@Test
public void testBr_CrOnly() {

    assertThat(Functions.br("\r"), is("<br />"));
    assertThat(Functions.br("a\r"), is("a<br />"));
    assertThat(Functions.br("\ra"), is("<br />a"));
    assertThat(Functions.br("\r\r"), is("<br /><br />"));
    assertThat(Functions.br("<br />\r\r<br />"), is(
            "<br /><br /><br /><br />"));
}