package jalview.util;

import static org.testng.Assert.assertEquals;

import org.testng.annotations.Test;

public class FormatTest
{
  @Test(groups = "Functional")
  public void testAppendPercentage()
  {
    StringBuilder sb = new StringBuilder();
    Format.appendPercentage(sb, 123.436f, 0);
    assertEquals(sb.toString(), "123");

    sb.setLength(0);
    Format.appendPercentage(sb, 123.536f, 0);
    assertEquals(sb.toString(), "124");

    sb.setLength(0);
    Format.appendPercentage(sb, 799.536f, 0);
    assertEquals(sb.toString(), "800");

    sb.setLength(0);
    Format.appendPercentage(sb, 123.436f, 1);
    assertEquals(sb.toString(), "123.4");

    sb.setLength(0);
    Format.appendPercentage(sb, 123.436f, 2);
    assertEquals(sb.toString(), "123.44");

    sb.setLength(0);
    Format.appendPercentage(sb, 123.436f, 3);
    assertEquals(sb.toString(), "123.436");

    sb.setLength(0);
    Format.appendPercentage(sb, 123.436f, 4);
    assertEquals(sb.toString(), "123.4360");
  }

  @Test(groups = "Functional")
  public void testForm_float()
  {
    Format f = new Format("%3.2f");
    assertEquals(f.form(123f), "123.00");
    assertEquals(f.form(123.1f), "123.10");
    assertEquals(f.form(123.12f), "123.12");
    assertEquals(f.form(123.124f), "123.12");
    assertEquals(f.form(123.125f), "123.13");
    assertEquals(f.form(123.126f), "123.13");

    f = new Format("%3.0f");
    assertEquals(f.form(123f), "123.");
    assertEquals(f.form(12f), "12.");
    assertEquals(f.form(123.4f), "123.");
    assertEquals(f.form(123.5f), "124.");
    assertEquals(f.form(123.6f), "124.");
    assertEquals(f.form(129.6f), "130.");
  }
}