package io.atlassian.fugue;
   
   import org.junit.Test;
   
   import static io.atlassian.fugue.Either.left;
   import static io.atlassian.fugue.Either.right;
   import static org.hamcrest.Matchers.is;
   import static org.junit.Assert.assertThat;
   
  public class EitherLeftBiasTest {
    private final Either<String, Integer> l = left("heyaa!");
    private final Either<String, Integer> r = right(12);
  
    @Test public void leftOr_valueIsALeft_returnsLeftValue() {
      assertThat(l.leftOr(Functions.constant("yo dude")), is("heyaa!"));
    }
  
    @Test public void leftOr_valueIsARight_returnsRightTransformerResult() {
      assertThat(r.leftOr(Functions.constant("yo dude")), is("yo dude"));
    }
  }