package org.pentaho.reporting.libraries.formula;
import junit.framework.TestCase;
import org.pentaho.reporting.libraries.formula.common.TestFormulaContext;
/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public abstract class FormulaTestBase extends TestCase
{
private FormulaContext context;
protected FormulaTestBase()
{
}
protected FormulaTestBase(final String s)
{
super(s);
}
protected void setUp() throws Exception
{
context = new TestFormulaContext(TestFormulaContext.testCaseDataset);
LibFormulaBoot.getInstance().start();
}
protected abstract Object[][] createDataTest();
public FormulaContext getContext()
{
return context;
}
protected void runDefaultTest() throws Exception
{
final Object[][] dataTest = createDataTest();
runTest(dataTest);
}
protected void runTest(final Object[][] dataTest) throws Exception
{
for (int i = 0; i < dataTest.length; i++)
{
final Object[] objects = dataTest[i];
performTest((String) objects[0], objects[1]);
}
}
protected void performTest(final String formul, final Object result) throws Exception
{
performTest(formul, result, this.context);
}
protected void performTest(final String formul, final Object result, final FormulaContext context) throws Exception
{
final Formula formula = new Formula(formul);
formula.initialize(context);
final Object eval = formula.evaluate();
if (result instanceof Comparable && eval instanceof Comparable)
{
final Comparable n = (Comparable) result;
try
{
assertTrue("Failure numeric comparison on " + formul + ": " + result + " vs. " + eval, n.compareTo(eval) == 0);
}
catch (final ClassCastException cce)
{
fail("Failure numeric comparison on " + formul + ": " + result + " vs. " + eval);
}
}
else
{
assertEquals("Failure on " + formul, result, eval);
}
}
}