package jalview.util;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertNotEquals;
import static org.testng.Assert.assertTrue;

import org.testng.annotations.Test;

public class CaseInsensitiveStringTest
{
  @Test(groups = "Functional")
  public void testEquals()
  {
    CaseInsensitiveString s1 = new CaseInsensitiveString(null);
    CaseInsensitiveString s2 = new CaseInsensitiveString("a");
    CaseInsensitiveString s3 = new CaseInsensitiveString("A");
    CaseInsensitiveString s4 = new CaseInsensitiveString("b");

    assertFalse(s1.equals(null));
    assertTrue(s1.equals(s1));
    assertFalse(s1.equals(s2));
    assertTrue(s2.equals(s2));
    assertFalse(s2.equals(s1));
    assertTrue(s2.equals(s3));
    assertTrue(s3.equals(s2));
    assertFalse(s3.equals(s4));
    assertFalse(s4.equals(s3));
  }

  @Test(groups = "Functional")
  public void testHashcode()
  {
    CaseInsensitiveString s1 = new CaseInsensitiveString(null);
    CaseInsensitiveString s2 = new CaseInsensitiveString("a");
    CaseInsensitiveString s3 = new CaseInsensitiveString("A");
    CaseInsensitiveString s4 = new CaseInsensitiveString("b");

    assertNotEquals(s1.hashCode(), s2.hashCode());
    assertEquals(s2.hashCode(), s3.hashCode());
    assertNotEquals(s3.hashCode(), s4.hashCode());
  }
}