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#include "bitfield.h"
#include <cppunit/extensions/HelperMacros.h>
namespace aria2 {
class bitfieldTest:public CppUnit::TestFixture {
CPPUNIT_TEST_SUITE(bitfieldTest);
CPPUNIT_TEST(testTest);
CPPUNIT_TEST(testCountBit32);
CPPUNIT_TEST(testCountSetBit);
CPPUNIT_TEST(testLastByteMask);
CPPUNIT_TEST_SUITE_END();
private:
public:
void testTest();
void testCountBit32();
void testCountSetBit();
void testLastByteMask();
};
CPPUNIT_TEST_SUITE_REGISTRATION( bitfieldTest );
void bitfieldTest::testTest()
{
unsigned char bitfield[] = { 0xaa };
CPPUNIT_ASSERT(bitfield::test(bitfield, 8, 0));
CPPUNIT_ASSERT(!bitfield::test(bitfield, 8, 1));
}
void bitfieldTest::testCountBit32()
{
CPPUNIT_ASSERT_EQUAL((size_t)32, bitfield::countBit32(UINT32_MAX));
CPPUNIT_ASSERT_EQUAL((size_t)8, bitfield::countBit32(255));
}
void bitfieldTest::testCountSetBit()
{
unsigned char bitfield[] = { 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xf9 };
// (nbits+7)/8 == 0 && nbits%32 == 0
CPPUNIT_ASSERT_EQUAL((size_t)62, bitfield::countSetBit(bitfield, 64));
// (nbits+7)/8 != 0 && nbits%32 != 0 && len%4 == 0
CPPUNIT_ASSERT_EQUAL((size_t)56, bitfield::countSetBit(bitfield, 56));
// (nbits+7)/8 != 0 && nbits%32 != 0 && len%4 != 0
CPPUNIT_ASSERT_EQUAL((size_t)40, bitfield::countSetBit(bitfield, 40));
// (nbits+7)/8 == 0 && nbits%32 != 0
CPPUNIT_ASSERT_EQUAL((size_t)61, bitfield::countSetBit(bitfield, 63));
// nbts == 0
CPPUNIT_ASSERT_EQUAL((size_t)0, bitfield::countSetBit(bitfield, 0));
}
void bitfieldTest::testLastByteMask()
{
CPPUNIT_ASSERT_EQUAL((unsigned int)0,
(unsigned int)bitfield::lastByteMask(0));
CPPUNIT_ASSERT_EQUAL((unsigned int)128,
(unsigned int)bitfield::lastByteMask(9));
CPPUNIT_ASSERT_EQUAL((unsigned int)240,
(unsigned int)bitfield::lastByteMask(12));
CPPUNIT_ASSERT_EQUAL((unsigned int)255,
(unsigned int)bitfield::lastByteMask(16));
}
} // namespace aria2
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