v8/test/mjsunit/stack-traces.js
2012-12-11 10:14:01 +00:00

324 lines
10 KiB
JavaScript

// 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.
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 testEvalWithSourceURL() {
eval("function Doo() { FAIL; }; Doo();\n//@ sourceURL=res://name");
}
function testNestedEvalWithSourceURL() {
var x = "FAIL";
var innerEval = 'function Inner() { eval(x); }\n//@ sourceURL=res://inner-eval';
eval("function Outer() { eval(innerEval); Inner(); }; Outer();\n//@ sourceURL=res://outer-eval");
}
function testValue() {
Number.prototype.causeError = function () { FAIL; };
(1).causeError();
}
function testConstructor() {
function Plonk() { FAIL; }
new Plonk();
}
function testRenamedMethod() {
function a$b$c$d() { return FAIL; }
function Wookie() { }
Wookie.prototype.d = a$b$c$d;
(new Wookie).d();
}
function testAnonymousMethod() {
(function () { FAIL }).call([1, 2, 3]);
}
function CustomError(message, stripPoint) {
this.message = message;
Error.captureStackTrace(this, stripPoint);
}
CustomError.prototype.toString = function () {
return "CustomError: " + this.message;
};
function testDefaultCustomError() {
throw new CustomError("hep-hey", undefined);
}
function testStrippedCustomError() {
throw new CustomError("hep-hey", CustomError);
}
MyObj = function() { FAIL; }
MyObjCreator = function() {}
MyObjCreator.prototype.Create = function() {
return new MyObj();
}
function testClassNames() {
(new MyObjCreator).Create();
}
// Utility function for testing that the expected strings occur
// in the stack trace produced when running the given function.
function testTrace(name, fun, expected, unexpected) {
var threw = false;
try {
fun();
} catch (e) {
for (var i = 0; i < expected.length; i++) {
assertTrue(e.stack.indexOf(expected[i]) != -1,
name + " doesn't contain expected[" + i + "] stack = " + e.stack);
}
if (unexpected) {
for (var i = 0; i < unexpected.length; i++) {
assertEquals(e.stack.indexOf(unexpected[i]), -1,
name + " contains unexpected[" + i + "]");
}
}
threw = true;
}
assertTrue(threw, name + " didn't throw");
}
// 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'),
"CallerCensorship contained new ReferenceError");
threw = true;
}
assertTrue(threw, "CallerCensorship didn't throw");
}
// 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,
"UnintendedCallerCensorship didn't contain new ReferenceError");
threw = true;
}
assertTrue(threw, "UnintendedCallerCensorship didn't throw");
}
// 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,
"ErrorsDuringFormatting didn't contain error: ReferenceError");
}
assertTrue(threw, "ErrorsDuringFormatting didn't throw");
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,
"ErrorsDuringFormatting didn't contain <error>");
}
assertTrue(threw, "ErrorsDuringFormatting didnt' throw (2)");
}
// Poisonous object that throws a reference error if attempted converted to
// a primitive values.
var thrower = { valueOf: function() { FAIL; },
toString: function() { FAIL; } };
// Tests that a native constructor function is included in the
// stack trace.
function testTraceNativeConstructor(nativeFunc) {
var nativeFuncName = nativeFunc.name;
try {
new nativeFunc(thrower);
assertUnreachable(nativeFuncName);
} catch (e) {
assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName);
}
}
// Tests that a native conversion function is included in the
// stack trace.
function testTraceNativeConversion(nativeFunc) {
var nativeFuncName = nativeFunc.name;
try {
nativeFunc(thrower);
assertUnreachable(nativeFuncName);
} catch (e) {
assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName);
}
}
function testOmittedBuiltin(throwing, omitted) {
try {
throwing();
assertUnreachable(omitted);
} catch (e) {
assertTrue(e.stack.indexOf(omitted) < 0, omitted);
}
}
testTrace("testArrayNative", testArrayNative, ["Array.map (native)"]);
testTrace("testNested", testNested, ["at one", "at two", "at three"]);
testTrace("testMethodNameInference", testMethodNameInference, ["at Foo.bar"]);
testTrace("testImplicitConversion", testImplicitConversion, ["at Nirk.valueOf"]);
testTrace("testEval", testEval, ["at Doo (eval at testEval"]);
testTrace("testNestedEval", testNestedEval, ["eval at Inner (eval at Outer"]);
testTrace("testEvalWithSourceURL", testEvalWithSourceURL,
[ "at Doo (res://name:1:18)" ]);
testTrace("testNestedEvalWithSourceURL", testNestedEvalWithSourceURL,
[" at Inner (res://inner-eval:1:20)",
" at Outer (res://outer-eval:1:37)"]);
testTrace("testValue", testValue, ["at Number.causeError"]);
testTrace("testConstructor", testConstructor, ["new Plonk"]);
testTrace("testRenamedMethod", testRenamedMethod, ["Wookie.a$b$c$d [as d]"]);
testTrace("testAnonymousMethod", testAnonymousMethod, ["Array.<anonymous>"]);
testTrace("testDefaultCustomError", testDefaultCustomError,
["hep-hey", "new CustomError"],
["collectStackTrace"]);
testTrace("testStrippedCustomError", testStrippedCustomError, ["hep-hey"],
["new CustomError", "collectStackTrace"]);
testTrace("testClassNames", testClassNames,
["new MyObj", "MyObjCreator.Create"], ["as Create"]);
testCallerCensorship();
testUnintendedCallerCensorship();
testErrorsDuringFormatting();
testTraceNativeConversion(String); // Does ToString on argument.
testTraceNativeConversion(Number); // Does ToNumber on argument.
testTraceNativeConversion(RegExp); // Does ToString on argument.
testTraceNativeConstructor(String); // Does ToString on argument.
testTraceNativeConstructor(Number); // Does ToNumber on argument.
testTraceNativeConstructor(RegExp); // Does ToString on argument.
testTraceNativeConstructor(Date); // Does ToNumber on argument.
// Omitted because QuickSort has builtins object as receiver, and is non-native
// builtin.
testOmittedBuiltin(function(){ [thrower, 2].sort(function (a,b) {
(b < a) - (a < b); });
}, "QuickSort");
// Omitted because ADD from runtime.js is non-native builtin.
testOmittedBuiltin(function(){ thrower + 2; }, "ADD");
var error = new Error();
error.toString = function() { assertUnreachable(); };
error.stack;
error = new Error();
error.name = { toString: function() { assertUnreachable(); }};
error.message = { toString: function() { assertUnreachable(); }};
error.stack;
error = new Error();
Array.prototype.push = function(x) { assertUnreachable(); };
Array.prototype.join = function(x) { assertUnreachable(); };
error.stack;
var fired = false;
error = new Error({ toString: function() { fired = true; } });
assertTrue(fired);
error.stack;
assertTrue(fired);
//Check that throwing exception in a custom stack trace formatting function
//does not lead to recursion.
Error.prepareStackTrace = function() { throw new Error("abc"); }
var message;
try {
throw new Error();
} catch (e) {
message = e.message;
}
assertEquals("abc", message);