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65 lines
3.1 KiB
65 lines
3.1 KiB
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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var s = 'abcdefghijklmn';
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assertEquals(s, s.substr());
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assertEquals(s, s.substr(0));
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assertEquals(s, s.substr('0'));
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assertEquals(s, s.substr(void 0));
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assertEquals(s, s.substr(null));
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assertEquals(s, s.substr(false));
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assertEquals(s, s.substr(0.9));
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assertEquals(s, s.substr({ valueOf: function() { return 0; } }));
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assertEquals(s, s.substr({ toString: function() { return '0'; } }));
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var s1 = s.substring(1);
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assertEquals(s1, s.substr(1));
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assertEquals(s1, s.substr('1'));
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assertEquals(s1, s.substr(true));
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assertEquals(s1, s.substr(1.1));
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assertEquals(s1, s.substr({ valueOf: function() { return 1; } }));
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assertEquals(s1, s.substr({ toString: function() { return '1'; } }));
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for (var i = 0; i < s.length; i++)
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for (var j = i; j < s.length + 5; j++)
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assertEquals(s.substring(i, j), s.substr(i, j - i));
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assertEquals(s.substring(s.length - 1), s.substr(-1));
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assertEquals(s.substring(s.length - 1), s.substr(-1.2));
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assertEquals(s.substring(s.length - 1), s.substr(-1.7));
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assertEquals(s.substring(s.length - 2), s.substr(-2));
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assertEquals(s.substring(s.length - 2), s.substr(-2.3));
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assertEquals(s.substring(s.length - 2, s.length - 1), s.substr(-2, 1));
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assertEquals(s, s.substr(-100));
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assertEquals('abc', s.substr(-100, 3));
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assertEquals(s1, s.substr(-s.length + 1));
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// assertEquals('', s.substr(0, void 0)); // smjs and rhino
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assertEquals('abcdefghijklmn', s.substr(0, void 0)); // kjs and v8
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assertEquals('', s.substr(0, null));
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assertEquals(s, s.substr(0, String(s.length)));
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assertEquals('a', s.substr(0, true));
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