@Test
public void startsWithChar() {

    assertFalse(StringUtil.startsWithChar(null, ' '));
    assertFalse(StringUtil.startsWithChar("xxxxx", ' '));
    assertTrue(StringUtil.startsWithChar(" xxx", ' '));
    assertTrue(StringUtil.startsWithChar("xxxxb", 'x'));
    assertFalse(StringUtil.startsWithChar("xxxxx", 'b'));
}