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package model;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
public class ObservedDataTest {
private ObservedData<Integer> target;
private int callbackCount = 0;
private int callbackDirection = Integer.MIN_VALUE;
private int callbackIndex = Integer.MIN_VALUE;
private final Observer<Integer> obs = ((data, direction, index) -> {
callbackCount++;
callbackDirection = direction;
callbackIndex = index;
});
@BeforeEach
void setup() {
target = new ObservedData<>(0, obs);
callbackCount = 0;
callbackDirection = Integer.MIN_VALUE;
callbackIndex = Integer.MIN_VALUE;
}
@Test
void testConstructor() {
assertEquals(0, target.get());
assertNotNull(target.getAcceptor());
}
@Test
void testSet() {
target.set(114514);
assertEquals(114514, target.get());
assertEquals(1, callbackCount);
assertEquals(Observer.DIRECTION_CHANGE, callbackDirection);
assertEquals(Observer.INDEX_NOT_IN_LIST, callbackIndex);
}
}
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