cs201ArrayListActivity/TestStringArrayList.java at master · annarafferty/cs201ArrayListActivity · GitHub

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importstaticorg.junit.Assert.assertEquals;
importorg.junit.Test;
importjava.util.ArrayList;
importjava.util.Arrays;
publicclassTestStringArrayList {

/**
 * Test edge cases for get.
 */
@Test(expected = IndexOutOfBoundsException.class)
publicvoidtestGetOutOfBounds1() {
StringArrayListtester = newStringArrayList();
tester.get(-3);
 }

/**
 * Test edge cases for get.
 */
@Test(expected = IndexOutOfBoundsException.class)
publicvoidtestGetOutOfBounds2() {
StringArrayListtester = newStringArrayList();
tester.get(3);
 }

/**
 * Test that get works for item 0 when set with single item constructor.
 */
@Test
publicvoidtestGetSingleItemConstructor() {
StringArrayListtester = newStringArrayList("Anna");
Stringitem0 = tester.get(0);
assertEquals("Testing get for 0th index and single item constructor.\n", "Anna", item0);
 }

/**
 * Test edge cases for set.
 */
@Test(expected = IndexOutOfBoundsException.class)
publicvoidtestSetOutOfBounds1() {
StringArrayListtester = newStringArrayList();
tester.set(-3, "Anna");
 }

/**
 * Test edge cases for set.
 */
@Test(expected = IndexOutOfBoundsException.class)
publicvoidtestSetOutOfBounds2() {
StringArrayListtester = newStringArrayList();
tester.set(3, "Anna");
 }

/**
 * Test that set (and get) work for item 0 when set with single item constructor.
 */
@Test
publicvoidtestSetSingleItemConstructor() {
StringArrayListtester = newStringArrayList("Anna");
StringoldItem = tester.set(0, "Eris");
assertEquals("Testing set for 0th index and single item constructor.\n", "Anna", oldItem);

assertEquals("Testing set and get for 0th index and single item constructor.\n", "Eris", tester.get(0));

 }

/**
 * Test that adding at the end works when no resizing of array is needed.
 */
@Test
publicvoidtestAddAtEndNoResize() {
StringArrayListtester = newStringArrayList();
java.util.List<String> stringList = newArrayList<String>();
//Add the numbers 0-6 to the list in string form
//and check array after each one.
for (inti = 0; i < 7; i++) {
tester.add(Integer.toString(i));
stringList.add(Integer.toString(i));
assertEquals("Checking add at end. (Look at how you change numItems if your output doesn't match the expected one in length.)\n", stringList.toString(), Arrays.toString(tester.toArray()));
 }
 }

/**
 * Test that adding at the beginning works when no resizing of array is needed.
 */
@Test
publicvoidtestAddAtIndexNoResize() {
StringArrayListtester = newStringArrayList();
java.util.List<String> stringList = newArrayList<String>();

//Add the numbers 0-6 to the list in string form
//and check array after each one.
for (inti = 0; i < 7; i++) {
tester.add(0, Integer.toString(i));
stringList.add(0, Integer.toString(i));
assertEquals("Checking add at index. (Look at how you change numItems if your output doesn't match the expected one in length.)\n", stringList.toString(), Arrays.toString(tester.toArray()));
 }
 }

/**
 * Test that adding at the end works when resizing of array is needed.
 */
@Test
publicvoidtestAddAtEndResize() {
StringArrayListtester = newStringArrayList();
java.util.List<String> stringList = newArrayList<String>();

//Add the numbers 0-24 to the list in string form
//and check array after each one.
for (inti = 0; i < 25; i++) {
tester.add(Integer.toString(i));
stringList.add(Integer.toString(i));
assertEquals("Checking add at end. (Look at how you change numItems if your output doesn't match the expected one in length.)\n", stringList.toString(), Arrays.toString(tester.toArray()));
 }
 }

/**
 * Test that getting works for a variety of spots in the array, as well as
 * adding at an index and resizing.
 */
@Test
publicvoidtestAddAtIndexResize() {
StringArrayListtester = newStringArrayList();
java.util.List<String> stringList = newArrayList<String>();

//Add the numbers 0-24 to the list in string form
//and check array after each one.
for (inti = 0; i < 25; i++) {
tester.add(0, Integer.toString(i));
stringList.add(0, Integer.toString(i));
assertEquals("Checking add at index. (Look at how you change numItems if your output doesn't match the expected one in length.)\n", stringList.toString(), Arrays.toString(tester.toArray()));
for(intj = 0; j < stringList.size(); j++) {
assertEquals("Checking get at many spots in array, after adding.", stringList.get(j), tester.get(j));
 }
 }
 }
}