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Simplify several assertions in IteratorUtilsTest.

This commit is contained in:
Isira Seneviratne 2020-04-18 18:16:29 +05:30
parent 6b1e2eb08b
commit a31740689b
1 changed files with 101 additions and 101 deletions
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202
src/test/java/org/apache/commons/collections4/IteratorUtilsTest.java
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@ -157,10 +157,10 @@ public class IteratorUtilsTest {
public void testArrayIterator() {
final Object[] objArray = { "a", "b", "c" };
ResettableIterator<Object> iterator = IteratorUtils.arrayIterator(objArray);
assertTrue(iterator.next().equals("a"));
assertTrue(iterator.next().equals("b"));
assertEquals("a", iterator.next());
assertEquals("b", iterator.next());
iterator.reset();
assertTrue(iterator.next().equals("a"));
assertEquals("a", iterator.next());
try {
iterator = IteratorUtils.arrayIterator(Integer.valueOf(0));
@ -177,7 +177,7 @@ public class IteratorUtilsTest {
}
iterator = IteratorUtils.arrayIterator(objArray, 1);
assertTrue(iterator.next().equals("b"));
assertEquals("b", iterator.next());
try {
iterator = IteratorUtils.arrayIterator(objArray, -1);
@ -187,7 +187,7 @@ public class IteratorUtilsTest {
}
iterator = IteratorUtils.arrayIterator(objArray, 3);
assertTrue(!iterator.hasNext());
assertFalse(iterator.hasNext());
iterator.reset();
try {
@ -198,7 +198,7 @@ public class IteratorUtilsTest {
}
iterator = IteratorUtils.arrayIterator(objArray, 2, 3);
assertTrue(iterator.next().equals("c"));
assertEquals("c", iterator.next());
try {
iterator = IteratorUtils.arrayIterator(objArray, 2, 4);
@ -223,13 +223,13 @@ public class IteratorUtilsTest {
final int[] intArray = { 0, 1, 2 };
iterator = IteratorUtils.arrayIterator(intArray);
assertTrue(iterator.next().equals(Integer.valueOf(0)));
assertTrue(iterator.next().equals(Integer.valueOf(1)));
assertEquals(0, iterator.next());
assertEquals(1, iterator.next());
iterator.reset();
assertTrue(iterator.next().equals(Integer.valueOf(0)));
assertEquals(0, iterator.next());
iterator = IteratorUtils.arrayIterator(intArray, 1);
assertTrue(iterator.next().equals(Integer.valueOf(1)));
assertEquals(1, iterator.next());
try {
iterator = IteratorUtils.arrayIterator(intArray, -1);
@ -239,7 +239,7 @@ public class IteratorUtilsTest {
}
iterator = IteratorUtils.arrayIterator(intArray, 3);
assertTrue(!iterator.hasNext());
assertFalse(iterator.hasNext());
iterator.reset();
try {
@ -250,7 +250,7 @@ public class IteratorUtilsTest {
}
iterator = IteratorUtils.arrayIterator(intArray, 2, 3);
assertTrue(iterator.next().equals(Integer.valueOf(2)));
assertEquals(2, iterator.next());
try {
iterator = IteratorUtils.arrayIterator(intArray, 2, 4);
@ -278,19 +278,19 @@ public class IteratorUtilsTest {
public void testArrayListIterator() {
final Object[] objArray = { "a", "b", "c", "d" };
ResettableListIterator<Object> iterator = IteratorUtils.arrayListIterator(objArray);
assertTrue(!iterator.hasPrevious());
assertTrue(iterator.previousIndex() == -1);
assertTrue(iterator.nextIndex() == 0);
assertTrue(iterator.next().equals("a"));
assertTrue(iterator.previous().equals("a"));
assertTrue(iterator.next().equals("a"));
assertTrue(iterator.previousIndex() == 0);
assertTrue(iterator.nextIndex() == 1);
assertTrue(iterator.next().equals("b"));
assertTrue(iterator.next().equals("c"));
assertTrue(iterator.next().equals("d"));
