CS代写 package comp1110.exam;

程序代写 CS代考 / Java代写代考

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 java.util.Random;

import static org.junit.Assert.assertTrue;

@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class Q3ArrayListAddTest {
public Timeout globalTimeout = Timeout.millis(500);

public void testAddOneSize() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
int s = l.size();
assertTrue(“Incorrect size. Expected 1, but got “+s, s == 1);

public void testAddOneValue() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
String v = l.get(0);
assertTrue(“Incorrect value returned after adding. Expected ‘a’, but got ‘”+v+”‘”, v.equals(“a”));

public void testAddTwoSize() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.add(“bb”);
int s = l.size();
assertTrue(“Incorrect size after adding. Expected 2, but got “+s, s == 2);

public void testAddTwoValue() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.add(“bb”);
String v = l.get(0);
assertTrue(“Incorrect value returned after adding. Expected ‘a’, but got ‘”+v+”‘”, v.equals(“a”));
v = l.get(1);
assertTrue(“Incorrect value returned after adding. Expected ‘bb’, but got ‘”+v+”‘”, v.equals(“bb”));

public void testAddThreeSize() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.add(“bb”);
l.add(“ccc”);
int s = l.size();
assertTrue(“Incorrect size after adding. Expected 3, but got “+s, s == 3);

public void testAddThreeValue() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.add(“bb”);
l.add(“ccc”);
String v = l.get(0);
assertTrue(“Incorrect value returned after adding. Expected ‘a’, but got ‘”+v+”‘”, v.equals(“a”));
v = l.get(1);
assertTrue(“Incorrect value returned after adding. Expected ‘bb’, but got ‘”+v+”‘”, v.equals(“bb”));
v = l.get(2);
assertTrue(“Incorrect value returned after adding. Expected ‘ccc’, but got ‘”+v+”‘”, v.equals(“ccc”));

public void testAddRandom() {
Random rand = new Random();
for (int i = 0; i < 10; i++) { Q3ArrayList l = new Q3ArrayList<>();
int len = 50 + rand.nextInt(300);
for (int j = 0; j < len; j++) { for (int j = 0; j < len; j++) { int v = l.get(j); assertTrue("Incorrect value returned after adding. Expected "+j+", but got '"+v+"'", v == j); public void testRemoveSimple() { Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
assertTrue(“Incorrect size after adding one element”, l.size() == 1);
assertTrue(“Incorrect toString returned after adding one element”, l.toString().equals(“a”));
l.remove(0);
int s = l.size();
assertTrue(“Incorrect size after removing only element, got “+s+”, but expected 0″, s == 0);

public void testRemoveLast() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.add(“bb”);
l.add(“ccc”);
assertTrue(“Incorrect size after adding three elements”, l.size() == 3);
assertTrue(“Incorrect toString returned after adding three elements”, l.toString().equals(“a bb ccc”));
l.remove(2);
int s = l.size();
assertTrue(“Incorrect size after removing last element. Got “+s+”, but expected 2″, l.size() == 2);
String ts = l.toString();
assertTrue(“Incorrect toString returned after removing last element, got ‘”+ts+”‘ but expected ‘a bb'”, ts.equals(“a bb”));

public void testRemoveFirst() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.add(“bb”);
l.add(“ccc”);
assertTrue(“Incorrect size after adding three elements”, l.size() == 3);
assertTrue(“Incorrect toString returned after adding three elements”, l.toString().equals(“a bb ccc”));
l.remove(0);
int s = l.size();
assertTrue(“Incorrect size after removing first element. Got “+s+”, but expected 2″, l.size() == 2);
String ts = l.toString();
assertTrue(“Incorrect toString returned after removing first element, got ‘”+ts+”‘ but expected ‘bb ccc'”, ts.equals(“bb ccc”));

public void testRemoveMiddle() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.add(“bb”);
l.add(“ccc”);
l.add(“ff”);
l.add(“g”);
assertTrue(“Incorrect size after adding five elements”, l.size() == 5);
assertTrue(“Incorrect toString returned after adding five elements”, l.toString().equals(“a bb ccc ff g”));
l.remove(2);
int s = l.size();
assertTrue(“Incorrect size after removing middle element. Got “+s+”, but expected 4″, l.size() == 4);
String ts = l.toString();
assertTrue(“Incorrect toString returned after removing middle element, got ‘”+ts+”‘ but expected ‘a bb ff g'”, ts.equals(“a bb ff g”));

