How to use stackTrace method in Puppeteer

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stacktrace_test.js

Source:stacktrace_test.js Github

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1// Copyright 2009 The Closure Library Authors. All Rights Reserved.2//3// Licensed under the Apache License, Version 2.0 (the "License");4// you may not use this file except in compliance with the License.5// You may obtain a copy of the License at6//7// http://www.apache.org/licenses/LICENSE-2.08//9// Unless required by applicable law or agreed to in writing, software10// distributed under the License is distributed on an "AS-IS" BASIS,11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.12// See the License for the specific language governing permissions and13// limitations under the License.14goog.provide('goog.testing.stacktraceTest');15goog.setTestOnly('goog.testing.stacktraceTest');16goog.require('goog.functions');17goog.require('goog.string');18goog.require('goog.testing.ExpectedFailures');19goog.require('goog.testing.PropertyReplacer');20goog.require('goog.testing.StrictMock');21goog.require('goog.testing.asserts');22goog.require('goog.testing.jsunit');23goog.require('goog.testing.stacktrace');24goog.require('goog.testing.stacktrace.Frame');25goog.require('goog.userAgent');26var stubs = new goog.testing.PropertyReplacer();27var expectedFailures;28function setUpPage() {29 expectedFailures = new goog.testing.ExpectedFailures();30}31function setUp() {32 stubs.set(goog.testing.stacktrace, 'isClosureInspectorActive_', function() {33 return false;34 });35}36function tearDown() {37 stubs.reset();38 expectedFailures.handleTearDown();39}40function testParseStackFrameInV8() {41 var frameString = ' at Error (unknown source)';42 var frame = goog.testing.stacktrace.parseStackFrame_(frameString);43 var expected = new goog.testing.stacktrace.Frame('', 'Error', '', '');44 assertObjectEquals('exception name only', expected, frame);45 frameString = ' at Object.assert (file:///.../asserts.js:29:10)';46 frame = goog.testing.stacktrace.parseStackFrame_(frameString);47 expected = new goog.testing.stacktrace.Frame(48 'Object', 'assert', '', 'file:///.../asserts.js:29:10');49 assertObjectEquals('context object + function name + url', expected, frame);50 frameString = ' at Object.x.y.z (/Users/bob/file.js:564:9)';51 frame = goog.testing.stacktrace.parseStackFrame_(frameString);52 expected = new goog.testing.stacktrace.Frame(53 'Object.x.y', 'z', '', '/Users/bob/file.js:564:9');54 assertObjectEquals(55 'nested context object + function name + url', expected, frame);56 frameString = ' at http://www.example.com/jsunit.js:117:13';57 frame = goog.testing.stacktrace.parseStackFrame_(frameString);58 expected = new goog.testing.stacktrace.Frame(59 '', '', '', 'http://www.example.com/jsunit.js:117:13');60 assertObjectEquals('url only', expected, frame);61 frameString = ' at [object Object].exec [as execute] (file:///foo)';62 frame = goog.testing.stacktrace.parseStackFrame_(frameString);63 expected = new goog.testing.stacktrace.Frame(64 '[object Object]', 'exec', 'execute', 'file:///foo');65 assertObjectEquals('function alias', expected, frame);66 frameString = ' at new Class (file:///foo)';67 frame = goog.testing.stacktrace.parseStackFrame_(frameString);68 expected =69 new goog.testing.stacktrace.Frame('', 'new Class', '', 'file:///foo');70 assertObjectEquals('constructor call', expected, frame);71 frameString = ' at new <anonymous> (file:///foo)';72 frame = goog.testing.stacktrace.parseStackFrame_(frameString);73 expected = new goog.testing.stacktrace.Frame(74 '', 'new <anonymous>', '', 'file:///foo');75 assertObjectEquals('anonymous constructor call', expected, frame);76 frameString = ' at Array.forEach (native)';77 frame = goog.testing.stacktrace.parseStackFrame_(frameString);78 expected = new goog.testing.stacktrace.Frame('Array', 'forEach', '', '');79 assertObjectEquals('native function call', expected, frame);80 frameString = ' at foo (eval at