Unit Tests

#include<string>#include<memory>#include<utility>structilogger {virtual~ilogger() { };virtualvoidlog(const std::string&) = 0; };structilogic {virtual~ilogic() { };virtualvoiddo_it() = 0; };classexample {public:example(const std::shared_ptr<ilogger>& logger          , std::unique_ptr<ilogic> logic          ,const std::string& text)        : logger_(logger)        , logic_(std::move(logic))        , text_(text)    { }intrun() {        logic_->do_it();        logger_->log(text_);return0;    }private:    std::shared_ptr<ilogger> logger_;    std::unique_ptr<ilogic> logic_;    std::string text_;};#include<mocks_injector.hpp>intmain() {namespacedi= boost::di;//1. create mocks injector and example classauto _ = di::make_injector<di::mocks_provider>();//2. set up expectationsEXPECT_CALL(_, ilogic::do_it);EXPECT_CALL(_, ilogger::log).With("hello world");//3. run tests    example sut{_, _,"hello world"};assert(0 == sut.run());}

Integration Tests

structlogic : ilogic {voiddo_it()override { } };classapp {public:app(std::shared_ptr<example> e)        : example_(e)    { }intrun() {return example_->run();    }private:    std::shared_ptr<example> example_;};#include<mocks_injector.hpp>intmain() {namespacedi= boost::di;//1. create mocks injector with dependenciesauto mi = di::make_injector<di::mocks_provider>(        di::bind<std::string>.to("hello world")      , di::bind<ilogic, logic>// inject real logic    );//2. set up expectationsEXPECT_CALL(mi, ilogger::log).With("hello world");//3. create example class and run itassert(!mi.create<app>().run());}

License