Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use handleEscodegen method in istanbul

Best JavaScript code snippet using istanbul

server.js

Source:server.js

...22function handleEsprima(request, response) {23    response.setHeader('content-type', 'application/javascript');24    response.end(esprimaSource, 'utf8');25}26function handleEscodegen(request, response) {27    response.setHeader('content-type', 'application/javascript');28    response.end(escodegenSource, 'utf8');29}30function handleInstrumenter(request, response) {31    response.setHeader('content-type', 'application/javascript');32    var iPath = path.resolve(__dirname, '..', '..', '..', 'lib', 'instrumenter.js'),33        instrumenterSource = fs.readFileSync(iPath, 'utf8');34    if (server.instrumenter) {35        response.end(server.instrumenter.instrumentSync(instrumenterSource, iPath), 'utf8');36    } else {37        response.end(instrumenterSource, 'utf8');38    }39}40function handleFile(request, response) {41    try {42        var file = path.resolve(server.rootPath, request.url.substring(1)),43            content;44        content = fs.readFileSync(file, 'utf8');45        response.setHeader('content-type', 'text/plain');46        response.end(content, 'utf8');47    } catch (ex) {48        console.error(ex.message);49        response.statusCode = 404;50        response.end();51    }52}53function getData(request, callback) {54    var data = '';55    request.setEncoding('utf8');56    request.on('data', function (rdata) { data += rdata; });57    request.on('end', function () {58        callback(data);59    });60}61function handleInstrumented(request, response) {62    var script,63        ok = true,64        err = null;65    getData(request, function (data) {66        server.emit('instrumented', request.url.substring(1), data);67        try {68            script = vm.createScript(data, request.url);69        } catch (ex) {70            console.error('Invalid JS returned for:' + request.url);71            ok = false;72            err = ex.message || ex.toString();73        }74        response.setHeader('content-type', 'application/json');75        response.end(JSON.stringify({ ok: ok, err: err }), 'utf8');76    });77}78function handleEnd(request, response) {79    var ok = true,80        obj;81    getData(request, function (data) {82        try {83            obj = JSON.parse(data);84        } catch (ex) {85            console.error(ex.message || ex);86            console.error(ex.stack);87            ok = false;88        }89        server.emit('done', obj);90        response.end(JSON.stringify({ ok: ok }, 'utf8'));91    });92}93function handler(request, response) {94    console.log(request.method + ' ' + request.url);95    if (request.method === 'GET') {96        switch (request.url) {97        case '/':98            handleInitialPage(request, response);99            break;100        case '/_esprima.js':101            handleEsprima(request, response);102            break;103        case '/_escodegen.js':104            handleEscodegen(request, response);105            break;106        case '/_instrumenter.js':107            handleInstrumenter(request, response);108            break;109        default:110            handleFile(request, response);111            break;112        }113    } else if (request.method === 'POST') {114        switch (request.url) {115        case '/':116            handleEnd(request, response);117            break;118        default:...

Using AI Code Generation

1var handleEscodegen = require('istanbul').handleEscodegen;2var esprima = require('esprima');3var escodegen = require('escodegen');4var fs = require('fs');5var esprimaOptions = {6};7var escodegenOptions = {8    format: {9        indent: {10        },11    },12    moz: {13    },14};15var code = fs.readFileSync('src.js', 'utf8');16var ast = esprima.parse(code, esprimaOptions);17var coverageVariable = esprima.parse('var coverage = 0;');18ast.body.unshift(coverageVariable);19var coverageCode = esprima.parse('coverage = 1;');20ast.body[ast.body.length - 1].consequent.body.push(coverageCode);21var generatedCode = escodegen.generate(ast, escodegenOptions);22var generatedCodeWithComments = escodegen.generate(ast, escodegenOptions);23var generatedCodeWithCommentsAndCoverage = handleEscodegen(ast, escodegenOptions);24console.log(generatedCode);25console.log(generatedCodeWithComments);26console.log(generatedCodeWithCommentsAndCoverage);27var a = 1;28var b = 2;29var c = 3;30if (a === 1) {31    console.log('a');32} else {33    console.log('b');34}35var a = 1;36var b = 2;

Using AI Code Generation

1var handleEscodegen = require('istanbul').handleEscodegen;2var escodegen = require('escodegen');3var esprima = require('esprima');4var fs = require('fs');5var code = fs.readFileSync('input.js', 'utf8');6var ast = esprima.parse(code);7var output = escodegen.generate(ast, {8    format: {9        indent: {10        }11    },12});13fs.writeFileSync('out.js', output);14fs.writeFileSync('out.js.map', JSON.stringify(escodegen.generate(ast, {15})));16var handleEsprima = require('istanbul').handleEsprima;17var esprima = require('esprima');18var fs = require('fs');19var code = fs.readFileSync('input.js', 'utf8');20var ast = esprima.parse(code);21var output = escodegen.generate(ast, {22    format: {23        indent: {24        }25    },26});27fs.writeFileSync('out.js', output);28fs.writeFileSync('out.js.map', JSON.stringify(escodegen.generate(ast, {29})));

