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RichIterableUniqueTestCase.java
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RichIterableUniqueTestCase.java
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/*
* Copyright (c) 2022 Goldman Sachs and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompany this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.eclipse.collections.test;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;
import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.bag.ImmutableBag;
import org.eclipse.collections.api.bag.MutableBag;
import org.eclipse.collections.api.block.function.Function;
import org.eclipse.collections.api.block.function.Function2;
import org.eclipse.collections.api.collection.MutableCollection;
import org.eclipse.collections.api.collection.primitive.MutableBooleanCollection;
import org.eclipse.collections.api.collection.primitive.MutableByteCollection;
import org.eclipse.collections.api.collection.primitive.MutableCharCollection;
import org.eclipse.collections.api.collection.primitive.MutableDoubleCollection;
import org.eclipse.collections.api.collection.primitive.MutableFloatCollection;
import org.eclipse.collections.api.collection.primitive.MutableIntCollection;
import org.eclipse.collections.api.collection.primitive.MutableLongCollection;
import org.eclipse.collections.api.collection.primitive.MutableShortCollection;
import org.eclipse.collections.api.factory.Bags;
import org.eclipse.collections.api.factory.Lists;
import org.eclipse.collections.api.factory.Sets;
import org.eclipse.collections.api.factory.SortedSets;
import org.eclipse.collections.api.list.MutableList;
import org.eclipse.collections.api.map.MapIterable;
import org.eclipse.collections.api.map.MutableMap;
import org.eclipse.collections.api.multimap.Multimap;
import org.eclipse.collections.api.multimap.MutableMultimap;
import org.eclipse.collections.api.partition.PartitionIterable;
import org.eclipse.collections.api.tuple.Pair;
import org.eclipse.collections.impl.bag.sorted.mutable.TreeBag;
import org.eclipse.collections.impl.block.factory.Comparators;
import org.eclipse.collections.impl.block.factory.Functions;
import org.eclipse.collections.impl.block.factory.IntegerPredicates;
import org.eclipse.collections.impl.block.factory.Predicates2;
import org.eclipse.collections.impl.block.factory.Procedures;
import org.eclipse.collections.impl.block.function.AddFunction;
import org.eclipse.collections.impl.factory.primitive.ObjectDoubleMaps;
import org.eclipse.collections.impl.factory.primitive.ObjectLongMaps;
import org.eclipse.collections.impl.list.Interval;
import org.eclipse.collections.impl.map.mutable.UnifiedMap;
import org.eclipse.collections.impl.map.sorted.mutable.TreeSortedMap;
import org.eclipse.collections.impl.test.SerializeTestHelper;
import org.eclipse.collections.impl.tuple.Tuples;
import org.junit.Assert;
import org.junit.Test;
import static org.eclipse.collections.impl.test.Verify.assertPostSerializedEqualsAndHashCode;
import static org.eclipse.collections.test.IterableTestCase.assertEquals;
import static org.eclipse.collections.test.IterableTestCase.assertNotEquals;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertThrows;
import static org.junit.Assert.fail;
public interface RichIterableUniqueTestCase extends RichIterableTestCase
{
@Override
default boolean allowsDuplicates()
{
return false;
}
@Override
@Test
default void Object_PostSerializedEqualsAndHashCode()
{
Iterable<Integer> iterable = this.newWith(3, 2, 1);
Object deserialized = SerializeTestHelper.serializeDeserialize(iterable);
Assert.assertNotSame(iterable, deserialized);
}
@Override
@Test
default void Object_equalsAndHashCode()
{
assertPostSerializedEqualsAndHashCode(this.newWith(3, 2, 1));
