--- jsr166/src/test/tck/VectorTest.java 2016/11/14 23:52:22 1.2 +++ jsr166/src/test/tck/VectorTest.java 2021/01/27 02:55:18 1.13 @@ -5,12 +5,14 @@ * http://creativecommons.org/publicdomain/zero/1.0/ */ -import java.util.Vector; +import java.util.Arrays; import java.util.Collection; +import java.util.Collections; import java.util.List; +import java.util.Vector; +import java.util.concurrent.ThreadLocalRandom; import junit.framework.Test; -import junit.framework.TestSuite; public class VectorTest extends JSR166TestCase { public static void main(String[] args) { @@ -21,19 +23,437 @@ public class VectorTest extends JSR166Te class Implementation implements CollectionImplementation { public Class klazz() { return Vector.class; } public List emptyCollection() { return new Vector(); } - public Object makeElement(int i) { return i; } + public Object makeElement(int i) { return JSR166TestCase.itemFor(i); } public boolean isConcurrent() { return false; } public boolean permitsNulls() { return true; } } class SubListImplementation extends Implementation { + @SuppressWarnings("unchecked") public List emptyCollection() { - return super.emptyCollection().subList(0, 0); + List list = super.emptyCollection(); + ThreadLocalRandom rnd = ThreadLocalRandom.current(); + if (rnd.nextBoolean()) + list.add(makeElement(rnd.nextInt())); + int i = rnd.nextInt(list.size() + 1); + return list.subList(i, i); } } return newTestSuite( - // VectorTest.class, + VectorTest.class, CollectionTest.testSuite(new Implementation()), CollectionTest.testSuite(new SubListImplementation())); } + static Vector populatedList(int n) { + Vector list = new Vector<>(); + assertTrue(list.isEmpty()); + for (int i = 0; i < n; i++) + mustAdd(list, i); + mustEqual(n <= 0, list.isEmpty()); + mustEqual(n, list.size()); + return list; + } + + /** + * addAll adds each element from the given collection, including duplicates + */ + public void testAddAll() { + List list = populatedList(3); + assertTrue(list.addAll(Arrays.asList(three, four, five))); + mustEqual(6, list.size()); + assertTrue(list.addAll(Arrays.asList(three, four, five))); + mustEqual(9, list.size()); + } + + /** + * clear removes all elements from the list + */ + public void testClear() { + List list = populatedList(SIZE); + list.clear(); + mustEqual(0, list.size()); + } + + /** + * Cloned list is equal + */ + public void testClone() { + Vector l1 = populatedList(SIZE); + @SuppressWarnings("unchecked") + Vector l2 = (Vector)(l1.clone()); + mustEqual(l1, l2); + l1.clear(); + assertFalse(l1.equals(l2)); + } + + /** + * contains is true for added elements + */ + public void testContains() { + List list = populatedList(3); + mustContain(list, one); + mustNotContain(list, five); + } + + /** + * adding at an index places it in the indicated index + */ + public void testAddIndex() { + List list = populatedList(3); + list.add(0, minusOne); + mustEqual(4, list.size()); + mustEqual(minusOne, list.get(0)); + mustEqual(zero, list.get(1)); + + list.add(2, minusTwo); + mustEqual(5, list.size()); + mustEqual(minusTwo, list.get(2)); + mustEqual(two, list.get(4)); + } + + /** + * lists with same elements are equal and have same hashCode + */ + public void testEquals() { + List a = populatedList(3); + List b = populatedList(3); + assertTrue(a.equals(b)); + assertTrue(b.equals(a)); + assertTrue(a.containsAll(b)); + assertTrue(b.containsAll(a)); + mustEqual(a.hashCode(), b.hashCode()); + a.add(minusOne); + assertFalse(a.equals(b)); + assertFalse(b.equals(a)); + assertTrue(a.containsAll(b)); + assertFalse(b.containsAll(a)); + b.add(minusOne); + assertTrue(a.equals(b)); + assertTrue(b.equals(a)); + assertTrue(a.containsAll(b)); + assertTrue(b.containsAll(a)); + mustEqual(a.hashCode(), b.hashCode()); + + assertFalse(a.equals(null)); + } + + /** + * containsAll returns true for collections with subset of elements + */ + public void testContainsAll() { + List list = populatedList(3); + assertTrue(list.containsAll(Arrays.asList())); + assertTrue(list.containsAll(Arrays.asList(one))); + assertTrue(list.containsAll(Arrays.asList(one, two))); + assertFalse(list.containsAll(Arrays.asList(one, two, six))); + assertFalse(list.containsAll(Arrays.asList(six))); + + try { + list.containsAll(null); + shouldThrow(); + } catch (NullPointerException