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This commit is contained in:
Gary Gregory 2020-01-12 10:17:05 -05:00
parent de7cb0105b
commit a963a123f7
1 changed files with 185 additions and 185 deletions
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370
src/test/java/org/apache/commons/collections4/IteratorUtilsTest.java
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@ -436,6 +436,11 @@ public class IteratorUtilsTest {
} }
} }
@Test(expected = NullPointerException.class)
public void testAsEnumerationNull() {
IteratorUtils.asEnumeration(null);
}
@Test @Test
public void testAsIterable() { public void testAsIterable() {
final List<Integer> list = new ArrayList<>(); final List<Integer> list = new ArrayList<>();
@ -467,6 +472,37 @@ public class IteratorUtilsTest {
} }
} }
@Test(expected = NullPointerException.class)
public void testAsIterator() {
final Vector<String> vector = new Vector<>();
vector.addElement("zero");
vector.addElement("one");
Enumeration<String> en = vector.elements();
assertTrue("create instance fail", IteratorUtils.asIterator(en) instanceof Iterator);
IteratorUtils.asIterator(null);
}
@Test
public void testAsIteratorNull() {
Collection coll = new ArrayList();
coll.add("test");
final Vector<String> vector = new Vector<>();
vector.addElement("test");
vector.addElement("one");
Enumeration<String> en = vector.elements();
assertTrue("create instance fail", IteratorUtils.asIterator(en, coll) instanceof Iterator);
try {
IteratorUtils.asIterator(null, coll);
} catch (NullPointerException npe) {
//
}
try {
IteratorUtils.asIterator(en, null);
} catch (NullPointerException npe) {
//
}
}
@Test @Test
public void testAsMultipleIterable() { public void testAsMultipleIterable() {
final List<Integer> list = new ArrayList<>(); final List<Integer> list = new ArrayList<>();
@ -504,6 +540,16 @@ public class IteratorUtilsTest {
} }
} }
@Test
public void testChainedIterator() {
ArrayList arrayList = new ArrayList();
Iterator ie = arrayList.iterator();
assertTrue("create instance fail", IteratorUtils.chainedIterator(ie) instanceof Iterator);
final Collection<Iterator<?>> coll = new ArrayList();
assertTrue("create instance fail", IteratorUtils.chainedIterator(coll) instanceof Iterator);
}
/** /**
* Tests methods collatedIterator(...) * Tests methods collatedIterator(...)
*/ */
@ -553,6 +599,42 @@ public class IteratorUtilsTest {
assertEquals(combinedList, result); assertEquals(combinedList, result);
} }
@Test(expected = NullPointerException.class)
public void testCollatedIteratorCollectionNull() {
Collection<Iterator<?>> coll = new ArrayList<>();
coll.add(collectionOdd.iterator());
// natural ordering
Iterator<?> it = IteratorUtils.collatedIterator(null, coll);
List<?> result = IteratorUtils.toList(it);
assertEquals(6, result.size());
IteratorUtils.collatedIterator(null, (Collection<Iterator<?>>) null);
}
@Test(expected = NullPointerException.class)
public void testCollatedIteratorNull() {
ArrayList arrayList = new ArrayList();
// natural ordering
Iterator<Integer> it = IteratorUtils.collatedIterator(null, collectionOdd.iterator(), collectionOdd.iterator(),
collectionOdd.iterator());
List<Integer> result = IteratorUtils.toList(it);
assertEquals(18, result.size());
it = IteratorUtils.collatedIterator(null, collectionOdd.iterator());
result = IteratorUtils.toList(it);
assertEquals(collectionOdd, result);
final Comparator<Integer> reverseComparator = ComparatorUtils
.reversedComparator(ComparatorUtils.<Integer>naturalComparator());
Collections.reverse(collectionOdd);
it = IteratorUtils.collatedIterator(reverseComparator, collectionOdd.iterator());
result = IteratorUtils.toList(it);
assertEquals(collectionOdd, result);
IteratorUtils.collatedIterator(null, arrayList.iterator(), arrayList.listIterator(), null);
}
