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SetsTest.java
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SetsTest.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.impl.factory;
import java.lang.reflect.Field;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import java.util.stream.IntStream;
import java.util.stream.Stream;
import org.eclipse.collections.api.bag.MutableBag;
import org.eclipse.collections.api.block.function.Function2;
import org.eclipse.collections.api.block.procedure.Procedure2;
import org.eclipse.collections.api.factory.set.FixedSizeSetFactory;
import org.eclipse.collections.api.factory.set.ImmutableSetFactory;
import org.eclipse.collections.api.factory.set.MultiReaderSetFactory;
import org.eclipse.collections.api.factory.set.MutableSetFactory;
import org.eclipse.collections.api.list.MutableList;
import org.eclipse.collections.api.set.FixedSizeSet;
import org.eclipse.collections.api.set.ImmutableSet;
import org.eclipse.collections.api.set.MultiReaderSet;
import org.eclipse.collections.api.set.MutableSet;
import org.eclipse.collections.api.tuple.Pair;
import org.eclipse.collections.impl.bag.mutable.HashBag;
import org.eclipse.collections.impl.list.Interval;
import org.eclipse.collections.impl.list.mutable.FastList;
import org.eclipse.collections.impl.set.mutable.MultiReaderUnifiedSet;
import org.eclipse.collections.impl.set.mutable.UnifiedSet;
import org.eclipse.collections.impl.test.Verify;
import org.eclipse.collections.impl.test.domain.Key;
import org.eclipse.collections.impl.tuple.Tuples;
import org.junit.Assert;
import org.junit.Test;
import static org.eclipse.collections.impl.factory.Iterables.mSet;
public class SetsTest
{
private final MutableList<UnifiedSet<String>> uniqueSets =
Lists.mutable.with(
this.newUnsortedSet("Tom", "Dick", "Harry", null),
this.newUnsortedSet("Jane", "Sarah", "Mary"),
this.newUnsortedSet("Fido", "Spike", "Spuds"));
private final MutableList<UnifiedSet<String>> overlappingSets =
Lists.mutable.with(
this.newUnsortedSet("Tom", "Dick", "Harry"),
this.newUnsortedSet("Larry", "Tom", "Dick"),
this.newUnsortedSet("Dick", "Larry", "Paul", null));
private final MutableList<UnifiedSet<String>> identicalSets =
Lists.mutable.with(
this.newUnsortedSet("Tom", null, "Dick", "Harry"),
this.newUnsortedSet(null, "Harry", "Tom", "Dick"),
this.newUnsortedSet("Dick", "Harry", "Tom", null));
private final MutableList<TreeSet<String>> uniqueSortedSets =
Lists.mutable.with(
this.newSortedSet("Tom", "Dick", "Harry"),
this.newSortedSet("Jane", "Sarah", "Mary"),
this.newSortedSet("Fido", "Spike", "Spuds"));
private final MutableList<TreeSet<String>> overlappingSortedSets =
Lists.mutable.with(
this.newSortedSet("Tom", "Dick", "Harry"),
this.newSortedSet("Larry", "Tom", "Dick"),
this.newSortedSet("Dick", "Larry", "Paul"));
private final MutableList<TreeSet<String>> identicalSortedSets =
Lists.mutable.with(
this.newSortedSet("Tom", "Dick", "Harry"),
this.newSortedSet("Harry", "Tom", "Dick"),
this.newSortedSet("Dick", "Harry", "Tom"));
private final MutableList<TreeSet<String>> uniqueReverseSortedSets =
Lists.mutable.with(
this.newReverseSortedSet("Tom", "Dick", "Harry"),
this.newReverseSortedSet("Jane", "Sarah", "Mary"),
this.newReverseSortedSet("Fido", "Spike", "Spuds"));
private final MutableList<TreeSet<String>> overlappingReverseSortedSets =
Lists.mutable.with(
this.newReverseSortedSet("Tom", "Dick", "Harry"),
this.newReverseSortedSet("Larry", "Tom", "Dick"),
this.newReverseSortedSet("Dick", "Larry", "Paul"));
private final MutableList<TreeSet<String>> identicalReverseSortedSets =
Lists.mutable.with(
this.newReverseSortedSet("Tom", "Dick", "Harry"),
this.newReverseSortedSet("Harry", "Tom", "Dick"),
this.newReverseSortedSet("Dick", "Harry", "Tom"));
private <E> UnifiedSet<E> newUnsortedSet(E... elements)
{
return UnifiedSet.newSetWith(elements);
}
private <E> TreeSet<E> newSortedSet(E... elements)
{
return new TreeSet<>(UnifiedSet.newSetWith(elements));
}
private <E> TreeSet<E> newReverseSortedSet(E... elements)
{
TreeSet<E> set = new TreeSet<>(Collections.reverseOrder());
set.addAll(UnifiedSet.newSetWith(elements));
return set;
}
@Test
public void unionUnique()
{
