#include "unity/unity.h"
#define PCRE2_CODE_UNIT_WIDTH 8
#include "pcre2.h"

void setUp(void) {
    /* Called before each test */
}

void tearDown(void) {
    /* Called after each test */
}

void test_simple_pattern_compiles(void) {
    pcre2_code *re;
    int errornumber;
    PCRE2_SIZE erroroffset;
    PCRE2_SPTR pattern = (PCRE2_SPTR)"\\d+";
    
    re = pcre2_compile(pattern, PCRE2_ZERO_TERMINATED, 0,
                       &errornumber, &erroroffset, NULL);
    
    TEST_ASSERT_NOT_NULL_MESSAGE(re, "Pattern should compile");
    pcre2_code_free(re);
}

void test_invalid_pattern_fails(void) {
    pcre2_code *re;
    int errornumber;
    PCRE2_SIZE erroroffset;
    PCRE2_SPTR pattern = (PCRE2_SPTR)"[invalid";
    
    re = pcre2_compile(pattern, PCRE2_ZERO_TERMINATED, 0,
                       &errornumber, &erroroffset, NULL);
    
    TEST_ASSERT_NULL_MESSAGE(re, "Invalid pattern should fail");
}

void test_utf8_pattern(void) {
    pcre2_code *re;
    int errornumber;
    PCRE2_SIZE erroroffset;
    PCRE2_SPTR pattern = (PCRE2_SPTR)"café";
    
    re = pcre2_compile(pattern, PCRE2_ZERO_TERMINATED, PCRE2_UTF,
                       &errornumber, &erroroffset, NULL);
    
    TEST_ASSERT_NOT_NULL_MESSAGE(re, "UTF-8 pattern should compile");
    pcre2_code_free(re);
}

int main(void) {
    UNITY_BEGIN();
    RUN_TEST(test_simple_pattern_compiles);
    RUN_TEST(test_invalid_pattern_fails);
    RUN_TEST(test_utf8_pattern);
    return UNITY_END();
}