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#include "BitfieldMan.h"
#include "FixedNumberRandomizer.h"
#include "BitfieldManFactory.h"
#include <string>
#include <cppunit/extensions/HelperMacros.h>
using namespace std;
class BitfieldManTest:public CppUnit::TestFixture {
CPPUNIT_TEST_SUITE(BitfieldManTest);
CPPUNIT_TEST(testGetBlockSize);
CPPUNIT_TEST(testGetFirstMissingUnusedIndex);
CPPUNIT_TEST(testIsAllBitSet);
CPPUNIT_TEST(testFilter);
CPPUNIT_TEST(testGetMissingIndex);
CPPUNIT_TEST(testGetSparceMissingUnusedIndex);
CPPUNIT_TEST(testIsBitSetOffsetRange);
CPPUNIT_TEST(testGetMissingUnusedLength);
CPPUNIT_TEST(testSetBitRange);
CPPUNIT_TEST_SUITE_END();
private:
RandomizerHandle fixedNumberRandomizer;
public:
BitfieldManTest():fixedNumberRandomizer(0) {
FixedNumberRandomizer* randomizer = new FixedNumberRandomizer();
randomizer->setFixedNumber(0);
this->fixedNumberRandomizer = randomizer;
}
void setUp() {
}
void testGetBlockSize();
void testGetFirstMissingUnusedIndex();
void testIsAllBitSet();
void testFilter();
void testGetMissingIndex();
void testGetSparceMissingUnusedIndex();
void testIsBitSetOffsetRange();
void testGetMissingUnusedLength();
void testSetBitRange();
};
CPPUNIT_TEST_SUITE_REGISTRATION( BitfieldManTest );
void BitfieldManTest::testGetBlockSize() {
BitfieldMan bt1(1024, 1024*10);
CPPUNIT_ASSERT_EQUAL(1024, bt1.getBlockLength(9));
BitfieldMan bt2(1024, 1024*10+1);
CPPUNIT_ASSERT_EQUAL(1024, bt2.getBlockLength(9));
CPPUNIT_ASSERT_EQUAL(1, bt2.getBlockLength(10));
CPPUNIT_ASSERT_EQUAL(0, bt2.getBlockLength(11));
}
void BitfieldManTest::testGetFirstMissingUnusedIndex() {
BitfieldMan bt1(1024, 1024*10);
unsigned char bitfield[2];
memset(bitfield, 0xff, sizeof(bitfield));
CPPUNIT_ASSERT_EQUAL(0, bt1.getFirstMissingUnusedIndex(bitfield, sizeof(bitfield)));
CPPUNIT_ASSERT(bt1.setUseBit(0));
CPPUNIT_ASSERT_EQUAL(1, bt1.getFirstMissingUnusedIndex(bitfield, sizeof(bitfield)));
CPPUNIT_ASSERT(bt1.unsetUseBit(0));
CPPUNIT_ASSERT_EQUAL(0, bt1.getFirstMissingUnusedIndex(bitfield, sizeof(bitfield)));
CPPUNIT_ASSERT(bt1.setBit(0));
CPPUNIT_ASSERT_EQUAL(1, bt1.getFirstMissingUnusedIndex(bitfield, sizeof(bitfield)));
for(int i = 0; i < 8; i++) {
CPPUNIT_ASSERT(bt1.setBit(i));
}
CPPUNIT_ASSERT_EQUAL(8, bt1.getFirstMissingUnusedIndex(bitfield, sizeof(bitfield)));
CPPUNIT_ASSERT_EQUAL(8, bt1.getFirstMissingUnusedIndex());
CPPUNIT_ASSERT(bt1.setUseBit(8));
CPPUNIT_ASSERT_EQUAL(9, bt1.getFirstMissingUnusedIndex());
}
void BitfieldManTest::testIsAllBitSet() {
BitfieldMan bt1(1024, 1024*10);
CPPUNIT_ASSERT(!bt1.isAllBitSet());
bt1.setBit(1);
CPPUNIT_ASSERT(!bt1.isAllBitSet());
for(int i = 0; i < 8; i++) {
CPPUNIT_ASSERT(bt1.setBit(i));
}
CPPUNIT_ASSERT(!bt1.isAllBitSet());
for(int32_t i = 0; i < bt1.countBlock(); i++) {
CPPUNIT_ASSERT(bt1.setBit(i));
}
CPPUNIT_ASSERT(bt1.isAllBitSet());
}
void BitfieldManTest::testFilter() {
BitfieldMan btman(2, 32);
btman.setRandomizer(fixedNumberRandomizer);
// test offset=4, length=12
btman.addFilter(4, 12);
