@Test
public void testFormat4Digits() throws Exception {

    assertThat(TextUtilities.formatFourDecimals(0.0002), is("0.0002"));
    assertThat(TextUtilities.formatFourDecimals(20000), is("20000"));
    assertThat(TextUtilities.formatFourDecimals(2000.00234434), is("2000.0023"));
    assertThat(TextUtilities.formatFourDecimals(0.00234434), is("0.0023"));
}