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/*
* Copyright (C) 2020 Sebastiano Vigna
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package it.unimi.dsi.fastutil.ints;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.util.Collections;
import java.util.HashMap;
import org.junit.Test;
import it.unimi.dsi.fastutil.objects.ObjectIterator;
public class Int2IntArrayMapTest {
@Test
public void testCopyConstructor() {
final Int2IntOpenHashMap m = new Int2IntOpenHashMap(new int[] { 1, 2 }, new int[] { 3, 4 });
assertEquals(new Int2IntArrayMap(m), m);
assertEquals(new HashMap<>(m), m);
}
@Test
public void testValuesClear() {
final Int2IntMap map = new Int2IntArrayMap(Int2IntMaps.singleton(42, 24));
map.values().clear();
assertTrue(map.isEmpty());
}
@Test
public void testValuesRemove() {
final Int2IntMap map = new Int2IntArrayMap(Int2IntMaps.singleton(42, 24));
map.values().rem(24);
assertTrue(map.isEmpty());
}
@Test
public void testValuesRemoveAll() {
final Int2IntMap map = new Int2IntArrayMap(Int2IntMaps.singleton(42, 24));
map.values().removeAll(Collections.singleton(Integer.valueOf(24)));
assertTrue(map.isEmpty());
}
@Test
public void testForEachRemaining() {
final Int2IntArrayMap s = new Int2IntArrayMap(new Int2IntLinkedOpenHashMap(new int[] { 0, 1, 2, 3,
4 }, new int[] { 0, 1, 2, 3, 4 }));
for (int i = 0; i <= s.size(); i++) {
final IntIterator iterator = s.keySet().intIterator();
final int[] j = new int[1];
for (j[0] = 0; j[0] < i; j[0]++) iterator.nextInt();
iterator.forEachRemaining(x -> {
if (x != j[0]++) throw new AssertionError();
});
}
}
@Test(expected = IllegalStateException.class)
public void testSkipZeroAtStart() {
final Int2IntArrayMap s = new Int2IntArrayMap(new Int2IntLinkedOpenHashMap(new int[] { 0, 1 }, new int[] { 0,
1 }));
final IntIterator i = s.keySet().intIterator();
i.skip(0);
i.remove();
}
@Test
public void testSkipOneAtStart() {
final Int2IntArrayMap s = new Int2IntArrayMap(new Int2IntLinkedOpenHashMap(new int[] { 0, 1 }, new int[] { 0,
1 }));
final IntIterator i = s.keySet().intIterator();
i.skip(1);
i.remove();
assertEquals(IntArraySet.ofUnchecked(1), s.keySet());
}
@Test
public void testSkipBeyondEnd() {
final Int2IntArrayMap s = new Int2IntArrayMap(new Int2IntLinkedOpenHashMap(new int[] { 0, 1 }, new int[] { 0,
1 }));
final IntIterator i = s.keySet().intIterator();
i.skip(4);
i.remove();
assertEquals(IntArraySet.ofUnchecked(0), s.keySet());
}
@Test
public void testSetValue() {
final Int2IntArrayMap s = new Int2IntArrayMap(new Int2IntLinkedOpenHashMap(new int[] { 0, 1 }, new int[] { 0,
1 }));
final ObjectIterator<Int2IntMap.Entry> i = s.int2IntEntrySet().iterator();
final Int2IntMap.Entry e = i.next();
assertEquals(e.setValue(1), 0);
assertEquals(e.setValue(0), 1);
final ObjectIterator<Int2IntMap.Entry> j = s.int2IntEntrySet().fastIterator();
final Int2IntMap.Entry f = j.next();
assertEquals(f.setValue(1), 0);
assertEquals(f.setValue(0), 1);
}
@Test(expected = ArrayIndexOutOfBoundsException.class)
public void testSetValueRemoved() {
final Int2IntArrayMap s = new Int2IntArrayMap(new Int2IntLinkedOpenHashMap(new int[] { 0, 1 }, new int[] { 0,
1 }));
final ObjectIterator<Int2IntMap.Entry> i = s.int2IntEntrySet().iterator();
final Int2IntMap.Entry e = i.next();
i.remove();
assertEquals(e.setValue(1), 0);
}
@Test(expected = ArrayIndexOutOfBoundsException.class)
public void testSetValueFastRemoved() {
final Int2IntArrayMap s = new Int2IntArrayMap(new Int2IntLinkedOpenHashMap(new int[] { 0, 1 }, new int[] { 0,
1 }));
final ObjectIterator<Int2IntMap.Entry> j = s.int2IntEntrySet().fastIterator();
final Int2IntMap.Entry f = j.next();
j.remove();
assertEquals(f.setValue(1), 0);
}
}
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