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mirror of synced 2024-11-27 17:10:51 +01:00
ImHex/tests/algorithms/source/common.cpp
RADICS Áron 467e9d1463
Tests for the CRC and hash algorithms (#335)
* Update TEST_ASSERT to do nothing if condition is true

The TEST_ASSERT should not return if the condition is true, because:
- it prevents the usage of multiple TEST_ASSERT in a single test case,
- that behavior differs from how the assert in the standard library
works, and thus may give unexpected results.

Make the TEST_ASSERT to print an error message (with an formatted
optional user part) when it fails to make debugging easier.

* Fix some bugs in TestProvider, add unit tests

Use pointer-to-vector in TestProvider so writes can be tested, too.

* Add test EncodeDecode16, fix some encode16 bugs

The function mbedtls_mpi_write_string needs a bit longer buffer than the
resulting string actually will be.

Known bug: mbedtls_mpi_read_binary ingores initial null bytes

* Add test EncodeDecode64, fix some bugs

The functions mbedtls_base64_encode and mbedtls_base64_decode needs a
bit longer buffer than the resulting string actually will be.

* Remove check for empty data from TestProvider

It can be valid to get the hash of empty string.

* Add tests for CRC calculation

Two type of thests:
- compare the result of the CRC calculation to a known to be good
results,
- generate random data as message, calculate of it's CRC and append that
to the message, the CRC of this new data should be 0.

* Add test for hash algorithms

* Add includes in tests

* Remove the use of C++20 ranges

It seems that Apple Clang does not support range-based constrained
algorithms at this time.

* Replace encode16 implementation

To encode the zero bytes at the begining of the input vector, too.
2021-11-26 22:14:44 +01:00

86 lines
2.6 KiB
C++

#include <hex/helpers/crypto.hpp>
#include "test_provider.hpp"
#include "tests.hpp"
#include <vector>
#include <algorithm>
TEST_SEQUENCE("TestSucceeding") {
TEST_SUCCESS();
};
TEST_SEQUENCE("TestFailing", FAILING) {
TEST_FAIL();
};
TEST_SEQUENCE("TestProvider_read") {
std::vector<u8> data{0xde, 0xad, 0xbe, 0xef, 0x42, 0x2a, 0x00, 0xff};
hex::test::TestProvider provider(&data);
hex::prv::Provider* provider2 = &provider;
u8 buff[1024];
std::fill(std::begin(buff), std::end(buff), 22);
provider2->read(0, buff + 1, 4);
TEST_ASSERT(buff[0] == 22); // should be unchanged
TEST_ASSERT(buff[1] == 0xde);
TEST_ASSERT(buff[2] == 0xad);
TEST_ASSERT(buff[3] == 0xbe);
TEST_ASSERT(buff[4] == 0xef);
TEST_ASSERT(buff[5] == 22); // should be unchanged
std::fill(std::begin(buff), std::end(buff), 22);
provider2->read(6, buff, 2);
TEST_ASSERT(buff[0] == 0x00);
TEST_ASSERT(buff[1] == 0xff);
TEST_ASSERT(buff[2] == 22); // should be unchanged
std::fill(std::begin(buff), std::end(buff), 22);
provider2->read(7, buff, 2);
TEST_ASSERT(std::count(std::begin(buff), std::end(buff), 22) == std::size(buff)); // buff should be unchanged
TEST_SUCCESS();
};
TEST_SEQUENCE("TestProvider_write") {
std::vector<u8> buff(8);
hex::test::TestProvider provider(&buff);
hex::prv::Provider* provider2 = &provider;
u8 data[1024] = {0xde, 0xad, 0xbe, 0xef, 0x42, 0x2a, 0x00, 0xff};
std::fill(std::begin(buff), std::end(buff), 22);
provider2->write(1, data, 4);
provider2->applyPatches();
hex::log::error("asd {:#x}", buff[0]);
hex::log::error("asd {:#x}", buff[1]);
hex::log::error("asd {:#x}", buff[2]);
TEST_ASSERT(buff[0] == 22); // should be unchanged
TEST_ASSERT(buff[1] == 0xde);
TEST_ASSERT(buff[2] == 0xad);
TEST_ASSERT(buff[3] == 0xbe);
TEST_ASSERT(buff[4] == 0xef);
TEST_ASSERT(buff[5] == 22); // should be unchanged
std::fill(std::begin(buff), std::end(buff), 22);
provider2->write(0, data + 6, 2);
provider2->applyPatches();
TEST_ASSERT(buff[0] == 0x00);
TEST_ASSERT(buff[1] == 0xff);
TEST_ASSERT(buff[2] == 22); // should be unchanged
std::fill(std::begin(buff), std::end(buff), 22);
provider2->write(6, data, 2);
provider2->applyPatches();
TEST_ASSERT(buff[5] == 22); // should be unchanged
TEST_ASSERT(buff[6] == 0xde);
TEST_ASSERT(buff[7] == 0xad);
std::fill(std::begin(buff), std::end(buff), 22);
provider2->write(7, data, 2);
provider2->applyPatches();
TEST_ASSERT(std::count(std::begin(buff), std::end(buff), 22) == std::size(buff)); // buff should be unchanged
TEST_SUCCESS();
};