package jalview.datamodel;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.nullValue;

import java.awt.Color;

import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

public class AnnotationTest
{
  @Test(groups = "Functional")
  public void testConstructor_ValueOnly()
  {
    var annotation = new Annotation(0.5f);
    assertThat(annotation.displayCharacter, nullValue());
    assertThat(annotation.description, nullValue());
    assertThat(annotation.secondaryStructure, is(' '));
    assertThat(annotation.value, is(0.5f));
    assertThat(annotation.colour, is(nullValue()));
  }

  @Test(groups = "Functional")
  public void testCopyConstructor_NullValue_EmptyAnnotationCreated()
  {
    var annotation = new Annotation((Annotation) null);
    assertThat(annotation.displayCharacter, equalTo(""));
    assertThat(annotation.description, equalTo(""));
    assertThat(annotation.secondaryStructure, is(' '));
    assertThat(annotation.value, is(0.0f));
    assertThat(annotation.colour, is(nullValue()));
  }

  @DataProvider
  public Object[] emptyAnnotations()
  {
    return new Object[] {
        Annotation.EMPTY_ANNOTATION, new Annotation(0.0f),
        new Annotation((Annotation) null),
        new Annotation(Annotation.EMPTY_ANNOTATION),
        new Annotation("", "", ' ', 0.0f),
        new Annotation(null, null, ' ', 0.0f),
        new Annotation("", "", '\0', 0.0f), new Annotation("", null, ' ', 0.0f),
        new Annotation(null, "", ' ', 0.0f), new Annotation(" ", "", ' ', 0.0f),
        new Annotation(" .", "", ' ', 0.0f), new Annotation("", " ", ' ', 0.0f),
        new Annotation("", "", ' ', 0.0f, null),
        new Annotation("", " ", ' ', 0.0f),
        new Annotation("", "\n", ' ', 0.0f), };
  }

  @Test(groups = "Functional", dataProvider = "emptyAnnotations")
  public void testIsWhitespace_EmptyAnnotations(Annotation annot)
  {
    assertThat("Annotation " + annot + " is not whitespace, but should be",
        annot.isWhitespace());
  }

  @DataProvider
  public Object[] nonEmptyAnnotations()
  {
    return new Object[] {
        new Annotation(0.4f),
        new Annotation(new Annotation(0.1f)),
        new Annotation("A", "", ' ', 0.0f),
        new Annotation("", "", ' ', 0.0f, Color.WHITE),
        new Annotation(null, null, ' ', -0.1f),
        new Annotation(null, null, 'A', 0.0f),
        new Annotation(null, "desc", ' ', 0.0f),
        new Annotation("0", "<nil>", '\0', 0.0f),
    };
  }
  
  @Test(groups = "Functional", dataProvider = "nonEmptyAnnotations")
  public void testIsWhitespace_NonEmptyAnnotation(Annotation annot)
  {
    assertThat("Annotation " + annot + " is whitespace, but should not be",
        !annot.isWhitespace());
  }
}