454c1faeef
R=yangguo@chromium.org LOG=n Committed: https://crrev.com/5dffa35350d0f57402806e6bd87a914e1d5933e4 Cr-Commit-Position: refs/heads/master@{#32695} Review URL: https://codereview.chromium.org/1507273002 Cr-Commit-Position: refs/heads/master@{#32720}
94 lines
3.5 KiB
JavaScript
94 lines
3.5 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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// Test default string representation of an Error object.
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var e = new Error();
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assertEquals('Error', e.toString());
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// Test printing of cyclic errors which return the empty string for
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// compatibility with Safari and Firefox.
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e = new Error();
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e.name = e;
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e.message = e;
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e.stack = "Does not occur in output";
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e.arguments = "Does not occur in output";
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e.type = "Does not occur in output";
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assertThrows(()=>e.toString(), RangeError);
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e = new Error();
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e.name = [ e ];
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e.message = [ e ];
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e.stack = "Does not occur in output";
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e.arguments = "Does not occur in output";
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e.type = "Does not occur in output";
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assertEquals('', e.toString());
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// Test the sequence in which getters and toString operations are called
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// on a given Error object. Verify the produced string representation.
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function testErrorToString(nameValue, messageValue) {
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var seq = [];
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var e = {
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get name() {
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seq.push(1);
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return (nameValue === undefined) ? nameValue : {
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toString: function() { seq.push(2); return nameValue; }
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};
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},
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get message() {
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seq.push(3);
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return (messageValue === undefined) ? messageValue : {
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toString: function() { seq.push(4); return messageValue; }
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};
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}
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};
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var string = Error.prototype.toString.call(e);
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return [string,seq];
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}
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assertEquals(["Error",[1,3]], testErrorToString(undefined, undefined));
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assertEquals(["e1",[1,2,3]], testErrorToString("e1", undefined));
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assertEquals(["e1: null",[1,2,3,4]], testErrorToString("e1", null));
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assertEquals(["e1",[1,2,3,4]], testErrorToString("e1", ""));
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assertEquals(["Error: e2",[1,3,4]], testErrorToString(undefined, "e2"));
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assertEquals(["null: e2",[1,2,3,4]], testErrorToString(null, "e2"));
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assertEquals(["e2",[1,2,3,4]], testErrorToString("", "e2"));
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assertEquals(["e1: e2",[1,2,3,4]], testErrorToString("e1", "e2"));
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var obj = {
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get constructor () {
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assertUnreachable();
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}
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};
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assertThrows(function() { obj.x(); });
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