@Test
@SuppressWarnings("unchecked")
public void testCanCompareStrings() throws Exception {
String s = "This is a TEST";
context.put("property", s);
Eq instance = new Eq("property", "this is a test");
assertTrue(instance.isTruthValue(context));
}
@Test
@SuppressWarnings("unchecked")
public void testCanCompareNumbers() throws Exception {
double number = 123;
context.put("property", number);
Eq instance = new Eq("property", "123.00");
assertTrue(instance.isTruthValue(context));
instance = new Eq("property", "123.456");
assertFalse(instance.isTruthValue(context));
}
@Test
@SuppressWarnings("unchecked")
public void testCanCompareCalendars() throws ParseException, Exception {
Calendar calendar = Calendar.getInstance();
calendar.set(2009, 0, 15); // month value is 0-based
context.put("property", calendar);
Eq instance = new Eq("property", "15/01/2009");
assertTrue(instance.isTruthValue(context));
instance = new Eq("property", "01/01/2020");
assertFalse(instance.isTruthValue(context));
}
@Test
@SuppressWarnings("unchecked")
public void testCanCompareDates() throws ParseException, Exception {
DateFormat df = new SimpleDateFormat("dd/MM/yyyy'T'HH:mm:ssZ");
Date date = df.parse("15/01/2009T00:00:00-0000");
context.put("property", date);
Eq instance = new Eq("property", "15/01/2009");
assertTrue(instance.isTruthValue(context));
instance = new Eq("property", "01/01/2020");
assertFalse(instance.isTruthValue(context));
}
@Override
public Boolean visit(Eq ast) {
boolean checkLhs = ast.getLhs().accept(this);
boolean checkRhs = ast.getRhs().accept(this);
if (!(checkLhs && checkRhs)) return false;
Type lhsType = ast.getLhs().typeOf(env);
Type rhsType = ast.getRhs().typeOf(env);
if (!lhsType.isCompatibleTo(rhsType)) {
addToErrorList(
ast,
"the operator == can not be applied to instances of type "
+ lhsType.getClass()
+ " and type "
+ rhsType.getClass());
return false;
}
return true;
}
@Test
@SuppressWarnings("unchecked")
public void testCanCompareBooleans() throws Exception {
boolean b = true;
context.put("property", b);
Eq instance = new Eq("property", "true");
assertTrue(instance.isTruthValue(context));
instance = new Eq("property", "false");
assertFalse(instance.isTruthValue(context));
b = false;
context.put("property", b);
instance = new Eq("property", "false");
assertTrue(instance.isTruthValue(context));
instance = new Eq("property", "true");
assertFalse(instance.isTruthValue(context));
}
@Override
public boolean is(T obj) {
return eq.holds(sample, obj);
}
