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import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
class BinarySearchTest {
@Test
void test1() {
int[] a = {1, 5, 8, 12, 13};
assertEquals(2, BinarySearch.binarySearch(a, 8));
}
@Test
void test2() {
int[] a = {1, 5, 8, 12, 13};
assertEquals(0, BinarySearch.binarySearch(a, 1));
}
@Test
void test3() {
int[] a = {1, 5, 8, 12, 13};
assertEquals(-1, BinarySearch.binarySearch(a, 23));
}
@Test
void test4() {
int[] a = {1, 5, 8, 12, 13};
assertEquals(-1, BinarySearch.binarySearch(a, 11));
}
}
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