/*
 * Copyright 2014 (c) Anna Schumaker.
 */
#include <core/file.h>
#include "test.h"


static void test_verify_constructor(struct file *file, const std::string &fpath)
{
	test_equal(file_version(file), 0);
	test_equal(file->f_mode, NOT_OPEN);
	test_equal(file_path(file), fpath);
}

static void test_empty()
{
	struct file fempty;

	file_init(&fempty, "", 0);
	test_verify_constructor(&fempty, "");

	test_equal(file_open(&fempty, NOT_OPEN), (bool)false);
	test_equal(file_open(&fempty, OPEN_READ), (bool)false);
	test_equal(fempty.f_mode, NOT_OPEN);
	test_equal(file_open(&fempty, OPEN_WRITE), (bool)false);
	test_equal(fempty.f_mode, NOT_OPEN);

	test_equal(file_exists(&fempty), (bool)false);
	test_equal(test_data_file_exists(NULL), (bool)false);
}

static void test_file()
{
	struct file file;
	gchar *filepath = test_data_file("file.txt");

	file_init(&file, "file.txt", 0);
	test_verify_constructor(&file, filepath);
	test_equal(file_exists(&file), (bool)false);
	test_equal(test_data_file_exists(NULL), (bool)false);

	test_equal(file_open(&file, NOT_OPEN), (bool)false);
	test_equal(file_open(&file, OPEN_READ), (bool)false);
	test_equal(file_open(&file, OPEN_WRITE), (bool)true);
	test_equal(file.f_mode, OPEN_WRITE);
	test_equal(file_open(&file, OPEN_WRITE), (bool)false);

	file_close(&file);
	test_equal(file.f_mode, NOT_OPEN);

	test_equal(file_exists(&file), (bool)true);
	test_equal(test_data_file_exists("file.txt"), (bool)true);

	g_chmod(file_path(&file).c_str(), 0444);
	test_equal(file_open(&file, OPEN_WRITE), (bool)false);
	g_chmod(file_path(&file).c_str(), 0200);
	test_equal(file_open(&file, OPEN_READ), (bool)false);
	g_chmod(file_path(&file).c_str(), 0644);

	test_equal(file_open(&file, OPEN_READ), (bool)true);
	test_equal(file.f_mode, OPEN_READ);
	test_equal(file_open(&file, OPEN_READ), (bool)false);
	file_close(&file);

	g_free(filepath);
}

static void test_io()
{
	struct file a, b;
	std::string res;

	file_init(&a, "file.txt", 1);
	test_equal(file_open(&a, OPEN_WRITE), true);
	a << "ABCDE FGHIJ   KLMNO PQRST UVWXYZ" << std::endl;
	file_close(&a);
	test_equal(file_exists(&a), true);


	file_init(&b, "file.txt", 0);
	test_equal(file_open(&b, OPEN_READ), true);
	test_equal(file_version(&b), (unsigned)1);
	b >> res;
	test_equal(res, (std::string)"ABCDE");
	b >> res;
	test_equal(res, (std::string)"FGHIJ");
	res = file_readl(&b);
	test_equal(res, (std::string)"KLMNO PQRST UVWXYZ");
	file_close(&b);
}

DECLARE_UNIT_TESTS(
	UNIT_TEST("File (Path = \"\")", test_empty),
	UNIT_TEST("File (Path = \"file.txt\")", test_file),
	UNIT_TEST("File I/O", test_io),
);