file://bar)';81 frame = goog.testing.stacktrace.parseStackFrame_(frameString);82 expected =83 new goog.testing.stacktrace.Frame('', 'foo', '', 'eval at file://bar');84 assertObjectEquals('eval', expected, frame);85 frameString = ' at foo.bar (closure/goog/foo.js:11:99)';86 frame = goog.testing.stacktrace.parseStackFrame_(frameString);87 expected = new goog.testing.stacktrace.Frame(88 'foo', 'bar', '', 'closure/goog/foo.js:11:99');89 assertObjectEquals('Path without schema', expected, frame);90 // In the Chrome console, execute: console.log(eval('Error().stack')).91 frameString =92 ' at eval (eval at <anonymous> (unknown source), <anonymous>:1:1)';93 frame = goog.testing.stacktrace.parseStackFrame_(frameString);94 expected = new goog.testing.stacktrace.Frame(95 '', 'eval', '', 'eval at <anonymous> (unknown source), <anonymous>:1:1');96 assertObjectEquals('nested eval', expected, frame);97}98function testParseStackFrameInOpera() {99 var frameString = '@';100 var frame = goog.testing.stacktrace.parseStackFrame_(frameString);101 var expected = new goog.testing.stacktrace.Frame('', '', '', '');102 assertObjectEquals('empty frame', expected, frame);103 frameString = '@javascript:console.log(Error().stack):1';104 frame = goog.testing.stacktrace.parseStackFrame_(frameString);105 expected = new goog.testing.stacktrace.Frame(106 '', '', '', 'javascript:console.log(Error().stack):1');107 assertObjectEquals('javascript path only', expected, frame);108 frameString = '@file:///foo:42';109 frame = goog.testing.stacktrace.parseStackFrame_(frameString);110 expected = new goog.testing.stacktrace.Frame('', '', '', 'file:///foo:42');111 assertObjectEquals('path only', expected, frame);112 // (function go() { throw Error() })()113 // var c = go; c()114 frameString = 'go([arguments not available])@';115 frame = goog.testing.stacktrace.parseStackFrame_(frameString);116 expected = new goog.testing.stacktrace.Frame('', 'go', '', '');117 assertObjectEquals('name and empty path', expected, frame);118 frameString = 'go([arguments not available])@file:///foo:42';119 frame = goog.testing.stacktrace.parseStackFrame_(frameString);120 expected = new goog.testing.stacktrace.Frame('', 'go', '', 'file:///foo:42');121 assertObjectEquals('name and path', expected, frame);122 // (function() { throw Error() })()123 frameString =124 '<anonymous function>([arguments not available])@file:///foo:42';125 frame = goog.testing.stacktrace.parseStackFrame_(frameString);126 expected = new goog.testing.stacktrace.Frame('', '', '', 'file:///foo:42');127 assertObjectEquals('anonymous function', expected, frame);128 // var b = {foo: function() { throw Error() }}129 frameString = '<anonymous function: foo>()@file:///foo:42';130 frame = goog.testing.stacktrace.parseStackFrame_(frameString);131 expected = new goog.testing.stacktrace.Frame('', 'foo', '', 'file:///foo:42');132 assertObjectEquals('object literal function', expected, frame);133 // var c = {}; c.foo = function() { throw Error() }134 frameString = '<anonymous function: c.foo>()@file:///foo:42';135 frame = goog.testing.stacktrace.parseStackFrame_(frameString);136 expected =137 new goog.testing.stacktrace.Frame('c', 'foo', '', 'file:///foo:42');138 assertObjectEquals('named object literal function', expected, frame);139 frameString = '<anonymous function: Foo.prototype.bar>()@';140 frame = goog.testing.stacktrace.parseStackFrame_(frameString);141 expected = new goog.testing.stacktrace.Frame('Foo.prototype', 'bar', '', '');142 assertObjectEquals('prototype function', expected, frame);143 frameString = '<anonymous function: goog.Foo.prototype.bar>()@';144 frame = goog.testing.stacktrace.parseStackFrame_(frameString);145 expected =146 new goog.testing.stacktrace.Frame('goog.Foo.prototype', 'bar', '', '');147 assertObjectEquals('namespaced prototype function', expected, frame);148}149// All test strings are parsed with the conventional and long150// frame algorithms.151function testParseStackFrameInFirefox() {152 var frameString = 