README.md

Dummy Library C++

This is a small library to generate random instances for use in unit tests. Extra types can be added by specialising T dummy() template (see user defined types).

Basic Types

auto randomInt = dummy<int>();
auto randomFloat = dummy<float>();
// random string with length of 10
auto randomString = dummy<std::string>(10);

User Defined Types

struct MyType {
    std::string name;
    int age;
};

template<>
MyType dummy(){
    return {
            .name = dummy<std::string>(8),
            .age = dummy<int>(0, 100)
    };
}

auto randomMyType = dummy<MyType>();

Vector of

// vector of 10 random ints
dummyVector<int>(10, dummy<int>);

// lambda passed in to generate the ints
dummyVector<int>(10, [](){
    // random int between 50 and 200
    return dummy<int>(50, 200);
});

// vector of user defined types
dummyVector<MyType>(15, dummy<MyType>);

---

Using CPP Dummy in projects

Example CMake

cmake_minimum_required(VERSION 3.17)
include(FetchContent)
project(my_project)
set(CMAKE_CXX_STANDARD 17)

FetchContent_Declare(
        cpp_dummy
        GIT_REPOSITORY https://github.com/jroddev/cpp-dummy
)
FetchContent_MakeAvailable(cpp_dummy)

add_executable(my_project main.cpp)
target_include_directories(my_project
        PRIVATE
        ${cpp_dummy_SOURCE_DIR}/include)
target_link_libraries(my_project cpp_dummy)

#include <iostream>
#include <string>
#include <dummy/dummy.h>

int main() {
    std::cout << dummy<std::string>(10) << std::endl;
    return 0;
}