CS代考 package comp1110.exam;

package comp1110.exam;

import org.junit.FixMethodOrder;
import org.junit.Rule;

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import org.junit.Test;
import org.junit.rules.Timeout;
import org.junit.runners.MethodSorters;

import static org.junit.Assert.assertTrue;

@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class Q1OxTest {
public Timeout globalTimeout = Timeout.millis(1000);

public void testEmpty() {
test(“”, 0);

public void testOne() {
test(“a”, -1);
test(“x”, 1);
test(“o”, -1);

public void testTwo() {
test(“xx”, 2);
test(“xo”, -1);
test(“oo”, -1);
test(“aa”, -1);
test(“ab”, -1);

public void testThree() {
test(“xxx”, 3);
test(“xxo”, 2);
test(“xxs”, -1);
test(“xoo”, -1);
test(“xox”, -1);
test(“oox”, -1);
test(“oxo”, -1);
test(“oxx”, -1);

public void testFive() {
test(“xxxxx”, 5);
test(“xxxxo”, 4);
test(“xxoxo”, 3);
test(“xxxoo”, 3);
test(“xoxxx”, -1);

private void test(String s, int e) {
int r = Q1Ox.ox(s);
assertTrue(“For string \””+s+”\”, expected ‘”+e+”‘ but got ‘”+r+”‘”, e == r);

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