assertTrue(iterator.nextIndex() == 4); // size of list
assertTrue(iterator.previousIndex() == 3);
assertFalse(iterator.hasPrevious());
assertEquals(-1, iterator.previousIndex());
assertEquals(0, iterator.nextIndex());
assertEquals("a", iterator.next());
assertEquals("a", iterator.previous());
assertEquals("a", iterator.next());
assertEquals(0, iterator.previousIndex());
assertEquals(1, iterator.nextIndex());
assertEquals("b", iterator.next());
assertEquals("c", iterator.next());
assertEquals("d", iterator.next());
assertEquals(4, iterator.nextIndex()); // size of list
assertEquals(3, iterator.previousIndex());
try {
iterator = IteratorUtils.arrayListIterator(Integer.valueOf(0));
@ -307,11 +307,11 @@ public class IteratorUtilsTest {
}
iterator = IteratorUtils.arrayListIterator(objArray, 1);
assertTrue(iterator.previousIndex() == -1);
assertTrue(!iterator.hasPrevious());
assertTrue(iterator.nextIndex() == 0);
assertTrue(iterator.next().equals("b"));
assertTrue(iterator.previousIndex() == 0);
assertEquals(-1, iterator.previousIndex());
assertFalse(iterator.hasPrevious());
assertEquals(0, iterator.nextIndex());
assertEquals("b", iterator.next());
assertEquals(0, iterator.previousIndex());
try {
iterator = IteratorUtils.arrayListIterator(objArray, -1);
@ -337,7 +337,7 @@ public class IteratorUtilsTest {
}
iterator = IteratorUtils.arrayListIterator(objArray, 2, 3);
assertTrue(iterator.next().equals("c"));
assertEquals("c", iterator.next());
try {
iterator = IteratorUtils.arrayListIterator(objArray, 2, 5);
@ -362,33 +362,33 @@ public class IteratorUtilsTest {
final int[] intArray = { 0, 1, 2 };
iterator = IteratorUtils.arrayListIterator(intArray);
assertTrue(iterator.previousIndex() == -1);
assertTrue(!iterator.hasPrevious());
assertTrue(iterator.nextIndex() == 0);
assertTrue(iterator.next().equals(Integer.valueOf(0)));
assertTrue(iterator.previousIndex() == 0);
assertTrue(iterator.nextIndex() == 1);
assertTrue(iterator.next().equals(Integer.valueOf(1)));
assertTrue(iterator.previousIndex() == 1);
assertTrue(iterator.nextIndex() == 2);
assertTrue(iterator.previous().equals(Integer.valueOf(1)));
assertTrue(iterator.next().equals(Integer.valueOf(1)));
assertEquals(iterator.previousIndex(), -1);
assertFalse(iterator.hasPrevious());
assertEquals(0, iterator.nextIndex());
assertEquals(0, iterator.next());
assertEquals(0, iterator.previousIndex());
assertEquals(1, iterator.nextIndex());
assertEquals(1, iterator.next());
assertEquals(1, iterator.previousIndex());
assertEquals(2, iterator.nextIndex());
assertEquals(1, iterator.previous());
assertEquals(1, iterator.next());
iterator = IteratorUtils.arrayListIterator(intArray, 1);
assertTrue(iterator.previousIndex() == -1);
assertTrue(!iterator.hasPrevious());
assertTrue(iterator.nextIndex() == 0);
assertTrue(iterator.next().equals(Integer.valueOf(1)));
assertTrue(iterator.previous().equals(Integer.valueOf(1)));
assertTrue(iterator.next().equals(Integer.valueOf(1)));
assertTrue(iterator.previousIndex() == 0);
assertTrue(iterator.nextIndex() == 1);
assertTrue(iterator.next().equals(Integer.valueOf(2)));
assertTrue(iterator.previousIndex() == 1);
assertTrue(iterator.nextIndex() == 2);
assertTrue(iterator.previous().equals(Integer.valueOf(2)));
assertTrue(iterator.previousIndex() == 0);
assertTrue(iterator.nextIndex() == 1);
assertEquals(-1, iterator.previousIndex());
assertFalse(iterator.hasPrevious());
assertEquals(0, iterator.nextIndex());
assertEquals(1, iterator.next());
