Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use hookCreateScript method in istanbul

Best JavaScript code snippet using istanbul

hook.js

Source:hook.js

...128 *  `vm.createScript`. Should return the transformed code.129 * @param options {Object} options Optional.130 * @param {Boolean} [options.verbose] write a line to standard error every time the transformer is called131 */132function hookCreateScript(matcher, transformer, opts) {133    opts = opts || {};134    var fn = transformFn(matcher, transformer, opts.verbose);135    vm.createScript = function (code, file) {136        var ret = fn(code, file);137        return originalCreateScript(ret.code, file);138    };139}140/**141 * unhooks vm.createScript, restoring it to its original state.142 * @method unhookCreateScript143 * @static144 */145function unhookCreateScript() {146    vm.createScript = originalCreateScript;147}148/**149 * hooks `vm.runInThisContext` to return transformed code.150 * @method hookRunInThisContext151 * @static152 * @param matcher {Function(filePath)} a function that is called with the filename passed to `vm.createScript`153 *  Should return a truthy value when transformations need to be applied to the code, a falsy value otherwise154 * @param transformer {Function(code, filePath)} a function called with the original code and the filename passed to155 *  `vm.createScript`. Should return the transformed code.156 * @param options {Object} options Optional.157 * @param {Boolean} [options.verbose] write a line to standard error every time the transformer is called158 */159function hookRunInThisContext(matcher, transformer, opts) {...

test_istanbul-lib-hook.js

Source:test_istanbul-lib-hook.js

...15	extensions: ['.js'],16	postLoadHook: (filename: string) => {}17});18retVal();19hookCreateScript(matcher, transformer, {});20hookCreateScript(matcher, transformer, { verbose: true });21unhookCreateScript();22hookRunInThisContext(matcher, transformer, {});23hookRunInThisContext(matcher, transformer, { verbose: true });24unhookRunInThisContext();...

Using AI Code Generation

1var istanbul = require('istanbul');2var instrumenter = new istanbul.Instrumenter();3var hook = istanbul.hook;4hook.hookCreateScript(instrumenter.instrumentSync.bind(instrumenter));5var codeToInstrument = "var a = 1; var b = 2; var c = a + b;";6var instrumentedCode = instrumenter.instrumentSync(codeToInstrument, 'test.js');7console.log(instrumentedCode);8hook.unhookCreateScript();9var instrumentedCodeWithoutHook = instrumenter.instrumentSync(codeToInstrument, 'test.js');10console.log(instrumentedCodeWithoutHook);11var a = 1; var b = 2; var c = a + b;var a = 1; var b = 2; var c = a + b;

Using AI Code Generation

1var assert = require('assert');2var a = 1;3assert.equal(a, 1);4console.log('test.js is executed');5var assert = require('assert');6var a = 2;7assert.equal(a, 2);8console.log('test2.js is executed');9var assert = require('assert');10var a = 3;11assert.equal(a, 3);12console.log('test3.js is executed');13var assert = require('assert');14var a = 4;15assert.equal(a, 4);16console.log('test4.js is executed');17var assert = require('assert');18var a = 5;19assert.equal(a, 5);20console.log('test5.js is executed');21console.log('test6.js is executed');22console.log('test7.js is executed');23console.log('test8.js is executed');24console.log('test9.js is executed');25console.log('test10.js is executed');26console.log('test11.js is executed');27console.log('test12.js is executed');28console.log('test13.js is executed');29console.log('test14.js is executed');30console.log('test15.js is executed');31console.log('test16.js is executed');32console.log('test17.js is executed');33console.log('test18.js is executed');34console.log('test19.js is executed');35console.log('test20.js is executed');36console.log('test21.js is executed');

Using AI Code Generation

1var istanbul = require('istanbul');2var instrumenter = new istanbul.Instrumenter();3var hook = istanbul.hook;4hook.hookCreateScript(instrumenter.instrumentSync.bind(instrumenter));5require('./src.js');6function add(a, b) {7  return a + b;8}9add(1, 2);10{11  "path/to/test.js": {12    "path/to/src.js": {13      "path/to/src.js": {14        "s": {15        },16        "b": {},17        "f": {18        },19        "fnMap": {20          "1": {21            "loc": {22              "start": {23              },24              "end": {25              }26            }27          },28          "2": {29            "name": "(anonymous_2)",30            "loc": {31              "start": {32              },33              "end": {34              }35            }36          }37        },38        "statementMap": {39          "1": {40            "start": {41            },42            "end": {43            }44          },45          "2": {46            "start": {47            },48            "end": {49            }50          },51          "3": {52            "start": {53            },54            "end": {55            }56          },57          "4": {

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.