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#include "test.h"

#include <dirent.h>
#include <stdlib.h>
#include <string.h>

void test_parsing(const char *test_dir) {
	char *parsing_dir = malloc(strlen(test_dir) + 30);
	sprintf(parsing_dir, "%s/parsing", test_dir);
	DIR *dir = opendir(parsing_dir);
	if (!dir) {
		test_fail("Couldn't open test directory %s", parsing_dir);
		return;
	}
	struct dirent *ent;
	while ((ent = readdir(dir))) {
		const char *name = ent->d_name;
		if (strlen(name) >= strlen("x.flat.pom") &&
			strcmp(name + strlen(name) - strlen(".flat.pom"), ".flat.pom") == 0) {
			printf("Testing %s...\n",name);
			char *conf_path = malloc(strlen(parsing_dir) + strlen(name) + 30);
			char *flat_path = malloc(strlen(parsing_dir) + strlen(name) + 30);
			sprintf(conf_path, "%s/parsing/%.*s.pom", test_dir,
				(int)(strlen(name) - strlen(".flat.pom")), name);
			sprintf(flat_path, "%s/parsing/%s", test_dir, name);
			pom_error *error;
			pom_conf *conf = pom_load_path(conf_path, &error);
			if (error) {
				test_fail("Failed to parse %s\n%s", conf_path,
					pom_error_to_string(error));
				continue;
			}
			pom_conf *flat = pom_load_path(flat_path, &error);
			if (error) {
				test_fail("Failed to parse %s\n%s", flat_path,
					pom_error_to_string(error));
				continue;
			}
			const pom_item *item;
			pom_item_iter *iter = NULL;
			while ((item = pom_conf_next_item(conf, &iter))) {
				if (!pom_conf_has(flat, item->key)) {
					test_fail("%s has key '%s' but %s doesn't",
						conf_path, item->key, flat_path);
				}
			}
			while ((item = pom_conf_next_item(flat, &iter))) {
				const char *conf_value = pom_conf_get(conf, item->key);
				if (!conf_value) {
					test_fail("%s has key '%s' but %s doesn't",
						flat_path, item->key, conf_path);
				}
				if (strcmp(conf_value, item->value) != 0) {
					test_fail("Mismatch between %s and %s at key '%s'\n"
						"expected: %s\n"
						"     got: %s\n",
						flat_path, conf_path, item->key, item->value, conf_value);
				}
			}
			pom_conf_free(conf);
			pom_conf_free(flat);
			free(conf_path);
			free(flat_path);
		}
	}
	free(parsing_dir);
}