public void testStaticOps() {
Tuple source1, source2, result;
source1 = new Tuple(1.0f, 2.0f);
source2 = new Tuple(2.0f, 4.0f);
result = Tuple.plus(source1, source2);
assertEquals(3.0f, result.x);
assertEquals(6.0f, result.y);
assertNotSame(result, source1);
assertNotSame(result, source2);
result = Tuple.minus(source1, source2);
assertEquals(-1.0f, result.x);
assertEquals(-2.0f, result.y);
assertNotSame(result, source1);
assertNotSame(result, source2);
result = Tuple.multiply(source1, source2);
assertEquals(2.0f, result.x);
assertEquals(8.0f, result.y);
assertNotSame(result, source1);
assertNotSame(result, source2);
result = Tuple.divide(source1, source2);
assertEquals(0.5f, result.x);
assertEquals(0.5f, result.y);
assertNotSame(result, source1);
assertNotSame(result, source2);
}
public void testTupleOps() {
Tuple source1, source2, result;
source1 = new Tuple(1.0f, 2.0f);
source2 = new Tuple(2.0f, 4.0f);
result = new Tuple();
result.set(source1);
result.plus(source2);
assertEquals(3.0f, result.x);
assertEquals(6.0f, result.y);
result.set(source1);
result.minus(source2);
assertEquals(-1.0f, result.x);
assertEquals(-2.0f, result.y);
result.set(source1);
result.multiply(source2);
assertEquals(2.0f, result.x);
assertEquals(8.0f, result.y);
result.set(source1);
result.divide(source2);
assertEquals(0.5f, result.x);
assertEquals(0.5f, result.y);
}
public void testScalarOps() {
Tuple source1, result;
source1 = new Tuple(1.0f, 2.0f);
result = new Tuple();
result.set(source1);
result.plus(2.0f);
assertEquals(3.0f, result.x);
assertEquals(4.0f, result.y);
result.set(source1);
result.minus(2.0f);
assertEquals(-1.0f, result.x);
assertEquals(0.0f, result.y);
result.set(source1);
result.multiply(2.0f);
assertEquals(2.0f, result.x);
assertEquals(4.0f, result.y);
result.set(source1);
result.divide(2.0f);
assertEquals(0.5f, result.x);
assertEquals(1.0f, result.y);
}