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Refactored string_set_at and added documentation

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Marco Cetica
2026-01-12 11:58:32 +01:00
parent 0f8378bf75
commit b1cca113ce
11 changed files with 221 additions and 55 deletions
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36
tests/test_string.c
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@@ -22,7 +22,7 @@ void test_string_new(void) {
assert(res.status == STRING_OK);
assert(res.value.string != NULL);
assert(strcmp(res.value.string->data, "hello") == 0);
assert(string_len(res.value.string) == 5);
assert(string_size(res.value.string) == 5);
assert(res.value.string->byte_size == 5);
string_destroy(res.value.string);
@@ -33,7 +33,7 @@ void test_string_new_empty(void) {
string_result_t res = string_new("");
assert(res.status == STRING_OK);
assert(string_len(res.value.string) == 0);
assert(string_size(res.value.string) == 0);
assert(res.value.string->byte_size == 0);
assert(res.value.string->data[0] == '\0');
@@ -62,7 +62,7 @@ void test_string_concat(void) {
string_result_t res = string_concat(str1, str2);
assert(res.status == STRING_OK);
assert(strcmp(res.value.string->data, "Foo Bar") == 0);
assert(string_len(res.value.string) == 7);
assert(string_size(res.value.string) == 7);
string_destroy(str1);
string_destroy(str2);
@@ -155,9 +155,9 @@ void test_string_reverse_utf8(void) {
string_result_t res = string_reverse(str);
assert(res.status == STRING_OK);
assert(string_len(res.value.string) == 3);
assert(string_size(res.value.string) == 3);
assert(strcmp(res.value.string->data, "Z🌍A") == 0);
assert(string_len(res.value.string) == 3);
assert(string_size(res.value.string) == 3);
string_destroy(str);
string_destroy(res.value.string);
@@ -198,10 +198,29 @@ void test_string_set_at(void) {
// Replace 'B' with emoji
string_result_t res = string_set_at(str, 1, "😆");
string_t *altered = res.value.string;
assert(res.status == STRING_OK);
assert(strcmp(str->data, "A😆C") == 0);
assert(string_len(str) == 3);
assert(str->byte_size == 6); // that is: A (1B) + emoji (4B) + C (1B)
assert(strcmp(altered->data, "A😆C") == 0);
assert(string_size(altered) == 3);
assert(altered->byte_size == 6); // that is: A (1B) + emoji (4B) + C (1B)
string_destroy(str);
string_destroy(altered);
}
// Test mutation of invalid UTF-8 symbol
void test_string_set_at_invalid_utf8(void) {
string_t *str = string_new("ABC").value.string;
const char * const invalid_sym1 = "\xFF";
const char * const invalid_sym2 = "\x80";
string_result_t res1 = string_set_at(str, 1, invalid_sym1);
assert(res1.status == STRING_ERR_INVALID_UTF8);
string_result_t res2 = string_set_at(str, 1, invalid_sym2);
assert(res2.status == STRING_ERR_INVALID_UTF8);
string_destroy(str);
}
@@ -298,6 +317,7 @@ int main(void) {
TEST(string_get_at_overflow);
TEST(string_set_at);
TEST(string_set_at_overflow);
TEST(string_set_at_invalid_utf8);
TEST(string_to_lower);
TEST(string_to_upper);
TEST(string_trim);