'Error("Assertion failed")@:0';153 var frame = goog.testing.stacktrace.parseStackFrame_(frameString);154 var expected = new goog.testing.stacktrace.Frame('', 'Error', '', '');155 assertObjectEquals('function name + arguments', expected, frame);156 frameString = '()@file:///foo:42';157 frame = goog.testing.stacktrace.parseStackFrame_(frameString);158 expected = new goog.testing.stacktrace.Frame('', '', '', 'file:///foo:42');159 assertObjectEquals('anonymous function', expected, frame);160 frameString = '@javascript:alert(0)';161 frame = goog.testing.stacktrace.parseStackFrame_(frameString);162 expected =163 new goog.testing.stacktrace.Frame('', '', '', 'javascript:alert(0)');164 assertObjectEquals('anonymous function', expected, frame);165}166// All test strings are parsed with the conventional and long167// frame algorithms.168function testParseStackFrameInFirefoxWithQualifiedName() {169 var frameString = 'ns.method@http://some.thing/a.js:1:2';170 var frame = goog.testing.stacktrace.parseStackFrame_(frameString);171 var expected = new goog.testing.stacktrace.Frame(172 '', 'ns.method', '', 'http://some.thing/a.js:1:2');173 assertObjectEquals('anonymous function', expected, frame);174}175function testCanonicalizeFrame() {176 var frame = new goog.testing.stacktrace.Frame(177 '<window>', 'foo', 'bar', 'http://x?a=1&b=2:1');178 assertEquals(179 'canonical stack frame, everything is escaped', '&lt;window&gt;.foo ' +180 '[as bar] at http://x?a=1&amp;b=2:1',181 frame.toCanonicalString());182}183function testDeobfuscateFunctionName() {184 goog.testing.stacktrace.setDeobfuscateFunctionName(function(name) {185 return name.replace(/\$/g, '.');186 });187 var frame = new goog.testing.stacktrace.Frame('', 'a$b$c', 'd$e', '');188 assertEquals(189 'deobfuscated function name', 'a.b.c [as d.e]',190 frame.toCanonicalString());191}192function testFramesToString() {193 var normalFrame = new goog.testing.stacktrace.Frame('', 'foo', '', '');194 var anonFrame = new goog.testing.stacktrace.Frame('', '', '', '');195 var frames = [normalFrame, anonFrame, null, anonFrame];196 var stack = goog.testing.stacktrace.framesToString_(frames);197 assertEquals('framesToString', '> foo\n> anonymous\n> (unknown)\n', stack);198}199function testFollowCallChain() {200 var func = function(var_args) {201 return goog.testing.stacktrace.followCallChain_();202 };203 // Created a fake type with a toString method.204 function LocalType(){};205 LocalType.prototype.toString = function() { return 'sg'; };206 // Create a mock with no expectations.207 var mock = new goog.testing.StrictMock(LocalType);208 mock.$replay();209 var frames = func(210 undefined, null, false, 0, '', {}, goog.nullFunction, mock,211 new LocalType);212 // Opera before version 10 doesn't support the caller attribute. In that213 // browser followCallChain_() returns empty stack trace.214 expectedFailures.expectFailureFor(215 goog.userAgent.OPERA && !goog.userAgent.isVersionOrHigher('10'));216 try {217 assertTrue('The stack trace consists of >=2 frames', frames.length >= 2);218 } catch (e) {219 expectedFailures.handleException(e);220 }221 if (frames.length >= 2) {222 assertEquals('innermost function is anonymous', '', frames[0].getName());223 // There are white space differences how browsers convert functions to224 // strings.225 assertEquals(226 'test function name', 'testFollowCallChain', frames[1].getName());227 }228 mock.$verify();229}230// Create a stack trace string with one modest record and one long record,231// Verify that all frames are parsed. The length of the long arg is set232// to blow Firefox 3x's stack if put through a RegExp.233function testParsingLongStackTrace() {234 var longArg =235 goog.string.buildString('(', goog.string.repeat('x', 1000000), ')');236 var stackTrace = goog.string.buildString(237 'shortFrame()@:0\n', 'longFrame', longArg,238 '@http://google.com/somescript:0\n');239 var frames = goog.testing.stacktrace.parse_(stackTrace);240 assertEquals('number of returned frames', 2, frames.length);241 