@Test
  public void testMaskFromEnd() {
    CommonMaskStrategy maskStategy = new CommonMaskStrategy("*(,6)");
    Assert.assertEquals("******10000", maskStategy.eval("13805710000", null));

    maskStategy = new CommonMaskStrategy("*(,-4)");
    Assert.assertEquals("*******0000", maskStategy.eval("13805710000", null));
  }
  /** 模糊化为指定长度 */
  @Test
  public void testMaskToFixed() {
    CommonMaskStrategy maskStategy = new CommonMaskStrategy("*3(,)");
    Assert.assertEquals("***", maskStategy.eval("only测试信息模糊化", null));

    maskStategy = new CommonMaskStrategy("*20(,)");
    Assert.assertEquals("********************", maskStategy.eval("only测试信息模糊化", null));
  }
  @Test
  public void testMaskToFixedFromStart() {
    CommonMaskStrategy maskStategy = new CommonMaskStrategy("*3(3,)");
    Assert.assertEquals("138***", maskStategy.eval("13805710000", null));

    maskStategy = new CommonMaskStrategy("*3(-4,)");
    Assert.assertEquals("1380571***", maskStategy.eval("13805710000", null));

    maskStategy = new CommonMaskStrategy("*3(-4,6)");
    Assert.assertEquals("1380571***", maskStategy.eval("13805710000", null));
  }
  @Test
  public void testMaskFromStart() {
    /** 从第二个字符开始模糊 */
    CommonMaskStrategy maskStategy = new CommonMaskStrategy("*(1,)");
    Assert.assertEquals("张*", maskStategy.eval("张三", null));
    Assert.assertEquals("李**", maskStategy.eval("李小明", null));

    /** 模糊倒数四位 */
    maskStategy = new CommonMaskStrategy("*(-4,)");
    Assert.assertEquals("1380571****", maskStategy.eval("13805710000", null));

    maskStategy = new CommonMaskStrategy("*(-4,6)");
    Assert.assertEquals("1380571****", maskStategy.eval("13805710000", null));
  }
  /** 通用模糊化 */
  @Test
  public void testMask() {
    // 通用模糊化
    CommonMaskStrategy maskStategy = new CommonMaskStrategy();
    Assert.assertEquals("***********", maskStategy.eval("only测试信息模糊化", null));

    Assert.assertEquals("", maskStategy.eval("", null));
    Assert.assertNull(maskStategy.eval(null, null));

    maskStategy = new CommonMaskStrategy("*(3,8)");
    Assert.assertEquals("onl*****模糊化", maskStategy.eval("only测试信息模糊化", null));

    maskStategy = new CommonMaskStrategy("(,15)");
    Assert.assertEquals("***********", maskStategy.eval("only测试信息模糊化", null));
  }
 @Test
 public void testMaskToFixedFromStartAndEnd() {
   CommonMaskStrategy maskStategy = new CommonMaskStrategy("*3(5,-4)");
   Assert.assertEquals("95588***2334", maskStategy.eval("9558801202106562334", null));
 }