assertNotEquals(this.newWith(4, 3, 2, 1), this.newWith(3, 2, 1));
assertNotEquals(this.newWith(3, 2, 1), this.newWith(4, 3, 2, 1));
assertNotEquals(this.newWith(2, 1), this.newWith(3, 2, 1));
assertNotEquals(this.newWith(3, 2, 1), this.newWith(2, 1));
assertNotEquals(this.newWith(4, 2, 1), this.newWith(3, 2, 1));
assertNotEquals(this.newWith(3, 2, 1), this.newWith(4, 2, 1));
}
@Test
default void Iterable_sanity_check()
{
String s = "";
assertThrows(IllegalStateException.class, () -> this.newWith(s, s));
}
@Override
default void Iterable_toString()
{
RichIterable<Integer> iterable = this.newWith(3, 2, 1);
Assert.assertEquals("[3, 2, 1]", iterable.toString());
Assert.assertEquals("[3, 2, 1]", iterable.asLazy().toString());
}
@Override
@Test
default void InternalIterable_forEach()
{
{
RichIterable<Integer> iterable = this.newWith(3, 2, 1);
MutableCollection<Integer> result = this.newMutableForFilter();
iterable.forEach(Procedures.cast(i -> result.add(i + 10)));
assertEquals(this.newMutableForFilter(13, 12, 11), result);
}
{
RichIterable<Integer> iterable = this.newWith(2, 1);
MutableCollection<Integer> result = this.newMutableForFilter();
iterable.forEach(Procedures.cast(i -> result.add(i + 10)));
assertEquals(this.newMutableForFilter(12, 11), result);
}
RichIterable<Integer> iterable = this.newWith(1);
MutableCollection<Integer> result = this.newMutableForFilter();
iterable.forEach(Procedures.cast(i -> result.add(i + 10)));
assertEquals(this.newMutableForFilter(11), result);
this.newWith().forEach(Procedures.cast(each -> fail()));
}
@Override
@Test
default void RichIterable_tap()
{
RichIterable<Integer> iterable = this.newWith(3, 2, 1);
MutableCollection<Integer> result = this.newMutableForFilter();
iterable.tap(result::add).forEach(Procedures.noop());
assertEquals(this.newMutableForFilter(3, 2, 1), result);
this.newWith().tap(Procedures.cast(each -> fail()));
}
@Override
@Test
default void InternalIterable_forEachWith()
{
RichIterable<Integer> iterable = this.newWith(3, 2, 1);
MutableCollection<Integer> result = this.newMutableForFilter();
iterable.forEachWith((argument1, argument2) -> result.add(argument1 + argument2), 10);
assertEquals(this.newMutableForFilter(13, 12, 11), result);
}
@Test
default void RichIterable_size()
{
assertEquals(3, this.newWith(3, 2, 1).size());
}
@Override
@Test
default void RichIterable_toArray()
{
Object[] array = this.newWith(3, 2, 1).toArray();
assertArrayEquals(new Object[]{3, 2, 1}, array);
}
@Override
@Test
default void RichIterable_select_reject()
{
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
assertEquals(
this.getExpectedFiltered(4, 2),
iterable.select(IntegerPredicates.isEven()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.select(IntegerPredicates.isEven(), target);
assertEquals(this.getExpectedFiltered(4, 2), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(4, 3),
iterable.selectWith(Predicates2.greaterThan(), 2));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.selectWith(Predicates2.greaterThan(), 2, target);
assertEquals(this.getExpectedFiltered(4, 3), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(4, 2),
iterable.reject(IntegerPredicates.isOdd()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.reject(IntegerPredicates.isOdd(), target);
assertEquals(this.getExpectedFiltered(4, 2), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(4, 3),
iterable.rejectWith(Predicates2.lessThan(), 3));
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.rejectWith(Predicates2.lessThan(), 3, target);
assertEquals(this.getExpectedFiltered(4, 3), result);
assertSame(target, result);
}
{
RichIterable<Integer> iterable = this.newWith(3, 2, 1);
assertEquals(
this.getExpectedFiltered(2),
iterable.select(IntegerPredicates.isEven()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.select(IntegerPredicates.isEven(), target);
