1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 // Test default string representation of an Error object.
32 assertEquals('Error', e.toString());
35 // Test printing of cyclic errors which return the empty string for
36 // compatibility with Safari and Firefox.
41 e.stack = "Does not occur in output";
42 e.arguments = "Does not occur in output";
43 e.type = "Does not occur in output";
44 assertEquals('', e.toString());
49 e.stack = "Does not occur in output";
50 e.arguments = "Does not occur in output";
51 e.type = "Does not occur in output";
52 assertEquals('', e.toString());
55 // Test the sequence in which getters and toString operations are called
56 // on a given Error object. Verify the produced string representation.
58 function testErrorToString(nameValue, messageValue) {
63 return (nameValue === undefined) ? nameValue : {
64 toString: function() { seq.push(2); return nameValue; }
69 return (messageValue === undefined) ? messageValue : {
70 toString: function() { seq.push(4); return messageValue; }
74 var string = Error.prototype.toString.call(e);
78 assertEquals(["Error",[1,3]], testErrorToString(undefined, undefined));
79 assertEquals(["e1",[1,2,3]], testErrorToString("e1", undefined));
80 assertEquals(["e1: null",[1,2,3,4]], testErrorToString("e1", null));
81 assertEquals(["e1",[1,2,3,4]], testErrorToString("e1", ""));
82 assertEquals(["Error: e2",[1,3,4]], testErrorToString(undefined, "e2"));
83 assertEquals(["null: e2",[1,2,3,4]], testErrorToString(null, "e2"));
84 assertEquals(["e2",[1,2,3,4]], testErrorToString("", "e2"));
85 assertEquals(["e1: e2",[1,2,3,4]], testErrorToString("e1", "e2"));
93 assertThrows(function() { obj.x(); });