var expected = new goog.testing.stacktrace.Frame('', 'shortFrame', '', '');242 assertObjectEquals('short frame', expected, frames[0]);243 assertNull('exception no frame', frames[1]);244}245function testParseStackFrameInIE10() {246 var frameString = ' at foo (http://bar:4000/bar.js:150:3)';247 var frame = goog.testing.stacktrace.parseStackFrame_(frameString);248 var expected = new goog.testing.stacktrace.Frame(249 '', 'foo', '', 'http://bar:4000/bar.js:150:3');250 assertObjectEquals('name and path', expected, frame);251 frameString = ' at Anonymous function (http://bar:4000/bar.js:150:3)';252 frame = goog.testing.stacktrace.parseStackFrame_(frameString);253 expected = new goog.testing.stacktrace.Frame(254 '', 'Anonymous function', '', 'http://bar:4000/bar.js:150:3');255 assertObjectEquals('Anonymous function', expected, frame);256 frameString = ' at Global code (http://bar:4000/bar.js:150:3)';257 frame = goog.testing.stacktrace.parseStackFrame_(frameString);258 expected = new goog.testing.stacktrace.Frame(259 '', 'Global code', '', 'http://bar:4000/bar.js:150:3');260 assertObjectEquals('Global code', expected, frame);261 frameString = ' at foo (eval code:150:3)';262 frame = goog.testing.stacktrace.parseStackFrame_(frameString);263 expected =264 new goog.testing.stacktrace.Frame('', 'foo', '', 'eval code:150:3');265 assertObjectEquals('eval code', expected, frame);266 frameString = ' at eval code (eval code:150:3)';267 frame = goog.testing.stacktrace.parseStackFrame_(frameString);268 expected =269 new goog.testing.stacktrace.Frame('', 'eval code', '', 'eval code:150:3');270 assertObjectEquals('nested eval', expected, frame);271}272function testParseStackFrameInIE11() {273 var frameString = ' at a.b.c (Unknown script code:150:3)';274 var frame = goog.testing.stacktrace.parseStackFrame_(frameString);275 var expected = new goog.testing.stacktrace.Frame(276 '', 'a.b.c', '', 'Unknown script code:150:3');277 assertObjectEquals('name and path', expected, frame);278}279function testParseStackFrameInEdge() {280 frameString = ' at a.b.c (http://host.com:80/some/file.js:101:2)';281 frame = goog.testing.stacktrace.parseStackFrame_(frameString);282 expected = new goog.testing.stacktrace.Frame(283 '', 'a.b.c', '', 'http://host.com:80/some/file.js:101:2');284 assertObjectEquals(expected, frame);285}286// Verifies that retrieving the stack trace works when the 'stack' field of an287// exception contains an array of CallSites instead of a string. This is the288// case when running in a lightweight V8 runtime (for instance, in gjstests),289// as opposed to a browser environment.290function testGetStackFrameWithV8CallSites() {291 // A function to create V8 CallSites. Note that CallSite is an extern and thus292 // cannot be mocked with closure mocks.293 function createCallSite(functionName, fileName, lineNumber, colNumber) {294 return {295 getFunctionName: goog.functions.constant(functionName),296 getFileName: goog.functions.constant(fileName),297 getLineNumber: goog.functions.constant(lineNumber),298 getColumnNumber: goog.functions.constant(colNumber)299 };300 }301 // Mock the goog.testing.stacktrace.getStack_ function, which normally302 // triggers an exception for the purpose of reading and returning its stack303 // trace. Here, pretend that V8 provided an array of CallSites instead of the304 // string that browsers provide.305 stubs.set(goog.testing.stacktrace, 'getNativeStack_', function() {306 return [307 createCallSite('fn1', 'file1', 1, 2),308 createCallSite('fn2', 'file2', 3, 4), createCallSite('fn3', 'file3', 5, 6)309 ];310 });311 // Retrieve the stacktrace. This should translate the array of CallSites into312 // a single multi-line string.313 var stackTrace = goog.testing.stacktrace.get();314 // Make sure the stack trace was translated correctly.315 var frames = stackTrace.split('\n');316 assertEquals(frames[0], '> fn1 at file1:1:2');317 assertEquals(frames[1], '> fn2 at file2:3:4');318 assertEquals(frames[2], '> fn3 at file3:5:6');...

