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      1 // Copyright 2013 the V8 project authors. All rights reserved.
      2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
      3 //
      4 // Redistribution and use in source and binary forms, with or without
      5 // modification, are permitted provided that the following conditions
      6 // are met:
      7 // 1.  Redistributions of source code must retain the above copyright
      8 //     notice, this list of conditions and the following disclaimer.
      9 // 2.  Redistributions in binary form must reproduce the above copyright
     10 //     notice, this list of conditions and the following disclaimer in the
     11 //     documentation and/or other materials provided with the distribution.
     12 //
     13 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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     17 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     18 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     19 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23 
     24 description(
     25 "This test checks the boundary cases of substr()."
     26 );
     27 
     28 shouldBe("'bar'.substr(0)", "'bar'");
     29 shouldBe("'bar'.substr(3)", "''");
     30 shouldBe("'bar'.substr(4)", "''");
     31 shouldBe("'bar'.substr(-1)", "'r'");
     32 shouldBe("'bar'.substr(-3)", "'bar'");
     33 shouldBe("'bar'.substr(-4)", "'bar'");
     34 
     35 shouldBe("'bar'.substr(0, 0)", "''");
     36 shouldBe("'bar'.substr(0, 1)", "'b'");
     37 shouldBe("'bar'.substr(0, 3)", "'bar'");
     38 shouldBe("'bar'.substr(0, 4)", "'bar'");
     39 
     40 shouldBe("'bar'.substr(1, 0)", "''");
     41 shouldBe("'bar'.substr(1, 1)", "'a'");
     42 shouldBe("'bar'.substr(1, 2)", "'ar'");
     43 shouldBe("'bar'.substr(1, 3)", "'ar'");
     44 
     45 shouldBe("'bar'.substr(3, 0)", "''");
     46 shouldBe("'bar'.substr(3, 1)", "''");
     47 shouldBe("'bar'.substr(3, 3)", "''");
     48 
     49 shouldBe("'bar'.substr(4, 0)", "''");
     50 shouldBe("'bar'.substr(4, 1)", "''");
     51 shouldBe("'bar'.substr(4, 3)", "''");
     52 
     53 shouldBe("'bar'.substr(-1, 0)", "''");
     54 shouldBe("'bar'.substr(-1, 1)", "'r'");
     55 
     56 shouldBe("'bar'.substr(-3, 1)", "'b'");
     57 shouldBe("'bar'.substr(-3, 3)", "'bar'");
     58 shouldBe("'bar'.substr(-3, 4)", "'bar'");
     59 
     60 shouldBe("'bar'.substr(-4)", "'bar'");
     61 shouldBe("'bar'.substr(-4, 0)", "''");
     62 shouldBe("'bar'.substr(-4, 1)", "'b'");
     63 shouldBe("'bar'.substr(-4, 3)", "'bar'");
     64 shouldBe("'bar'.substr(-4, 4)", "'bar'");
     65 
     66 shouldBe("'GMAIL_IMP=bf-i%2Fd-0-0%2Ftl-v'.substr(10)", "'bf-i%2Fd-0-0%2Ftl-v'");
     67