@Test
public void testDown()
{

    CGIARProvider instance = new CGIARProvider();
    assertEquals(50, instance.down(52.5));
    assertEquals(0, instance.down(0.1));
    assertEquals(0, instance.down(0.01));
    assertEquals(-5, instance.down(-0.01));
    assertEquals(-5, instance.down(-2));
    assertEquals(-10, instance.down(-5.1));
    assertEquals(50, instance.down(50));
    assertEquals(45, instance.down(49));
}