this.assertUnionProperties(
this.containsExactlyProcedure(),
Verify::assertSetsEqual,
this.uniqueSets.get(0),
this.uniqueSets.get(1),
this.uniqueSets.get(2),
"Tom", "Dick", "Harry", "Jane", "Sarah", "Mary", "Fido", "Spike", "Spuds", null);
}
@Test
public void unionUniqueSorted()
{
this.assertUnionProperties(this.containsExactlyInOrderProcedure(),
this::assertSetsEqualAndSorted,
this.uniqueSortedSets.get(0),
this.uniqueSortedSets.get(1),
this.uniqueSortedSets.get(2),
"Dick", "Fido", "Harry", "Jane", "Mary", "Sarah", "Spike", "Spuds", "Tom");
// TODO: union operations on sorted sets will not pass identity test until SortedSetAdapter is implemented
// this.assertUnionProperties(
// this.<String>containsExactlyInOrderBlock(),
// this.<String>setsEqualAndSortedBlock(),
// this.uniqueReverseSortedSets.get(0),
// this.uniqueReverseSortedSets.get(1),
// this.uniqueReverseSortedSets.get(2),
// "Tom", "Spuds", "Spike", "Sarah", "Mary", "Jane", "Harry", "Fido", "Dick");
}
@Test
public void unionOverlapping()
{
this.assertUnionProperties(this.containsExactlyProcedure(),
Verify::assertSetsEqual,
this.overlappingSets.get(0),
this.overlappingSets.get(1),
this.overlappingSets.get(2),
"Tom", "Dick", "Harry", "Larry", "Paul", null);
}
@Test
public void unionOverlappingSorted()
{
this.assertUnionProperties(this.containsExactlyInOrderProcedure(),
this::assertSetsEqualAndSorted,
this.overlappingSortedSets.get(0),
this.overlappingSortedSets.get(1),
this.overlappingSortedSets.get(2),
"Dick", "Harry", "Larry", "Paul", "Tom");
// TODO: union operations on sorted sets will not pass identity test until SortedSetAdapter is implemented
// this.assertUnionProperties(
// this.<String>containsExactlyInOrderBlock(),
// this.<String>setsEqualAndSortedBlock(),
// this.overlappingReverseSortedSets.get(0),
// this.overlappingReverseSortedSets.get(1),
// this.overlappingReverseSortedSets.get(2),
// "Tom", "Paul", "Larry", "Harry", "Dick");
}
@Test
public void unionIdentical()
{
this.assertUnionProperties(this.containsExactlyProcedure(),
Verify::assertSetsEqual,
this.identicalSets.get(0),
this.identicalSets.get(1),
this.identicalSets.get(2),
"Tom", "Dick", "Harry", null);
}
@Test
public void unionIdenticalSorted()
{
this.assertUnionProperties(this.containsExactlyInOrderProcedure(),
this::assertSetsEqualAndSorted,
this.identicalSortedSets.get(0),
this.identicalSortedSets.get(1),
this.identicalSortedSets.get(2),
"Dick", "Harry", "Tom");
// TODO: union operations on sorted sets will not pass identity test until SortedSetAdapter is implemented
// this.assertUnionProperties(
// this.<String>containsExactlyInOrderBlock(),
// this.<String>setsEqualAndSortedBlock(),
// this.identicalReverseSortedSets.get(0),
// this.identicalReverseSortedSets.get(1),
// this.identicalReverseSortedSets.get(2),
// "Tom", "Harry", "Dick");
}
@Test
public void unionAllUnique()
{
MutableSet<String> names = Sets.unionAll(this.uniqueSets.get(0), this.uniqueSets.get(1), this.uniqueSets.get(2));
Assert.assertEquals(UnifiedSet.newSetWith("Tom", "Dick", "Harry", "Jane", "Sarah", "Mary", "Fido", "Spike", "Spuds", null), names);
}
@Test
public void unionAllOverlapping()
{
MutableSet<String> names = Sets.unionAll(this.overlappingSets.get(0), this.overlappingSets.get(1), this.overlappingSets.get(2));
Assert.assertEquals(UnifiedSet.newSetWith("Tom", "Dick", "Harry", "Larry", "Paul", null), names);
}
@Test
public void unionAllIdentical()
{
MutableSet<String> names = Sets.unionAll(this.identicalSets.get(0), this.identicalSets.get(1), this.identicalSets.get(2));
Assert.assertEquals(UnifiedSet.newSetWith("Tom", "Dick", "Harry", null), names);
}
@Test
public void intersectUnique()
{
this.assertIntersectionProperties(
this.containsExactlyProcedure(),
Verify::assertSetsEqual,
this.uniqueSets.get(0),
this.uniqueSets.get(1),
this.uniqueSets.get(2));
}
@Test
public void intersectUniqueSorted()
{
this.assertIntersectionProperties(
this.containsExactlyInOrderProcedure(),
this::assertSetsEqualAndSorted,
this.uniqueSortedSets.get(0),
this.uniqueSortedSets.get(1),
this.uniqueSortedSets.get(2));
this.assertIntersectionProperties(
this.containsExactlyInOrderProcedure(),
this::assertSetsEqualAndSorted,
