/*
 * libdpkg - Debian packaging suite library routines
 * t-verbuf.c - test varbuf implementation
 *
 * Copyright © 2009 Guillem Jover <guillem@debian.org>
 *
 * This is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2,
 * or (at your option) any later version.
 *
 * This is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with dpkg; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <dpkg-test.h>
#include <dpkg-db.h>

static void
test_varbuf_init(void)
{
	struct varbuf vb;

	varbufinit(&vb, 0);
	test_pass(vb.used == 0);
	test_pass(vb.size == 0);
	test_pass(vb.buf == NULL);

	varbuffree(&vb);
	test_pass(vb.used == 0);
	test_pass(vb.size == 0);
	test_pass(vb.buf == NULL);
}

static void
test_varbuf_prealloc(void)
{
	struct varbuf vb;

	varbufinit(&vb, 10);
	test_pass(vb.used == 0);
	test_pass(vb.size >= 10);
	test_pass(vb.buf != NULL);

	varbuffree(&vb);
	test_pass(vb.used == 0);
	test_pass(vb.size == 0);
	test_pass(vb.buf == NULL);
}

static void
test_varbuf_addbuf(void)
{
	struct varbuf vb;

	varbufinit(&vb, 5);

	varbufaddbuf(&vb, "1234567890", 10);
	test_pass(vb.used == 10);
	test_pass(vb.size >= vb.used);
	test_mem(vb.buf, ==, "1234567890", 10);

	varbufaddbuf(&vb, "abcde", 5);
	test_pass(vb.used == 15);
	test_pass(vb.size >= vb.used);
	test_mem(vb.buf, ==, "1234567890abcde", 15);

	varbuffree(&vb);
}

static void
test_varbuf_addc(void)
{
	struct varbuf vb;

	varbufinit(&vb, 1);

	varbufaddc(&vb, 'a');
	test_pass(vb.used == 1);
	test_pass(vb.size >= vb.used);
	test_pass(vb.buf[0] == 'a');

	varbufaddc(&vb, 'b');
	test_pass(vb.used == 2);
	test_pass(vb.size >= vb.used);
	test_mem(vb.buf, ==, "ab", 2);

	varbufaddc(&vb, 'c');
	test_pass(vb.used == 3);
	test_pass(vb.size >= vb.used);
	test_mem(vb.buf, ==, "abc", 3);

	varbufaddc(&vb, 'd');
	test_pass(vb.used == 4);
	test_pass(vb.size >= vb.used);
	test_mem(vb.buf, ==, "abcd", 4);

	varbuffree(&vb);
}

static void
test_varbuf_dupc(void)
{
	struct varbuf vb;

	varbufinit(&vb, 5);

	varbufdupc(&vb, 'z', 10);
	test_pass(vb.used == 10);
	test_pass(vb.size >= vb.used);
	test_mem(vb.buf, ==, "zzzzzzzzzz", 10);

	varbufdupc(&vb, 'y', 5);
	test_pass(vb.used == 15);
	test_pass(vb.size >= vb.used);
	test_mem(vb.buf, ==, "zzzzzzzzzzyyyyy", 15);

	varbuffree(&vb);
}

static void
test_varbuf_substc(void)
{
	struct varbuf vb;

	varbufinit(&vb, 5);

	varbufaddbuf(&vb, "1234a5678a9012a", 15);

	varbufsubstc(&vb, 'a', 'z');
	test_pass(vb.used == 15);
	test_pass(vb.size >= vb.used);
	test_mem(vb.buf, ==, "1234z5678z9012z", 15);

	varbuffree(&vb);
}

static void
test_varbuf_reset(void)
{
	struct varbuf vb;

	varbufinit(&vb, 10);

	varbufaddbuf(&vb, "1234567890", 10);

	varbufreset(&vb);
	test_pass(vb.used == 0);
	test_pass(vb.size >= vb.used);

	varbufaddbuf(&vb, "abcdefghijklmno", 15);
	test_pass(vb.used == 15);
	test_pass(vb.size >= vb.used);
	test_mem(vb.buf, ==, "abcdefghijklmno", 15);

	varbuffree(&vb);
}

static void
test(void)
{
	test_varbuf_init();
	test_varbuf_prealloc();
	test_varbuf_addbuf();
	test_varbuf_addc();
	test_varbuf_dupc();
	test_varbuf_substc();
	test_varbuf_reset();

	/* FIXME: Complete. */
}