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#include "BitfieldMan.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_SUITE_END();
private:
public:
void setUp() {
}
void testGetBlockSize();
void testGetFirstMissingUnusedIndex();
void testIsAllBitSet();
void testFilter();
void testGetMissingIndex();
void testGetSparceMissingUnusedIndex();
};
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(int i = 0; i < bt1.countBlock(); i++) {
CPPUNIT_ASSERT(bt1.setBit(i));
}
CPPUNIT_ASSERT(bt1.isAllBitSet());
}
void BitfieldManTest::testFilter() {
// set random seed here in order to get same random numbers.
srandom(100);
BitfieldMan btman(2, 32);
// 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((long long int)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((long long int)4, btman.getFilteredTotalLength());
CPPUNIT_ASSERT(btman.isAllBitSet());
BitfieldMan btman2(2, 31);
btman2.addFilter(0, 31);
btman2.enableFilter();
CPPUNIT_ASSERT_EQUAL((long long int)31, btman2.getFilteredTotalLength());
}
void BitfieldManTest::testGetMissingIndex() {
srandom(100);
BitfieldMan bt1(1024, 1024*256);
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(80, bt1.getMissingIndex(bitArray, 32));
unsigned char bitArray2[] = {
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0x00, 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(80, bt1.getMissingIndex(bitArray2, 32));
unsigned char bitArray3[] = {
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 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,
};
CPPUNIT_ASSERT_EQUAL(60, bt1.getMissingIndex(bitArray3, 32));
unsigned char bitArray4[] = {
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
};
CPPUNIT_ASSERT_EQUAL(0, bt1.getMissingIndex(bitArray4, 32));
unsigned char bitArray5[] = {
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(bitArray5, 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());
}
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