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package com.technologyconversations.java8exercises.streams;
import org.junit.Test;
import java.util.List;
import static com.technologyconversations.java8exercises.streams.FlatCollection.*;
import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;
/*
Flatten multidimensional collection
*/
public class FlatCollectionSpec {
@Test
public void transformShouldFlattenCollection() {
List<List<String>> collection = asList(asList("Viktor", "Farcic"), asList("John", "Doe", "Third"));
List<String> expected = asList("Viktor", "Farcic", "John", "Doe", "Third");
assertThat(transform(collection)).hasSameElementsAs(expected);
}
}
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