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} @Test public void up_isNoOp() { CounterDown c = new CounterDown(); c.up(); assertTrue(c.value() == 0); } @Test public void up_bySpecificValueIsNoOp() {
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} @Test public void up_bySpecificValueIsNoOp() { CounterDown c = new CounterDown(); c.up(5); assertTrue(c.value() == 0); } @Test public void down_decrementsValue() {