transmission/libtransmission/bitfield-test.c

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/*
* This file Copyright (C) 2010-2014 Mnemosyne LLC
*
* It may be used under the GNU GPL versions 2 or 3
* or any future license endorsed by Mnemosyne LLC.
*
* $Id$
*/
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#include <string.h> /* strlen () */
#include "transmission.h"
#include "crypto-utils.h"
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#include "bitfield.h"
#include "utils.h" /* tr_free */
#include "libtransmission-test.h"
static int
test_bitfield_count_range (void)
{
int i;
int n;
int begin;
int end;
int count1;
int count2;
const int bitCount = 100 + tr_rand_int_weak (1000);
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tr_bitfield bf;
/* generate a random bitfield */
tr_bitfieldConstruct (&bf, bitCount);
for (i=0, n=tr_rand_int_weak (bitCount); i<n; ++i)
tr_bitfieldAdd (&bf, tr_rand_int_weak (bitCount));
begin = tr_rand_int_weak (bitCount);
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do
end = tr_rand_int_weak (bitCount);
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while (end == begin);
/* ensure end <= begin */
if (end < begin)
{
const int tmp = begin;
begin = end;
end = tmp;
}
/* test the bitfield */
count1 = 0;
for (i=begin; i<end; ++i)
if (tr_bitfieldHas (&bf, i))
++count1;
count2 = tr_bitfieldCountRange (&bf, begin, end);
check (count1 == count2);
/* cleanup */
tr_bitfieldDestruct (&bf);
return 0;
}
static int
test_bitfields (void)
{
unsigned int i;
unsigned int bitcount = 500;
tr_bitfield field;
tr_bitfieldConstruct (&field, bitcount);
/* test tr_bitfieldAdd */
for (i=0; i<bitcount; i++)
if (! (i % 7))
tr_bitfieldAdd (&field, i);
for (i=0; i<bitcount; i++)
check (tr_bitfieldHas (&field, i) == (! (i % 7)));
/* test tr_bitfieldAddRange */
tr_bitfieldAddRange (&field, 0, bitcount);
for (i=0; i<bitcount; i++)
check (tr_bitfieldHas (&field, i));
/* test tr_bitfieldRemRange in the middle of a boundary */
tr_bitfieldRemRange (&field, 4, 21);
for (i=0; i<64; i++)
check (tr_bitfieldHas (&field, i) == ((i < 4) || (i >= 21)));
/* test tr_bitfieldRemRange on the boundaries */
tr_bitfieldAddRange (&field, 0, 64);
tr_bitfieldRemRange (&field, 8, 24);
for (i=0; i<64; i++)
check (tr_bitfieldHas (&field, i) == ((i < 8) || (i >= 24)));
/* test tr_bitfieldRemRange when begin & end is on the same word */
tr_bitfieldAddRange (&field, 0, 64);
tr_bitfieldRemRange (&field, 4, 5);
for (i=0; i<64; i++)
check (tr_bitfieldHas (&field, i) == ((i < 4) || (i >= 5)));
/* test tr_bitfieldAddRange */
tr_bitfieldRemRange (&field, 0, 64);
tr_bitfieldAddRange (&field, 4, 21);
for (i=0; i<64; i++)
check (tr_bitfieldHas (&field, i) == ((4 <= i) && (i < 21)));
/* test tr_bitfieldAddRange on the boundaries */
tr_bitfieldRemRange (&field, 0, 64);
tr_bitfieldAddRange (&field, 8, 24);
for (i=0; i<64; i++)
check (tr_bitfieldHas (&field, i) == ((8 <= i) && (i < 24)));
/* test tr_bitfieldAddRange when begin & end is on the same word */
tr_bitfieldRemRange (&field, 0, 64);
tr_bitfieldAddRange (&field, 4, 5);
for (i=0; i<64; i++)
check (tr_bitfieldHas (&field, i) == ((4 <= i) && (i < 5)));
tr_bitfieldDestruct (&field);
return 0;
}
int
main (void)
{
int l;
int ret;
const testFunc tests[] = { test_bitfields };
if ((ret = runTests (tests, NUM_TESTS (tests))))
return ret;
/* bitfield count range */
for (l=0; l<10000; ++l)
if ((ret = test_bitfield_count_range ()))
return ret;
return 0;
}