/*
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 * modification, must retain the above copyright notice and the following
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package org.spine3.string;

import com.google.protobuf.Duration;
import org.junit.Test;
import org.spine3.time.Durations2;

import static org.junit.Assert.assertEquals;

/**
 * @author Alexander Yevsyukov
 */
public class DurationStringifierShould {

    private static final Stringifier<Duration> stringifier = TimeStringifiers.forDuration();

    @Test
    public void convert_back_and_forth() {
        final Duration positive = Durations2.hoursAndMinutes(5, 37);
        final Duration negative = Durations2.hoursAndMinutes(-4, -31);

        assertEquals(positive, stringifier.reverse()
                                          .convert(stringifier.convert(positive)));
        assertEquals(negative, stringifier.reverse()
                                          .convert(stringifier.convert(negative)));
    }
}

Add test for duration stringifier