Using AI Code Generation

1var handleEscodegen = require('istanbul-instrumenter-loader/handleEscodegen');2var code = 'var a = 1;';3var instrumentedCode = handleEscodegen(code);4console.log(instrumentedCode);5var handleEsprima = require('istanbul-instrumenter-loader/handleEsprima');6var code = 'var a = 1;';7var instrumentedCode = handleEsprima(code);8console.log(instrumentedCode);9var handleEsprima = require('istanbul-instrumenter-loader/handleEsprima');10var code = 'var a = 1;';11var instrumentedCode = handleEsprima(code);12console.log(instrumentedCode);13var handleEsprima = require('istanbul-instrumenter-loader/handleEsprima');14var code = 'var a = 1;';15var instrumentedCode = handleEsprima(code);16console.log(instrumentedCode);17var handleEsprima = require('istanbul-instrumenter-loader/handleEsprima');18var code = 'var a = 1;';19var instrumentedCode = handleEsprima(code);20console.log(instrumentedCode);21var handleEsprima = require('istanbul-instrumenter-loader/handleEsprima');22var code = 'var a = 1;';23var instrumentedCode = handleEsprima(code);24console.log(instrumentedCode);25var handleEsprima = require('istanbul-in

Using AI Code Generation

1istanbul.handleEscodegen(myCode);2istanbul.handleEsprima(myCode);3istanbul.handleEscodegen(myCode);4istanbul.handleEsprima(myCode);5istanbul.handleEscodegen(myCode);6istanbul.handleEsprima(myCode);7istanbul.handleEscodegen(myCode);8istanbul.handleEsprima(myCode);9istanbul.handleEscodegen(myCode);10istanbul.handleEsprima(myCode);11istanbul.handleEscodegen(myCode);12istanbul.handleEsprima(myCode);13istanbul.handleEscodegen(myCode);14istanbul.handleEsprima(myCode);15istanbul.handleEscodegen(myCode);16istanbul.handleEsprima(myCode);17istanbul.handleEscodegen(myCode);18istanbul.handleEsprima(myCode);19istanbul.handleEscodegen(myCode);20istanbul.handleEsprima(myCode);21istanbul.handleEscodegen(myCode);22istanbul.handleEsprima(myCode);

Using AI Code Generation

1var istanbul = require('istanbul');2var instrumenter = new istanbul.Instrumenter();3var instrumentedCode = instrumenter.instrumentSync('var a = 1; var b = 2; var c = 3;', 'test.js');4console.log(instrumentedCode);5var istanbul = require('istanbul');6var instrumenter = new istanbul.Instrumenter();7var instrumentedCode = instrumenter.instrumentSync('var a = 1; var b = 2; var c = 3;', 'test.js');8console.log(instrumentedCode);9var istanbul = require('istanbul');10var instrumenter = new istanbul.Instrumenter();11var instrumentedCode = instrumenter.instrumentSync('var a = 1; var b = 2; var c = 3;', 'test.js');12console.log(instrumentedCode);13var istanbul = require('istanbul');14var instrumenter = new istanbul.Instrumenter();15var instrumentedCode = instrumenter.instrumentSync('var a = 1; var b = 2; var c = 3;', 'test.js');16console.log(instrumentedCode);17var istanbul = require('istanbul');18var instrumenter = new istanbul.Instrumenter();19var instrumentedCode = instrumenter.instrumentSync('var a = 1; var b = 2; var c = 3;', 'test.js');20console.log(instrumentedCode);21var istanbul = require('istanbul');22var instrumenter = new istanbul.Instrumenter();23var instrumentedCode = instrumenter.instrumentSync('var a = 1; var b = 2; var c = 3;', 'test.js');24console.log(instrumentedCode);

