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backing-collections/src/test/java/com/selectivem/collections/UnmodifiableSetImplTest.java
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| /* | ||
| * Copyright 2024 Nils Bandener | ||
| * | ||
| * 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 com.selectivem.collections; | ||
|
|
||
| import java.util.Arrays; | ||
| import java.util.Collection; | ||
| import java.util.HashSet; | ||
| import java.util.Iterator; | ||
| import java.util.Set; | ||
| import java.util.function.Consumer; | ||
| import java.util.stream.Stream; | ||
| import org.junit.Assert; | ||
| import org.junit.Test; | ||
|
|
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| public class UnmodifiableSetImplTest { | ||
| @Test(expected = UnsupportedOperationException.class) | ||
| public void add() { | ||
| ConcreteUnmodifiableSetImpl.of("a", "b").add("x"); | ||
| } | ||
|
|
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| @Test(expected = UnsupportedOperationException.class) | ||
| public void addAll() { | ||
| ConcreteUnmodifiableSetImpl.of("a", "b").addAll(Arrays.asList("x")); | ||
| } | ||
|
|
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| @Test(expected = UnsupportedOperationException.class) | ||
| public void clear() { | ||
| ConcreteUnmodifiableSetImpl.of("a", "b").clear(); | ||
| } | ||
|
|
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| @Test(expected = UnsupportedOperationException.class) | ||
| public void remove() { | ||
| ConcreteUnmodifiableSetImpl.of("a", "b").remove("x"); | ||
| } | ||
|
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| @Test(expected = UnsupportedOperationException.class) | ||
| public void removeAll() { | ||
| ConcreteUnmodifiableSetImpl.of("a", "b").removeAll(Arrays.asList("x")); | ||
| } | ||
|
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| @Test(expected = UnsupportedOperationException.class) | ||
| public void retainAll() { | ||
| ConcreteUnmodifiableSetImpl.of("a", "b").retainAll(Arrays.asList("x")); | ||
| } | ||
|
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| @Test | ||
| public void containsAny() { | ||
| ConcreteUnmodifiableSetImpl<String> subject = ConcreteUnmodifiableSetImpl.of("a", "b"); | ||
| Assert.assertTrue(subject.containsAny(Arrays.asList("a"))); | ||
| Assert.assertTrue(subject.containsAny(Arrays.asList("b", "a"))); | ||
| Assert.assertTrue(subject.containsAny(Arrays.asList("c", "a"))); | ||
| Assert.assertFalse(subject.containsAny(Arrays.asList("c"))); | ||
| } | ||
|
|
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| static class ConcreteUnmodifiableSetImpl<E> extends UnmodifiableSetImpl<E> { | ||
| private final Set<E> delegate = new HashSet<>(); | ||
|
|
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| ConcreteUnmodifiableSetImpl(Collection<E> elements) { | ||
| this.delegate.addAll(elements); | ||
| } | ||
|
|
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| @Override | ||
| public int size() { | ||
| return delegate.size(); | ||
| } | ||
|
|
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| @Override | ||
| public boolean isEmpty() { | ||
| return delegate.isEmpty(); | ||
| } | ||
|
|
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| @Override | ||
| public boolean contains(Object o) { | ||
| return delegate.contains(o); | ||
| } | ||
|
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| @Override | ||
| public Iterator<E> iterator() { | ||
| return delegate.iterator(); | ||
| } | ||
|
|
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| @Override | ||
| public Stream<E> stream() { | ||
| return delegate.stream(); | ||
| } | ||
|
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| @Override | ||
| public Stream<E> parallelStream() { | ||
| return delegate.parallelStream(); | ||
| } | ||
|
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| @Override | ||
| public void forEach(Consumer<? super E> action) { | ||
| delegate.forEach(action); | ||
| } | ||
|
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| static <E> ConcreteUnmodifiableSetImpl<E> of(E... elements) { | ||
| return new ConcreteUnmodifiableSetImpl<>(Arrays.asList(elements)); | ||
| } | ||
| } | ||
| } |
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