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Diffstat (limited to 'test/mjsunit/big-object-literal.js')
-rw-r--r-- | test/mjsunit/big-object-literal.js | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/test/mjsunit/big-object-literal.js b/test/mjsunit/big-object-literal.js new file mode 100644 index 00000000..c937f54d --- /dev/null +++ b/test/mjsunit/big-object-literal.js @@ -0,0 +1,114 @@ +// Copyright 2009 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. + +// Test that we can make large object literals that work. +// Also test that we can attempt to make even larger object literals without +// crashing. +function testLiteral(size, array_in_middle) { + print(size); + + var f; + + // Build object-literal string. + var literal = "function f() { return "; + + for (var i = 0; i < size; i++) { + literal += "{a:"; + } + + literal += array_in_middle ? " [42.2]" : "{a:42.2}"; + + for (var i = 0; i < size; i++) { + literal += "}"; + if (i < size - 1) { + literal += ", b:42, c:/asd/, x:'foo', y:[], z:new Object()"; + } + } + + literal += "; }"; + + // Create the object literal. + eval(literal); + + var x = f(); + + // Check that the properties have the expected values. + for (var i = 0; i < size; i++) { + x = x.a; + } + + if (array_in_middle) { + assertEquals(42.2, x[0]), "x array in middle"; + x[0] = 41.2; + } else { + assertEquals(42.2, x.a, "x object in middle"); + x.a = 41.2; + } + + var y = f(); + for (var i = 0; i < size; i++) { + y = y.a; + } + + if (array_in_middle) { + assertEquals(42.2, y[0], "y array in middle"); + y[0] = 41.2; + } else { + assertEquals(42.2, y.a, "y object in middle"); + y.a = 41.2; + } +} + +// The sizes to test. +var sizes = [1, 2, 100, 200]; + +// Run the test. +for (var i = 0; i < sizes.length; i++) { + testLiteral(sizes[i], false); + testLiteral(sizes[i], true); +} + +function testLiteralAndCatch(size) { + var big_enough = false; + try { + testLiteral(size, false); + } catch (e) { + big_enough = true; + } + try { + testLiteral(size, true); + } catch (e) { + big_enough = true; + } + return big_enough; +} + +// Catch stack overflows. + +testLiteralAndCatch(1000) || +testLiteralAndCatch(20000) || +testLiteralAndCatch(200000); |