etl/test/test_singleton.cpp

/******************************************************************************
The MIT License(MIT)

Embedded Template Library.

Copyright(c) 2014 jwellbelove

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#include <UnitTest++/UnitTest++.h>

#include "../singleton.h"

class Test_Singleton : public etl::singleton<Test_Singleton>
{
public:

  Test_Singleton()
    : i(0)
  {}

  void Increment()
  {
    ++i;
  }
  
  int i;
};


namespace
{
  SUITE(test_singleton)
  {
    //*************************************************************************
    TEST(test1)
    {
      Test_Singleton& ts = Test_Singleton::instance();

      CHECK_EQUAL(0, ts.i);

      ts.Increment();

      CHECK_EQUAL(1, ts.i);

      Test_Singleton* pts = &Test_Singleton::instance();

      CHECK_EQUAL(1, ts.i);
      CHECK_EQUAL(1, pts->i);

      pts->Increment();

      CHECK_EQUAL(2, ts.i);
      CHECK_EQUAL(2, pts->i);
    }
  }
}