assertEquals(1, iterator.previous());
assertEquals(1, iterator.next());
assertEquals(0, iterator.previousIndex());
assertEquals(1, iterator.nextIndex());
assertEquals(2, iterator.next());
assertEquals(1, iterator.previousIndex());
assertEquals(2, iterator.nextIndex());
assertEquals(2, iterator.previous());
assertEquals(0, iterator.previousIndex());
assertEquals(1, iterator.nextIndex());
try {
iterator = IteratorUtils.arrayListIterator(intArray, -1);
@ -398,7 +398,7 @@ public class IteratorUtilsTest {
}
iterator = IteratorUtils.arrayListIterator(intArray, 3);
assertTrue(!iterator.hasNext());
assertFalse(iterator.hasNext());
try {
iterator = IteratorUtils.arrayListIterator(intArray, 4);
@ -408,11 +408,11 @@ public class IteratorUtilsTest {
}
iterator = IteratorUtils.arrayListIterator(intArray, 2, 3);
assertTrue(!iterator.hasPrevious());
assertTrue(iterator.previousIndex() == -1);
assertTrue(iterator.next().equals(Integer.valueOf(2)));
assertFalse(iterator.hasPrevious());
assertEquals(-1, iterator.previousIndex());
assertEquals(2, iterator.next());
assertTrue(iterator.hasPrevious());
assertTrue(!iterator.hasNext());
assertFalse(iterator.hasNext());
try {
iterator = IteratorUtils.arrayListIterator(intArray, 2, 4);
@ -643,12 +643,12 @@ public class IteratorUtilsTest {
public void testEmptyIterator() {
assertSame(EmptyIterator.INSTANCE, IteratorUtils.EMPTY_ITERATOR);
assertSame(EmptyIterator.RESETTABLE_INSTANCE, IteratorUtils.EMPTY_ITERATOR);
assertEquals(true, IteratorUtils.EMPTY_ITERATOR instanceof Iterator);
assertEquals(true, IteratorUtils.EMPTY_ITERATOR instanceof ResettableIterator);
assertEquals(false, IteratorUtils.EMPTY_ITERATOR instanceof OrderedIterator);
assertEquals(false, IteratorUtils.EMPTY_ITERATOR instanceof ListIterator);
assertEquals(false, IteratorUtils.EMPTY_ITERATOR instanceof MapIterator);
assertEquals(false, IteratorUtils.EMPTY_ITERATOR.hasNext());
assertTrue(IteratorUtils.EMPTY_ITERATOR instanceof Iterator);
assertTrue(IteratorUtils.EMPTY_ITERATOR instanceof ResettableIterator);
assertFalse(IteratorUtils.EMPTY_ITERATOR instanceof OrderedIterator);
assertFalse(IteratorUtils.EMPTY_ITERATOR instanceof ListIterator);
assertFalse(IteratorUtils.EMPTY_ITERATOR instanceof MapIterator);
assertFalse(IteratorUtils.EMPTY_ITERATOR.hasNext());
IteratorUtils.EMPTY_ITERATOR.reset();
assertSame(IteratorUtils.EMPTY_ITERATOR, IteratorUtils.EMPTY_ITERATOR);
assertSame(IteratorUtils.EMPTY_ITERATOR, IteratorUtils.emptyIterator());
@ -672,12 +672,12 @@ public class IteratorUtilsTest {
public void testEmptyListIterator() {
assertSame(EmptyListIterator.INSTANCE, IteratorUtils.EMPTY_LIST_ITERATOR);
assertSame(EmptyListIterator.RESETTABLE_INSTANCE, IteratorUtils.EMPTY_LIST_ITERATOR);
assertEquals(true, IteratorUtils.EMPTY_LIST_ITERATOR instanceof Iterator);
assertEquals(true, IteratorUtils.EMPTY_LIST_ITERATOR instanceof ListIterator);
assertEquals(true, IteratorUtils.EMPTY_LIST_ITERATOR instanceof ResettableIterator);
assertEquals(true, IteratorUtils.EMPTY_LIST_ITERATOR instanceof ResettableListIterator);
assertEquals(false, IteratorUtils.EMPTY_LIST_ITERATOR instanceof MapIterator);
assertEquals(false, IteratorUtils.EMPTY_LIST_ITERATOR.hasNext());
assertTrue(IteratorUtils.EMPTY_LIST_ITERATOR instanceof Iterator);
assertTrue(IteratorUtils.EMPTY_LIST_ITERATOR instanceof ListIterator);
assertTrue(IteratorUtils.EMPTY_LIST_ITERATOR instanceof ResettableIterator);
assertTrue(IteratorUtils.EMPTY_LIST_ITERATOR instanceof ResettableListIterator);
