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