// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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package com.google.protobuf;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import static java.util.Arrays.asList;
import com.google.protobuf.Internal.DoubleList;
import java.util.Collections;
import java.util.ConcurrentModificationException;
import java.util.Iterator;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link DoubleArrayList}. */
@RunWith(JUnit4.class)
public class DoubleArrayListTest {
private static final DoubleArrayList UNARY_LIST = newImmutableDoubleArrayList(1);
private static final DoubleArrayList TERTIARY_LIST = newImmutableDoubleArrayList(1, 2, 3);
private DoubleArrayList list;
@Before
public void setUp() throws Exception {
list = new DoubleArrayList();
}
@Test
public void testEmptyListReturnsSameInstance() {
assertThat(DoubleArrayList.emptyList()).isSameInstanceAs(DoubleArrayList.emptyList());
}
@Test
public void testEmptyListIsImmutable() {
assertImmutable(DoubleArrayList.emptyList());
}
@Test
public void testMakeImmutable() {
list.addDouble(3);
list.addDouble(4);
list.addDouble(5);
list.addDouble(7);
list.makeImmutable();
assertImmutable(list);
}
@Test
public void testModificationWithIteration() {
list.addAll(asList(1D, 2D, 3D, 4D));
Iterator<Double> iterator = list.iterator();
assertThat(list).hasSize(4);
assertThat((double) list.get(0)).isEqualTo(1D);
assertThat((double) iterator.next()).isEqualTo(1D);
list.set(0, 1D);
assertThat((double) iterator.next()).isEqualTo(2D);
list.remove(0);
try {
iterator.next();
assertWithMessage("expected exception").fail();
} catch (ConcurrentModificationException e) {
// expected
}
iterator = list.iterator();
list.add(0, 0D);
try {
iterator.next();
assertWithMessage("expected exception").fail();
} catch (ConcurrentModificationException e) {
// expected
}
}
@Test
public void testGet() {
assertThat((double) TERTIARY_LIST.get(0)).isEqualTo(1D);
assertThat((double) TERTIARY_LIST.get(1)).isEqualTo(2D);
assertThat((double) TERTIARY_LIST.get(2)).isEqualTo(3D);
try {
TERTIARY_LIST.get(-1);
assertWithMessage("expected exception").fail();
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
TERTIARY_LIST.get(3);
assertWithMessage("expected exception").fail();
} catch (IndexOutOfBoundsException e) {
// expected
}
}
@Test
public void testGetDouble() {
assertThat(TERTIARY_LIST.getDouble(0)).isEqualTo(1D);
assertThat(TERTIARY_LIST.getDouble(1)).isEqualTo(2D);
assertThat(TERTIARY_LIST.getDouble(2)).isEqualTo(3D);
try {
TERTIARY_LIST.get(-1);
assertWithMessage("expected exception").fail();
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
TERTIARY_LIST.get(3);
assertWithMessage("expected exception").fail();
} catch (IndexOutOfBoundsException e) {
// expected
}
}
@Test
public void testIndexOf_nullElement() {
assertThat(TERTIARY_LIST.indexOf(null)).isEqualTo(-1);
}
@Test
public void testIndexOf_incompatibleElementType() {
assertThat(TERTIARY_LIST.indexOf(new Object())).isEqualTo(-1);
}
@Test
public void testIndexOf_notInList() {
assertThat(UNARY_LIST.indexOf(2D)).isEqualTo(-1);
}
@Test
public void testIndexOf_notInListWithDuplicates() {
DoubleArrayList listWithDupes = newImmutableDoubleArrayList(1D, 1D);
