@Test
public void divideIntegers() {
Number actual = evaluate(a._div(b), intPoint(23, 2));
assertThat(actual.intValue(), equalTo(11)); // Integer arithmetic drops the 0.5
}
@Test
public void negIntegers() {
Number actual = evaluate(a._neg(), intPoint(23, 0));
assertThat(actual.intValue(), equalTo(-23));
}
@Test
public void multiplyIntegers() {
Number actual = evaluate(a._mul(b), intPoint(6, 7));
assertThat(actual.intValue(), equalTo(42));
}
@Test
public void addIntegers() {
Number actual = evaluate(a._plus(b), intPoint(18, 5));
assertThat(actual.intValue(), equalTo(23));
}
@Test
public void subtractIntegers() {
Number actual = evaluate(a._minus(b), intPoint(23, 65));
assertThat(actual.intValue(), equalTo(-42));
}
@Test
public void integerPolynomial() {
// a**3 + a*b + 7
Number actual = evaluate(a._mul(a)._mul(a)._plus(a._mul(b))._plus(7), intPoint(3, -8));
assertThat(actual.intValue(), equalTo(10));
}
@Test
public void andIntegers() {
Number actual = evaluate(a._and(b), intPoint(17, 5));
assertThat(actual.intValue(), equalTo(1));
}
@Test
public void shiftIntegersLogicallyRight() {
Number actual = evaluate(a._shiftUR(b), intPoint(-1, 1));
assertThat(actual.intValue(), equalTo(Integer.MAX_VALUE));
}
@Test
public void shiftIntegersRight() {
Number actual = evaluate(a._shiftR(b), intPoint(-1, 5));
assertThat(actual.intValue(), equalTo(-1));
}
@Test
public void shiftIntegersLeft() {
Number actual = evaluate(a._shiftL(b), intPoint(8, 2));
assertThat(actual.intValue(), equalTo(32));
}