v8/test/mjsunit/regress/regress-2444.js

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// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
var flags;
function resetFlags(size) {
flags = Array(size);
while (size--) flags[size] = 0;
}
function assertFlags(array) {
assertArrayEquals(array, flags);
}
function object_factory(flag_index, value, expected_flags) {
var obj = {};
obj.valueOf = function() {
assertFlags(expected_flags);
flags[flag_index]++;
return value;
}
return obj;
}
assertEquals(-Infinity, Math.max());
resetFlags(1);
assertEquals(NaN,
Math.max(object_factory(0, NaN, [0])));
assertFlags([1]);
resetFlags(2);
assertEquals(NaN,
Math.max(object_factory(0, NaN, [0, 0]),
object_factory(1, 0, [1, 0])));
assertFlags([1, 1]);
resetFlags(3);
assertEquals(NaN,
Math.max(object_factory(0, NaN, [0, 0, 0]),
object_factory(1, 0, [1, 0, 0]),
object_factory(2, 1, [1, 1, 0])));
assertFlags([1, 1, 1]);
resetFlags(3);
assertEquals(NaN,
Math.max(object_factory(0, 2, [0, 0, 0]),
object_factory(1, 0, [1, 0, 0]),
object_factory(2, NaN, [1, 1, 0])));
assertFlags([1, 1, 1]);
resetFlags(3);
assertEquals(2,
Math.max(object_factory(0, 2, [0, 0, 0]),
object_factory(1, 0, [1, 0, 0]),
object_factory(2, 1, [1, 1, 0])));
assertFlags([1, 1, 1]);
assertEquals(+Infinity, Math.min());
resetFlags(1);
assertEquals(NaN,
Math.min(object_factory(0, NaN, [0])));
assertFlags([1]);
resetFlags(2);
assertEquals(NaN,
Math.min(object_factory(0, NaN, [0, 0]),
object_factory(1, 0, [1, 0])));
assertFlags([1, 1]);
resetFlags(3);
assertEquals(NaN,
Math.min(object_factory(0, NaN, [0, 0, 0]),
object_factory(1, 0, [1, 0, 0]),
object_factory(2, 1, [1, 1, 0])));
assertFlags([1, 1, 1]);
resetFlags(3);
assertEquals(NaN,
Math.min(object_factory(0, 2, [0, 0, 0]),
object_factory(1, 0, [1, 0, 0]),
object_factory(2, NaN, [1, 1, 0])));
assertFlags([1, 1, 1]);
resetFlags(3);
assertEquals(0,
Math.min(object_factory(0, 2, [0, 0, 0]),
object_factory(1, 0, [1, 0, 0]),
object_factory(2, 1, [1, 1, 0])));
assertFlags([1, 1, 1]);