this.uniqueReverseSortedSets.get(0),
this.uniqueReverseSortedSets.get(1),
this.uniqueReverseSortedSets.get(2));
}
@Test
public void intersectOverlapping()
{
this.assertIntersectionProperties(
this.containsExactlyProcedure(),
Verify::assertSetsEqual,
this.overlappingSets.get(0),
this.overlappingSets.get(1),
this.overlappingSets.get(2),
"Dick");
}
@Test
public void intersectOverlappingSorted()
{
this.assertIntersectionProperties(
this.containsExactlyInOrderProcedure(),
this::assertSetsEqualAndSorted,
this.overlappingSortedSets.get(0),
this.overlappingSortedSets.get(1),
this.overlappingSortedSets.get(2),
"Dick");
this.assertIntersectionProperties(
this.containsExactlyInOrderProcedure(),
this::assertSetsEqualAndSorted,
this.overlappingReverseSortedSets.get(0),
this.overlappingReverseSortedSets.get(1),
this.overlappingReverseSortedSets.get(2),
"Dick");
}
@Test
public void intersectIdentical()
{
this.assertIntersectionProperties(this.containsExactlyProcedure(),
Verify::assertSetsEqual,
this.identicalSets.get(0),
this.identicalSets.get(1),
this.identicalSets.get(2),
"Tom", "Dick", "Harry", null);
}
@Test
public void intersectIdenticalSorted()
{
this.assertIntersectionProperties(this.containsExactlyInOrderProcedure(),
this::assertSetsEqualAndSorted,
this.identicalSortedSets.get(0),
this.identicalSortedSets.get(1),
this.identicalSortedSets.get(2),
"Dick", "Harry", "Tom");
this.assertIntersectionProperties(this.containsExactlyInOrderProcedure(),
this::assertSetsEqualAndSorted,
this.identicalReverseSortedSets.get(0),
this.identicalReverseSortedSets.get(1),
this.identicalReverseSortedSets.get(2),
"Tom", "Harry", "Dick");
}
@Test
public void intersectAllUnique()
{
MutableSet<String> names = Sets.intersectAll(this.uniqueSets.get(0), this.uniqueSets.get(1), this.uniqueSets.get(2));
Assert.assertEquals(UnifiedSet.newSetWith(), names);
}
@Test
public void intersectAllOverlapping()
{
MutableSet<String> names = Sets.intersectAll(this.overlappingSets.get(0), this.overlappingSets.get(1), this.overlappingSets.get(2));
Assert.assertEquals(UnifiedSet.newSetWith("Dick"), names);
}
@Test
public void intersectAllIdentical()
{
MutableSet<String> names = Sets.intersectAll(this.identicalSets.get(0), this.identicalSets.get(1), this.identicalSets.get(2));
Assert.assertEquals(UnifiedSet.newSetWith("Tom", "Dick", "Harry", null), names);
}
@Test
public void differenceUnique()
{
this.assertForwardAndBackward(
this.containsExactlyProcedure(),
Sets::difference,
this.uniqueSets.get(0),
this.uniqueSets.get(1),
new String[]{"Tom", "Dick", "Harry", null},
new String[]{"Jane", "Sarah", "Mary"});
}
@Test
public void differenceUniqueSorted()
{
this.assertForwardAndBackward(
this.containsExactlyInOrderProcedure(),
Sets::difference,
this.uniqueSortedSets.get(0),
this.uniqueSortedSets.get(1),
new String[]{"Dick", "Harry", "Tom"},
new String[]{"Jane", "Mary", "Sarah"});
}
@Test
public void differenceOverlapping()
{
this.assertForwardAndBackward(
this.containsExactlyProcedure(),
Sets::difference,
this.overlappingSets.get(0),
this.overlappingSets.get(1),
new String[]{"Harry"},
new String[]{"Larry"});
}
@Test
public void differenceOverlappingSorted()
{
this.assertForwardAndBackward(
this.containsExactlyInOrderProcedure(),
Sets::difference,
this.overlappingSortedSets.get(0),
this.overlappingSortedSets.get(1),
new String[]{"Harry"},
new String[]{"Larry"});
}
@Test
public void differenceIdentical()
{
this.assertForwardAndBackward(
this.containsExactlyProcedure(),
Sets::difference,
this.identicalSets.get(0),
this.identicalSets.get(1),
new String[]{},
new String[]{});
}
@Test
public void differenceIdenticalSorted()
{
this.assertForwardAndBackward(
this.containsExactlyInOrderProcedure(),
Sets::difference,
this.identicalSortedSets.get(0),
this.identicalSortedSets.get(1),
new String[]{},
new String[]{});
}
@Test
public void differenceAllUnique()
{
MutableSet<String> names = Sets.differenceAll(this.uniqueSets.get(0), this.uniqueSets.get(1), this.uniqueSets.get(2));
Assert.assertEquals(UnifiedSet.newSetWith("Harry", "Tom", "Dick", null), names);
Verify.assertSetsEqual(
names,
Sets.difference(Sets.difference(this.uniqueSets.get(0), this.uniqueSets.get(1)), this.uniqueSets.get(2)));
}
@Test