// ----------------------------------------------------------------------- // -----------------------------------------------------------------------
/** /**
* Test empty iterator * Test empty iterator
@ -758,6 +840,41 @@ public class IteratorUtilsTest {
} }
} }
@Test
public void testFilteredIterator() {
ArrayList arrayList = new ArrayList();
Iterator ie = arrayList.iterator();
try {
IteratorUtils.filteredIterator(ie, null);
} catch (NullPointerException npe) {
//
}
try {
IteratorUtils.filteredIterator(null, null);
} catch (NullPointerException npe) {
//
}
}
@Test
public void testFilteredListIterator() {
List arrayList = new ArrayList();
arrayList.add("test");
Predicate predicate = INSTANCE;
assertTrue("create instance fail",
IteratorUtils.filteredListIterator(arrayList.listIterator(), predicate) instanceof ListIterator);
try {
IteratorUtils.filteredListIterator(null, predicate);
} catch (NullPointerException npe) {
//
}
try {
IteratorUtils.filteredListIterator(arrayList.listIterator(), null);
} catch (NullPointerException npe) {
//
}
}
@Test @Test
public void testFind() { public void testFind() {
Predicate<Number> testPredicate = equalPredicate((Number) 4); Predicate<Number> testPredicate = equalPredicate((Number) 4);
@ -906,6 +1023,26 @@ public class IteratorUtilsTest {
} }
} }
@Test(expected = NullPointerException.class)
public void testLoopingIterator() {
ArrayList arrayList = new ArrayList();
arrayList.add("test");
Collection coll = new ArrayList();
coll.add("test");
Iterator ie = arrayList.iterator();
assertTrue("create instance fail", IteratorUtils.loopingIterator(coll) instanceof ResettableIterator);
IteratorUtils.loopingIterator(null);
}
@Test(expected = NullPointerException.class)
public void testLoopingListIterator() {
ArrayList arrayList = new ArrayList();
arrayList.add("test");
Iterator ie = arrayList.iterator();
assertTrue("create instance fail", IteratorUtils.loopingListIterator(arrayList) instanceof ResettableIterator);
IteratorUtils.loopingListIterator(null);
}
/** /**
* Tests method nodeListIterator(Node) * Tests method nodeListIterator(Node)
*/ */
@ -967,6 +1104,38 @@ public class IteratorUtilsTest {
} }
} }
@Test
public void testObjectGraphIterator() {
assertTrue("create instance fail", IteratorUtils.objectGraphIterator(null, null) instanceof Iterator);
}
@Test(expected = NullPointerException.class)
public void testPeekingIterator() {
ArrayList arrayList = new ArrayList();
Iterator ie = arrayList.iterator();
assertTrue("create instance fail", IteratorUtils.peekingIterator(ie) instanceof Iterator);
IteratorUtils.peekingIterator(null);
}
@Test(expected = NullPointerException.class)
public void testPushBackIterator() {
ArrayList arrayList = new ArrayList();
Iterator ie = arrayList.iterator();
assertTrue("create instance fail", IteratorUtils.pushbackIterator(ie) instanceof Iterator);
IteratorUtils.pushbackIterator(null);
}
@Test
public void testSingletonIterator() {
assertTrue("create instance fail", IteratorUtils.singletonIterator(new Object()) instanceof ResettableIterator);
}
@Test
public void testSingletonListIterator() {
assertTrue("create instance fail", IteratorUtils.singletonListIterator(new Object()) instanceof Iterator);
}
@Test @Test
public void testToArray() { public void testToArray() {
final List<Object> list = new ArrayList<>(); final List<Object> list = new ArrayList<>();
@ -1059,6 +1228,22 @@ public class IteratorUtilsTest {
} }
} }
@Test
public void testTransformedIterator() {
ArrayList arrayList = new ArrayList();
Iterator ie = arrayList.iterator();
try {
IteratorUtils.transformedIterator(ie, null);
} catch (NullPointerException npe) {
//
}
try {
IteratorUtils.transformedIterator(null, null);
} catch (NullPointerException npe) {
//
}
}
/** /**
* Test remove() for an immutable Iterator. * Test remove() for an immutable Iterator.
