| // 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); |
| |
| // Test that modifying Error.prepareStackTrace by itself works. |
| Error.prepareStackTrace = function() { Error.prepareStackTrace = "custom"; }; |
| new Error(); |
| |
| assertEquals("custom", Error.prepareStackTrace); |