assertEquals(this.getExpectedFiltered(2), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(3),
iterable.selectWith(Predicates2.greaterThan(), 2));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.selectWith(Predicates2.greaterThan(), 2, target);
assertEquals(this.getExpectedFiltered(3), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(2),
iterable.reject(IntegerPredicates.isOdd()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.reject(IntegerPredicates.isOdd(), target);
assertEquals(this.getExpectedFiltered(2), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(3),
iterable.rejectWith(Predicates2.lessThan(), 3));
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.rejectWith(Predicates2.lessThan(), 3, target);
assertEquals(this.getExpectedFiltered(3), result);
assertSame(target, result);
}
{
RichIterable<Integer> iterable = this.newWith(2, 1);
assertEquals(
this.getExpectedFiltered(2),
iterable.select(IntegerPredicates.isEven()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.select(IntegerPredicates.isEven(), target);
assertEquals(this.getExpectedFiltered(2), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(),
iterable.selectWith(Predicates2.greaterThan(), 2));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.selectWith(Predicates2.greaterThan(), 2, target);
assertEquals(this.getExpectedFiltered(), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(2),
iterable.reject(IntegerPredicates.isOdd()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.reject(IntegerPredicates.isOdd(), target);
assertEquals(this.getExpectedFiltered(2), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(),
iterable.rejectWith(Predicates2.lessThan(), 3));
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.rejectWith(Predicates2.lessThan(), 3, target);
assertEquals(this.getExpectedFiltered(), result);
assertSame(target, result);
}
{
RichIterable<Integer> iterable = this.newWith(1);
assertEquals(
this.getExpectedFiltered(),
iterable.select(IntegerPredicates.isEven()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.select(IntegerPredicates.isEven(), target);
assertEquals(this.getExpectedFiltered(), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(1),
iterable.select(IntegerPredicates.isOdd()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.select(IntegerPredicates.isOdd(), target);
assertEquals(this.getExpectedFiltered(1), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(),
iterable.selectWith(Predicates2.greaterThan(), 2));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.selectWith(Predicates2.greaterThan(), 2, target);
assertEquals(this.getExpectedFiltered(), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(1),
iterable.selectWith(Predicates2.greaterThan(), 0));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.selectWith(Predicates2.greaterThan(), 0, target);
assertEquals(this.getExpectedFiltered(1), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(),
iterable.reject(IntegerPredicates.isOdd()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.reject(IntegerPredicates.isOdd(), target);
assertEquals(this.getExpectedFiltered(), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(1),
iterable.reject(IntegerPredicates.isEven()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.reject(IntegerPredicates.isEven(), target);
assertEquals(this.getExpectedFiltered(1), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(),
iterable.rejectWith(Predicates2.lessThan(), 3));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.rejectWith(Predicates2.lessThan(), 3, target);
assertEquals(this.getExpectedFiltered(), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(1),
iterable.rejectWith(Predicates2.lessThan(), 0));
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.rejectWith(Predicates2.lessThan(), 0, target);
