@Test
public void run() {
IntegerSum sum = new IntegerSum(0);
Interval.oneTo(5).run(() -> sum.add(1));
Assert.assertEquals(5, sum.getIntSum());
IntegerSum sum2 = new IntegerSum(0);
Interval.fromTo(5, 1).run(() -> sum2.add(1));
Assert.assertEquals(5, sum2.getIntSum());
}
@Test
public void forEachWith() {
IntegerSum sum = new IntegerSum(0);
Interval.oneTo(5)
.forEachWith((Integer each, Integer parameter) -> sum.add(each + parameter), 0);
Assert.assertEquals(15, sum.getIntSum());
IntegerSum sum2 = new IntegerSum(0);
Interval.fromTo(5, 1)
.forEachWith((Integer each, Integer parameter) -> sum2.add(each + parameter), 0);
Assert.assertEquals(15, sum2.getIntSum());
}
@Test
public void forEachWithIndex() {
IntegerSum sum = new IntegerSum(0);
Interval.oneTo(5)
.forEachWithIndex((ObjectIntProcedure<Integer>) (each, index) -> sum.add(each + index));
Assert.assertEquals(25, sum.getIntSum());
IntegerSum zeroSum = new IntegerSum(0);
Interval.fromTo(0, -4)
.forEachWithIndex((ObjectIntProcedure<Integer>) (each, index) -> zeroSum.add(each + index));
Assert.assertEquals(0, zeroSum.getIntSum());
Verify.assertThrows(
IndexOutOfBoundsException.class, () -> Interval.zeroTo(10).forEachWithIndex(null, -1, 10));
}