@Test
public void getKiePMMLRegressionModelSourcesMap() throws IOException {

    Map<String, String> retrieved = KiePMMLRegressionModelFactory.getKiePMMLRegressionModelSourcesMap(dataDictionary, transformationDictionary, regressionModel, PACKAGE_NAME);
    assertNotNull(retrieved);
    int expectedSize = regressionTables.size() + 2; // One for classification and one for the whole model
    assertEquals(expectedSize, retrieved.size());
}