assertEquals(this.getExpectedFiltered(1), result);
assertSame(target, result);
}
RichIterable<Integer> iterable = this.newWith();
assertEquals(
this.getExpectedFiltered(),
iterable.select(IntegerPredicates.isEven()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.select(IntegerPredicates.isEven(), target);
assertEquals(this.getExpectedFiltered(), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(),
iterable.selectWith(Predicates2.greaterThan(), 2));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.selectWith(Predicates2.greaterThan(), 2, target);
assertEquals(this.getExpectedFiltered(), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(),
iterable.reject(IntegerPredicates.isOdd()));
{
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.reject(IntegerPredicates.isOdd(), target);
assertEquals(this.getExpectedFiltered(), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFiltered(),
iterable.rejectWith(Predicates2.lessThan(), 3));
MutableCollection<Integer> target = this.newMutableForFilter();
MutableCollection<Integer> result = iterable.rejectWith(Predicates2.lessThan(), 3, target);
assertEquals(this.getExpectedFiltered(), result);
assertSame(target, result);
}
@Override
@Test
default void RichIterable_partition()
{
RichIterable<Integer> iterable = this.newWith(-3, -2, -1, 0, 1, 2, 3);
PartitionIterable<Integer> partition = iterable.partition(IntegerPredicates.isEven());
assertEquals(this.getExpectedFiltered(-2, 0, 2), partition.getSelected());
assertEquals(this.getExpectedFiltered(-3, -1, 1, 3), partition.getRejected());
PartitionIterable<Integer> partitionWith = iterable.partitionWith(Predicates2.greaterThan(), 0);
assertEquals(this.getExpectedFiltered(1, 2, 3), partitionWith.getSelected());
assertEquals(this.getExpectedFiltered(-3, -2, -1, 0), partitionWith.getRejected());
}
@Override
@Test
default void RichIterable_selectInstancesOf()
{
RichIterable<Number> iterable = this.newWith(1, 2.0, 3, 4.0);
assertEquals(this.getExpectedFiltered(), iterable.selectInstancesOf(String.class));
assertEquals(this.getExpectedFiltered(1, 3), iterable.selectInstancesOf(Integer.class));
assertEquals(this.getExpectedFiltered(1, 2.0, 3, 4.0), iterable.selectInstancesOf(Number.class));
}
@Override
@Test
default void RichIterable_collect()
{
RichIterable<Integer> iterable = this.newWith(13, 12, 11, 3, 2, 1);
assertEquals(
this.getExpectedTransformed(3, 2, 1, 3, 2, 1),
iterable.collect(i -> i % 10));
{
MutableCollection<Integer> target = this.newMutableForTransform();
MutableCollection<Integer> result = iterable.collect(i -> i % 10, target);
assertEquals(this.getExpectedTransformed(3, 2, 1, 3, 2, 1), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedTransformed(3, 2, 1, 3, 2, 1),
iterable.collectWith((i, mod) -> i % mod, 10));
MutableCollection<Integer> target = this.newMutableForTransform();
MutableCollection<Integer> result = iterable.collectWith((i, mod) -> i % mod, 10, target);
assertEquals(this.getExpectedTransformed(3, 2, 1, 3, 2, 1), result);
assertSame(target, result);
}
@Override
@Test
default void RichIterable_collectIf()
{
assertEquals(
this.getExpectedTransformed(3, 1, 3, 1),
this.newWith(13, 12, 11, 3, 2, 1).collectIf(i -> i % 2 != 0, i -> i % 10));
MutableCollection<Integer> target = this.newMutableForTransform();
MutableCollection<Integer> result = this.newWith(13, 12, 11, 3, 2, 1).collectIf(i -> i % 2 != 0, i -> i % 10, target);
assertEquals(this.newMutableForTransform(3, 1, 3, 1), result);
assertSame(target, result);
}
@Override
@Test
default void RichIterable_collectPrimitive()
{
assertEquals(
this.getExpectedBoolean(false, true, false),
this.newWith(3, 2, 1).collectBoolean(each -> each % 2 == 0));
{
MutableBooleanCollection target = this.newBooleanForTransform();