assertThat(listWithDupes.indexOf(2D)).isEqualTo(-1);
}
@Test
public void testIndexOf_inList() {
assertThat(TERTIARY_LIST.indexOf(2D)).isEqualTo(1);
}
@Test
public void testIndexOf_inListWithDuplicates_matchAtHead() {
DoubleArrayList listWithDupes = newImmutableDoubleArrayList(1D, 1D, 2D);
assertThat(listWithDupes.indexOf(1D)).isEqualTo(0);
}
@Test
public void testIndexOf_inListWithDuplicates_matchMidList() {
DoubleArrayList listWithDupes = newImmutableDoubleArrayList(2D, 1D, 1D, 2D);
assertThat(listWithDupes.indexOf(1D)).isEqualTo(1);
}
@Test
public void testContains_nullElement() {
assertThat(TERTIARY_LIST).doesNotContain(null);
}
@Test
public void testContains_incompatibleElementType() {
assertThat(TERTIARY_LIST).doesNotContain(new Object());
}
@Test
public void testContains_notInList() {
assertThat(UNARY_LIST).doesNotContain(2D);
}
@Test
public void testContains_notInListWithDuplicates() {
DoubleArrayList listWithDupes = newImmutableDoubleArrayList(1D, 1D);
assertThat(listWithDupes).doesNotContain(2D);
}
@Test
public void testContains_inList() {
assertThat(TERTIARY_LIST).contains(2D);
}
@Test
public void testContains_inListWithDuplicates_matchAtHead() {
DoubleArrayList listWithDupes = newImmutableDoubleArrayList(1D, 1D, 2D);
assertThat(listWithDupes).contains(1D);
}
@Test
public void testContains_inListWithDuplicates_matchMidList() {
DoubleArrayList listWithDupes = newImmutableDoubleArrayList(2D, 1D, 1D, 2D);
assertThat(listWithDupes).contains(1D);
}
@Test
public void testSize() {
assertThat(DoubleArrayList.emptyList()).isEmpty();
assertThat(UNARY_LIST).hasSize(1);
assertThat(TERTIARY_LIST).hasSize(3);
list.addDouble(3);
list.addDouble(4);
list.addDouble(6);
list.addDouble(8);
assertThat(list).hasSize(4);
list.remove(0);
assertThat(list).hasSize(3);
list.add(17D);
assertThat(list).hasSize(4);
}
@Test
public void testSet() {
list.addDouble(2);
list.addDouble(4);
assertThat((double) list.set(0, 3D)).isEqualTo(2D);
assertThat(list.getDouble(0)).isEqualTo(3D);
assertThat((double) list.set(1, 0D)).isEqualTo(4D);
assertThat(list.getDouble(1)).isEqualTo(0D);
try {
list.set(-1, 0D);
assertWithMessage("expected exception").fail();
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
list.set(2, 0D);
assertWithMessage("expected exception").fail();
} catch (IndexOutOfBoundsException e) {
// expected
}
}
@Test
public void testSetDouble() {
list.addDouble(1);
list.addDouble(3);
assertThat(list.setDouble(0, 0)).isEqualTo(1D);
assertThat(list.getDouble(0)).isEqualTo(0D);
assertThat(list.setDouble(1, 0)).isEqualTo(3D);
assertThat(list.getDouble(1)).isEqualTo(0D);
try {
list.setDouble(-1, 0);
assertWithMessage("expected exception").fail();
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
list.setDouble(2, 0);
assertWithMessage("expected exception").fail();
} catch (IndexOutOfBoundsException e) {
// expected
}
}
@Test
public void testAdd() {
assertThat(list).isEmpty();
assertThat(list.add(2D)).isTrue();
assertThat(list).containsExactly(2D);
assertThat(list.add(3D)).isTrue();
list.add(0, 4D);
assertThat(list).containsExactly(4D, 2D, 3D).inOrder();
list.add(0, 1D);
list.add(0, 0D);
// Force a resize by getting up to 11 elements.
