34 lines
685 B
Java
34 lines
685 B
Java
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package com.baeldung.mapdb;
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import org.junit.Test;
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import org.mapdb.DB;
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import org.mapdb.DBMaker;
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import org.mapdb.Serializer;
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import java.util.NavigableSet;
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import static junit.framework.Assert.assertEquals;
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public class CollectionsUnitTest {
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@Test
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public void givenSetCreatedInDB_whenMultipleElementsAdded_checkOnlyOneExists() {
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DB db = DBMaker.memoryDB().make();
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NavigableSet<String> set = db.
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treeSet("mySet")
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.serializer(Serializer.STRING)
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.createOrOpen();
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String myString = "Baeldung!";
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set.add(myString);
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set.add(myString);
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assertEquals(1, set.size());
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db.close();
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}
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}
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