// Two orphan low surrogates.
    assertEquals("\uDCAB", Strings.commonSuffix("\uDCAB", "\uDCAB"));
  }

  public void testValidSurrogatePairAt() {
    assertTrue(Strings.validSurrogatePairAt("\uD8AB\uDCAB", 0));
    assertTrue(Strings.validSurrogatePairAt("abc\uD8AB\uDCAB", 3));
    assertTrue(Strings.validSurrogatePairAt("abc\uD8AB\uDCABxyz", 3));

    // Two orphan low surrogates.
    assertEquals("\uDCAB", Strings.commonSuffix("\uDCAB", "\uDCAB"));
  }

  public void testValidSurrogatePairAt() {
    assertTrue(Strings.validSurrogatePairAt("\uD8AB\uDCAB", 0));
    assertTrue(Strings.validSurrogatePairAt("abc\uD8AB\uDCAB", 3));
    assertTrue(Strings.validSurrogatePairAt("abc\uD8AB\uDCABxyz", 3));

d,?xiw,??stad?xamay?y??v!.&a&lnos?ohhnah&k?t???c&a?ouhphnib?uhphniv??di?e&man?rtneb?uhneihtauht??g&n&a&boac?ig&ah?cab?n&a?ei&k?t???uah??nad?rtcos?uqneyut??o&dmal?hpiah?lhniv?nkad?ud&hnib?iah????ro??h&ni&b&aoh?gnauq?hnin?iaht??d&hnib?man??mihcohohphnaht?n&cab?gnauq?yat??tah?vart??tlaeh??i&a!bney?coal?gngnauq?laig?ngnod??onah?rtgnauq??kalkad?m&an&ah?gnauq??oc?utnok??n&a&ehgn?gnol?kcab?uhthni&b?n???e&ibneid?y&gnuh?u&gniaht?hp????osgnal??o&fni?ht&nac?uhp??i?rp??pahtgnod?t&en?ni?opsgolb,?u&a&hcial?ma...

d,?xiw,??stad?xamay?y??v!.&a&lnos?ohhnah&k?t???c&a?ouhphnib?uhphniv??di?e&man?rtneb?uhneihtauht??g&n&a&boac?ig&ah?cab?n&a?ei&k?t???uah??nad?rtcos?uqneyut??o&dmal?hpiah?lhniv?nkad?ud&hnib?iah????ro??h&ni&b&aoh?gnauq?hnin?iaht??d&hnib?man??mihcohohphnaht?n&cab?gnauq?yat??tah?vart??tlaeh??i&a!bney?coal?gngnauq?laig?ngnod??onah?rtgnauq??kalkad?m&an&ah?gnauq??oc?utnok??n&a&ehgn?gnol?kcab?uhthni&b?n???e&ibneid?y&gnuh?u&gniaht?hp????osgnal??o&fni?ht&nac?uhp??i?rp??pahtgnod?t&en?ni?opsgolb,?u&a&hcial?ma...

2CA8          ; mapped                 ; 2CA9          # 4.1  COPTIC CAPITAL LETTER UA
2CA9          ; valid                                  # 4.1  COPTIC SMALL LETTER UA
2CAA          ; mapped                 ; 2CAB          # 4.1  COPTIC CAPITAL LETTER FI
2CAB          ; valid                                  # 4.1  COPTIC SMALL LETTER FI
2CAC          ; mapped                 ; 2CAD          # 4.1  COPTIC CAPITAL LETTER KHI

business

// buy : 2014-12-18 Amazon Registry Services, Inc.
buy

// buzz : 2013-10-02 DOTSTRATEGY CO.
buzz

// bzh : 2014-02-27 Association www.bzh
bzh

// cab : 2013-10-24 Binky Moon, LLC
cab

// cafe : 2015-02-11 Binky Moon, LLC
cafe

// cal : 2014-07-24 Charleston Road Registry Inc.
cal

// call : 2014-12-18 Amazon Registry Services, Inc.
call

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