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stacktrace.js

Source:stacktrace.js Github

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1goog.provide('goog.testing.stacktrace'); 2goog.provide('goog.testing.stacktrace.Frame'); 3goog.testing.stacktrace.Frame = function(context, name, alias, args, path) { 4 this.context_ = context; 5 this.name_ = name; 6 this.alias_ = alias; 7 this.args_ = args; 8 this.path_ = path; 9}; 10goog.testing.stacktrace.Frame.prototype.getName = function() { 11 return this.name_; 12}; 13goog.testing.stacktrace.Frame.prototype.isAnonymous = function() { 14 return ! this.name_ || this.context_ == '[object Object]'; 15}; 16goog.testing.stacktrace.Frame.prototype.toCanonicalString = function() { 17 var htmlEscape = goog.testing.stacktrace.htmlEscape_; 18 var deobfuscate = goog.testing.stacktrace.maybeDeobfuscateFunctionName_; 19 var canonical =[this.context_ ? htmlEscape(this.context_) + '.': '', this.name_ ? htmlEscape(deobfuscate(this.name_)): 'anonymous', htmlEscape(this.args_), this.alias_ ? ' [as ' + htmlEscape(deobfuscate(this.alias_)) + ']': '']; 20 if(this.path_) { 21 canonical.push(' at '); 22 if(goog.testing.stacktrace.isClosureInspectorActive_()) { 23 var lineNumber = this.path_.match(/\d+$/)[0]; 24 canonical.push('<a href="" onclick="CLOSURE_INSPECTOR___.showLine(\'', htmlEscape(this.path_), '\', \'', lineNumber, '\'); return false">', htmlEscape(this.path_), '</a>'); 25 } else { 26 canonical.push(htmlEscape(this.path_)); 27 } 28 } 29 return canonical.join(''); 30}; 31goog.testing.stacktrace.MAX_DEPTH_ = 20; 32goog.testing.stacktrace.MAX_FIREFOX_FRAMESTRING_LENGTH_ = 500000; 33goog.testing.stacktrace.IDENTIFIER_PATTERN_ = '[a-zA-Z_$][\\w$]*'; 34goog.testing.stacktrace.CHROME_ALIAS_PATTERN_ = '(?: \\[as (' + goog.testing.stacktrace.IDENTIFIER_PATTERN_ + ')\\])?'; 35goog.testing.stacktrace.CHROME_FUNCTION_NAME_PATTERN_ = '(?:new )?(?:' + goog.testing.stacktrace.IDENTIFIER_PATTERN_ + '|<anonymous>)'; 36goog.testing.stacktrace.CHROME_FUNCTION_CALL_PATTERN_ = ' (?:(.*?)\\.)?(' + goog.testing.stacktrace.CHROME_FUNCTION_NAME_PATTERN_ + ')' + goog.testing.stacktrace.CHROME_ALIAS_PATTERN_; 37goog.testing.stacktrace.URL_PATTERN_ = '((?:http|https|file)://[^\\s)]+|javascript:.*)'; 38goog.testing.stacktrace.CHROME_URL_PATTERN_ = ' (?:' + '\\(unknown source\\)' + '|' + '\\(native\\)' + '|' + '\\((?:eval at )?' + goog.testing.stacktrace.URL_PATTERN_ + '\\)' + '|' + goog.testing.stacktrace.URL_PATTERN_ + ')'; 39goog.testing.stacktrace.CHROME_STACK_FRAME_REGEXP_ = new RegExp('^ at' + '(?:' + goog.testing.stacktrace.CHROME_FUNCTION_CALL_PATTERN_ + ')?' + goog.testing.stacktrace.CHROME_URL_PATTERN_ + '$'); 40goog.testing.stacktrace.FIREFOX_FUNCTION_CALL_PATTERN_ = '(' + goog.testing.stacktrace.IDENTIFIER_PATTERN_ + ')?' + '(\\(.*\\))?@'; 41goog.testing.stacktrace.FIREFOX_STACK_FRAME_REGEXP_ = new RegExp('^' + goog.testing.stacktrace.FIREFOX_FUNCTION_CALL_PATTERN_ + '(?::0|' + goog.testing.stacktrace.URL_PATTERN_ + ')$'); 42goog.testing.stacktrace.FUNCTION_SOURCE_REGEXP_ = new RegExp('^function (' + goog.testing.stacktrace.IDENTIFIER_PATTERN_ + ')'); 43goog.testing.stacktrace.followCallChain_ = function() { 44 var frames =[]; 45 var fn = arguments.callee.caller; 46 var depth = 0; 47 while(fn && depth < goog.testing.stacktrace.MAX_DEPTH_) { 48 var fnString = Function.prototype.toString.call(fn); 49 var match = fnString.match(goog.testing.stacktrace.FUNCTION_SOURCE_REGEXP_); 50 var functionName = match ? match[1]: ''; 51 var argsBuilder =['(']; 52 if(fn.arguments) { 53 for(var i = 0; i < fn.arguments.length; i ++) { 54 var arg = fn.arguments[i]; 55 if(i > 0) { 56 argsBuilder.push(', '); 57 } 58 if(goog.isString(arg)) { 59 argsBuilder.push('"', arg, '"'); 60 } else { 61 if(arg && arg['$replay']) { 62 argsBuilder.push('goog.testing.Mock'); 