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95 lines
3.1 KiB
95 lines
3.1 KiB
/*
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* Copyright (C) 2014 The Dagger Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dagger.producers.internal;
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import static com.google.common.truth.Truth.assertThat;
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import static org.junit.Assert.fail;
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import com.google.common.collect.ImmutableSet;
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import com.google.common.util.concurrent.ListenableFuture;
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import dagger.producers.Producer;
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import dagger.producers.Producers;
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import java.util.Collections;
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import java.util.Set;
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import java.util.concurrent.ExecutionException;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.junit.runners.JUnit4;
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/**
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* Tests {@link SetProducer}.
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*/
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@RunWith(JUnit4.class)
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public class SetProducerTest {
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@Test
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public void success() throws Exception {
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Producer<Set<Integer>> producer =
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SetProducer.<Integer>builder(1, 1)
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.addProducer(Producers.immediateProducer(1))
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.addCollectionProducer(Producers.<Set<Integer>>immediateProducer(ImmutableSet.of(5, 7)))
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.build();
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assertThat(producer.get().get()).containsExactly(1, 5, 7);
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}
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@Test
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public void delegateNpe() throws Exception {
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Producer<Set<Integer>> producer =
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SetProducer.<Integer>builder(1, 0)
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.addProducer(Producers.<Integer>immediateProducer(null))
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.build();
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ListenableFuture<Set<Integer>> future = producer.get();
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try {
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future.get();
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fail();
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} catch (ExecutionException e) {
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assertThat(e).hasCauseThat().isInstanceOf(NullPointerException.class);
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}
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}
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@Test
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public void delegateSetNpe() throws Exception {
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Producer<Set<Integer>> producer =
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SetProducer.<Integer>builder(0, 1)
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.addCollectionProducer(Producers.<Set<Integer>>immediateProducer(null))
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.build();
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ListenableFuture<Set<Integer>> future = producer.get();
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try {
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future.get();
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fail();
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} catch (ExecutionException e) {
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assertThat(e).hasCauseThat().isInstanceOf(NullPointerException.class);
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}
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}
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@Test
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public void delegateElementNpe() throws Exception {
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Producer<Set<Integer>> producer =
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SetProducer.<Integer>builder(0, 2)
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.addCollectionProducer(Producers.<Set<Integer>>immediateProducer(ImmutableSet.of(1, 2)))
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.addCollectionProducer(
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Producers.<Set<Integer>>immediateProducer(Collections.<Integer>singleton(null)))
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.build();
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ListenableFuture<Set<Integer>> future = producer.get();
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try {
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future.get();
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fail();
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} catch (ExecutionException e) {
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assertThat(e).hasCauseThat().isInstanceOf(NullPointerException.class);
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}
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}
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}
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