v8/test/mjsunit/mirror-number.js
sgjesse@chromium.org 2a5955a4fc Changes to the mirror handling
When getting properties for the global object proxy the properties from the global object are returned.

Script objects now have handles and are serialized by reference.

Added special handling for NaN.
Review URL: http://codereview.chromium.org/18445

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-01-21 09:32:07 +00:00

78 lines
3.0 KiB
JavaScript

// Copyright 2008 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.
// Flags: --expose-debug-as debug
// Test the mirror object for number values
function testNumberMirror(n) {
// Create mirror and JSON representation.
var mirror = debug.MakeMirror(n);
var serializer = debug.MakeMirrorSerializer();
var json = serializer.serializeValue(mirror);
// Check the mirror hierachy.
assertTrue(mirror instanceof debug.Mirror);
assertTrue(mirror instanceof debug.ValueMirror);
assertTrue(mirror instanceof debug.NumberMirror);
// Check the mirror properties.
assertTrue(mirror.isNumber());
assertEquals('number', mirror.type());
assertTrue(mirror.isPrimitive());
// Test text representation
assertEquals(String(n), mirror.toText());
// Parse JSON representation and check.
var fromJSON = eval('(' + json + ')');
assertEquals('number', fromJSON.type);
if (!isNaN(n)) {
assertEquals(n, fromJSON.value);
} else {
// NaN values are encoded as strings.
assertTrue(typeof fromJSON.value == 'string');
if (n === Infinity) {
assertEquals('Infinity', fromJSON.value);
} else if (n === -Infinity) {
assertEquals('-Infinity', fromJSON.value);
} else {
assertEquals('NaN', fromJSON.value);
}
}
}
// Test a number of different numbers.
testNumberMirror(-7);
testNumberMirror(-6.5);
testNumberMirror(0);
testNumberMirror(42);
testNumberMirror(100.0002);
testNumberMirror(Infinity);
testNumberMirror(-Infinity);
testNumberMirror(NaN);