btman.enableFilter();
unsigned char peerBt[2];
memset(peerBt, 0xff, sizeof(peerBt));
int index;
index = btman.getMissingUnusedIndex(peerBt, sizeof(peerBt));
btman.setUseBit(index);
CPPUNIT_ASSERT_EQUAL(2, index);
index = btman.getMissingUnusedIndex(peerBt, sizeof(peerBt));
btman.setUseBit(index);
CPPUNIT_ASSERT_EQUAL(3, index);
index = btman.getMissingUnusedIndex(peerBt, sizeof(peerBt));
btman.setUseBit(index);
CPPUNIT_ASSERT_EQUAL(4, index);
index = btman.getMissingUnusedIndex(peerBt, sizeof(peerBt));
btman.setUseBit(index);
CPPUNIT_ASSERT_EQUAL(5, index);
index = btman.getMissingUnusedIndex(peerBt, sizeof(peerBt));
btman.setUseBit(index);
CPPUNIT_ASSERT_EQUAL(6, index);
index = btman.getMissingUnusedIndex(peerBt, sizeof(peerBt));
btman.setUseBit(index);
CPPUNIT_ASSERT_EQUAL(7, index);
index = btman.getMissingUnusedIndex(peerBt, sizeof(peerBt));
btman.setUseBit(index);
CPPUNIT_ASSERT_EQUAL(-1, index);
CPPUNIT_ASSERT_EQUAL((int64_t)12, btman.getFilteredTotalLength());
// test offset=5, length=2
btman.clearAllBit();
btman.clearAllUseBit();
btman.clearFilter();
btman.addFilter(5, 2);
btman.enableFilter();
index = btman.getMissingUnusedIndex(peerBt, sizeof(peerBt));
btman.setUseBit(index);
btman.setBit(index);
CPPUNIT_ASSERT_EQUAL(2, index);
index = btman.getMissingUnusedIndex(peerBt, sizeof(peerBt));
btman.setUseBit(index);
btman.setBit(index);
CPPUNIT_ASSERT_EQUAL(3, index);
index = btman.getMissingUnusedIndex(peerBt, sizeof(peerBt));
btman.setUseBit(index);
CPPUNIT_ASSERT_EQUAL(-1, index);
CPPUNIT_ASSERT_EQUAL((int64_t)4, btman.getFilteredTotalLength());
CPPUNIT_ASSERT(btman.isFilteredAllBitSet());
BitfieldMan btman2(2, 31);
btman2.addFilter(0, 31);
btman2.enableFilter();
CPPUNIT_ASSERT_EQUAL((int64_t)31, btman2.getFilteredTotalLength());
}
void BitfieldManTest::testGetMissingIndex() {
BitfieldMan bt1(1024, 1024*256);
bt1.setRandomizer(fixedNumberRandomizer);
unsigned char bitArray[] = {
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
};
CPPUNIT_ASSERT_EQUAL(0, bt1.getMissingIndex(bitArray, 32));
unsigned char bitArray2[] = {
0x0f, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
};
CPPUNIT_ASSERT_EQUAL(4, bt1.getMissingIndex(bitArray2, 32));
unsigned char bitArray3[] = {
0x00, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
};
CPPUNIT_ASSERT_EQUAL(8, bt1.getMissingIndex(bitArray3, 32));
unsigned char bitArray4[] = {
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
};
CPPUNIT_ASSERT_EQUAL(-1, bt1.getMissingIndex(bitArray4, 32));
}
void BitfieldManTest::testGetSparceMissingUnusedIndex() {
BitfieldMan bitfield(1024*1024, 10*1024*1024);
CPPUNIT_ASSERT_EQUAL(0, bitfield.getSparseMissingUnusedIndex());
bitfield.setBit(0);
CPPUNIT_ASSERT_EQUAL(5, bitfield.getSparseMissingUnusedIndex());
bitfield.setUseBit(5);
CPPUNIT_ASSERT_EQUAL(3, bitfield.getSparseMissingUnusedIndex());
bitfield.setBit(3);
CPPUNIT_ASSERT_EQUAL(8, bitfield.getSparseMissingUnusedIndex());
bitfield.setBit(8);
CPPUNIT_ASSERT_EQUAL(2, bitfield.getSparseMissingUnusedIndex());