@Test(expected = IndexOutOfBoundsException.class)
public void testRemoveEmpty() {
Q3ArrayList l = new Q3ArrayList<>();
l.remove(0);

@Test(expected = IndexOutOfBoundsException.class)
public void testRemoveNegative() {
Q3ArrayList l = new Q3ArrayList<>();
l.remove(-1);

@Test(expected = IndexOutOfBoundsException.class)
public void testRemoveOverflow() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.remove(1);

public void testReverseTwo() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.add(“bb”);
assertTrue(“Incorrect size after adding two elements”, l.size() == 2);
assertTrue(“Incorrect toString returned after adding two elements”, l.toString().equals(“a bb”));
l.reverse();
assertTrue(“Incorrect size after reversal”, l.size() == 2);
String r = l.toString();
assertTrue(“Incorrect toString returned after reversal, got ‘”+r+”‘, but expected ‘bb a'”, l.toString().equals(“bb a”));

public void testReverseThree() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.add(“bb”);
l.add(“ccc”);
assertTrue(“Incorrect size after adding three elements”, l.size() == 3);
assertTrue(“Incorrect toString returned after adding three elements”, l.toString().equals(“a bb ccc”));
l.reverse();
assertTrue(“Incorrect size after reversal”, l.size() == 3);
String r = l.toString();
assertTrue(“Incorrect toString returned after reversal, got ‘”+r+”‘, but expected ‘ccc bb a'”, l.toString().equals(“ccc bb a”));

public void testReverseFour() {
Q3ArrayList l = new Q3ArrayList<>();
l.add(“a”);
l.add(“bb”);
l.add(“ccc”);
l.add(“dddd”);
assertTrue(“Incorrect size after adding three elements”, l.size() == 4);
assertTrue(“Incorrect toString returned after adding four elements”, l.toString().equals(“a bb ccc dddd”));
l.reverse();
assertTrue(“Incorrect size after reversal”, l.size() == 4);
String r = l.toString();
assertTrue(“Incorrect toString returned after reversal, got ‘”+r+”‘, but expected ‘dddd ccc bb a'”, l.toString().equals(“dddd ccc bb a”));

public void testReverseRandomA() {
Random rand = new Random();
for (int i = 0; i < 10; i++) { Q3ArrayList l = new Q3ArrayList<>();
int len = 50 + rand.nextInt(300);
for (int j = 0; j < len; j++) { l.reverse(); for (int j = 0; j < len; j++) { int v = l.get(j); assertTrue("Incorrect value returned after adding. Expected "+(len-j-1)+", but got '"+v+"'", v == (len-j-1)); public void testReverseRandomB() { Random rand = new Random(); for (int i = 0; i < 20; i++) { Q3ArrayList l = new Q3ArrayList<>();
int len = 100 + rand.nextInt(300);
for (int j = 0; j < len; j++) { l.reverse(); for (int j = 0; j < len; j++) { int v = l.get(j); assertTrue("Incorrect value returned after adding. Expected "+(len-j-1)+", but got '"+v+"'", v == (len-j-1)); public void testReverseRandomC() { Random rand = new Random(); for (int i = 0; i < 30; i++) { Q3ArrayList l = new Q3ArrayList<>();
int len = 150 + rand.nextInt(300);
for (int j = 0; j < len; j++) { l.reverse(); for (int j = 0; j < len; j++) { int v = l.get(j); assertTrue("Incorrect value returned after adding. Expected "+(len-j-1)+", but got '"+v+"'", v == (len-j-1)); 程序代写 CS代考 加微信: powcoder QQ: 1823890830 Email: powcoder@163.com

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