source: util/src/unittests/AverageColumnsUnitTest.cpp@ 37ec1b

/*
 * AveragerUnitTest.cpp
 *
 *  Created on: Oct 29, 2009
 *      Author: heber
 */

using namespace std;

#include <cppunit/CompilerOutputter.h>
#include <cppunit/extensions/TestFactoryRegistry.h>
#include <cppunit/ui/text/TestRunner.h>

#include <math.h>

#include "../average.hpp"
#include "AverageColumnsUnitTest.hpp"

// Registers the fixture into the 'registry'
CPPUNIT_TEST_SUITE_REGISTRATION( AverageColumnsTest );


void AverageColumnsTest::setUp()
{
  // empty stream and map
  input.clear();
  Columns.clear();
  Results = NULL;
};


void AverageColumnsTest::tearDown()
{
  if (Results != NULL)
    delete Results;
};

/** UnitTest for calculations in AverageColumns().
 */
void AverageColumnsTest::SimpleCalculationsTest()
{
  input.str("1\n1\n1\n");
  Columns.insert(0);
  Results = AverageColumns(input, Columns);
  CPPUNIT_ASSERT ( Results->begin() != Results->end() );
  const double mean = (*Results->begin()).second.first;
  const double dev = (*Results->begin()).second.second;
  CPPUNIT_ASSERT_EQUAL( 1., mean );
  CPPUNIT_ASSERT_EQUAL( 0., dev );
}

/** UnitTest for some real calculations in AverageColumns().
 */
void AverageColumnsTest::CalculationsTest()
{
  MeanErrorMap::iterator Runner;
  input.clear();
  input.str("1.\t1.\n2.\t3.\n3.\t5.\n");
  Columns.insert(0);
  Columns.insert(1);
  Results = AverageColumns(input, Columns);
  Runner = Results->begin();
  CPPUNIT_ASSERT ( Runner != Results->end() );
  CPPUNIT_ASSERT_EQUAL( 2., (*Runner).second.first );
  CPPUNIT_ASSERT_EQUAL( sqrt(2)/3., (*Runner).second.second );
  Runner++;
  CPPUNIT_ASSERT ( Runner != Results->end() );
  CPPUNIT_ASSERT_EQUAL( 3., (*Runner).second.first );
  CPPUNIT_ASSERT_EQUAL( sqrt(8.)/3., (*Runner).second.second );
}

/** UnitTest for too few columns in AverageColumns().
 */
void AverageColumnsTest::MissingColumnsTest()
{
  // fill stream
  input.str("1\n1\n1\n");
  Columns.insert(1);
  Results = AverageColumns(input, Columns);
  CPPUNIT_ASSERT ( (Results->begin() == Results->end()) && "Results should be empty, as there is no column 1." );
};

/** UnitTest for too few columns in AverageColumns().
 */
void AverageColumnsTest::NoRowsTest()
{
  // fill stream
  input.str("");
  Columns.insert(0);
  Results = AverageColumns(input, Columns);
  CPPUNIT_ASSERT ( (Results->begin() == Results->end()) && "Results should be empty, as there is no row." );
};


/********************************************** Main routine **************************************/

int main(int argc, char **argv)
{
  // Get the top level suite from the registry
  CppUnit::Test *suite = CppUnit::TestFactoryRegistry::getRegistry().makeTest();

  // Adds the test to the list of test to run
  CppUnit::TextUi::TestRunner runner;
  runner.addTest( suite );

  // Change the default outputter to a compiler error format outputter
  runner.setOutputter( new CppUnit::CompilerOutputter( &runner.result(),
                                                       std::cerr ) );
  // Run the tests.
  bool wasSucessful = runner.run();

  // Return error code 1 if the one of test failed.
  return wasSucessful ? 0 : 1;
};