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cpp-testing/gmock.py

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Google Mock mocks generator based on libclang

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Requirements

Download

git clone --recursive [email protected]:krzysztof-jusiak/gmock.git 

Usage

Usage: gmock.py [options] files... Options: -h, --help show this help message and exit -c FILE, --config=FILE config FILE (default='gmock.conf') -d DIR, --dir=DIR dir for generated mocks (default='.') -l LIMIT, --limit=LIMIT limit to interfaces within declaration (default='')

Example

./gmock.py file.hpp

will create mocks files in current directory for all interfaces

./gmock.py -c "gmock.conf" -d "test/mocks" -l "namespace::class" file1.hpp file2.hpp

will create directory 'test/mocks' and mocks files within this directory for all interfaces (contains at least one pure virtual function) which will be within 'namespace::class' declaration

./gmock.py -d "test/mocks" file1.hpp file2.hpp -- -D PROJECT -Iproject/include

'--' separates arguments between script and compiler

Integration with the build system

find project -iname "*.h" -or -iname "*.hpp"| xargs "project/externals/gmock.py" \ -c "project/conf/gmock.conf" \ -d "project/test/mocks" \ -l "Project" \ -- \ -D PROJECT \ -Iproject/include \

Features

  • it's reliable (based on clang compiler)
  • it's fast (tested on project ~200 kloc -> generation of mocs takes 3-5s on common laptop)
  • output file might be easily adopted to the project via configuration file
  • easy integration with the project build system -> generate mocks files for each interface from given files limited to the project (for example via project namespace)
  • able to generate cpp files with default constructors (to speed up compilation times)
  • generate pretty output (one mock per file)
  • mocking class templates
  • easy to extend (~300 lines of code)
  • handle c++ operators
virtualintoperator()(int, double) = 0;
virtualintoperator()(int arg0, double arg1){returncall_operator(arg0, arg1)} MOCK_METHOD2(call_operator, int(int, double));

Configuration file

#possible variables:# file: interface file name# dir: interface directory# guard: header guard# template: template parameters# template_interface: template interface class# interface: interface class# mock_methods: generated gmock methods# generated_dir: generated directory# mock_file_hpp: mock header file# mock_file_cpp: mock source filemock_file_hpp="%(interface)sMock.hpp"file_template_hpp="""\/* * file generated by gmock: %(mock_file_hpp)s */#ifndef %(guard)s#define %(guard)s#include <gmock/gmock.h>#include "%(dir)s/%(file)s"%(namespaces_begin)s%(template)sclass %(interface)sMock : public %(template_interface)s{public:%(mock_methods)s};%(namespaces_end)s#endif // %(guard)s"""mock_file_cpp=""file_template_cpp=""

Example of generated output

/* * file generated by gmock: I2Mock.hpp*/ #ifndef I2MOCK_HPP #defineI2MOCK_HPP #include<gmock/gmock.h> #include"I2.hpp"namespacen{classI2Mock : publicI2{public:MOCK_CONST_METHOD0(f0, void()); MOCK_METHOD1(f1, void(int)); MOCK_METHOD1(f2, void(double)); MOCK_METHOD2(f3, void(int, double)); MOCK_METHOD3(f4, void(int, double, const std::string &)); MOCK_METHOD1(f5, int(const std::string &)); MOCK_CONST_METHOD1(f6, boost::shared_ptr<int>(const boost::shared_ptr<int> &)); MOCK_CONST_METHOD0(f7, constint&()); MOCK_METHOD0(f8, boost::function<void(int)>()); MOCK_CONST_METHOD1(f9, boost::non_type<int,0>(const boost::non_type<int, 1> &)); MOCK_METHOD0(f10, constint*const ()); MOCK_METHOD0(f11, constvoid()); virtualintoperator()(){returnfunction_call_or_cast_operator()} MOCK_METHOD0(function_call_or_cast_operator, int())}} // namespace n #endif // I2MOCK_HPP
/* * file generated by gmock: TMock.hpp*/ #ifndef TMOCK_HPP #defineTMOCK_HPP #include<gmock/gmock.h> #include"T.hpp"namespacen{template<typename Elem> classTMock : publicT<Elem>{public:MOCK_CONST_METHOD0_T(GetSize, int()); MOCK_METHOD1_T(Push, void(const Elem &))}} // namespace n #endif// TMOCK_HPP

License

Distributed under the Boost Software License, Version 1.0.

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'Google Mock' mocks generator based on libclang

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