(v, "d");
CHECK(d && d->type == FMJ_OBJECT, "d object");
const fm_json *e = d ? fm_json_get(d, "e") : NULL;
CHECK(e && e->type == FMJ_ARRAY && e->count == 3, "d.e array");
CHECK(e && e->items[1]->is_int && e->items[1]->i == 2, "d.e[1]=2");
char *out = fm_json_serialize(v);
CHECK(out && strcmp(out, src) == 0, "roundtrip");
free(out);
fm_json_free(v);
}
static void test_json_escapes(void) {
fm_json *v = fm_json_parse("\"a\\\"b\\\\c\\nd\\u0041\"");
CHECK(v && v->type == FMJ_STRING, "parse");
CHECK(v && strcmp(v->str, "a\"b\\c\ndA") == 0, "unescaped value");
char *s = fm_json_serialize(v);
CHECK(s && strcmp(s, "\"a\\\"b\\\\c\\ndA\"") == 0, "escaped output");
free(s);
fm_json_free(v);
fm_json *u = fm_json_parse("\"\\u4e2d\"");
CHECK(u && u->type == FMJ_STRING, "unicode parse");
CHECK(u && strcmp(u->str, "\xE4\xB8\xAD") == 0, "utf-8 out");
fm_json_free(u);
}
static void test_json_invalid(void) {
CHECK(fm_json_parse("{") == NULL, "open brace");
CHECK(fm_json_parse("[1,") == NULL, "dangling comma");
CHECK(fm_json_parse("{bad:1}") == NULL, "bare key");
CHECK(fm_json_parse("{\"a\":1\"b\":2}") == NULL, "missing comma");
CHECK(fm_json_parse("{}x") == NULL, "trailing garbage");
CHECK(fm_json_parse("") == NULL, "empty");
CHECK(fm_json_parse("01") == NULL, "leading zero");
CHECK(fm_json_parse("1.") == NULL, "dangling dot");
CHECK(fm_json_parse("-") == NULL, "bare minus");
CHECK(fm_json_parse("tru") == NULL, "bare tru");
CHECK(fm_json_parse("\"unterminated") == NULL, "unterminated string");
CHECK(fm_json_parse("[1 2]") == NULL, "missing separator");
fm_json *f1 = fm_json_parse("1.5");
CHECK(f1 != NULL, "float ok");
fm_json_free(f1);
fm_json *f2 = fm_json_parse("1e3");
CHECK(f2 != NULL, "exponent ok");
fm_json_free(f2);
fm_json *f3 = fm_json_parse("null");
CHECK(f3 != NULL, "null ok");
fm_json_free(f3);
fm_json *f4 = fm_json_parse("[]");
CHECK(f4 != NULL, "empty array ok");
fm_json_free(f4);
fm_json *f5 = fm_json_parse("{}");
CHECK(f5 != NULL, "empty object ok");
fm_json_free(f5);
}
static void test_json_merge(void) {
fm_json *base = fm_json_parse("{\"a\":1,\"b\":{\"x\":1}}");
fm_json *over = fm_json_parse("{\"b\":{\"y\":2},\"c\":3}");
fm_json *m = fm_json_merge_owned(base, over);
char *s = fm_json_serialize(m);
CHECK(s && strcmp(s, "{\"b\":{\"y\":2},\"c\":3,\"a\":1}") == 0,
"merged content");
free(s);
fm_json_free(m);
fm_json *o2 = fm_json_parse("{\"z\":9}");
fm_json *m2 = fm_json_merge_owned(NULL, o2);
char *s2 = fm_json_serialize(m2);
CHECK(s2 && strcmp(s2, "{\"z\":9}") == 0, "over only");
free(s2);
fm_json_free(m2);
fm_json *b2 = fm_json_parse("{\"q\":1}");
fm_json *m3 = fm_json_merge_owned(b2, NULL);
char *s3 = fm_json_serialize(m3);
CHECK(s3 && strcmp(s3, "{\"q\":1}") == 0, "base only");
free(s3);
fm_json_free(m3);
fm_json *n1 = fm_json_parse("[1]");
fm_json *n2 = fm_json_parse("\"x\"");
fm_json *m4 = fm_json_merge_owned(n1, n2);
char *s4 = fm_json_serialize(m4);
CHECK(s4 && strcmp(s4, "{}") == 0, "non-object inputs dropped");
free(s4);
fm_json_free(m4);
fm_json *m5 = fm_json_merge_owned(NULL, NULL);
char *s5 = fm_json_serialize(m5);
CHECK(s5 && strcmp(s5, "{}") == 0, "both null");
free(s5);
fm_json_free(m5);
}
int main(void) {
test_frontmatter_scalars_lists_quotes();
test_frontmatter_missing_or_unterminated();
test_frontmatter_ignores_blank_comment_colonless();
test_fm_list_items_variants();
test_json_roundtrip();
test_json_escapes();
test_json_invalid();
test_json_merge();
printf("%d checks, %d failures\n", checks, failures);
return failures ? 1 : 0;
}
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