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