63 } else { 64 argsBuilder.push(String(arg)); 65 } 66 } 67 } 68 } else { 69 argsBuilder.push('unknown'); 70 } 71 argsBuilder.push(')'); 72 var args = argsBuilder.join(''); 73 frames.push(new goog.testing.stacktrace.Frame('', functionName, '', args, '')); 74 try { 75 fn = fn.caller; 76 } catch(e) { 77 break; 78 } 79 depth ++; 80 } 81 return frames; 82}; 83goog.testing.stacktrace.parseStackFrame_ = function(frameStr) { 84 var m = frameStr.match(goog.testing.stacktrace.CHROME_STACK_FRAME_REGEXP_); 85 if(m) { 86 return new goog.testing.stacktrace.Frame(m[1]|| '', m[2]|| '', m[3]|| '', '', m[4]|| m[5]|| ''); 87 } 88 if(frameStr.length > goog.testing.stacktrace.MAX_FIREFOX_FRAMESTRING_LENGTH_) { 89 return goog.testing.stacktrace.parseLongFirefoxFrame_(frameStr); 90 } 91 m = frameStr.match(goog.testing.stacktrace.FIREFOX_STACK_FRAME_REGEXP_); 92 if(m) { 93 return new goog.testing.stacktrace.Frame('', m[1]|| '', '', m[2]|| '', m[3]|| ''); 94 } 95 return null; 96}; 97goog.testing.stacktrace.parseLongFirefoxFrame_ = function(frameStr) { 98 var firstParen = frameStr.indexOf('('); 99 var lastAmpersand = frameStr.lastIndexOf('@'); 100 var lastColon = frameStr.lastIndexOf(':'); 101 var functionName = ''; 102 if((firstParen >= 0) &&(firstParen < lastAmpersand)) { 103 functionName = frameStr.substring(0, firstParen); 104 } 105 var loc = ''; 106 if((lastAmpersand >= 0) &&(lastAmpersand + 1 < lastColon)) { 107 loc = frameStr.substring(lastAmpersand + 1); 108 } 109 var args = ''; 110 if((firstParen >= 0 && lastAmpersand > 0) &&(firstParen < lastAmpersand)) { 111 args = frameStr.substring(firstParen, lastAmpersand); 112 } 113 return new goog.testing.stacktrace.Frame('', functionName, '', args, loc); 114}; 115goog.testing.stacktrace.deobfuscateFunctionName_; 116goog.testing.stacktrace.setDeobfuscateFunctionName = function(fn) { 117 goog.testing.stacktrace.deobfuscateFunctionName_ = fn; 118}; 119goog.testing.stacktrace.maybeDeobfuscateFunctionName_ = function(name) { 120 return goog.testing.stacktrace.deobfuscateFunctionName_ ? goog.testing.stacktrace.deobfuscateFunctionName_(name): name; 121}; 122goog.testing.stacktrace.isClosureInspectorActive_ = function() { 123 return Boolean(goog.global['CLOSURE_INSPECTOR___']&& goog.global['CLOSURE_INSPECTOR___']['supportsJSUnit']); 124}; 125goog.testing.stacktrace.htmlEscape_ = function(text) { 126 return text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;'); 127}; 128goog.testing.stacktrace.framesToString_ = function(frames) { 129 var lastIndex = frames.length - 1; 130 while(frames[lastIndex]&& frames[lastIndex].isAnonymous()) { 131 lastIndex --; 132 } 133 var privateAssertIndex = - 1; 134 for(var i = 0; i < frames.length; i ++) { 135 if(frames[i]&& frames[i].getName() == '_assert') { 136 privateAssertIndex = i; 137 break; 138 } 139 } 140 var canonical =[]; 141 for(var i = privateAssertIndex + 1; i <= lastIndex; i ++) { 142 canonical.push('> '); 143 if(frames[i]) { 144 canonical.push(frames[i].toCanonicalString()); 145 } else { 146 canonical.push('(unknown)'); 147 } 148 canonical.push('\n'); 149 } 150 return canonical.join(''); 151}; 152goog.testing.stacktrace.parse_ = function(stack) { 153 var lines = stack.replace(/\s*$/, '').split('\n'); 154 var frames =[]; 155 for(var i = 0; i < lines.length; i ++) { 156 frames.push(goog.testing.stacktrace.parseStackFrame_(lines[i])); 157 } 158 return frames; 159}; 160goog.testing.stacktrace.canonicalize = function(stack) { 161 var frames = goog.testing.stacktrace.parse_(stack); 162 return goog.testing.stacktrace.framesToString_(frames); 163}; 164goog.testing.stacktrace.get = function() { 165 var stack = new Error().stack; 166 var frames = stack ? goog.testing.stacktrace.parse_(stack): goog.testing.stacktrace.followCallChain_(); 167 return goog.testing.stacktrace.framesToString_(frames); 168}; ...

