48 lines
1.5 KiB
Java
48 lines
1.5 KiB
Java
package com.baeldung.map.convert;
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import org.apache.commons.collections4.MapUtils;
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import org.junit.Assert;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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import java.util.HashMap;
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import java.util.Map;
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public class MapToStringUnitTest {
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private Map<Integer, String> wordsByKey = new HashMap<>();
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@BeforeEach
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public void setup() {
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wordsByKey.clear();
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wordsByKey.put(1, "one");
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wordsByKey.put(2, "two");
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wordsByKey.put(3, "three");
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wordsByKey.put(4, "four");
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}
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@Test
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public void givenMap_WhenUsingIteration_ThenResultingMapIsCorrect() {
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String mapAsString = MapToString.convertWithIteration(wordsByKey);
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Assert.assertEquals("{1=one, 2=two, 3=three, 4=four}", mapAsString);
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}
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@Test
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public void givenMap_WhenUsingStream_ThenResultingMapIsCorrect() {
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String mapAsString = MapToString.convertWithStream(wordsByKey);
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Assert.assertEquals("{1=one, 2=two, 3=three, 4=four}", mapAsString);
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}
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@Test
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public void givenMap_WhenUsingGuava_ThenResultingMapIsCorrect() {
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String mapAsString = MapToString.convertWithGuava(wordsByKey);
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Assert.assertEquals("1=one,2=two,3=three,4=four", mapAsString);
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}
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@Test
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public void givenMap_WhenUsingApache_ThenResultingMapIsCorrect() {
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String mapAsString = MapToString.convertWithApache(wordsByKey);
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Assert.assertEquals("{1=one, 2=two, 3=three, 4=four}", mapAsString);
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MapUtils.debugPrint(System.out, "Map as String", wordsByKey);
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}
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} |