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83 lines
2.5 KiB
83 lines
2.5 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.internal;
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import static com.google.common.truth.Truth.assertThat;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import java.util.concurrent.atomic.AtomicInteger;
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import javax.inject.Provider;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.rules.ExpectedException;
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import org.junit.runner.RunWith;
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import org.junit.runners.JUnit4;
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@RunWith(JUnit4.class)
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@SuppressWarnings("unchecked")
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public class MapProviderFactoryTest {
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@Rule
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public ExpectedException thrown = ExpectedException.none();
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@Test
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public void nullKey() {
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thrown.expect(NullPointerException.class);
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MapProviderFactory.<String, Integer>builder(1).put(null, incrementingIntegerProvider(1));
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}
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@Test
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public void nullValue() {
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thrown.expect(NullPointerException.class);
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MapProviderFactory.<String, Integer>builder(1).put("Hello", null);
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}
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@Test
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public void iterationOrder() {
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Provider<Integer> p1 = incrementingIntegerProvider(10);
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Provider<Integer> p2 = incrementingIntegerProvider(20);
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Provider<Integer> p3 = incrementingIntegerProvider(30);
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Provider<Integer> p4 = incrementingIntegerProvider(40);
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Provider<Integer> p5 = incrementingIntegerProvider(50);
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Factory<Map<String, Provider<Integer>>> factory = MapProviderFactory
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.<String, Integer>builder(4)
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.put("two", p2)
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.put("one", p1)
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.put("three", p3)
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.put("one", p5)
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.put("four", p4)
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.build();
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Map<String, Provider<Integer>> expectedMap = new LinkedHashMap<>();
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expectedMap.put("two", p2);
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expectedMap.put("one", p1);
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expectedMap.put("three", p3);
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expectedMap.put("one", p5);
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expectedMap.put("four", p4);
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assertThat(factory.get().entrySet())
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.containsExactlyElementsIn(expectedMap.entrySet())
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.inOrder();
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}
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private static Provider<Integer> incrementingIntegerProvider(int seed) {
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return new AtomicInteger(seed)::getAndIncrement;
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}
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}
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