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package com.technologyconversations.java8exercises.streams;
import org.junit.Test;
import java.util.List;
import static com.technologyconversations.java8exercises.streams.Sum.*;
import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;
/*
Sum all elements of a collection
*/
public class SumSpec {
@Test
public void transformShouldConvertCollectionElementsToUpperCase() {
List<Integer> numbers = asList(1, 2, 3, 4, 5);
assertThat(calculate(numbers)).isEqualTo(1 + 2 + 3 + 4 + 5);
}
}
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