gMock for Dummies - How to Getting Started? (Visual-Studio-2019)

Question

I tried to create a very simple Mock Class as per Getting Started of gMock for Dummies.

1. I created a new blank project in VS Studio 2019

2. I ran the package manager Install-Package gmock -Version 1.8.1 as per this answer Configure GoogleMock

3. The packages.config file that got created

   <?xml version="1.0" encoding="utf-8"?>`
   <packages>
       <package id="gmock" version="1.8.1" targetFramework="native" />
   </packages>
   

4. I created 1 file Source.cpp

   class Turtle {
       virtual void PenUp();
   };
   
   void Turtle::PenUp() {
       return;
   }
   
   #include "gmock/gmock.h"
   
   class MockTurtle : public Turtle {
   public:
   
       MOCK_METHOD(void, PenUp, (), (override)); // not working see Pic1
   
       MOCK_METHOD0(PenUp, void()); // not working see Pic2
   
   };
   

The 2nd example tries a syntax like this answer How to mock method

Pic1:

Pic2:

Answer 1

Here is how to do it, the Windows way. You need to install the Windows cmake here https://cmake.org/download/. Because the cmake bundled in Cygwin is NOT compatible to Visual Studio, you need the cmake.exe for Windows and then run it from DOS terminal. I have cygwin for other things, but for all things Visual Studio, it needs to be done the Window's way in the DOS terminal. I am using Visual Studio 2019.

git clone https://github.com/google/googletest.git

Then open DOS terminal, granting PATH can find cmake.exe already. Goto where you cloned the googletest repo.

cd googletest
mkdir c:\opt
mkdir build
cd build
cmake -G "Visual Studio 16 2019" -DCMAKE_INSTALL_PREFIX=c:\\opt ..

It shall generate the usual googletest-distribution.sln Visual Studio solution file. It is now time to use the mouse. Double-click on this solution file, and it shall launch Visual Studio IDE. Build ALL_BUILD and INSTALL. The ALL_BUILD will produce *.lib files and the INSTALL will copy these files to c:\opt location. After this, the gtest/gmock lib and headers shall be located in C:\opt\ folder.

Answer 2

I was able to compile my solution now:

1. I created a new blank project in VS Studio 2019
2. I cloned the google repo googletest

3. In the project properties I added C/C++ add. include directories

   path\to\repo\googlemock
   path\to\repo\googlemock\include
   path\to\repo\googlemock\include\gmock
   path\to\repo\googlemock\include\gmock\internal
   path\to\repo\googletest
   path\to\repo\googletest\include
   path\to\repo\googletest\include\gtest
   path\to\repo\googletest\include\gtest\internal
   

4. I created 1 file Source.cpp

   #include "gmock/gmock.h"
   #include "gtest/gtest.h"
   
   #include "src/gmock-cardinalities.cc"
   #include "src/gmock-internal-utils.cc"
   #include "src/gmock-matchers.cc"
   #include "src/gmock-spec-builders.cc"
   #include "src/gmock.cc"
   
   #include "src/gtest.cc"
   #include "src/gtest-death-test.cc"
   #include "src/gtest-filepath.cc"
   #include "src/gtest-port.cc"
   #include "src/gtest-printers.cc"
   #include "src/gtest-test-part.cc"
   #include "src/gtest-typed-test.cc"
   
   class Turtle {
   public:
       virtual ~Turtle() {}
       virtual void PenUp() = 0;
   };
   
   class MockTurtle : public Turtle {
   public:
   
       //MOCK_METHOD0(PenUp, void()); // working =)
       MOCK_METHOD(void, PenUp, (), (override)); // working =)
   
   };
   
   int main(int, const char* []) {
       return 0;
   }
   

Idea came from this blog post