*/ */
@ -1222,23 +1407,6 @@ public class IteratorUtilsTest {
assertTrue(listIterator.hasNext()); assertTrue(listIterator.hasNext());
} }
@Test(expected = NullPointerException.class)
public void testPushBackIterator() {
ArrayList arrayList = new ArrayList();
Iterator ie = arrayList.iterator();
assertTrue("create instance fail", IteratorUtils.pushbackIterator(ie) instanceof Iterator);
IteratorUtils.pushbackIterator(null);
}
@Test(expected = NullPointerException.class)
public void testPeekingIterator() {
ArrayList arrayList = new ArrayList();
Iterator ie = arrayList.iterator();
assertTrue("create instance fail", IteratorUtils.peekingIterator(ie) instanceof Iterator);
IteratorUtils.peekingIterator(null);
}
@Test(expected = NullPointerException.class) @Test(expected = NullPointerException.class)
public void testUnmodifiableMapIterator() { public void testUnmodifiableMapIterator() {
Set<?> set = new LinkedHashSet<>(); Set<?> set = new LinkedHashSet<>();
@ -1248,36 +1416,6 @@ public class IteratorUtilsTest {
} }
@Test
public void testChainedIterator() {
ArrayList arrayList = new ArrayList();
Iterator ie = arrayList.iterator();
assertTrue("create instance fail", IteratorUtils.chainedIterator(ie) instanceof Iterator);
final Collection<Iterator<?>> coll = new ArrayList();
assertTrue("create instance fail", IteratorUtils.chainedIterator(coll) instanceof Iterator);
}
@Test
public void testSingletonIterator() {
assertTrue("create instance fail", IteratorUtils.singletonIterator(new Object()) instanceof ResettableIterator);
}
@Test
public void testSingletonListIterator() {
assertTrue("create instance fail", IteratorUtils.singletonListIterator(new Object()) instanceof Iterator);
}
@Test(expected = NullPointerException.class)
public void testAsEnumerationNull() {
IteratorUtils.asEnumeration(null);
}
@Test
public void testObjectGraphIterator() {
assertTrue("create instance fail", IteratorUtils.objectGraphIterator(null, null) instanceof Iterator);
}
@Test @Test
public void testZippingIterator() { public void testZippingIterator() {
ArrayList arrayList = new ArrayList(); ArrayList arrayList = new ArrayList();
@ -1285,142 +1423,4 @@ public class IteratorUtilsTest {
assertTrue("create instance fail", IteratorUtils.zippingIterator(ie, ie, ie) instanceof ZippingIterator); assertTrue("create instance fail", IteratorUtils.zippingIterator(ie, ie, ie) instanceof ZippingIterator);
assertTrue("create instance fail", IteratorUtils.zippingIterator(ie, ie) instanceof ZippingIterator); assertTrue("create instance fail", IteratorUtils.zippingIterator(ie, ie) instanceof ZippingIterator);
} }
@Test
public void testFilteredIterator() {
ArrayList arrayList = new ArrayList();
Iterator ie = arrayList.iterator();
try {
IteratorUtils.filteredIterator(ie, null);
} catch (NullPointerException npe) {
//
}
try {
IteratorUtils.filteredIterator(null, null);
} catch (NullPointerException npe) {
//
}
}
@Test
public void testTransformedIterator() {
ArrayList arrayList = new ArrayList();
Iterator ie = arrayList.iterator();
try {
IteratorUtils.transformedIterator(ie, null);
} catch (NullPointerException npe) {
//
}
try {
IteratorUtils.transformedIterator(null, null);
} catch (NullPointerException npe) {
//
}
}
@Test(expected = NullPointerException.class)
public void testAsIterator() {
