@Test
public void nullValueReturnsNullType() throws PseudoException {
ArgumentListEvaluator arguments = new ArgumentListEvaluator();
arguments.addArg(new NullEvaluator());
fnCallEval.setArgumentsList(arguments);
Type ret = fnCallEval.evaluate(scope);
assertEquals(
"The return type must be \"String\" regardless of input",
Type.STRING_TYPE,
ret.getPseudoType());
assertEquals("The return value must be \"Null\"", "Null", ret.getValue());
}
@Test
public void integerMultipliedByDoubleIsADouble() throws PseudoException {
MultEvaluator evaluator = new MultEvaluator(new IntegerEvaluator(0), new DoubleEvaluator(0.0));
Type ret = evaluator.evaluate(scope);
assertEquals("0*0.0 must be double 0.0.", 0.0, (Double) ret.getValue(), 0.01);
}
@Test
public void doubleMultipliedByIntegerIsADouble() throws PseudoException {
MultEvaluator evaluator = new MultEvaluator(new DoubleEvaluator(3.0), new IntegerEvaluator(3));
Type ret = evaluator.evaluate(scope);
assertEquals("3.0*3 must be double 9.0.", 9.0, (Double) ret.getValue(), 0.01);
}
@Test
public void integerMultipliedByIntegerIsAnInteger() throws PseudoException {
MultEvaluator evaluator = new MultEvaluator(new IntegerEvaluator(1), new IntegerEvaluator(1));
Type ret = evaluator.evaluate(scope);
assertEquals("1*1 must be integer 1.", 1, ret.getValue());
}