public void differenceAllOverlapping()
{
MutableSet<String> names = Sets.differenceAll(this.overlappingSets.get(0), this.overlappingSets.get(1), this.overlappingSets.get(2));
Assert.assertEquals(UnifiedSet.newSetWith("Harry"), names);
Verify.assertSetsEqual(
names,
Sets.difference(Sets.difference(this.overlappingSets.get(0), this.overlappingSets.get(1)), this.overlappingSets.get(2)));
}
@Test
public void differenceAllIdentical()
{
MutableSet<String> names = Sets.differenceAll(this.identicalSets.get(0), this.identicalSets.get(1), this.identicalSets.get(2));
Assert.assertEquals(UnifiedSet.newSetWith(), names);
Verify.assertSetsEqual(
names,
Sets.difference(Sets.difference(this.identicalSets.get(0), this.identicalSets.get(1)), this.identicalSets.get(2)));
}
@Test
public void symmetricDifferenceUnique()
{
this.assertForwardAndBackward(
this.containsExactlyProcedure(),
Sets::symmetricDifference,
this.uniqueSets.get(0),
this.uniqueSets.get(1),
new String[]{"Tom", "Dick", "Harry", "Jane", "Mary", "Sarah", null},
new String[]{"Tom", "Dick", "Harry", "Jane", "Mary", "Sarah", null});
}
@Test
public void symmetricDifferenceUniqueSorted()
{
this.assertForwardAndBackward(
this.containsExactlyInOrderProcedure(),
Sets::symmetricDifference,
this.uniqueSortedSets.get(0),
this.uniqueSortedSets.get(1),
new String[]{"Dick", "Harry", "Jane", "Mary", "Sarah", "Tom"},
new String[]{"Dick", "Harry", "Jane", "Mary", "Sarah", "Tom"});
}
@Test
public void symmetricDifferenceOverlapping()
{
this.assertForwardAndBackward(
this.containsExactlyProcedure(),
Sets::symmetricDifference,
this.overlappingSets.get(0),
this.overlappingSets.get(1),
new String[]{"Larry", "Harry"},
new String[]{"Larry", "Harry"});
}
@Test
public void symmetricDifferenceOverlappingSorted()
{
this.assertForwardAndBackward(
this.containsExactlyInOrderProcedure(),
Sets::symmetricDifference,
this.overlappingSortedSets.get(0),
this.overlappingSortedSets.get(1),
new String[]{"Harry", "Larry"},
new String[]{"Harry", "Larry"});
}
@Test
public void symmetricDifferenceIdentical()
{
this.assertForwardAndBackward(
this.containsExactlyProcedure(),
Sets::symmetricDifference,
this.identicalSets.get(0),
this.identicalSets.get(1),
new String[]{},
new String[]{});
}
@Test
public void symmetricDifferenceIdenticalSorted()
{
this.assertForwardAndBackward(
this.containsExactlyInOrderProcedure(),
Sets::symmetricDifference,
this.identicalSortedSets.get(0),
this.identicalSortedSets.get(1),
new String[]{},
new String[]{});
}
@Test
public void subsetEmpty()
{
MutableSet<String> emptySet = mSet();
MutableSet<String> singletonSet = mSet("Bertha");
Assert.assertTrue(Sets.isSubsetOf(emptySet, singletonSet));
Assert.assertFalse(Sets.isSubsetOf(singletonSet, emptySet));
}
@Test
public void subsetNotEmpty()
{
MutableSet<String> singletonSet = UnifiedSet.newSetWith("Bertha");
MutableSet<String> doubletonSet = UnifiedSet.newSetWith("Bertha", "Myra");
Assert.assertTrue(Sets.isSubsetOf(singletonSet, doubletonSet));
Assert.assertFalse(Sets.isSubsetOf(doubletonSet, singletonSet));
}
@Test
public void subsetEqual()
{
MutableSet<String> setA = UnifiedSet.newSetWith("Bertha", null, "Myra");
MutableSet<String> setB = UnifiedSet.newSetWith("Myra", "Bertha", null);
Assert.assertTrue(Sets.isSubsetOf(setA, setB));
Assert.assertTrue(Sets.isSubsetOf(setB, setA));
}
@Test
public void properSubsetEmpty()
{
MutableSet<String> emptySet = mSet();
MutableSet<String> singletonSet = UnifiedSet.newSetWith("Bertha");
Assert.assertTrue(Sets.isProperSubsetOf(emptySet, singletonSet));
Assert.assertFalse(Sets.isProperSubsetOf(singletonSet, emptySet));
}
@Test
public void properSubsetNotEmpty()
{
MutableSet<String> singletonSet = UnifiedSet.newSetWith("Bertha");
MutableSet<String> doubletonSet = UnifiedSet.newSetWith("Bertha", "Myra");
Assert.assertTrue(Sets.isProperSubsetOf(singletonSet, doubletonSet));
Assert.assertFalse(Sets.isProperSubsetOf(doubletonSet, singletonSet));
}
@Test
public void properSubsetEqual()
{
MutableSet<String> setA = UnifiedSet.newSetWith("Bertha", null, "Myra");
MutableSet<String> setB = UnifiedSet.newSetWith("Myra", "Bertha", null);
Assert.assertFalse(Sets.isProperSubsetOf(setA, setB));
Assert.assertFalse(Sets.isProperSubsetOf(setB, setA));
