comock - C++ Object MOCK library

Header only library for mocking C++ classes and interfaces. It is designed to be simple and easy to use, while providing powerful features for mocking and testing.

Branch	Status
Main

Thread Safety

This library is not thread-safe.

• Repo and created mocks are intended to be used from a single thread.
• Concurrent calls to mocks from multiple threads may cause race conditions or unexpected behavior.

Requirements

• C++17 or later
• boost.preprocessor

Test requirements

• CMake 3.10 or later
• doctest

Simple example

#include <comock/comock.h>
#include <iostream>

class Interface {
 public:
  virtual ~Interface() = default;

  virtual int foo(int a, std::string b) = 0;
};

COMOCK_DEFINE_BEGIN(Mock, Interface)
// COMOCK_METHOD(method-name, return type, argument types, specifiers)
   COMOCK_METHOD(foo, int, (int)(std::string), (override))
COMOCK_DEFINE_END

int main() {
  auto repo = comock::Repo{};
  auto const mock = repo.create<Mock>();

  repo.expectCall("foo", *mock, &Interface::foo, [](int a, std::string b) {
    std::cout << "foo called with " << a << " and " << b << "\n";
    return 0;
  });

  return mock->foo(42, "test");
}