cpp_mock is a simple to use and install C++ library to allow the mocking of
classes. It overrides virtual methods to allow them to be easily setup and,
optionally, verified in a unit test.
The library is a small header only file - simple copy include/cpp_mock.h to
your include path and then you're ready to build!
It's designed to work with any C++ 11 compiler, regularly tested with G++ and VS C++. It should be warning free (with the exception of pedantic) - if you spot anything then please raise an issue.
Here's a basic example of how you can use the library:
#include <cpp_mock.h>
class MockCalculator : public Calculator
{
public:
MockMethod(int, Add, (int, int))
};
void UnitTest()
{
// Arrange our mock
MockCalculator calculator;
When(calculator.Add).Return(5);
// Act on it
int result = calculator.Add(1, 2);
// Assert we got the expected result
assert(result == 5);
}You can also verify a method was called without having to set it up:
class MockService : public MyService
{
public:
MockMethod(void, SaveCounter, (int))
};
void UnitTest()
{
// Nothing to arrange this time
MockService service;
// Act on it
objectThatUsesService.ExportCounter(service);
// Assert it was actually used - this will throw an exception if the method
// was not called
Verify(service.SaveCounter);
}Here is some more documentation on the basic constructs:
This project is licensed under the MIT license.