}
private <E> void assertUnionProperties(
Procedure2<Set<E>, E[]> setContainsProcedure,
Procedure2<Set<E>, Set<E>> setsEqualProcedure,
Set<E> setA,
Set<E> setB,
Set<E> setC,
E... elements)
{
Function2<Set<E>, Set<E>, Set<E>> union = Sets::union;
Function2<Set<E>, Set<E>, Set<E>> intersect = Sets::intersect;
this.assertCommutativeProperty(setContainsProcedure, union, setA, setB, setC, elements);
this.assertAssociativeProperty(setContainsProcedure, union, setA, setB, setC, elements);
this.assertDistributiveProperty(setsEqualProcedure, union, intersect, setA, setB, setC);
this.assertIdentityProperty(setContainsProcedure, union, setA, setB, setC, elements);
}
private <E> void assertIntersectionProperties(
Procedure2<Set<E>, E[]> setContainsProcedure,
Procedure2<Set<E>, Set<E>> setsEqualProcedure,
Set<E> setA,
Set<E> setB,
Set<E> setC,
E... elements)
{
Function2<Set<E>, Set<E>, Set<E>> intersect = Sets::intersect;
Function2<Set<E>, Set<E>, Set<E>> union = Sets::union;
this.assertCommutativeProperty(setContainsProcedure, intersect, setA, setB, setC, elements);
this.assertAssociativeProperty(setContainsProcedure, intersect, setA, setB, setC, elements);
this.assertDistributiveProperty(setsEqualProcedure, intersect, union, setA, setB, setC);
}
private <E> void assertCommutativeProperty(
Procedure2<Set<E>, E[]> setContainsProcedure,
Function2<Set<E>, Set<E>, Set<E>> function,
Set<E> setA,
Set<E> setB,
Set<E> setC,
E... elements)
{
Set<E> aXbXc = function.value(function.value(setA, setB), setC);
Set<E> aXcXb = function.value(function.value(setA, setC), setB);
Set<E> bXaXc = function.value(function.value(setB, setA), setC);
Set<E> bXcXa = function.value(function.value(setB, setC), setA);
Set<E> cXaXb = function.value(function.value(setC, setA), setB);
Set<E> cXbXa = function.value(function.value(setC, setB), setA);
this.assertAllContainExactly(setContainsProcedure, Lists.mutable.with(aXbXc, aXcXb, bXaXc, bXcXa, cXaXb, cXbXa), elements);
}
private <E> void assertAssociativeProperty(
Procedure2<Set<E>, E[]> setContainsProcedure,
Function2<Set<E>, Set<E>, Set<E>> function,
Set<E> setA,
Set<E> setB,
Set<E> setC,
E... elements)
{
setContainsProcedure.value(function.value(function.value(setA, setB), setC), elements);
setContainsProcedure.value(function.value(setA, function.value(setB, setC)), elements);
}
private <E> void assertDistributiveProperty(
Procedure2<Set<E>, Set<E>> setsEqualProcedure,
Function2<Set<E>, Set<E>, Set<E>> function1,
Function2<Set<E>, Set<E>, Set<E>> function2,
Set<E> setA,
Set<E> setB,
Set<E> setC)
{
Set<E> set1 = function1.value(setA, function2.value(setB, setC));
Set<E> set2 = function2.value(function1.value(setA, setB), function1.value(setA, setC));
// TODO: setsEqual will fail on some sorted sets until SortableSetAdapter is implemented
//setsEqualProcedure.value(set1, set2);
}
private <E> void assertIdentityProperty(
Procedure2<Set<E>, E[]> setContainsProcedure,
Function2<Set<E>, Set<E>, Set<E>> function,
Set<E> setA,
Set<E> setB,
Set<E> setC,
E... elements)
{
Set<E> aXbXc = function.value(function.value(setA, setB), setC);
Set<E> empty = new TreeSet<>();
setContainsProcedure.value(function.value(aXbXc, empty), elements);
setContainsProcedure.value(function.value(empty, aXbXc), elements);
}
private <E> void assertAllContainExactly(
Procedure2<Set<E>, E[]> setContainsProcedure,
Collection<Set<E>> sets,
E... elements)
{
for (Set<E> set : sets)
{
setContainsProcedure.value(set, elements);
}
}
private <E> void assertSetsEqualAndSorted(Set<E> setA, Set<E> setB)
{
Verify.assertSetsEqual(setA, setB);
Object[] expectedItems = setB.toArray((E[]) new Object[setB.size()]);
Assert.assertEquals(Lists.mutable.with(expectedItems), FastList.newList(setA));
}
private <E> void assertForwardAndBackward(
Procedure2<Set<E>, E[]> setContainsProcedure,
Function2<Set<E>, Set<E>, Set<E>> function,
Set<E> setA,
Set<E> setB,
E[] forwardResults,
E[] backwardResults)
{
Set<E> results1 = function.value(setA, setB);
setContainsProcedure.value(results1, forwardResults);
Set<E> results2 = function.value(setB, setA);
setContainsProcedure.value(results2, backwardResults);
}
private <E> Procedure2<Set<E>, E[]> containsExactlyProcedure()
