Tests whether wxProcess::OnTerminate() is called when the process is killed

test-wxprocess-onterminate.cpp

#include <wx/wx.h>
#include <wx/process.h>

class MyProcess : public wxProcess
{
public:
    void OnTerminate(int pid, int status) override
    {
        wxLogMessage("OnTerminate(): pid = %d, status = %d", pid, status);
    }
}; 

class MyFrame : public wxFrame
{
public:
    MyFrame() : wxFrame(nullptr, wxID_ANY, "Test")
    {  
        wxLog::SetActiveTarget(new wxLogTextCtrl(new wxTextCtrl(this, wxID_ANY, wxEmptyString, 
            wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE | wxTE_READONLY | wxTE_RICH2)));                                         

        if ( wxExecute("cmd", wxEXEC_ASYNC | wxEXEC_MAKE_GROUP_LEADER, &m_process) )
        {
            wxLogMessage("Process started, pid = %d.", m_process.GetPid());
            m_timer.SetOwner(this);
            m_timer.StartOnce(3000);
            wxLogMessage("Going to kill the process in 3 seconds.");
        }

        Bind(wxEVT_TIMER, [this](wxTimerEvent&) 
            { 
              wxLogMessage("Attempting to kill the process..."); 
              if ( wxProcess::Kill(m_process.GetPid()) == wxKILL_OK )
                  wxLogMessage("Process killed."); 
              else
                  wxLogError("Could not kill the process."); 
            } );
    }   
private:
    MyProcess m_process;
    wxTimer   m_timer;
};

class MyApp : public wxApp
{
    bool OnInit() override
    {
        (new MyFrame)->Show();
        return true;
    }
}; wxIMPLEMENT_APP(MyApp);