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#include "mem_copy.h"
#include <library/cpp/testing/unittest/registar.h>
namespace {
class TAssignBCalled: public yexception {
};
struct TB {
inline TB& operator=(const TB&) {
throw TAssignBCalled();
return *this;
}
};
struct TC: public TB {
};
}
Y_DECLARE_PODTYPE(TB);
Y_UNIT_TEST_SUITE(TestMemCopy) {
Y_UNIT_TEST(Test1) {
char buf[] = "123";
char buf1[sizeof(buf)];
UNIT_ASSERT_EQUAL(MemCopy(buf1, buf, sizeof(buf)), buf1);
for (size_t i = 0; i < sizeof(buf); ++i) {
UNIT_ASSERT_VALUES_EQUAL(buf[i], buf1[i]);
}
}
static int x = 0;
struct TA {
inline TA() {
X = ++x;
}
int X;
};
Y_UNIT_TEST(Test2) {
x = 0;
TA a1[5];
TA a2[5];
UNIT_ASSERT_VALUES_EQUAL(a1[0].X, 1);
UNIT_ASSERT_VALUES_EQUAL(a2[0].X, 6);
MemCopy(a2, a1, 5);
for (size_t i = 0; i < 5; ++i) {
UNIT_ASSERT_VALUES_EQUAL(a1[i].X, a2[i].X);
}
}
Y_UNIT_TEST(Test3) {
TB b1[5];
TB b2[5];
MemCopy(b2, b1, 5);
}
Y_UNIT_TEST(Test4) {
TC c1[5];
TC c2[5];
UNIT_ASSERT_EXCEPTION(MemCopy(c2, c1, 5), TAssignBCalled);
}
template <class T>
inline void FillX(T* b, T* e) {
int tmp = 0;
while (b != e) {
(b++)->X = ++tmp;
}
}
Y_UNIT_TEST(Test5) {
struct TD {
int X;
};
TD orig[50];
for (ssize_t i = -15; i < 15; ++i) {
TD* b = orig + 20;
TD* e = b + 10;
FillX(b, e);
TD* to = b + i;
MemMove(to, b, e - b - 1);
for (size_t j = 0; j < (e - b) - (size_t)1; ++j) {
UNIT_ASSERT_VALUES_EQUAL(to[j].X, j + 1);
}
}
}
Y_UNIT_TEST(TestEmpty) {
char* tmp = nullptr;
UNIT_ASSERT(MemCopy(tmp, tmp, 0) == nullptr);
UNIT_ASSERT(MemMove(tmp, tmp, 0) == nullptr);
}
}
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