MutableBooleanCollection result = this.newWith(3, 2, 1).collectBoolean(each -> each % 2 == 0, target);
assertEquals(this.getExpectedBoolean(false, true, false), result);
assertSame(target, result);
}
RichIterable<Integer> iterable = this.newWith(13, 12, 11, 3, 2, 1);
assertEquals(
this.getExpectedByte((byte) 3, (byte) 2, (byte) 1, (byte) 3, (byte) 2, (byte) 1),
iterable.collectByte(each -> (byte) (each % 10)));
{
MutableByteCollection target = this.newByteForTransform();
MutableByteCollection result = iterable.collectByte(each -> (byte) (each % 10), target);
assertEquals(this.getExpectedByte((byte) 3, (byte) 2, (byte) 1, (byte) 3, (byte) 2, (byte) 1), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedChar((char) 3, (char) 2, (char) 1, (char) 3, (char) 2, (char) 1),
iterable.collectChar(each -> (char) (each % 10)));
{
MutableCharCollection target = this.newCharForTransform();
MutableCharCollection result = iterable.collectChar(each -> (char) (each % 10), target);
assertEquals(this.getExpectedChar((char) 3, (char) 2, (char) 1, (char) 3, (char) 2, (char) 1), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedDouble(3.0, 2.0, 1.0, 3.0, 2.0, 1.0),
iterable.collectDouble(each -> (double) (each % 10)));
{
MutableDoubleCollection target = this.newDoubleForTransform();
MutableDoubleCollection result = iterable.collectDouble(each -> (double) (each % 10), target);
assertEquals(this.getExpectedDouble(3.0, 2.0, 1.0, 3.0, 2.0, 1.0), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedFloat(3.0f, 2.0f, 1.0f, 3.0f, 2.0f, 1.0f),
iterable.collectFloat(each -> (float) (each % 10)));
{
MutableFloatCollection target = this.newFloatForTransform();
MutableFloatCollection result = iterable.collectFloat(each -> (float) (each % 10), target);
assertEquals(this.getExpectedFloat(3.0f, 2.0f, 1.0f, 3.0f, 2.0f, 1.0f), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedInt(3, 2, 1, 3, 2, 1),
iterable.collectInt(each -> each % 10));
{
MutableIntCollection target = this.newIntForTransform();
MutableIntCollection result = iterable.collectInt(each -> each % 10, target);
assertEquals(this.getExpectedInt(3, 2, 1, 3, 2, 1), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedLong(3, 2, 1, 3, 2, 1),
iterable.collectLong(each -> each % 10));
{
MutableLongCollection target = this.newLongForTransform();
MutableLongCollection result = iterable.collectLong(each -> each % 10, target);
assertEquals(this.getExpectedLong(3, 2, 1, 3, 2, 1), result);
assertSame(target, result);
}
assertEquals(
this.getExpectedShort((short) 3, (short) 2, (short) 1, (short) 3, (short) 2, (short) 1),
iterable.collectShort(each -> (short) (each % 10)));
MutableShortCollection target = this.newShortForTransform();
MutableShortCollection result = iterable.collectShort(each -> (short) (each % 10), target);
assertEquals(this.getExpectedShort((short) 3, (short) 2, (short) 1, (short) 3, (short) 2, (short) 1), result);
assertSame(target, result);
}
@Override
@Test
default void RichIterable_flatCollect()
{
assertEquals(
this.getExpectedTransformed(1, 2, 3, 1, 2, 1),
this.newWith(3, 2, 1).flatCollect(Interval::oneTo));
assertEquals(
this.getExpectedTransformed(1, 2, 3, 1, 2, 1),
this.newWith(3, 2, 1).flatCollect(Interval::oneTo, this.newMutableForTransform()));
}
@Test
default void RichIterable_flatCollectWith()
{
assertEquals(
this.getExpectedTransformed(3, 2, 1, 2, 1, 1),
this.newWith(3, 2, 1).flatCollectWith(Interval::fromTo, 1));
assertEquals(
this.newMutableForTransform(3, 2, 1, 2, 1, 1),
this.newWith(3, 2, 1).flatCollectWith(Interval::fromTo, 1, this.newMutableForTransform()));
}
@Override
@Test
default void RichIterable_count()
{
RichIterable<Integer> iterable = this.newWith(3, 2, 1);
assertEquals(1, iterable.count(Integer.valueOf(3)::equals));
assertEquals(1, iterable.count(Integer.valueOf(2)::equals));
