@Test public void testMutate(){ MutableFloat num = MutableFloat.of(twenty); Stream.of(1,2,3,4).map(i->i*10).peek(i-> num.mutate(n->new Float((float)(n+i)))).forEach(System.out::println); assertThat(num.getAsFloat(),is((float)120)); } @Test
@Test public void inClosure(){ MutableFloat myInt = new MutableFloat(zero); Function<Integer,Function<Integer,MutableFloat>> fn = ((Integer i)-> (Integer j)-> myInt.set(new Float((float)(i*j)))); fn.apply(10).apply(20); assertThat(myInt.getAsFloat(), is((float)200)); } @Test
@Test public void inClosure2(){ MutableFloat myInt = new MutableFloat(zero); BiFunction<Float,Float,MutableFloat> fn = (i,j)-> myInt.set(new Float((float)(i*j))); fn.apply(ten,twenty); assertThat(myInt.getAsFloat(), is((float)200)); }
@Test public void testClosedVar() { assertThat(new MutableFloat(ten).getAsFloat(),equalTo(ten)); } @Test
@Test public void testSet() { assertThat(new MutableFloat().set(twenty).getAsFloat(),is(twenty)); }