source: TraumaOntologies/src/test/java/tudelft/healthpsychology/traumaontologies/CsvTranslationFilesTest.java

package tudelft.healthpsychology.traumaontologies;

import static org.junit.Assert.assertTrue;

import java.io.IOException;
import java.io.InputStream;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameter;
import org.junit.runners.Parameterized.Parameters;

import tudelft.utilities.translator.BasicCsvTranslator;

/**
 * Check csv translation files
 * 
 * @author wouter
 *
 */
@RunWith(Parameterized.class)
public class CsvTranslationFilesTest {

        private final static String[] csvFiles = new String[] { "NL.csv",
                        "EN.csv" };

        @Parameters
        public static Object[] data() {
                return csvFiles;
        }

        @Parameter
        public String csvFile;

        /**
         * Test that all csv files have the same keys (the original language
         * sentences)
         * 
         * @throws IOException
         */
        @Test
        public void testSameKeys() throws IOException {
                System.out.println("testing file " + csvFile);

                MyTranslator tested = new MyTranslator(
                                getClass().getResourceAsStream("/" + csvFile));

                MyTranslator baseline = new MyTranslator(
                                getClass().getResourceAsStream("/" + csvFiles[0]));

                checkMissing(tested.getMap().keySet(), baseline.getMap().keySet(),
                                "There are keys missing in " + csvFile);
                checkMissing(baseline.getMap().keySet(), tested.getMap().keySet(),
                                "There are keys extra in " + csvFile);

        }

        /**
         * Check if values are missing in testset that are in baselineset.
         * 
         * @param testset     the set to check
         * @param baselineset the baseline of must-have values
         * @param message     error message if there are values
         */
        private void checkMissing(Set<String> testkeys, Set<String> baselinekeys,
                        String message) {
                Set<String> remaining = new HashSet<String>(baselinekeys);
                remaining.removeAll(testkeys);
                assertTrue(message + ":" + remaining, remaining.isEmpty());
        }

}

/**
 * Extend to access map for direct testing of map contents.
 *
 */
class MyTranslator extends BasicCsvTranslator {
        public MyTranslator(InputStream csvResource) throws IOException {
                super(csvResource);
        }

        public Map<String, String> getMap() {
                return map;
        }
}