assertFalse(IteratorUtils.EMPTY_LIST_ITERATOR instanceof MapIterator);
assertFalse(IteratorUtils.EMPTY_LIST_ITERATOR.hasNext());
assertEquals(0, IteratorUtils.EMPTY_LIST_ITERATOR.nextIndex());
assertEquals(-1, IteratorUtils.EMPTY_LIST_ITERATOR.previousIndex());
IteratorUtils.EMPTY_LIST_ITERATOR.reset();
@ -718,13 +718,13 @@ public class IteratorUtilsTest {
@SuppressWarnings("unchecked")
public void testEmptyMapIterator() {
assertSame(EmptyMapIterator.INSTANCE, IteratorUtils.EMPTY_MAP_ITERATOR);
assertEquals(true, IteratorUtils.EMPTY_MAP_ITERATOR instanceof Iterator);
assertEquals(true, IteratorUtils.EMPTY_MAP_ITERATOR instanceof MapIterator);
assertEquals(true, IteratorUtils.EMPTY_MAP_ITERATOR instanceof ResettableIterator);
assertEquals(false, IteratorUtils.EMPTY_MAP_ITERATOR instanceof ListIterator);
assertEquals(false, IteratorUtils.EMPTY_MAP_ITERATOR instanceof OrderedIterator);
assertEquals(false, IteratorUtils.EMPTY_MAP_ITERATOR instanceof OrderedMapIterator);
assertEquals(false, IteratorUtils.EMPTY_MAP_ITERATOR.hasNext());
assertTrue(IteratorUtils.EMPTY_MAP_ITERATOR instanceof Iterator);
assertTrue(IteratorUtils.EMPTY_MAP_ITERATOR instanceof MapIterator);
assertTrue(IteratorUtils.EMPTY_MAP_ITERATOR instanceof ResettableIterator);
assertFalse(IteratorUtils.EMPTY_MAP_ITERATOR instanceof ListIterator);
assertFalse(IteratorUtils.EMPTY_MAP_ITERATOR instanceof OrderedIterator);
assertFalse(IteratorUtils.EMPTY_MAP_ITERATOR instanceof OrderedMapIterator);
assertFalse(IteratorUtils.EMPTY_MAP_ITERATOR.hasNext());
((ResettableIterator<Object>) IteratorUtils.EMPTY_MAP_ITERATOR).reset();
assertSame(IteratorUtils.EMPTY_MAP_ITERATOR, IteratorUtils.EMPTY_MAP_ITERATOR);
assertSame(IteratorUtils.EMPTY_MAP_ITERATOR, IteratorUtils.emptyMapIterator());
@ -763,13 +763,13 @@ public class IteratorUtilsTest {
@SuppressWarnings("unchecked")
public void testEmptyOrderedIterator() {
assertSame(EmptyOrderedIterator.INSTANCE, IteratorUtils.EMPTY_ORDERED_ITERATOR);
assertEquals(true, IteratorUtils.EMPTY_ORDERED_ITERATOR instanceof Iterator);
assertEquals(true, IteratorUtils.EMPTY_ORDERED_ITERATOR instanceof OrderedIterator);
assertEquals(true, IteratorUtils.EMPTY_ORDERED_ITERATOR instanceof ResettableIterator);
assertEquals(false, IteratorUtils.EMPTY_ORDERED_ITERATOR instanceof ListIterator);
assertEquals(false, IteratorUtils.EMPTY_ORDERED_ITERATOR instanceof MapIterator);
assertEquals(false, IteratorUtils.EMPTY_ORDERED_ITERATOR.hasNext());
assertEquals(false, IteratorUtils.EMPTY_ORDERED_ITERATOR.hasPrevious());
assertTrue(IteratorUtils.EMPTY_ORDERED_ITERATOR instanceof Iterator);
assertTrue(IteratorUtils.EMPTY_ORDERED_ITERATOR instanceof OrderedIterator);
assertTrue(IteratorUtils.EMPTY_ORDERED_ITERATOR instanceof ResettableIterator);
assertFalse(IteratorUtils.EMPTY_ORDERED_ITERATOR instanceof ListIterator);
assertFalse(IteratorUtils.EMPTY_ORDERED_ITERATOR instanceof MapIterator);
assertFalse(IteratorUtils.EMPTY_ORDERED_ITERATOR.hasNext());
assertFalse(IteratorUtils.EMPTY_ORDERED_ITERATOR.hasPrevious());
((ResettableIterator<Object>) IteratorUtils.EMPTY_ORDERED_ITERATOR).reset();
assertSame(IteratorUtils.EMPTY_ORDERED_ITERATOR, IteratorUtils.EMPTY_ORDERED_ITERATOR);
assertSame(IteratorUtils.EMPTY_ORDERED_ITERATOR, IteratorUtils.emptyOrderedIterator());
@ -798,13 +798,13 @@ public class IteratorUtilsTest {
@SuppressWarnings("unchecked")
public void testEmptyOrderedMapIterator() {
