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package bjc.esodata;
import static org.junit.Assert.*;
import java.util.*;
import org.junit.*;
@SuppressWarnings("javadoc")
public class MinMaxListTest {
private final static Comparator<Integer> intComparator = (lhs, rhs) -> lhs - rhs;;
@Test
public void minMaxListInitializesMinMax() {
MinMaxList<Integer> list = new MinMaxList<>(intComparator,
1, 2, 3, 4, 5);
assertEquals("List contains 5 elements", 5, list.size());
assertEquals("Minimum is 1", 1, (int)list.minimum());
assertEquals("Maximum is 5", 5, (int)list.maximum());
}
@Test
public void minMaxListAddUpdatesMinMax() {
MinMaxList<Integer> list = new MinMaxList<>(intComparator,
2, 3, 4);
assertEquals("Minimum is 2", 2, (int)list.minimum());
assertEquals("Maximum is 4", 4, (int)list.maximum());
list.add(1);
list.add(5);
assertEquals("Minimum is 1", 1, (int)list.minimum());
assertEquals("Maximum is 5", 5, (int)list.maximum());
}
public void minMaxListRemoveUpdatesMinMax() {
MinMaxList<Integer> list = new MinMaxList<>(intComparator,
1, 2, 3, 4, 5);
assertEquals("Minimum is 1", 1, (int)list.minimum());
assertEquals("Maximum is 5", 5, (int)list.maximum());
list.remove((Integer)1);
list.remove((Integer)5);
assertEquals("Minimum is 2", 2, (int)list.minimum());
assertEquals("Maximum is 4", 4, (int)list.maximum());
}
}
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