119 lines
4.2 KiB
Java
119 lines
4.2 KiB
Java
package com.baeldung.javatuples;
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import org.javatuples.KeyValue;
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import org.javatuples.LabelValue;
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import org.javatuples.Pair;
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import org.javatuples.Quartet;
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import org.javatuples.Triplet;
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import org.javatuples.Unit;
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import org.junit.Test;
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import java.util.Arrays;
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import java.util.List;
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import static org.assertj.core.api.Assertions.assertThat;
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public class JavaTuplesUnitTest {
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@SuppressWarnings("unused")
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@Test
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public void whenCreatingTuples_thenCreateTuples() {
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Pair<String, Integer> pair = new Pair<String, Integer>("This is a pair", 55);
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Triplet<String, Integer, Double> triplet = Triplet.with("hello", 23, 33.2);
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List<String> collectionOfNames = Arrays.asList("john", "doe", "anne", "alex");
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Quartet<String, String, String, String> quartet = Quartet.fromCollection(collectionOfNames);
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Pair<String, String> pairFromList = Pair.fromIterable(collectionOfNames, 2);
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String[] names = new String[]{"john", "doe", "anne"};
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Triplet<String, String, String> triplet2 = Triplet.fromArray(names);
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}
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@Test
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public void whenGetValuexFromTuples_thenRetriveValueWithType() {
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Quartet<String, Double, Integer, String> quartet = Quartet.with("john", 72.5, 32, "1051 SW");
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String name = quartet.getValue0();
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Integer age = quartet.getValue2();
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assertThat(name).isEqualTo("john");
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assertThat(age).isEqualTo(32);
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}
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@Test
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public void whenGetKeyValue_thenGetKeyValue() {
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KeyValue<Integer, String> keyValue = KeyValue.with(5, "F");
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Integer key = keyValue.getKey();
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String value = keyValue.getValue();
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assertThat(key).isEqualTo(5);
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assertThat(value).isEqualTo("F");
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}
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@Test
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public void whenGetLabelValue_thenGetLabelValue() {
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LabelValue<Integer, String> labelValue = LabelValue.with(5, "F");
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Integer key = labelValue.getLabel();
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String value = labelValue.getValue();
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assertThat(key).isEqualTo(5);
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assertThat(value).isEqualTo("F");
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}
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@Test
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public void whenGetValueFromTuples_thenRetriveValueWithoutType() {
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Quartet<String, Double, Integer, String> quartet = Quartet.with("john", 72.5, 32, "1051 SW");
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String name = (String) quartet.getValue(0);
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Integer age = (Integer) quartet.getValue(2);
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assertThat(name).isEqualTo("john");
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assertThat(age).isEqualTo(32);
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}
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@Test
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public void whenSetValueInTuple_thenGetANewTuple() {
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Pair<String, Integer> john = Pair.with("john", 32);
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Pair<String, Integer> alex = john.setAt0("alex");
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assertThat(john.toString()).isNotEqualTo(alex.toString());
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}
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@Test
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public void whenAddNewElement_thenCreateNewTuple() {
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Pair<String, Integer> pair1 = Pair.with("john", 32);
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Triplet<String, Integer, String> triplet1 = pair1.add("1051 SW");
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assertThat(triplet1.contains("john"));
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assertThat(triplet1.contains(32));
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assertThat(triplet1.contains("1051 SW"));
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Pair<String, Integer> pair2 = Pair.with("alex", 45);
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Quartet<String, Integer, String, Integer> quartet2 = pair1.add(pair2);
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assertThat(quartet2.containsAll(pair1));
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assertThat(quartet2.containsAll(pair2));
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Quartet<String, Integer, String, Integer> quartet1 = pair1.add("alex", 45);
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assertThat(quartet1.containsAll("alex", "john", 32, 45));
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Triplet<String, String, Integer> triplet2 = pair1.addAt1("1051 SW");
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assertThat(triplet2.indexOf("john")).isEqualTo(0);
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assertThat(triplet2.indexOf("1051 SW")).isEqualTo(1);
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assertThat(triplet2.indexOf(32)).isEqualTo(2);
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Unit<Integer> unit = pair1.removeFrom0();
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assertThat(unit.contains(32));
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}
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@Test
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public void whenCallingToList_thenReturnList() {
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Quartet<String, Double, Integer, String> quartet = Quartet.with("john", 72.5, 32, "1051 SW");
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List<Object> list = quartet.toList();
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assertThat(list.size()).isEqualTo(4);
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}
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@Test
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public void whenCallingToArray_thenReturnArray() {
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Quartet<String, Double, Integer, String> quartet = Quartet.with("john", 72.5, 32, "1051 SW");
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Object[] array = quartet.toArray();
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assertThat(array.length).isEqualTo(4);
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}
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}
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