assertSame(EmptyOrderedMapIterator.INSTANCE, IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR);
assertEquals(true, IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR instanceof Iterator);
assertEquals(true, IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR instanceof MapIterator);
assertEquals(true, IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR instanceof OrderedMapIterator);
assertEquals(true, IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR instanceof ResettableIterator);
assertEquals(false, IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR instanceof ListIterator);
assertEquals(false, IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR.hasNext());
assertEquals(false, IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR.hasPrevious());
assertTrue(IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR instanceof Iterator);
assertTrue(IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR instanceof MapIterator);
assertTrue(IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR instanceof OrderedMapIterator);
assertTrue(IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR instanceof ResettableIterator);
assertFalse(IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR instanceof ListIterator);
assertFalse(IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR.hasNext());
assertFalse(IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR.hasPrevious());
((ResettableIterator<Object>) IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR).reset();
assertSame(IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR, IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR);
assertSame(IteratorUtils.EMPTY_ORDERED_MAP_ITERATOR, IteratorUtils.emptyOrderedMapIterator());
@ -879,10 +879,10 @@ public class IteratorUtilsTest {
public void testFind() {
Predicate<Number> testPredicate = equalPredicate((Number) 4);
Integer test = IteratorUtils.find(iterableA.iterator(), testPredicate);
assertTrue(test.equals(4));
assertEquals(4, (int) test);
testPredicate = equalPredicate((Number) 45);
test = IteratorUtils.find(iterableA.iterator(), testPredicate);
assertTrue(test == null);
assertNull(test);
assertNull(IteratorUtils.find(null, testPredicate));
try {
assertNull(IteratorUtils.find(iterableA.iterator(), null));
@ -975,7 +975,7 @@ public class IteratorUtilsTest {
} catch (final IndexOutOfBoundsException e) {
// expected
}
assertTrue(!iterator.hasNext());
assertFalse(iterator.hasNext());
}
@Test
@ -1295,7 +1295,7 @@ public class IteratorUtilsTest {
assertEquals("d", iterator.next());
assertTrue(!iterator.hasNext());
assertFalse(iterator.hasNext());
}
/**
@ -1363,7 +1363,7 @@ public class IteratorUtilsTest {
public void testUnmodifiableListIteratorIteration() {
final ListIterator<String> listIterator = getImmutableListIterator();
assertTrue(!listIterator.hasPrevious());
assertFalse(listIterator.hasPrevious());
assertTrue(listIterator.hasNext());
assertEquals("a", listIterator.next());
@ -1384,7 +1384,7 @@ public class IteratorUtilsTest {
assertEquals("d", listIterator.next());
assertTrue(listIterator.hasPrevious());
assertTrue(!listIterator.hasNext());
assertFalse(listIterator.hasNext());
assertEquals("d", listIterator.previous());
@ -1403,7 +1403,7 @@ public class IteratorUtilsTest {
assertEquals("a", listIterator.previous());
assertTrue(!listIterator.hasPrevious());
assertFalse(listIterator.hasPrevious());
assertTrue(listIterator.hasNext());
}