text: #pragma once
  
  #include <cppunit/TestFixture.h>
  #include <cppunit/Test.h>
  #include <vector>
  
  #include <UrchinPhysicsEngine.h>
  
  class IslandContainerTest : public CppUnit::TestFixture {
      public:
          static CppUnit::Test* suite();
  
          void cascadeMergeIslands();
          void mergeAllIslands();
          void createTwoSeparateIslands();
  };
  
  class TestBody : public urchin::IslandElement {
      public:
          bool isActive() const override {
              return true;
          }
  };
  