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// 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.
Error.captureStackTraces = true;
function testMethodNameInference() {
function Foo() { }
Foo.prototype.bar = function () { FAIL; };
(new Foo).bar();
}
function testNested() {
function one() {
function two() {
function three() {
FAIL;
}
three();
}
two();
}
one();
}
function testArrayNative() {
[1, 2, 3].map(function () { FAIL; });
}
function testImplicitConversion() {
function Nirk() { }
Nirk.prototype.valueOf = function () { FAIL; };
return 1 + (new Nirk);
}
function testEval() {
eval("function Doo() { FAIL; }; Doo();");
}
function testNestedEval() {
var x = "FAIL";
eval("function Outer() { eval('function Inner() { eval(x); }'); Inner(); }; Outer();");
}
function testValue() {
Number.prototype.causeError = function () { FAIL; };
(1).causeError();
}
function testConstructor() {
function Plonk() { FAIL; }
new Plonk();
}
// Utility function for testing that the expected strings occur
// in the stack trace produced when running the given function.
function testTrace(fun, expected) {
var threw = false;
try {
fun();
} catch (e) {
for (var i = 0; i < expected.length; i++) {
assertTrue(e.stack.indexOf(expected[i]) != -1);
}
threw = true;
}
assertTrue(threw);
}
// Test that the error constructor is not shown in the trace
function testCallerCensorship() {
var threw = false;
try {
FAIL;
} catch (e) {
assertEquals(-1, e.stack.indexOf('at new ReferenceError'));
threw = true;
}
assertTrue(threw);
}
// Test that the explicit constructor call is shown in the trace
function testUnintendedCallerCensorship() {
var threw = false;
try {
new ReferenceError({
toString: function () {
FAIL;
}
});
} catch (e) {
assertTrue(e.stack.indexOf('at new ReferenceError') != -1);
threw = true;
}
assertTrue(threw);
}
// If an error occurs while the stack trace is being formatted it should
// be handled gracefully.
function testErrorsDuringFormatting() {
function Nasty() { }
Nasty.prototype.foo = function () { throw new RangeError(); };
var n = new Nasty();
n.__defineGetter__('constructor', function () { CONS_FAIL; });
var threw = false;
try {
n.foo();
} catch (e) {
threw = true;
assertTrue(e.stack.indexOf('<error: ReferenceError') != -1);
}
assertTrue(threw);
threw = false;
// Now we can't even format the message saying that we couldn't format
// the stack frame. Put that in your pipe and smoke it!
ReferenceError.prototype.toString = function () { NESTED_FAIL; };
try {
n.foo();
} catch (e) {
threw = true;
assertTrue(e.stack.indexOf('<error>') != -1);
}
assertTrue(threw);
}
testTrace(testArrayNative, ["Array.map (native)"]);
testTrace(testNested, ["at one", "at two", "at three"]);
testTrace(testMethodNameInference, ["at Foo.bar"]);
testTrace(testImplicitConversion, ["at Nirk.valueOf"]);
testTrace(testEval, ["at Doo (eval at testEval"]);
testTrace(testNestedEval, ["at eval (eval at Inner (eval at Outer"]);
testTrace(testValue, ["at Number.causeError"]);
testTrace(testConstructor, ["new Plonk"]);
testCallerCensorship();
testUnintendedCallerCensorship();
testErrorsDuringFormatting();
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