package jalview.analysis;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

import org.testng.annotations.Test;

public class AlignSeqTest
{
  @Test(groups ={ "Functional" })
  public void testExtractGaps()
  {
    assertNull(AlignSeq.extractGaps(null, null));
    assertNull(AlignSeq.extractGaps(null, "ACG"));
    assertNull(AlignSeq.extractGaps("-. ", null));

    assertEquals(" AC-G.T", AlignSeq.extractGaps("", " AC-G.T"));
    assertEquals("AC-G.T", AlignSeq.extractGaps(" ", " AC-G.T"));
    assertEquals("ACG.T", AlignSeq.extractGaps(" -", " AC-G.T"));
    assertEquals("ACGT", AlignSeq.extractGaps(" -.", " AC-G.T ."));
    assertEquals(" ACG.T", AlignSeq.extractGaps("-", " AC-G.T"));
  }
}