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));
	}

}