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#include <cppunit/CompilerOutputter.h>
#include <cppunit/TestCaller.h>
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/TestFactoryRegistry.h>
#include <cppunit/ui/text/TestRunner.h>
#include "securearray.hh"
class SecureArrayTest : public CppUnit::TestFixture {
public:
static CppUnit::TestSuite *suite() {
CppUnit::TestSuite *suiteOfTests =
new CppUnit::TestSuite("SecureArrayTest");
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"should not allow initialization with negative size",
&SecureArrayTest::testNegativeSize));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"test empty array", &SecureArrayTest::testEmptyArray));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"should set empty array upon destruction",
&SecureArrayTest::testZeroOutBuffer));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"copy constructor", &SecureArrayTest::testCopy));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"assignment", &SecureArrayTest::testAssignment));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"move", &SecureArrayTest::testMove));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"move assignment", &SecureArrayTest::testMove));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"equality", &SecureArrayTest::testEquality));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"should properly implement index operator",
&SecureArrayTest::testIndexOperator));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"should properly handle assignment of empty array",
&SecureArrayTest::testEmptyAssignment));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"should properly handle copy of empty array",
&SecureArrayTest::testEmptyCopy));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"should properly handle move of empty array",
&SecureArrayTest::testEmptyMove));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"should properly add two secure arrays",
&SecureArrayTest::testAdd));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"test toSecureArray", &SecureArrayTest::testToSecureArray));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"test toSecureArray with empty string",
&SecureArrayTest::testToSecureArrayEmpty));
suiteOfTests->addTest(new CppUnit::TestCaller<SecureArrayTest>(
"test SecureArray copy operator",
&SecureArrayTest::testCopyOperator));
return suiteOfTests;
}
void testNegativeSize() {
CPPUNIT_ASSERT_THROW(yapet::SecureArray{-1}, std::invalid_argument);
}
void testEmptyArray() {
yapet::SecureArray *ptr{new yapet::SecureArray()};
CPPUNIT_ASSERT(ptr->size() == 0);
CPPUNIT_ASSERT(ptr->operator*() == nullptr);
delete ptr;
ptr = new yapet::SecureArray(0);
CPPUNIT_ASSERT(ptr->size() == 0);
CPPUNIT_ASSERT(ptr->operator*() == nullptr);
delete ptr;
}
#if defined(__SANITIZE_ADDRESS__)
#define USES_ADDRESS_SANITIZER 1
#elif defined(__has_feature)
#if __has_feature(address_sanitizer)
#define USES_ADDRESS_SANITIZER 1
#endif
#endif
#ifdef USES_ADDRESS_SANITIZER
// We cannot run the test when the address sanitizer is used, since we're
// accessing memory after free.
void testZeroOutBuffer() {}
#else
void testZeroOutBuffer() {
auto subject = new yapet::SecureArray{3};
for (auto i = 0; i < 3; i++) {
subject->operator*()[i] = 42;
}
std::uint8_t *array = **subject;
delete subject;
for (auto i = 0; i < 3; i++) {
// it is not guaranteed that upon free the memory retains it
// content, i.e. zeros.
CPPUNIT_ASSERT(array[i] != 42);
}
}
#endif
void testCopy() {
yapet::SecureArray a = yapet::SecureArray(1);
**a = 42;
yapet::SecureArray b = yapet::SecureArray{a};
CPPUNIT_ASSERT(**a == 42);
CPPUNIT_ASSERT(**a == **b);
CPPUNIT_ASSERT(*a != *b);
}
void testAssignment() {
yapet::SecureArray a = yapet::SecureArray{1};
**a = 43;
yapet::SecureArray b = yapet::SecureArray{1};
**b = 42;
a = b;
CPPUNIT_ASSERT(**a == 42);
CPPUNIT_ASSERT(*a != *b);
}
void testMove() {
yapet::SecureArray a = yapet::SecureArray{1};
**a = 42;
yapet::SecureArray b{std::move(a)};
CPPUNIT_ASSERT(nullptr == *a);
CPPUNIT_ASSERT(**b == 42);
CPPUNIT_ASSERT(a.size() == 0);
CPPUNIT_ASSERT(b.size() == 1);
}
void testMoveAssignment() {
yapet::SecureArray a = yapet::SecureArray{1};
**a = 42;
std::uint8_t *ptrAArray = *a;
yapet::SecureArray b = yapet::SecureArray{1};
**b = 43;
std::uint8_t *ptrBArray = *b;
