@Test
	public void testWeightLimits() {
		Metabolism m = new Metabolism();
		try {
			m.setWeight(0);
			fail("An IncoherentWeightException should have been thrown.");
		} catch(IncoherentWeightException e) {}
		try {
			m.setWeight(-12.3);
			fail("An IncoherentWeightException should have been thrown.");
		} catch(IncoherentWeightException e) {}
		try {
			m.setWeight(501);
			fail("An IncoherentWeightException should have been thrown.");
		} catch(IncoherentWeightException e) {}
		try {
			m.setWeight(60);
		} catch(IncoherentWeightException e) {
			fail("An IncoherentWeightException has been thrown.");
		}
	}