{
return (set, elements) -> Assert.assertEquals(UnifiedSet.newSetWith(elements), set);
}
private <E> Procedure2<Set<E>, E[]> containsExactlyInOrderProcedure()
{
return (set, elements) -> Assert.assertEquals(Lists.mutable.with((Object[]) elements), FastList.newList(set));
}
@Test
public void immutables()
{
ImmutableSetFactory setFactory = Sets.immutable;
Assert.assertEquals(UnifiedSet.newSet(), setFactory.empty());
Assert.assertEquals(UnifiedSet.newSet(), setFactory.of());
Assert.assertEquals(UnifiedSet.newSet(), setFactory.with());
Verify.assertInstanceOf(ImmutableSet.class, setFactory.of());
Assert.assertEquals(UnifiedSet.newSetWith(1), setFactory.of(1));
Verify.assertInstanceOf(ImmutableSet.class, setFactory.of(1));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2), setFactory.of(1, 2));
Verify.assertInstanceOf(ImmutableSet.class, setFactory.of(1, 2));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3), setFactory.of(1, 2, 3));
Verify.assertInstanceOf(ImmutableSet.class, setFactory.of(1, 2, 3));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4), setFactory.of(1, 2, 3, 4));
Verify.assertInstanceOf(ImmutableSet.class, setFactory.of(1, 2, 3, 4));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4, 5), setFactory.of(1, 2, 3, 4, 5));
Verify.assertInstanceOf(ImmutableSet.class, setFactory.of(1, 2, 3, 4, 5));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4, 5), setFactory.ofAll(UnifiedSet.newSetWith(1, 2, 3, 4, 5)));
Verify.assertInstanceOf(ImmutableSet.class, setFactory.ofAll(UnifiedSet.newSetWith(1, 2, 3, 4, 5)));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4, 5), setFactory.fromStream(Stream.of(1, 2, 3, 4, 5)));
Verify.assertInstanceOf(ImmutableSet.class, setFactory.fromStream(Stream.of(1, 2, 3, 4, 5)));
}
@Test
public void mutables()
{
MutableSetFactory setFactory = Sets.mutable;
Assert.assertEquals(UnifiedSet.newSet(), setFactory.empty());
Assert.assertEquals(UnifiedSet.newSet(), setFactory.of());
Assert.assertEquals(UnifiedSet.newSet(), setFactory.with());
Verify.assertInstanceOf(MutableSet.class, setFactory.of());
Assert.assertEquals(UnifiedSet.newSetWith(1), setFactory.of(1));
Verify.assertInstanceOf(MutableSet.class, setFactory.of(1));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2), setFactory.of(1, 2));
Verify.assertInstanceOf(MutableSet.class, setFactory.of(1, 2));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3), setFactory.of(1, 2, 3));
Verify.assertInstanceOf(MutableSet.class, setFactory.of(1, 2, 3));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4), setFactory.of(1, 2, 3, 4));
Verify.assertInstanceOf(MutableSet.class, setFactory.of(1, 2, 3, 4));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4, 5), setFactory.of(1, 2, 3, 4, 5));
Verify.assertInstanceOf(MutableSet.class, setFactory.of(1, 2, 3, 4, 5));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4, 5), setFactory.ofAll(UnifiedSet.newSetWith(1, 2, 3, 4, 5)));
Verify.assertInstanceOf(MutableSet.class, setFactory.ofAll(UnifiedSet.newSetWith(1, 2, 3, 4, 5)));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4, 5), setFactory.fromStream(Stream.of(1, 2, 3, 4, 5)));
Verify.assertInstanceOf(MutableSet.class, setFactory.fromStream(Stream.of(1, 2, 3, 4, 5)));
}
@Test
public void fixedSize()
{
FixedSizeSetFactory setFactory = Sets.fixedSize;
Assert.assertEquals(UnifiedSet.newSet(), setFactory.of());
Assert.assertEquals(UnifiedSet.newSet(), setFactory.with());
Assert.assertEquals(UnifiedSet.newSet(), setFactory.empty());
Verify.assertInstanceOf(FixedSizeSet.class, setFactory.of());
Verify.assertInstanceOf(FixedSizeSet.class, setFactory.with());
Verify.assertInstanceOf(FixedSizeSet.class, setFactory.empty());
Assert.assertEquals(UnifiedSet.newSetWith(1), setFactory.of(1));
Verify.assertInstanceOf(FixedSizeSet.class, setFactory.of(1));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2), setFactory.of(1, 2));
Verify.assertInstanceOf(FixedSizeSet.class, setFactory.of(1, 2));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3), setFactory.of(1, 2, 3));
Verify.assertInstanceOf(FixedSizeSet.class, setFactory.of(1, 2, 3));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4), setFactory.of(1, 2, 3, 4));