assertEquals(1, iterable.count(Integer.valueOf(1)::equals));
assertEquals(0, iterable.count(Integer.valueOf(0)::equals));
assertEquals(2, iterable.count(i -> i % 2 != 0));
assertEquals(3, iterable.count(i -> i > 0));
assertEquals(1, iterable.countWith(Object::equals, 3));
assertEquals(1, iterable.countWith(Object::equals, 2));
assertEquals(1, iterable.countWith(Object::equals, 1));
assertEquals(0, iterable.countWith(Object::equals, 0));
assertEquals(3, iterable.countWith(Predicates2.greaterThan(), 0));
}
@Override
@Test
default void RichIterable_groupBy()
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
Function<Integer, Boolean> groupByFunction = object -> IntegerPredicates.isOdd().accept(object);
MutableMap<Boolean, RichIterable<Integer>> groupByExpected =
UnifiedMap.newWithKeysValues(
Boolean.TRUE, this.newMutableForFilter(3, 1),
Boolean.FALSE, this.newMutableForFilter(4, 2));
assertEquals(groupByExpected, iterable.groupBy(groupByFunction).toMap());
Function<Integer, Boolean> function = (Integer object) -> true;
MutableMultimap<Boolean, Integer> target = this.<Integer>newWith().groupBy(function).toMutable();
MutableMultimap<Boolean, Integer> multimap2 = iterable.groupBy(groupByFunction, target);
assertEquals(groupByExpected, multimap2.toMap());
assertSame(target, multimap2);
Function<Integer, Iterable<Integer>> groupByEachFunction = integer -> Interval.fromTo(-1, -integer);
MutableMap<Integer, RichIterable<Integer>> expectedGroupByEach =
UnifiedMap.newWithKeysValues(
-4, this.newMutableForFilter(4),
-3, this.newMutableForFilter(4, 3),
-2, this.newMutableForFilter(4, 3, 2),
-1, this.newMutableForFilter(4, 3, 2, 1));
assertEquals(expectedGroupByEach, iterable.groupByEach(groupByEachFunction).toMap());
MutableMultimap<Integer, Integer> target2 = this.<Integer>newWith().groupByEach(groupByEachFunction).toMutable();
Multimap<Integer, Integer> actualWithTarget = iterable.groupByEach(groupByEachFunction, target2);
assertEquals(expectedGroupByEach, actualWithTarget.toMap());
assertSame(target2, actualWithTarget);
}
@Override
@Test
default void RichIterable_aggregateBy_aggregateInPlaceBy()
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
MapIterable<String, Integer> aggregateBy = iterable.aggregateBy(
Object::toString,
() -> 0,
(integer1, integer2) -> integer1 + integer2);
assertEquals(4, aggregateBy.get("4").intValue());
assertEquals(3, aggregateBy.get("3").intValue());
assertEquals(2, aggregateBy.get("2").intValue());
assertEquals(1, aggregateBy.get("1").intValue());
MapIterable<String, AtomicInteger> aggregateInPlaceBy = iterable.aggregateInPlaceBy(
String::valueOf,
AtomicInteger::new,
AtomicInteger::addAndGet);
assertEquals(4, aggregateInPlaceBy.get("4").intValue());
assertEquals(3, aggregateInPlaceBy.get("3").intValue());
assertEquals(2, aggregateInPlaceBy.get("2").intValue());
assertEquals(1, aggregateInPlaceBy.get("1").intValue());
}
@Override
@Test
default void RichIterable_sumOfPrimitive()
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
Assert.assertEquals(10.0f, iterable.sumOfFloat(Integer::floatValue), 0.001);
Assert.assertEquals(10.0, iterable.sumOfDouble(Integer::doubleValue), 0.001);
Assert.assertEquals(10, iterable.sumOfInt(integer -> integer));
Assert.assertEquals(10L, iterable.sumOfLong(Integer::longValue));
}
@Override
default void RichIterable_sumByPrimitive()
{
RichIterable<String> iterable = this.newWith("4", "3", "2", "1");
assertEquals(
ObjectLongMaps.immutable.with(0, 6L).newWithKeyValue(1, 4L),
iterable.sumByInt(s -> Integer.parseInt(s) % 2, Integer::parseInt));
assertEquals(
ObjectLongMaps.immutable.with(0, 6L).newWithKeyValue(1, 4L),
iterable.sumByLong(s -> Integer.parseInt(s) % 2, Long::parseLong));
assertEquals(
ObjectDoubleMaps.immutable.with(0, 6.0d).newWithKeyValue(1, 4.0d),
iterable.sumByDouble(s -> Integer.parseInt(s) % 2, Double::parseDouble));