final Vector<String> vector = new Vector<>();
vector.addElement("zero");
vector.addElement("one");
Enumeration<String> en = vector.elements();
assertTrue("create instance fail", IteratorUtils.asIterator(en) instanceof Iterator);
IteratorUtils.asIterator(null);
}
@Test
public void testAsIteratorNull() {
Collection coll = new ArrayList();
coll.add("test");
final Vector<String> vector = new Vector<>();
vector.addElement("test");
vector.addElement("one");
Enumeration<String> en = vector.elements();
assertTrue("create instance fail", IteratorUtils.asIterator(en, coll) instanceof Iterator);
try {
IteratorUtils.asIterator(null, coll);
} catch (NullPointerException npe) {
//
}
try {
IteratorUtils.asIterator(en, null);
} catch (NullPointerException npe) {
//
}
}
@Test(expected = NullPointerException.class)
public void testLoopingIterator() {
ArrayList arrayList = new ArrayList();
arrayList.add("test");
Collection coll = new ArrayList();
coll.add("test");
Iterator ie = arrayList.iterator();
assertTrue("create instance fail", IteratorUtils.loopingIterator(coll) instanceof ResettableIterator);
IteratorUtils.loopingIterator(null);
}
@Test(expected = NullPointerException.class)
public void testLoopingListIterator() {
ArrayList arrayList = new ArrayList();
arrayList.add("test");
Iterator ie = arrayList.iterator();
assertTrue("create instance fail", IteratorUtils.loopingListIterator(arrayList) instanceof ResettableIterator);
IteratorUtils.loopingListIterator(null);
}
@Test(expected = NullPointerException.class)
public void testCollatedIteratorNull() {
ArrayList arrayList = new ArrayList();
// natural ordering
Iterator<Integer> it = IteratorUtils.collatedIterator(null, collectionOdd.iterator(), collectionOdd.iterator(),
collectionOdd.iterator());
List<Integer> result = IteratorUtils.toList(it);
assertEquals(18, result.size());
it = IteratorUtils.collatedIterator(null, collectionOdd.iterator());
result = IteratorUtils.toList(it);
assertEquals(collectionOdd, result);
final Comparator<Integer> reverseComparator = ComparatorUtils
.reversedComparator(ComparatorUtils.<Integer>naturalComparator());
Collections.reverse(collectionOdd);
it = IteratorUtils.collatedIterator(reverseComparator, collectionOdd.iterator());
result = IteratorUtils.toList(it);
assertEquals(collectionOdd, result);
IteratorUtils.collatedIterator(null, arrayList.iterator(), arrayList.listIterator(), null);
}
@Test(expected = NullPointerException.class)
public void testCollatedIteratorCollectionNull() {
Collection<Iterator<?>> coll = new ArrayList<>();
coll.add(collectionOdd.iterator());
// natural ordering
Iterator<?> it = IteratorUtils.collatedIterator(null, coll);
List<?> result = IteratorUtils.toList(it);
assertEquals(6, result.size());
IteratorUtils.collatedIterator(null, (Collection<Iterator<?>>) null);
}
@Test
public void testFilteredListIterator() {
List arrayList = new ArrayList();
arrayList.add("test");
Predicate predicate = INSTANCE;
assertTrue("create instance fail",
IteratorUtils.filteredListIterator(arrayList.listIterator(), predicate) instanceof ListIterator);
try {
IteratorUtils.filteredListIterator(null, predicate);
} catch (NullPointerException npe) {
//
}
try {
IteratorUtils.filteredListIterator(arrayList.listIterator(), null);
} catch (NullPointerException npe) {
//
}
}
} }