bitfield.setBit(2);
CPPUNIT_ASSERT_EQUAL(7, bitfield.getSparseMissingUnusedIndex());
bitfield.setBit(7);
CPPUNIT_ASSERT_EQUAL(1, bitfield.getSparseMissingUnusedIndex());
bitfield.setBit(1);
CPPUNIT_ASSERT_EQUAL(4, bitfield.getSparseMissingUnusedIndex());
bitfield.setBit(4);
CPPUNIT_ASSERT_EQUAL(6, bitfield.getSparseMissingUnusedIndex());
bitfield.setBit(6);
CPPUNIT_ASSERT_EQUAL(9, bitfield.getSparseMissingUnusedIndex());
bitfield.setBit(9);
CPPUNIT_ASSERT_EQUAL(-1, bitfield.getSparseMissingUnusedIndex());
}
void BitfieldManTest::testIsBitSetOffsetRange()
{
int64_t totalLength = (int64_t)4*1024*1024*1024;
int32_t pieceLength = 4*1024*1024;
BitfieldMan bitfield(pieceLength, totalLength);
bitfield.setAllBit();
CPPUNIT_ASSERT(!bitfield.isBitSetOffsetRange(0, 0));
CPPUNIT_ASSERT(!bitfield.isBitSetOffsetRange(0, -1));
CPPUNIT_ASSERT(!bitfield.isBitSetOffsetRange(totalLength, 100));
CPPUNIT_ASSERT(!bitfield.isBitSetOffsetRange(totalLength+1, 100));
CPPUNIT_ASSERT(bitfield.isBitSetOffsetRange(0, totalLength));
CPPUNIT_ASSERT(bitfield.isBitSetOffsetRange(0, totalLength+1));
bitfield.clearAllBit();
bitfield.setBit(100);
bitfield.setBit(101);
CPPUNIT_ASSERT(bitfield.isBitSetOffsetRange(pieceLength*100, pieceLength*2));
CPPUNIT_ASSERT(!bitfield.isBitSetOffsetRange(pieceLength*100-10, pieceLength*2));
CPPUNIT_ASSERT(!bitfield.isBitSetOffsetRange(pieceLength*100, pieceLength*2+1));
bitfield.clearAllBit();
bitfield.setBit(100);
bitfield.setBit(102);
CPPUNIT_ASSERT(!bitfield.isBitSetOffsetRange(pieceLength*100, pieceLength*3));
}
void BitfieldManTest::testGetMissingUnusedLength()
{
int64_t totalLength = 1024*10+10;
int32_t blockLength = 1024;
BitfieldMan bf(blockLength, totalLength);
// from index 0 and all blocks are unused and not acquired.
CPPUNIT_ASSERT_EQUAL((int64_t)totalLength, bf.getMissingUnusedLength(0));
// from index 10 and all blocks are unused and not acquired.
CPPUNIT_ASSERT_EQUAL((int64_t)10, bf.getMissingUnusedLength(10));
// from index -1
CPPUNIT_ASSERT_EQUAL((int64_t)0, bf.getMissingUnusedLength(-1));
// from index 11
CPPUNIT_ASSERT_EQUAL((int64_t)0, bf.getMissingUnusedLength(11));
// from index 12
CPPUNIT_ASSERT_EQUAL((int64_t)0, bf.getMissingUnusedLength(12));
// from index 0 and 5th block is used.
bf.setUseBit(5);
CPPUNIT_ASSERT_EQUAL((int64_t)5*blockLength, bf.getMissingUnusedLength(0));
// from index 0 and 4th block is acquired.
bf.setBit(4);
CPPUNIT_ASSERT_EQUAL((int64_t)4*blockLength, bf.getMissingUnusedLength(0));
// from index 1
CPPUNIT_ASSERT_EQUAL((int64_t)3*blockLength, bf.getMissingUnusedLength(1));
}
void BitfieldManTest::testSetBitRange()
{
int32_t blockLength = 1024*1024;
int64_t totalLength = 10*blockLength;
BitfieldMan bf(blockLength, totalLength);
bf.setBitRange(0, 4);
for(int32_t i = 0; i < 5; ++i) {
CPPUNIT_ASSERT(bf.isBitSet(i));
}
for(int32_t i = 5; i < 10; ++i) {
CPPUNIT_ASSERT(!bf.isBitSet(i));
}
CPPUNIT_ASSERT_EQUAL(int64_t(5*blockLength), bf.getCompletedLength());
}
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