how to create TestCase that can be parametrized?

[cppunit-devel mailing list]

Hi,

I am trying to create tests for database plugins for my library.

I have 3 plugins. Every one of them is tested using the same tests cases.

I want to create one main suite, that is responsible for plugin initialization
and creation of database schema for tests.

I want to add arbitrary number of test cases (derived from CppUnit::TestCase)
to the main suite and run it. Every test case needs to know handle to
database plugin and connection parameters, which are owned by main suite.

So far I created following structure:

//main test suite
class DbPluginTestSuite : public CppUnit::TestSuite {
   void init();
   Database* mDb;
   const char* mConnParams;
};

//base class for test cases
class Db_TestBase : public CppUnit::TestCase {
  public:
    void setParams(Database* pDb, const char* pConnParams);  
  protected:
   Database* mDb;
   const char* mConnParams;
};

//example test case
class Db_Basic : public Db_TestBase {
  CPPUNIT_TEST_SUITE()
      CPPUNIT_TEST(someTest)
  CPPUNIT_TEST_SUITE_END();
  public:
    void someTest() //uses mDb and mConnParams from parent class
};

I am trying to run tests like this:

CppUnit::TextTestRunner runner;
DbPluginTestSuite* mainSuite = new DbPluginTestSuite();
mainSuite->init();
Db_testBase* tc = new Db_Basic();
tc->setParams(mainSuite->mDb,mainSuite->mConnParams)
mainSuite ->addTest(tc); //BAD
runner.addTest(mainSuite);

Line marked BAD causes tc to be added to suite, but only first test is called.

I cannot use Db_Basic::suite(), because this method creates new uninitialized
object.

I think that I need to create TestSuite using existing TestCase pointer (tc)
and pass it to mainSuite->addTest().

Is there any way to do it?

Thanks for help,
Łukasz


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