#include "parse-file.h"

static int test_parse_file(const char* testname, const char* input, const char* output) {
    FILE* instream = tmpfile();
    FILE* outstream = tmpfile();

    /* for some reason, input isn't properly written to instream */
    fprintf(instream, "%s\n", input);

    const int length = strlen(output) + 1;
    char buffer[length];

    /* TODO: use instream instead of stdin */
    _parse_file(stdin, outstream);
    const int tmp_length = ftell(outstream) + 1;
    rewind(outstream);

    fgets(buffer, length, outstream);
    fclose(instream);
    fclose(outstream);

    if (strcmp(buffer, output) == 0 && tmp_length == length) {
        printf("%s test succeeded\n", testname);
        return 0;
    } else {
        printf("%s test failed\n", testname);
        printf("%s !=\n%s\n", buffer, output);
        return 1;
    }
}

int main(void) {
    printf("=============\nRunning Tests\n=============\n");

    int errors = 0;
    errors += test_parse_file("1. Header", "# header", "<h1 id=\"header\">header</h1>\n");
    //errors += test_parse_file("2. Bold", "*bold*", "<strong>bold</strong>\n");

    printf("\n============\nTest Summary\n============\n");
    
    switch (errors) {
        case 0:
            printf("All tests succeeded\n");
            break;
        case 1:
            printf("One test failed\n");
            break;
        default:
            printf("%i tests failed\n", errors);
    }
}