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DebuggerPresentationUtils.js

Source:DebuggerPresentationUtils.js Github

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1// Copyright 2015 The Chromium Authors. All rights reserved.2// Use of this source code is governed by a BSD-style license that can be3// found in the LICENSE file.4WebInspector.DebuggerPresentationUtils = {}5/**6 * @param {?WebInspector.DebuggerModel} debuggerModel7 * @param {!Array.<!ConsoleAgent.CallFrame>=} stackTrace8 * @param {!ConsoleAgent.AsyncStackTrace=} asyncStackTrace9 * @param {boolean=} showBlackboxed10 * @return {?ConsoleAgent.CallFrame}11 */12WebInspector.DebuggerPresentationUtils.callFrameAnchorFromStackTrace = function(debuggerModel, stackTrace, asyncStackTrace, showBlackboxed)13{14 /**15 * @param {?Array.<!ConsoleAgent.CallFrame>=} stackTrace16 * @return {?ConsoleAgent.CallFrame}17 */18 function innerCallFrameAnchorFromStackTrace(stackTrace)19 {20 if (!stackTrace || !stackTrace.length)21 return null;22 if (showBlackboxed)23 return stackTrace[0];24 for (var i = 0; i < stackTrace.length; ++i) {25 var script = debuggerModel && debuggerModel.scriptForId(stackTrace[i].scriptId);26 var blackboxed = script ?27 WebInspector.BlackboxSupport.isBlackboxed(script.sourceURL, script.isContentScript()) :28 WebInspector.BlackboxSupport.isBlackboxedURL(stackTrace[i].url);29 if (!blackboxed)30 return stackTrace[i];31 }32 return null;33 }34 var callFrame = innerCallFrameAnchorFromStackTrace(stackTrace);35 if (callFrame)36 return callFrame;37 while (asyncStackTrace) {38 callFrame = innerCallFrameAnchorFromStackTrace(asyncStackTrace.callFrames);39 if (callFrame)40 return callFrame;41 asyncStackTrace = asyncStackTrace.asyncStackTrace;42 }43 return stackTrace ? stackTrace[0] : null;...

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch();4 const page = await browser.newPage();5 await page.evaluate(() => {6 console.log('Hello from the browser');7 console.error('Hello from the browser');8 });9 await browser.close();10})();11const puppeteer = require('puppeteer');12(async () => {13 const browser = await puppeteer.launch();14})();15const puppeteer = require('puppeteer');16(async () => {17 const browser = await puppeteer.launch();18 await browser.close();19})();20const puppeteer = require('puppeteer');21(async () => {22 const browser = await puppeteer.launch();23 const page = await browser.newPage();24 await browser.close();25})();26const puppeteer = require('puppeteer');27(async () => {28 const browser = await puppeteer.launch();29 const pages = await browser.pages();30 await browser.close();31})();32const puppeteer = require('puppeteer');33(async () => {34 const browser = await puppeteer.launch();35 const target = await browser.target();36 await browser.close();37})();38const puppeteer = require('puppeteer');39(async () => {40 const browser = await puppeteer.launch();41 const targets = await browser.targets();42 await browser.close();43})();44const puppeteer = require('puppeteer');45(async () => {46 const browser = await puppeteer.launch();

