  @Test
  public void testL() {

    long num = 12345L;
    assertThat(Format.l(num, 2)).isEqualTo("12345");
    assertThat(Format.l(num, 3)).isEqualTo("12345");
    assertThat(Format.l(num, 4)).isEqualTo("12345");
    assertThat(Format.l(num, 5)).isEqualTo("12345");
    assertThat(Format.l(num, 6)).isEqualTo(" 12345");
    assertThat(Format.l(num, 7)).isEqualTo("  12345");
  }