for (int i = 0; i < 6; i++) {
list.add(Double.valueOf(5 + i));
}
assertThat(list).containsExactly(0D, 1D, 4D, 2D, 3D, 5D, 6D, 7D, 8D, 9D, 10D).inOrder();
try {
list.add(-1, 5D);
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
list.add(4, 5D);
} catch (IndexOutOfBoundsException e) {
// expected
}
}
@Test
public void testAddDouble() {
assertThat(list).isEmpty();
list.addDouble(2);
assertThat(list).containsExactly(2D);
list.addDouble(3);
assertThat(list).containsExactly(2D, 3D).inOrder();
}
@Test
public void testAddAll() {
assertThat(list).isEmpty();
assertThat(list.addAll(Collections.singleton(1D))).isTrue();
assertThat(list).hasSize(1);
assertThat((double) list.get(0)).isEqualTo(1D);
assertThat(list.getDouble(0)).isEqualTo(1D);
assertThat(list.addAll(asList(2D, 3D, 4D, 5D, 6D))).isTrue();
assertThat(list).containsExactly(1D, 2D, 3D, 4D, 5D, 6D).inOrder();
assertThat(list.addAll(TERTIARY_LIST)).isTrue();
assertThat(list).containsExactly(1D, 2D, 3D, 4D, 5D, 6D, 1D, 2D, 3D).inOrder();
assertThat(list.addAll(Collections.<Double>emptyList())).isFalse();
assertThat(list.addAll(DoubleArrayList.emptyList())).isFalse();
}
@Test
public void testEquals() {
DoubleArrayList list1 = new DoubleArrayList();
DoubleArrayList list2 = new DoubleArrayList();
list1.addDouble(Double.longBitsToDouble(0x7ff0000000000001L));
list2.addDouble(Double.longBitsToDouble(0x7ff0000000000002L));
assertThat(list1).isEqualTo(list2);
}
@Test
public void testRemove() {
list.addAll(TERTIARY_LIST);
assertThat((double) list.remove(0)).isEqualTo(1D);
assertThat(list).containsExactly(2D, 3D).inOrder();
assertThat(list.remove(Double.valueOf(3))).isTrue();
assertThat(list).containsExactly(2D);
assertThat(list.remove(Double.valueOf(3))).isFalse();
assertThat(list).containsExactly(2D);
assertThat((double) list.remove(0)).isEqualTo(2D);
assertThat(list).isEmpty();
try {
list.remove(-1);
assertWithMessage("expected exception").fail();
} catch (IndexOutOfBoundsException e) {
// expected
}
try {
list.remove(0);
assertWithMessage("expected exception").fail();
} catch (IndexOutOfBoundsException e) {
// expected
}
}
@Test
public void testRemoveEnd_listAtCapacity() {
DoubleList toRemove = DoubleArrayList.emptyList().mutableCopyWithCapacity(1);
toRemove.addDouble(3);
toRemove.remove(0);
assertThat(toRemove).isEmpty();
}
@Test
public void testRemove_listAtCapacity() {
DoubleList toRemove = DoubleArrayList.emptyList().mutableCopyWithCapacity(2);
toRemove.addDouble(3);
toRemove.addDouble(4);
toRemove.remove(0);
assertThat(toRemove).hasSize(1);
assertThat((double) toRemove.get(0)).isEqualTo(4D);
}
@Test
public void testSublistRemoveEndOfCapacity() {
DoubleList toRemove = DoubleArrayList.emptyList().mutableCopyWithCapacity(1);
toRemove.addDouble(3);
toRemove.subList(0, 1).clear();
assertThat(toRemove).isEmpty();
}
private void assertImmutable(DoubleList list) {
if (list.contains(1D)) {
throw new RuntimeException("Cannot test the immutability of lists that contain 1.");
}
try {
list.add(1D);
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.add(0, 1D);
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.addAll(Collections.<Double>emptyList());
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.addAll(Collections.singletonList(1D));
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.addAll(new DoubleArrayList());
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.addAll(UNARY_LIST);
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.addAll(0, Collections.singleton(1D));
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.addAll(0, UNARY_LIST);
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.addAll(0, Collections.<Double>emptyList());
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.addDouble(0);
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.clear();
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.remove(1);
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.remove(new Object());
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.removeAll(Collections.<Double>emptyList());
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.removeAll(Collections.singleton(1D));
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.removeAll(UNARY_LIST);
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.retainAll(Collections.<Double>emptyList());
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.retainAll(Collections.singleton(1D));
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.retainAll(UNARY_LIST);
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.set(0, 0D);
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
try {
list.setDouble(0, 0);
assertWithMessage("expected exception").fail();
} catch (UnsupportedOperationException e) {
// expected
}
}
private static DoubleArrayList newImmutableDoubleArrayList(double... elements) {
DoubleArrayList list = new DoubleArrayList();
for (double element : elements) {
list.addDouble(element);
}
list.makeImmutable();
return list;
}
}
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