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch();4 const page = await browser.newPage();5 await page.evaluate(() => { throw new Error('This is an error!'); });6 const stackTrace = await page.evaluate(() => { return new Error().stack; });7 console.log(stackTrace);8 await browser.close();9})();10const puppeteer = require('puppeteer');11(async () => {12 const browser = await puppeteer.launch();13 const page = await browser.newPage();14 await page.evaluate(() => { throw new Error('This is an error!'); });15 const stackTrace = await page.evaluate(() => { return new Error().stack; });16 console.log(stackTrace);17 await browser.close();18})();19const puppeteer = require('puppeteer');20(async () => {21 const browser = await puppeteer.launch();22 const page = await browser.newPage();

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch();4 const page = await browser.newPage();5 const stackTrace = await page.evaluate(() => {6 return new Error('this is an error').stack;7 });8 console.log(stackTrace);9 await browser.close();10})();

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2const fs = require('fs');3(async () => {4 const browser = await puppeteer.launch();5 const page = await browser.newPage();6 const stackTrace = await page.evaluate(() => {7 return new Error().stack;8 });9 fs.writeFile('stackTrace.txt', stackTrace, (err) => {10 if (err) throw err;11 console.log('The file has been saved!');12 });13 await browser.close();14})();15 at ExecutionContext._evaluateInternal (/Users/username/stackTrace/node_modules/puppeteer/lib/ExecutionContext.js:122:19)16 at process._tickCallback (internal/process/next_tick.js:68:7)17const stackTrace = await page.evaluate(() => {18 return new Error().stack;19});20const stackTrace = await page.evaluate(() => {21 return new Error().stack;22});23- [Puppeteer GitHub Repository](

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2const fs = require('fs');3const path = require('path');4(async () => {5 const browser = await puppeteer.launch();6 const page = await browser.newPage();7 await page.screenshot({path: 'google.png'});8 await page.evaluate(() => {9 throw new Error('This is an error');10 });11 const stackTrace = await page.evaluate(() => {12 const stack = new Error().stack;13 return stack;14 });15 fs.writeFileSync(path.join(__dirname, 'stackTrace.txt'), stackTrace);16 await browser.close();17})();18const puppeteer = require('puppeteer');19const fs = require('fs');20const path = require('path');21(async () => {22 const browser = await puppeteer.launch();23 const page = await browser.newPage();24 await page.screenshot({path: 'google.png'});25 await page.evaluate(() => {26 throw new Error('This is an error');27 });28 const stackTrace = await page.evaluate(() => {29 const stack = new Error().stack;30 return stack;31 });32 fs.writeFileSync(path.join(__dirname, 'stackTrace.txt'), stackTrace);33 await browser.close();34})();35const puppeteer = require('puppeteer');36const fs = require('fs');37const path = require('path');38(async () => {39 const browser = await puppeteer.launch();40 const page = await browser.newPage();41 await page.screenshot({path: 'google.png'});42 await page.evaluate(() => {43 throw new Error('This is an error');44 });45 const stackTrace = await page.evaluate(() => {46 const stack = new Error().stack;47 return stack;48 });49 fs.writeFileSync(path.join(__dirname, 'stackTrace.txt'), stackTrace);50 await browser.close();51})();52const puppeteer = require('puppeteer');53const fs = require('fs');54const path = require('path');55(async () => {56 const browser = await puppeteer.launch();

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2const fs = require('fs');3(async () => {4const browser = await puppeteer.launch({headless: false, slowMo: 100});5const page = await browser.newPage();6await page.screenshot({path: 'example.png'});7await page.evaluate(() => {8 function foo() {9 bar();10 }11 function bar() {12 baz();13 }14 function baz() {15 console.log('hello from baz');16 throw new Error('oops');17 }18 foo();19});20await page.close();21await browser.close();22})();

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Using AI Code Generation

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1const puppeteer = require('puppeteer');2const fs = require('fs');3(async () => {4 const browser = await puppeteer.launch();5 const page = await browser.newPage();6 const stackTrace = await page.evaluate(() => {7 throw new Error('Error in page.evaluate');8 }).catch(e => e.stack);9 console.log(stackTrace);10 await browser.close();11})();12**puppeteer-extra-plugin-stealth** is a plugin for **puppeteer-extra** that is designed to help prevent detection by headless chrome. It is a fork of [puppeteer-extra-plugin-anonymize-ua](

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