Verify.assertInstanceOf(FixedSizeSet.class, setFactory.of(1, 2, 3, 4));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4), setFactory.ofAll(Sets.mutable.of(1, 2, 3, 4)));
Verify.assertInstanceOf(FixedSizeSet.class, setFactory.ofAll(Sets.mutable.of(1, 2, 3, 4)));
Assert.assertEquals(UnifiedSet.newSetWith(1, 2, 3, 4), setFactory.fromStream(Stream.of(1, 2, 3, 4)));
Verify.assertInstanceOf(FixedSizeSet.class, setFactory.fromStream(Stream.of(1, 2, 3, 4)));
}
@Test
public void multiReader()
{
this.testMultiReaderApi(Sets.multiReader);
this.testMultiReaderApi(org.eclipse.collections.api.factory.Sets.multiReader);
}
private void testMultiReaderApi(MultiReaderSetFactory setFactory)
{
Assert.assertEquals(MultiReaderUnifiedSet.newSet(), setFactory.of());
Verify.assertInstanceOf(MultiReaderSet.class, setFactory.of());
Assert.assertEquals(MultiReaderUnifiedSet.newSet(), setFactory.with());
Verify.assertInstanceOf(MultiReaderSet.class, setFactory.with());
Assert.assertEquals(MultiReaderUnifiedSet.newSet(), setFactory.ofInitialCapacity(1));
Verify.assertInstanceOf(MultiReaderSet.class, setFactory.ofInitialCapacity(1));
Assert.assertThrows(IllegalArgumentException.class, () -> setFactory.ofInitialCapacity(-1));
Assert.assertEquals(MultiReaderUnifiedSet.newSetWith(1), setFactory.of(1));
Verify.assertInstanceOf(MultiReaderSet.class, setFactory.of(1));
Assert.assertEquals(MultiReaderUnifiedSet.newSetWith(1, 2, 3), setFactory.ofAll(UnifiedSet.newSetWith(1, 2, 3)));
Verify.assertInstanceOf(MultiReaderSet.class, setFactory.ofAll(UnifiedSet.newSetWith(1, 2, 3)));
Assert.assertEquals(MultiReaderUnifiedSet.newSetWith(1, 2, 3), setFactory.fromStream(Stream.of(1, 2, 3)));
Verify.assertInstanceOf(MultiReaderSet.class, setFactory.fromStream(Stream.of(1, 2, 3)));
}
@Test
public void powerSet()
{
MutableSet<Integer> set = UnifiedSet.newSetWith(1, 2, 3);
MutableSet<MutableSet<Integer>> expectedPowerSet = UnifiedSet.newSetWith(
UnifiedSet.newSet(),
UnifiedSet.newSetWith(1),
UnifiedSet.newSetWith(2),
UnifiedSet.newSetWith(3),
UnifiedSet.newSetWith(1, 2),
UnifiedSet.newSetWith(1, 3),
UnifiedSet.newSetWith(2, 3),
UnifiedSet.newSetWith(1, 2, 3));
Assert.assertEquals(expectedPowerSet, Sets.powerSet(set));
}
@Test
public void powerSet_empty()
{
Assert.assertEquals(
UnifiedSet.newSetWith(UnifiedSet.newSet()),
Sets.powerSet(UnifiedSet.newSet()));
}
@Test
public void cartesianProduct()
{
MutableSet<Integer> set1 = Sets.mutable.with(1, 2);
MutableSet<Integer> set2 = Sets.mutable.with(2, 3, 4);
MutableBag<Pair<Integer, Integer>> expectedCartesianProduct1 = Bags.mutable.of(
Tuples.pair(1, 2),
Tuples.pair(2, 2),
Tuples.pair(1, 3),
Tuples.pair(2, 3),
Tuples.pair(1, 4),
Tuples.pair(2, 4));
Assert.assertEquals(expectedCartesianProduct1, Sets.cartesianProduct(set1, set2).toBag());
MutableBag<Pair<Integer, Integer>> expectedCartesianProduct2 = Bags.mutable.of(
Tuples.pair(2, 1),
Tuples.pair(3, 1),
Tuples.pair(4, 1),
Tuples.pair(2, 2),
Tuples.pair(3, 2),
Tuples.pair(4, 2));
Assert.assertEquals(expectedCartesianProduct2, Sets.cartesianProduct(set2, set1).toBag());
}
@Test
public void cartesianProductSameElements()
{
MutableSet<Integer> set1 = Sets.mutable.with(1, 2);
MutableSet<Integer> set2 = Sets.mutable.with(1, 2);
MutableBag<Pair<Integer, Integer>> expectedCartesianProduct = Bags.mutable.of(
Tuples.pair(1, 1),
Tuples.pair(1, 2),
Tuples.pair(2, 1),
Tuples.pair(2, 2));
Assert.assertEquals(expectedCartesianProduct, Sets.cartesianProduct(set1, set2).toBag());
}
@Test
public void cartesianProductWithFunction()
{
MutableSet<Integer> set1 = Sets.mutable.with(1, 2);
MutableSet<Integer> set2 = Sets.mutable.with(2, 3, 4);
MutableBag<Pair<Integer, Integer>> expectedCartesianProduct = Bags.mutable.of(
Tuples.pair(1, 2),
Tuples.pair(2, 2),
Tuples.pair(1, 3),
Tuples.pair(2, 3),
Tuples.pair(1, 4),
Tuples.pair(2, 4));
Assert.assertEquals(expectedCartesianProduct, Sets.cartesianProduct(set1, set2, Tuples::pair).toBag());
MutableBag<List<Integer>> expectedCartesianProduct2 = Bags.mutable.of(
Lists.mutable.with(2, 1),
Lists.mutable.with(3, 1),
Lists.mutable.with(4, 1),
Lists.mutable.with(2, 2),
Lists.mutable.with(3, 2),
Lists.mutable.with(4, 2));