assertEquals(
ObjectDoubleMaps.immutable.with(0, 6.0d).newWithKeyValue(1, 4.0d),
iterable.sumByFloat(s -> Integer.parseInt(s) % 2, Float::parseFloat));
}
@Override
@Test
default void RichIterable_summarizePrimitive()
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
Assert.assertEquals(10.0f, iterable.summarizeFloat(Integer::floatValue).getSum(), 0.001);
Assert.assertEquals(10.0, iterable.summarizeDouble(Integer::doubleValue).getSum(), 0.001);
Assert.assertEquals(10, iterable.summarizeInt(Integer::intValue).getSum());
Assert.assertEquals(10L, iterable.summarizeLong(Integer::longValue).getSum());
}
@Override
@Test
default void RichIterable_reduceInPlaceCollector()
{
RichIterable<Integer> iterable = this.newWith(1, 2, 3);
MutableBag<Integer> result = iterable.reduceInPlace(Collectors.toCollection(Bags.mutable::empty));
Assert.assertEquals(Bags.immutable.with(1, 2, 3), result);
String joining = result.collect(Object::toString).reduceInPlace(Collectors.joining(","));
Assert.assertEquals(result.collect(Object::toString).makeString(","), joining);
String joining2 = result.toImmutable().collect(Object::toString).reduceInPlace(Collectors.joining(","));
Assert.assertEquals(result.toImmutable().collect(Object::toString).makeString(","), joining2);
String joining3 = result.asLazy().collect(Object::toString).reduceInPlace(Collectors.joining(","));
Assert.assertEquals(result.asLazy().collect(Object::toString).makeString(","), joining3);
Map<Boolean, List<Integer>> expected =
iterable.toList().stream().collect(Collectors.partitioningBy(each -> each % 2 == 0));
Map<Boolean, List<Integer>> actual =
iterable.reduceInPlace(Collectors.partitioningBy(each -> each % 2 == 0));
Assert.assertEquals(expected, actual);
Map<String, List<Integer>> groupByJDK =
iterable.toList().stream().collect(Collectors.groupingBy(Object::toString));
Map<String, List<Integer>> groupByEC =
result.reduceInPlace(Collectors.groupingBy(Object::toString));
Assert.assertEquals(groupByJDK, groupByEC);
}
@Override
@Test
default void RichIterable_reduceInPlace()
{
RichIterable<Integer> iterable = this.newWith(1, 2, 3);
MutableBag<Integer> result =
iterable.reduceInPlace(Bags.mutable::empty, MutableBag::add);
Assert.assertEquals(Bags.immutable.with(1, 2, 3), result);
String joining =
result.collect(Object::toString).reduceInPlace(StringBuilder::new, StringBuilder::append).toString();
Assert.assertEquals(result.collect(Object::toString).makeString(""), joining);
ImmutableBag<Integer> immutableBag = result.toImmutable();
String joining2 =
immutableBag.collect(Object::toString).reduceInPlace(StringBuilder::new, StringBuilder::append).toString();
Assert.assertEquals(immutableBag.collect(Object::toString).makeString(""), joining2);
String joining3 =
result.asLazy().collect(Object::toString).reduceInPlace(StringBuilder::new, StringBuilder::append).toString();
Assert.assertEquals(result.asLazy().collect(Object::toString).makeString(""), joining3);
int atomicAdd = iterable.reduceInPlace(AtomicInteger::new, AtomicInteger::addAndGet).get();
Assert.assertEquals(6, atomicAdd);
}
@Override
@Test
default void RichIterable_reduceOptional()
{
RichIterable<Integer> iterable = this.newWith(1, 2, 3);
Optional<Integer> result =
iterable.reduce(Integer::sum);
Assert.assertEquals(6, result.get().intValue());
Optional<Integer> max =
iterable.reduce(Integer::max);
Assert.assertEquals(3, max.get().intValue());
Optional<Integer> min =
iterable.reduce(Integer::min);
Assert.assertEquals(1, min.get().intValue());
RichIterable<Integer> iterableEmpty = this.newWith();
Optional<Integer> resultEmpty =
iterableEmpty.reduce(Integer::sum);
Assert.assertFalse(resultEmpty.isPresent());
}
@Override
@Test
default void RichIterable_injectInto()
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
