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#include "utility.h"
#include "ymath.h"
#include <library/cpp/testing/unittest/registar.h>
// DO_NOT_STYLE
class TTest {
public:
inline TTest(int val)
: Val(val)
{
}
inline void Swap(TTest& t) {
DoSwap(Val, t.Val);
}
int Val;
private:
TTest(const TTest&);
TTest& operator=(const TTest&);
};
struct TUnorderedTag {
TStringBuf Tag;
};
static bool operator<(const TUnorderedTag, const TUnorderedTag) {
return false;
}
static bool operator>(const TUnorderedTag, const TUnorderedTag) = delete;
Y_UNIT_TEST_SUITE(TUtilityTest) {
Y_UNIT_TEST(TestSwapPrimitive) {
int i = 0;
int j = 1;
DoSwap(i, j);
UNIT_ASSERT_EQUAL(i, 1);
UNIT_ASSERT_EQUAL(j, 0);
}
Y_UNIT_TEST(TestSwapClass) {
TTest i(0);
TTest j(1);
DoSwap(i, j);
UNIT_ASSERT_EQUAL(i.Val, 1);
UNIT_ASSERT_EQUAL(j.Val, 0);
}
Y_UNIT_TEST(TestMaxMin) {
static_assert(Min(10, 3, 8) == 3, "Min doesn't work");
static_assert(Max(10, 3, 8) == 10, "Max doesn't work");
UNIT_ASSERT_EQUAL(Min(10, 3, 8), 3);
UNIT_ASSERT_EQUAL(Max(3.5, 4.2, 8.1, 99.025, 0.33, 29.0), 99.025);
UNIT_ASSERT_VALUES_EQUAL(Min(TUnorderedTag{"first"}, TUnorderedTag{"second"}).Tag, "first");
UNIT_ASSERT_VALUES_EQUAL(Max(TUnorderedTag{"first"}, TUnorderedTag{"second"}).Tag, "first");
UNIT_ASSERT_VALUES_EQUAL(Min(TUnorderedTag{"first"}, TUnorderedTag{"second"}, TUnorderedTag{"third"}).Tag, "first");
UNIT_ASSERT_VALUES_EQUAL(Max(TUnorderedTag{"first"}, TUnorderedTag{"second"}, TUnorderedTag{"third"}).Tag, "first");
}
Y_UNIT_TEST(TestMean) {
UNIT_ASSERT_EQUAL(Mean(5), 5);
UNIT_ASSERT_EQUAL(Mean(1, 2, 3), 2);
UNIT_ASSERT_EQUAL(Mean(6, 5, 4), 5);
UNIT_ASSERT_EQUAL(Mean(1, 2), 1.5);
UNIT_ASSERT(Abs(Mean(1., 2., 7.5) - 3.5) < std::numeric_limits<double>::epsilon());
}
Y_UNIT_TEST(TestZeroInitWithDefaultZeros) {
struct TStructWithPaddingBytes: public TZeroInit<TStructWithPaddingBytes> {
TStructWithPaddingBytes()
: TZeroInit<TStructWithPaddingBytes>() {
}
bool Field1_ = static_cast<bool>(0);
// here between Field1_ and Field2_ will be padding bytes
i64 Field2_ = 0;
};
TStructWithPaddingBytes foo{};
// all bytes must be zeroes, and MSAN will not complain about reading from padding bytes
const char* const fooPtr = (char*)&foo;
for (size_t i = 0; i < sizeof(TStructWithPaddingBytes); ++i) {
const char byte = fooPtr[i];
UNIT_ASSERT_EQUAL(byte, 0);
}
}
Y_UNIT_TEST(TestZeroInitWithDefaultNonZeros) {
struct TStructWithPaddingBytes: public TZeroInit<TStructWithPaddingBytes> {
TStructWithPaddingBytes()
: TZeroInit<TStructWithPaddingBytes>() {
}
bool Field1_ = true;
// here between Field1_ and Field2_ will be padding bytes
i64 Field2_ = 100500;
};
TStructWithPaddingBytes foo{};
// check that default values are set correctly
UNIT_ASSERT_EQUAL(foo.Field1_, true);
UNIT_ASSERT_EQUAL(foo.Field2_, 100500);
const char* const fooPtr = (char*)&foo;
// just reading all bytes, and MSAN must not complain about reading padding bytes
for (size_t i = 0; i < sizeof(TStructWithPaddingBytes); ++i) {
const char byte = fooPtr[i];
UNIT_ASSERT_EQUAL(byte, byte);
}
}
Y_UNIT_TEST(TestClampValNoClamp) {
double val = 2;
double lo = 1;
double hi = 3;
const double& clamped = ClampVal(val, lo, hi);
UNIT_ASSERT_EQUAL(clamped, val);
UNIT_ASSERT_EQUAL(&clamped, &val);
}
Y_UNIT_TEST(TestClampValLo) {
double val = 2;
double lo = 3;
double hi = 4;
const double& clamped = ClampVal(val, lo, hi);
UNIT_ASSERT_EQUAL(clamped, lo);
UNIT_ASSERT_EQUAL(&clamped, &lo);
}
Y_UNIT_TEST(TestClampValHi) {
double val = 4;
double lo = 3;
double hi = 2;
const double& clamped = ClampVal(val, lo, hi);
UNIT_ASSERT_EQUAL(clamped, hi);
UNIT_ASSERT_EQUAL(&clamped, &hi);
}
Y_UNIT_TEST(TestSecureZero) {
constexpr size_t checkSize = 128;
char test[checkSize];
// fill with garbage
for (size_t i = 0; i < checkSize; ++i) {
test[i] = i;
}
SecureZero(test, checkSize);
for (size_t i = 0; i < checkSize; ++i) {
UNIT_ASSERT_EQUAL(test[i], 0);
}
}
Y_UNIT_TEST(TestSecureZeroTemplate) {
constexpr size_t checkSize = 128;
char test[checkSize];
// fill with garbage
for (size_t i = 0; i < checkSize; ++i) {
test[i] = i;
}
SecureZero(test);
for (size_t i = 0; i < checkSize; ++i) {
UNIT_ASSERT_EQUAL(test[i], 0);
}
}
}
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