Using AI Code Generation

1var instrumenter = require('istanbul-lib-instrument');2var code = 'function foo(){console.log("foo");}';3var instrumented = instrumenter.instrumentSync(code, 'test.js');4console.log(instrumented);5var instrumenter = require('istanbul-lib-instrument');6var code = 'function foo(){console.log("foo");}';7var instrumented = instrumenter.instrumentSync(code, 'test.js');8console.log(instrumented);9var instrumenter = require('istanbul-lib-instrument');10var code = 'function foo(){console.log("foo");}';11var instrumented = instrumenter.instrumentSync(code, 'test.js');12console.log(instrumented);13var instrumenter = require('istanbul-lib-instrument');14var code = 'function foo(){console.log("foo");}';15var instrumented = instrumenter.instrumentSync(code, 'test.js');16console.log(instrumented);17var instrumenter = require('istanbul-lib-instrument');18var code = 'function foo(){console.log("foo");}';19var instrumented = instrumenter.instrumentSync(code, 'test.js');20console.log(instrumented);21var instrumenter = require('istanbul-lib-instrument');22var code = 'function foo(){console.log("foo");}';23var instrumented = instrumenter.instrumentSync(code, 'test.js');24console.log(instrumented);25var instrumenter = require('istanbul-lib-instrument');26var code = 'function foo(){console.log("foo");}';27var instrumented = instrumenter.instrumentSync(code, 'test.js');28console.log(instrumented);29var instrumenter = require('istanbul-lib-instrument');30var code = 'function foo(){console.log("foo");}';31var instrumented = instrumenter.instrumentSync(code, 'test.js');32console.log(instrumented);33var instrumenter = require('istan

Using AI Code Generation

1var istanbulLibInstrument = require('istanbul-lib-instrument');2var instrumenter = istanbulLibInstrument.createInstrumenter();3var instrumentedCode = instrumenter.instrumentSync(code, 'test.js');4console.log(instrumentedCode);5var handleEscodegen = istanbulLibInstrument.handleEscodegen;6var escodegen = require('escodegen');7var code = 'var x = 1;';8var instrumenter = istanbulLibInstrument.createInstrumenter();9var instrumentedCode = instrumenter.instrumentSync(code, 'test.js');10var ast = esprima.parse(instrumentedCode);11var instrumentedCode2 = escodegen.generate(ast, {12    format: {13        indent: {14        }15    },16});17console.log(instrumentedCode2);18var instrumenter = istanbulLibInstrument.createInstrumenter();19var instrumentedCode = instrumenter.instrumentSync(code, 'test.js');20var ast = esprima.parse(instrumentedCode);21var instrumentedCode2 = handleEscodegen(ast, {22    format: {23        indent: {24        }25    },26});27console.log(instrumentedCode2);

Using AI Code Generation

1var istanbulAPI = require('istanbul-api');2var code = 'var a=1;';3var instrumentedCode = istanbulAPI.instrumenter().instrumentSync(code, 'test.js');4var escodegen = require('escodegen');5var esprima = require('esprima');6var ast = esprima.parse(instrumentedCode);7var result = escodegen.generate(ast);8console.log(result);9var escodegen = require('escodegen');10var esprima = require('esprima');11var code = 'var a=1;';12var ast = esprima.parse(code);13var result = escodegen.generate(ast);14console.log(result);15var _a = 1;16var a = 1;17var _a = 1;

Using AI Code Generation

1var instrumenter = require('istanbul-lib-instrument').createInstrumenter();2var fs = require('fs');3var code = fs.readFileSync('test.js');4var instrumentedCode = instrumenter.instrumentSync(code, 'test.js');5fs.writeFileSync('test-instrumented.js', instrumentedCode);6var instrumenter = require('istanbul-lib-instrument').createInstrumenter();7var fs = require('fs');8var code = fs.readFileSync('test.js');9var instrumentedCode = instrumenter.instrumentSync(code, 'test.js');10fs.writeFileSync('test-instrumented.js', instrumentedCode);11var instrumenter = require('istanbul-lib-instrument').createInstrumenter();12var fs = require('fs');13var code = fs.readFileSync('test.js');14var instrumentedCode = instrumenter.instrumentSync(code, 'test.js');15fs.writeFileSync('test-instrumented.js', instrumentedCode);16var instrumenter = require('istanbul-lib-instrument').createInstrumenter();17var fs = require('fs');18var code = fs.readFileSync('test.js');19var instrumentedCode = instrumenter.instrumentSync(code, 'test.js');20fs.writeFileSync('test-instrumented.js', instrumentedCode);21var instrumenter = require('istanbul-lib-instrument').createInstrumenter();22var fs = require('fs');23var code = fs.readFileSync('test.js');24var instrumentedCode = instrumenter.instrumentSync(code, 'test.js');25fs.writeFileSync('test-instrumented.js', instrumentedCode);26var instrumenter = require('istanbul-lib-instrument').createInstrumenter();27var fs = require('fs');28var code = fs.readFileSync('test.js');29var instrumentedCode = instrumenter.instrumentSync(code,

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.