What tools or libraries for automated testing have you used in your practice?

In the practice of automated testing in C/C++, I used the following tools and libraries:

• Google Test (gtest) — a popular framework for writing unit tests, supporting various types of checks and easy to integrate.
• CppUnit — a library inspired by JUnit, for organizing and running tests.
• Catch2 — a modern and easy-to-use testing framework with minimal setup.

Example of a simple test using Google Test:

#include <gtest/gtest.h>

int Sum(int a, int b) {
    return a + b;
}

TEST(SumTest, PositiveNumbers) {
    EXPECT_EQ(Sum(2, 3), 5);
}

int main(int argc, char **argv) {
    ::testing::InitGoogleTest(&argc, argv);
    return RUN_ALL_TESTS();
}

These tools help automate code correctness checks and speed up the development process.