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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
82 lines
3.1 KiB
JavaScript
82 lines
3.1 KiB
JavaScript
// Copyright 2011 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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assertEquals(Boolean(void 0), false);
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assertEquals(Boolean(null), false);
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assertEquals(Boolean(false), false);
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assertEquals(Boolean(true), true);
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assertEquals(Boolean(0), false);
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assertEquals(Boolean(1), true);
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assertEquals(Boolean(assertEquals), true);
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assertEquals(Boolean(new Object()), true);
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assertTrue(new Boolean(false) !== false);
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assertTrue(new Boolean(false) == false);
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assertTrue(new Boolean(true) !== true);
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assertTrue(new Boolean(true) == true);
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assertEquals(true, !false);
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assertEquals(false, !true);
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assertEquals(true, !!true);
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assertEquals(false, !!false);
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assertEquals(true, true ? true : false);
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assertEquals(false, false ? true : false);
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assertEquals(false, true ? false : true);
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assertEquals(true, false ? false : true);
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assertEquals(true, true && true);
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assertEquals(false, true && false);
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assertEquals(false, false && true);
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assertEquals(false, false && false);
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// Regression.
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var t = 42;
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assertEquals(void 0, t.p);
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assertEquals(void 0, t.p && true);
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assertEquals(void 0, t.p && false);
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assertEquals(void 0, t.p && (t.p == 0));
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assertEquals(void 0, t.p && (t.p == null));
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assertEquals(void 0, t.p && (t.p == t.p));
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var o = new Object();
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o.p = 'foo';
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assertEquals('foo', o.p);
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assertEquals('foo', o.p || true);
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assertEquals('foo', o.p || false);
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assertEquals('foo', o.p || (o.p == 0));
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assertEquals('foo', o.p || (o.p == null));
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assertEquals('foo', o.p || (o.p == o.p));
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// JSToBoolean(x:string)
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function f(x) { return !!("" + x); }
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assertEquals(false, f(""));
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assertEquals(true, f("narf"));
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assertEquals(true, f(12345678));
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assertEquals(true, f(undefined));
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