b = std::move(a);
CPPUNIT_ASSERT(nullptr == *a);
CPPUNIT_ASSERT(a.size() == 0);
CPPUNIT_ASSERT(b.size() == 1);
CPPUNIT_ASSERT(**b == 42);
CPPUNIT_ASSERT(ptrAArray == ptrBArray);
CPPUNIT_ASSERT(*ptrAArray == 0);
}
void testEquality() {
yapet::SecureArray a = yapet::SecureArray{1};
**a = 42;
CPPUNIT_ASSERT(a == a);
yapet::SecureArray b = yapet::SecureArray{1};
**b = 42;
CPPUNIT_ASSERT(a == b);
CPPUNIT_ASSERT(!(a != b));
b = yapet::SecureArray{1};
**b = 43;
CPPUNIT_ASSERT(!(a == b));
CPPUNIT_ASSERT(a != b);
yapet::SecureArray empty;
CPPUNIT_ASSERT(empty == empty);
CPPUNIT_ASSERT(!(a == empty));
CPPUNIT_ASSERT(a != empty);
yapet::SecureArray empty2;
CPPUNIT_ASSERT(empty == empty2);
}
void testIndexOperator() {
yapet::SecureArray secureArray(3);
CPPUNIT_ASSERT_THROW(secureArray[-1], std::out_of_range);
CPPUNIT_ASSERT_THROW(secureArray[4], std::out_of_range);
CPPUNIT_ASSERT_THROW(secureArray[-1] = 2, std::out_of_range);
CPPUNIT_ASSERT_THROW(secureArray[4] = 3, std::out_of_range);
for (auto i = 0; i < 3; i++) {
secureArray[i] = i;
CPPUNIT_ASSERT(secureArray[i] == i);
}
}
void testEmptyAssignment() {
yapet::SecureArray empty;
yapet::SecureArray nonEmpty{1};
nonEmpty = empty;
CPPUNIT_ASSERT(nonEmpty.size() == 0);
CPPUNIT_ASSERT(*nonEmpty == nullptr);
yapet::SecureArray nonEmpty2{2};
(*nonEmpty2)[0] = 'A';
(*nonEmpty2)[1] = 'B';
empty = nonEmpty2;
CPPUNIT_ASSERT(empty.size() == 2);
CPPUNIT_ASSERT((*empty)[0] == (std::uint8_t)'A');
CPPUNIT_ASSERT((*empty)[1] == (std::uint8_t)'B');
}
void testEmptyCopy() {
yapet::SecureArray empty;
yapet::SecureArray empty2{empty};
CPPUNIT_ASSERT(empty2.size() == 0);
CPPUNIT_ASSERT(*empty2 == nullptr);
yapet::SecureArray nonEmpty{2};
(*nonEmpty)[0] = 'A';
(*nonEmpty)[1] = 'B';
yapet::SecureArray empty3{nonEmpty};
CPPUNIT_ASSERT(empty3.size() == 2);
CPPUNIT_ASSERT((*empty3)[0] == (std::uint8_t)'A');
CPPUNIT_ASSERT((*empty3)[1] == (std::uint8_t)'B');
}
void testEmptyMove() {
yapet::SecureArray empty;
yapet::SecureArray empty2{std::move(empty)};
CPPUNIT_ASSERT(empty2.size() == 0);
CPPUNIT_ASSERT(*empty2 == nullptr);
yapet::SecureArray nonEmpty{2};
(*nonEmpty)[0] = 'A';
(*nonEmpty)[1] = 'B';
yapet::SecureArray empty3{std::move(nonEmpty)};
CPPUNIT_ASSERT(empty3.size() == 2);
CPPUNIT_ASSERT((*empty3)[0] == (std::uint8_t)'A');
CPPUNIT_ASSERT((*empty3)[1] == (std::uint8_t)'B');
}
void testAdd() {
yapet::SecureArray a{1};
**a = 'A';
yapet::SecureArray b{1};
**b = 'B';
yapet::SecureArray result = a + b;
CPPUNIT_ASSERT(result.size() == 2);
CPPUNIT_ASSERT(**result == 'A');
CPPUNIT_ASSERT((*result)[1] == 'B');
}
void testToSecureArray() {
yapet::SecureArray a = yapet::toSecureArray("ABCDE");
yapet::SecureArray b = yapet::toSecureArray(std::string{"ABCDE"});
yapet::SecureArray c = yapet::toSecureArray(
reinterpret_cast<const std::uint8_t *>("ABCDE"), 6);
CPPUNIT_ASSERT(a == b);
CPPUNIT_ASSERT(b == c);
CPPUNIT_ASSERT(a.size() == 6);
CPPUNIT_ASSERT(b.size() == 6);
CPPUNIT_ASSERT(c.size() == 6);
}
void testToSecureArrayEmpty() {
yapet::SecureArray a = yapet::toSecureArray("");
yapet::SecureArray expectedEmptySecureArrayFromCstring{1};
**expectedEmptySecureArrayFromCstring = '\0';
CPPUNIT_ASSERT(a == expectedEmptySecureArrayFromCstring);
yapet::SecureArray b = yapet::toSecureArray(std::string{""});
CPPUNIT_ASSERT(b == expectedEmptySecureArrayFromCstring);
}
void testCopyOperator() {
yapet::SecureArray empty{};
yapet::SecureArray a{1};
**a = 'A';
empty << a;
CPPUNIT_ASSERT(empty.size() == 0);
CPPUNIT_ASSERT(*empty == nullptr);
CPPUNIT_ASSERT(a.size() == 1);
CPPUNIT_ASSERT(**a == 'A');
a << empty;
CPPUNIT_ASSERT(a.size() == 1);
CPPUNIT_ASSERT(**a == 'A');
CPPUNIT_ASSERT(empty.size() == 0);
CPPUNIT_ASSERT(*empty == nullptr);
yapet::SecureArray bc{2};
(*bc)[0] = 'B';
(*bc)[1] = 'C';
a << bc;
CPPUNIT_ASSERT(a.size() == 1);
CPPUNIT_ASSERT(**a == 'B');
CPPUNIT_ASSERT(bc.size() == 2);
CPPUNIT_ASSERT((*bc)[0] == 'B' && (*bc)[1] == 'C');
CPPUNIT_ASSERT(*a != *bc);
yapet::SecureArray d{1};
**d = 'D';
bc << d;
CPPUNIT_ASSERT(bc.size() == 1);
CPPUNIT_ASSERT(**bc == 'D');
CPPUNIT_ASSERT(d.size() == 1);
CPPUNIT_ASSERT(**d == 'D');
CPPUNIT_ASSERT(*bc != *d);
}
};
int main() {
CppUnit::TextUi::TestRunner runner;
runner.addTest(SecureArrayTest::suite());
return runner.run() ? 0 : 1;
}
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