assertEquals(Integer.valueOf(11), iterable.injectInto(1, new Function2<Integer, Integer, Integer>()
{
private static final long serialVersionUID = 1L;
public Integer value(Integer argument1, Integer argument2)
{
return argument1 + argument2;
}
}));
assertEquals(Integer.valueOf(10), iterable.injectInto(0, new Function2<Integer, Integer, Integer>()
{
private static final long serialVersionUID = 1L;
public Integer value(Integer argument1, Integer argument2)
{
return argument1 + argument2;
}
}));
}
@Override
@Test
default void RichIterable_injectInto_primitive()
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
Assert.assertEquals(11, iterable.injectInto(1, AddFunction.INTEGER_TO_INT));
Assert.assertEquals(10, iterable.injectInto(0, AddFunction.INTEGER_TO_INT));
Assert.assertEquals(11L, iterable.injectInto(1, AddFunction.INTEGER_TO_LONG));
Assert.assertEquals(10L, iterable.injectInto(0, AddFunction.INTEGER_TO_LONG));
Assert.assertEquals(11.0d, iterable.injectInto(1, AddFunction.INTEGER_TO_DOUBLE), 0.001);
Assert.assertEquals(10.0d, iterable.injectInto(0, AddFunction.INTEGER_TO_DOUBLE), 0.001);
Assert.assertEquals(11.0f, iterable.injectInto(1, AddFunction.INTEGER_TO_FLOAT), 0.001f);
Assert.assertEquals(10.0f, iterable.injectInto(0, AddFunction.INTEGER_TO_FLOAT), 0.001f);
}
@Override
@Test
default void RichIterable_makeString_appendString()
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
assertEquals("4, 3, 2, 1", iterable.makeString());
assertEquals("4/3/2/1", iterable.makeString("/"));
assertEquals("[4/3/2/1]", iterable.makeString("[", "/", "]"));
StringBuilder stringBuilder1 = new StringBuilder();
iterable.appendString(stringBuilder1);
assertEquals("4, 3, 2, 1", stringBuilder1.toString());
StringBuilder stringBuilder2 = new StringBuilder();
iterable.appendString(stringBuilder2, "/");
assertEquals("4/3/2/1", stringBuilder2.toString());
StringBuilder stringBuilder3 = new StringBuilder();
iterable.appendString(stringBuilder3, "[", "/", "]");
assertEquals("[4/3/2/1]", stringBuilder3.toString());
}
@Override
@Test
default void RichIterable_toList()
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
assertEquals(
Lists.immutable.with(4, 3, 2, 1),
iterable.toList());
MutableList<Integer> target = Lists.mutable.empty();
iterable.each(target::add);
assertEquals(
target,
iterable.toList());
}
@Override
@Test
default void RichIterable_into()
{
assertEquals(
Lists.immutable.with(4, 3, 2, 1),
this.newWith(4, 3, 2, 1).into(Lists.mutable.empty()));
}
@Override
@Test
default void RichIterable_toSortedList()
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
assertEquals(
Lists.immutable.with(1, 2, 3, 4),
iterable.toSortedList());
assertEquals(
Lists.immutable.with(4, 3, 2, 1),
iterable.toSortedList(Comparators.reverseNaturalOrder()));
assertEquals(
Lists.immutable.with(1, 2, 3, 4),
iterable.toSortedListBy(Functions.identity()));
assertEquals(
Lists.immutable.with(4, 3, 2, 1),
iterable.toSortedListBy(each -> each * -1));
}
@Override
@Test
default void RichIterable_toSet()
{
assertEquals(
Sets.immutable.with(4, 3, 2, 1),
this.newWith(4, 3, 2, 1).toSet());
}
@Override
@Test
default void RichIterable_toSortedSet()
{
RichIterable<Integer> iterable = this.newWith(4, 3, 2, 1);
assertEquals(
SortedSets.immutable.with(1, 2, 3, 4),
iterable.toSortedSet());
assertEquals(
SortedSets.immutable.with(Comparators.reverseNaturalOrder(), 4, 3, 2, 1),
iterable.toSortedSet(Comparators.reverseNaturalOrder()));
assertEquals(
SortedSets.immutable.with(Comparators.byFunction(Functions.identity()), 1, 2, 3, 4),
iterable.toSortedSetBy(Functions.identity()));
assertEquals(
SortedSets.immutable.with(Comparators.byFunction((Integer each) -> each * -1), 4, 3, 2, 1),
iterable.toSortedSetBy(each -> each * -1));
}
@Override
@Test
default void RichIterable_toBag()
{
assertEquals(