Assert.assertEquals(
expectedCartesianProduct2,
Sets.cartesianProduct(set2, set1, (one, two) -> Lists.mutable.with(one, two)).toBag());
}
@Test
public void cartesianProduct_empty()
{
Assert.assertEquals(
Bags.mutable.of(),
HashBag.newBag(Sets.cartesianProduct(
Sets.mutable.with(1, 2),
UnifiedSet.newSet())));
}
@Test
public void castToSet()
{
Set<Object> set = Sets.immutable.of().castToSet();
Assert.assertNotNull(set);
Assert.assertSame(Sets.immutable.of(), set);
}
@Test
public void copySet()
{
Verify.assertInstanceOf(ImmutableSet.class, Sets.immutable.ofAll(Sets.fixedSize.of()));
MutableSet<Integer> set = Sets.fixedSize.of(1);
ImmutableSet<Integer> immutableSet = set.toImmutable();
Verify.assertInstanceOf(ImmutableSet.class, Sets.immutable.ofAll(set));
Verify.assertInstanceOf(ImmutableSet.class, Sets.immutable.ofAll(Sets.mutable.with(1, 2, 3, 4, 5)));
Assert.assertSame(Sets.immutable.ofAll(immutableSet.castToSet()), immutableSet);
}
@Test
public void ofAllImmutableSet()
{
for (int i = 1; i <= 5; i++)
{
Interval interval = Interval.oneTo(i);
Verify.assertEqualsAndHashCode(UnifiedSet.newSet(interval), Sets.immutable.ofAll(interval));
}
}
@Test
public void ofAllMutableSet()
{
for (int i = 1; i <= 5; i++)
{
Interval interval = Interval.oneTo(i);
Verify.assertEqualsAndHashCode(UnifiedSet.newSet(interval), Sets.mutable.ofAll(interval));
Stream<Integer> stream = IntStream.rangeClosed(1, i).boxed();
Verify.assertEqualsAndHashCode(UnifiedSet.newSet(interval), Sets.mutable.fromStream(stream));
}
}
@Test
public void ofAllFixedSizeSet()
{
for (int i = 1; i <= 5; i++)
{
Interval interval = Interval.oneTo(i);
Verify.assertEqualsAndHashCode(UnifiedSet.newSet(interval), Sets.fixedSize.ofAll(interval));
Stream<Integer> stream = IntStream.rangeClosed(1, i).boxed();
Verify.assertEqualsAndHashCode(UnifiedSet.newSet(interval), Sets.fixedSize.fromStream(stream));
}
}
@Test
public void emptySet()
{
Assert.assertTrue(Sets.immutable.empty().isEmpty());
Assert.assertSame(Sets.immutable.empty(), Sets.immutable.empty());
Verify.assertPostSerializedIdentity(Sets.immutable.empty());
}
@Test
public void newSetWith()
{
Assert.assertSame(Sets.immutable.empty(), Sets.immutable.of(Sets.immutable.empty().toArray()));
Verify.assertSize(1, Sets.immutable.of(1).castToSet());
Verify.assertSize(1, Sets.immutable.of(1, 1).castToSet());
Verify.assertSize(1, Sets.immutable.of(1, 1, 1).castToSet());
Verify.assertSize(1, Sets.immutable.of(1, 1, 1, 1).castToSet());
Verify.assertSize(1, Sets.immutable.of(1, 1, 1, 1, 1).castToSet());
Verify.assertSize(2, Sets.immutable.of(1, 1, 1, 1, 2).castToSet());
Verify.assertSize(2, Sets.immutable.of(2, 1, 1, 1, 1).castToSet());
Verify.assertSize(2, Sets.immutable.of(1, 2, 1, 1, 1).castToSet());
Verify.assertSize(2, Sets.immutable.of(1, 1, 2, 1, 1).castToSet());
Verify.assertSize(2, Sets.immutable.of(1, 1, 1, 2, 1).castToSet());
Verify.assertSize(2, Sets.immutable.of(1, 1, 1, 2).castToSet());
Verify.assertSize(2, Sets.immutable.of(2, 1, 1, 1).castToSet());
Verify.assertSize(2, Sets.immutable.of(1, 2, 1, 1).castToSet());
Verify.assertSize(2, Sets.immutable.of(1, 1, 2, 1).castToSet());
Verify.assertSize(2, Sets.immutable.of(1, 1, 2).castToSet());
Verify.assertSize(2, Sets.immutable.of(2, 1, 1).castToSet());
Verify.assertSize(2, Sets.immutable.of(1, 2, 1).castToSet());
Verify.assertSize(2, Sets.immutable.of(1, 2).castToSet());
Verify.assertSize(3, Sets.immutable.of(1, 2, 3).castToSet());
Verify.assertSize(3, Sets.immutable.of(1, 2, 3, 1).castToSet());
Verify.assertSize(3, Sets.immutable.of(2, 1, 3, 1).castToSet());
Verify.assertSize(3, Sets.immutable.of(2, 3, 1, 1).castToSet());
Verify.assertSize(3, Sets.immutable.of(2, 1, 1, 3).castToSet());
Verify.assertSize(3, Sets.immutable.of(1, 1, 2, 3).castToSet());
Verify.assertSize(4, Sets.immutable.of(1, 2, 3, 4).castToSet());
Verify.assertSize(4, Sets.immutable.of(1, 2, 3, 4, 1).castToSet());
}
@Test
public void setKeyPreservation()
{
Key key = new Key("key");
Key duplicateKey1 = new Key("key");
ImmutableSet<Key> set1 = Sets.immutable.of(key, duplicateKey1);
Verify.assertSize(1, set1);
Verify.assertContains(key, set1);
Assert.assertSame(key, set1.getFirst());
Key duplicateKey2 = new Key("key");