package no.priv.garshol.duke.test;
import org.junit.Test;
import org.junit.Before;
import static junit.framework.Assert.assertEquals;
import no.priv.garshol.duke.comparators.WeightedLevenshtein;
public class WeightedLevenshteinTest {
private WeightedLevenshtein.DefaultWeightEstimator e;
@Before
public void setup() {
e = new WeightedLevenshtein.DefaultWeightEstimator();
}
@Test
public void testEmpty() {
assertEquals(0.0, WeightedLevenshtein.distance("", "", e));
}
@Test
public void testEmpty1() {
e.setDigitWeight(1.0);
assertEquals(1.0, WeightedLevenshtein.distance("", "1", e));
}
@Test
public void testEmpty2() {
e.setDigitWeight(2.0);
assertEquals(2.0, WeightedLevenshtein.distance("1", "", e));
}
@Test
public void testSubstitute1() {
e.setDigitWeight(2.0);
assertEquals(2.0, WeightedLevenshtein.distance("titanic 1", "titanic 2", e));
}
@Test
public void testSubstitute2() {
e.setDigitWeight(2.0);
assertEquals(3.0, WeightedLevenshtein.distance("totanic 1", "titanic 2", e));
}
@Test
public void testComparator() {
WeightedLevenshtein comp = new WeightedLevenshtein();
assertEquals(0.0, comp.compare("1", ""));
}
}