success) {} + } + + /** + * get returns the value at the given index + */ + public void testGet() { + List list = populatedList(3); + mustEqual(0, list.get(0)); + } + + /** + * indexOf(Object) returns the index of the first occurrence of the + * specified element in this list, or -1 if this list does not + * contain the element + */ + public void testIndexOf() { + List list = populatedList(3); + mustEqual(-1, list.indexOf(minusTen)); + int size = list.size(); + for (int i = 0; i < size; i++) { + Item I = itemFor(i); + mustEqual(i, list.indexOf(I)); + mustEqual(i, list.subList(0, size).indexOf(I)); + mustEqual(i, list.subList(0, i + 1).indexOf(I)); + mustEqual(-1, list.subList(0, i).indexOf(I)); + mustEqual(0, list.subList(i, size).indexOf(I)); + mustEqual(-1, list.subList(i + 1, size).indexOf(I)); + } + + list.add(one); + mustEqual(1, list.indexOf(one)); + mustEqual(1, list.subList(0, size + 1).indexOf(one)); + mustEqual(0, list.subList(1, size + 1).indexOf(one)); + mustEqual(size - 2, list.subList(2, size + 1).indexOf(one)); + mustEqual(0, list.subList(size, size + 1).indexOf(one)); + mustEqual(-1, list.subList(size + 1, size + 1).indexOf(one)); + } + + /** + * indexOf(E, int) returns the index of the first occurrence of the + * specified element in this list, searching forwards from index, + * or returns -1 if the element is not found + */ + public void testIndexOf2() { + Vector list = populatedList(3); + int size = list.size(); + mustEqual(-1, list.indexOf(minusTen, 0)); + + // we might expect IOOBE, but spec says otherwise + mustEqual(-1, list.indexOf(zero, size)); + mustEqual(-1, list.indexOf(zero, Integer.MAX_VALUE)); + + assertThrows( + IndexOutOfBoundsException.class, + () -> list.indexOf(zero, -1), + () -> list.indexOf(zero, Integer.MIN_VALUE)); + + for (int i = 0; i < size; i++) { + Item I = itemFor(i); + mustEqual(i, list.indexOf(I, 0)); + mustEqual(i, list.indexOf(I, i)); + mustEqual(-1, list.indexOf(I, i + 1)); + } + + list.add(one); + mustEqual(1, list.indexOf(one, 0)); + mustEqual(1, list.indexOf(one, 1)); + mustEqual(size, list.indexOf(one, 2)); + mustEqual(size, list.indexOf(one, size)); + } + + /** + * isEmpty returns true when empty, else false + */ + public void testIsEmpty() { + List empty = new Vector<>(); + assertTrue(empty.isEmpty()); + assertTrue(empty.subList(0, 0).isEmpty()); + + List full = populatedList(SIZE); + assertFalse(full.isEmpty()); + assertTrue(full.subList(0, 0).isEmpty()); + assertTrue(full.subList(SIZE, SIZE).isEmpty()); + } + + /** + * iterator of empty collection has no elements + */ + public void testEmptyIterator() { + Collection c = new Vector<>(); + assertIteratorExhausted(c.iterator()); + } + + /** + * lastIndexOf(Object) returns the index of the last occurrence of + * the specified element in this list, or -1 if this list does not + * contain the element + */ + public void testLastIndexOf1() { + List list = populatedList(3); + mustEqual(-1, list.lastIndexOf(minusTen)); + int size = list.size(); + for (int i = 0; i < size; i++) { + Item I = itemFor(i); + mustEqual(i, list.lastIndexOf(I)); + mustEqual(i, list.subList(0, size).lastIndexOf(I)); + mustEqual(i, list.subList(0, i + 1).lastIndexOf(I)); + mustEqual(-1, list.subList(0, i).lastIndexOf(I)); + mustEqual(0, list.subList(i, size).lastIndexOf(I)); + mustEqual(-1, list.subList(i + 1, size).lastIndexOf(I)); + } + + list.add(one); + mustEqual(size, list.lastIndexOf(one)); + mustEqual(size, list.subList(0, size + 1).lastIndexOf(one)); + mustEqual(1, list.subList(0, size).lastIndexOf(one)); + mustEqual(0, list.subList(1, 2).lastIndexOf(one)); + mustEqual(-1, list.subList(0, 1).indexOf(one)); + } + + /** + * lastIndexOf(E, int) returns the index of the last occurrence of the + * specified element in this list, searching backwards from index, or + * returns -1 if the element is not found + */ + public void testLastIndexOf2() { + Vector list = populatedList(3); + + // we might expect IOOBE, but spec says otherwise + mustEqual(-1, list.lastIndexOf(zero, -1)); + + int size = list.size(); + assertThrows( + IndexOutOfBoundsException.class, + () -> list.lastIndexOf(zero, size), + () -> list.lastIndexOf(zero, Integer.MAX_VALUE)); + + for (int i = 0; i < size; i++) { + Item I = itemFor(i); + mustEqual(i, list.lastIndexOf(I, i)); + mustEqual(list.indexOf(I), list.lastIndexOf(I, i)); + if (i > 0) + mustEqual(-1, list.lastIndexOf(I, i - 1)); + } + list.add(one); + list.add(three); + mustEqual(1, list.lastIndexOf(one, 1)); + mustEqual(1, list.lastIndexOf(one, 2)); + mustEqual(3, list.lastIndexOf(one, 3)); + mustEqual(3, list.lastIndexOf(one, 4)); + mustEqual(-1, list.lastIndexOf(three, 3)); + } + + /** + * size returns the number of elements + */ + public void testSize() { + List empty = new Vector<>(); + mustEqual(0, empty.size()); + mustEqual(0, empty.subList(0, 0).size()); + + List full = populatedList(SIZE); + mustEqual(SIZE, full.size()); + mustEqual(0, full.subList(0, 0).size()); + mustEqual(0, full.subList(SIZE, SIZE).size()); + } + + /** + * sublists contains elements at indexes offset from their base + */ + public void testSubList() { + List a = populatedList(10); + assertTrue(a.subList(1,1).isEmpty()); + for (int j = 0; j < 9; ++j) { + for (int i = j ; i < 10; ++i) { + List b = a.subList(j,i); + for (int k = j; k < i; ++k) { + mustEqual(k, b.get(k-j)); + } + } + } + + List s = a.subList(2, 5); + mustEqual(3, s.size()); + s.set(2, minusOne); + mustEqual(a.get(4), minusOne); + s.clear(); + mustEqual(7, a.size()); + + assertThrows( + IndexOutOfBoundsException.class, + () -> s.get(0), + () -> s.set(0, fortytwo)); + } + + /** + * toArray throws an ArrayStoreException when the given array + * can not store the objects inside the list + */ + @SuppressWarnings("CollectionToArraySafeParameter") + public void testToArray_ArrayStoreException() { + List list = new Vector<>(); + // Items are not auto-converted to Longs + list.add(eightysix); + list.add(ninetynine); + assertThrows( + ArrayStoreException.class, + () -> list.toArray(new Long[0]), + () -> list.toArray(new Long[5])); + } + + @SuppressWarnings("unchecked") + void testIndexOutOfBoundsException(List list) { + int size = list.size(); + assertThrows( + IndexOutOfBoundsException.class, + () -> list.get(-1), + () -> list.get(size), + () -> list.set(-1, "qwerty"), + () -> list.set(size, "qwerty"), + () -> list.add(-1, "qwerty"), + () -> list.add(size + 1, "qwerty"), + () -> list.remove(-1), + () -> list.remove(size), + () -> list.addAll(-1, Collections.emptyList()), + () -> list.addAll(size + 1, Collections.emptyList()), + () -> list.listIterator(-1), + () -> list.listIterator(size + 1), + () -> list.subList(-1, size), + () -> list.subList(0, size + 1)); + + // Conversely, operations that must not throw + list.addAll(0, Collections.emptyList()); + list.addAll(size, Collections.emptyList()); + list.add(0, "qwerty"); + list.add(list.size(), "qwerty"); + list.get(0); + list.get(list.size() - 1); + list.set(0, "azerty"); + list.set(list.size() - 1, "azerty"); + list.listIterator(0); + list.listIterator(list.size()); + list.subList(0, list.size()); + list.remove(list.size() - 1); + } + + /** + * IndexOutOfBoundsException is thrown when specified + */ + public void testIndexOutOfBoundsException() { + ThreadLocalRandom rnd = ThreadLocalRandom.current(); + List x = populatedList(rnd.nextInt(5)); + testIndexOutOfBoundsException(x); + + int start = rnd.nextInt(x.size() + 1); + int end = rnd.nextInt(start, x.size() + 1); + + // Vector#subList spec deviates slightly from List#subList spec + assertThrows( + IllegalArgumentException.class, + () -> x.subList(start, start - 1)); + + List subList = x.subList(start, end); + testIndexOutOfBoundsException(x); + } + + /** + * a deserialized/reserialized list equals original + */ + public void testSerialization() throws Exception { + List x = populatedList(SIZE); + List y = serialClone(x); + + assertNotSame(x, y); + mustEqual(x.size(), y.size()); + mustEqual(x.toString(), y.toString()); + assertTrue(Arrays.equals(x.toArray(), y.toArray())); + mustEqual(x, y); + mustEqual(y, x); + while (!x.isEmpty()) { + assertFalse(y.isEmpty()); + mustEqual(x.remove(0), y.remove(0)); + } + assertTrue(y.isEmpty()); + } + + /** + * tests for setSize() + */ + public void testSetSize() { + final Vector v = new Vector<>(); + for (int n : new int[] { 100, 5, 50 }) { + v.setSize(n); + mustEqual(n, v.size()); + assertNull(v.get(0)); + assertNull(v.get(n - 1)); + assertThrows(ArrayIndexOutOfBoundsException.class, + () -> v.setSize(-1)); + mustEqual(n, v.size()); + assertNull(v.get(0)); + assertNull(v.get(n - 1)); + } + } + }