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#include <criterion/criterion.h>
#include <criterion/assert.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "vector.h"
#include "slice.h"
DEFINE_VECTOR(Vec_char, char);
struct line {
Vec_char *vec; /* could be NULL */
const char *origin; /* original line pointer from eb_load_file */
size_t origin_len;
unsigned is_lazy : 1;
};
#include "line.h"
void my_assert_li_eq(const struct line *li, const char *s) {
struct slice sl;
line_get_slice(li, &sl);
cr_assert_arr_eq(sl.ptr, s, sl.len);
}
/*----------------------------------------------------------------------
2) Append characters and check null-termination & last index
--------------------------------------------------------------------*/
Test(line_suite, append) {
struct line *li;
line_init(&li);
const char *text = "abc";
for (const char *p = text; *p; ++p)
line_append(li, *p);
cr_assert_eq(line_get_last(li), 3);
my_assert_li_eq(li, "abc");
line_free(li);
}
/*----------------------------------------------------------------------
3) Insert a character in the middle
--------------------------------------------------------------------*/
Test(line_suite, insert_middle) {
struct line *li;
line_init(&li);
line_append(li, 'a');
line_append(li, 'c'); /* string now "ac" */
line_insert(li, 1, 'b'); /* "abc" */
cr_assert_eq(line_get_last(li), 3);
my_assert_li_eq(li, "abc");
line_free(li);
}
/*----------------------------------------------------------------------
4) Delete a character at given position
--------------------------------------------------------------------*/
Test(line_suite, delete_at_pos) {
struct line *li;
line_init(&li);
for (char ch = 'a'; ch <= 'e'; ++ch) line_append(li, ch); /* abcde */
line_delete(li, 2); /* remove 'c' → "abde" */
cr_assert_eq(line_get_last(li), 4);
my_assert_li_eq(li, "abde");
line_free(li);
}
/*----------------------------------------------------------------------
6) Clear line contents
--------------------------------------------------------------------*/
Test(line_suite, clear) {
struct line *li;
line_init(&li);
line_append(li, 'Z');
line_clear(li);
cr_assert_eq(line_get_last(li), 0);
my_assert_li_eq(li, "");
line_free(li);
}
/*----------------------------------------------------------------------
7) Split a line into two at a given index
--------------------------------------------------------------------*/
Test(line_suite, split) {
struct line *li, *tail;
line_init(&li);
const char *w = "hello";
for (const char *p = w; *p; ++p)
line_append(li, *p); /* "hello" */
line_split(li, 2, &tail); /* "he" + "llo" */
cr_assert_eq(line_get_last(li), 2);
my_assert_li_eq(li, "he");
cr_assert_eq(line_get_last(tail), 3);
my_assert_li_eq(tail, "llo");
line_free(tail);
line_free(li);
}
/*----------------------------------------------------------------------
8) Concatenate two lines
--------------------------------------------------------------------*/
Test(line_suite, cat) {
struct line *a, *b;
line_init(&a);
line_init(&b);
for (const char *p = "abc"; *p; ++p)
line_append(a, *p);
for (const char *p = "def"; *p; ++p)
line_append(b, *p);
line_cat(a, b); /* "abcdef" */
cr_assert_eq(line_get_last(a), 6);
my_assert_li_eq(a, "abcdef");
/* `b` should remain unchanged */
cr_assert_eq(line_get_last(b), 3);
my_assert_li_eq(b, "def");
line_free(b);
line_free(a);
}
/*─────────────────────────────────────────────────────────────
Lazy-loading specific tests
────────────────────────────────────────────────────────────*/
/*----------------------------------------------------------------------
10) Any edit must materialise the line (append path)
--------------------------------------------------------------------*/
Test(line_suite_lazy, lazy_append) {
struct line *li;
line_lazy_init(&li, "hi", 2); /* lazy “hi” */
line_append(li, '!'); /* triggers materialise*/
cr_assert_not(li->is_lazy);
my_assert_li_eq(li, "hi!");
cr_assert_eq(line_get_last(li), 3);
line_free(li);
}
/*----------------------------------------------------------------------
11) line_cat with lazy source
--------------------------------------------------------------------*/
Test(line_suite_lazy, cat_from_lazy_src) {
struct line *dest, *src;
line_init(&dest);
line_lazy_init(&src, "ABC", 3); /* src still lazy */
for (const char *p = "123"; *p; ++p)
line_append(dest, *p); /* dest = “123” */
line_cat(dest, src); /* → “123ABC” */
my_assert_li_eq(dest, "123ABC");
cr_assert(src->is_lazy, "cat should *not* materialise src");
cr_assert(src->vec == NULL, "lazy src remains unmaterialised");
line_free(src);
line_free(dest);
}
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