Discover AI-native insights at Testμ Conference‘25

How to use createJSAst method in stryker-parent

Best JavaScript code snippet using stryker-parent

html-printer.spec.ts

...18  });19  it('should replace a single script', () => {20    // Arrange21    const expectedScriptContent = 'foo = bar;';22    const jsScript = createJSAst({23      rawContent: expectedScriptContent,24    });25    contextStub.print.returns(expectedScriptContent);26    offsetLocations(jsScript.root, { column: 13, line: 1, position: 14 });27    const actualHtml = '<html><script>foo = baz;</script></html>';28    const expectedHtml = /<html><script>.*foo = bar;.*<\/script><\/html>/s;29    const ast = createHtmlAst({ rawContent: actualHtml, root: { scripts: [jsScript] } });30    // Act31    const output = print(ast, contextStub);32    // Assert33    expect(output).match(expectedHtml);34    expect(contextStub.print).calledOnce;35    expect(contextStub.print).calledWith(jsScript, contextStub);36  });37  it('should replace multiple scripts', () => {38    // Arrange39    const expectedScriptContent = ['foo = bar;', 'qux = quux;'];40    const scripts = [createJSAst({ rawContent: '1' }), createJSAst({ rawContent: '2' })];41    contextStub.print42      .withArgs(scripts[0], sinon.match.any)43      .returns(expectedScriptContent[0])44      .withArgs(scripts[1], sinon.match.any)45      .returns(expectedScriptContent[1]);46    scripts[0].root.start = 14;47    scripts[0].root.end = 15;48    scripts[1].root.start = 32;49    scripts[1].root.end = 33;50    const input = '<html><script>1</script><script>2</script></html>';51    const expectedOutput = /<html><script>.*foo = bar.*<\/script><script>.*qux = quux;.*<\/script><\/html>/s;52    const ast = createHtmlAst({ rawContent: input, root: { scripts } });53    // Act54    const output = print(ast, contextStub);55    // Assert56    expect(output).match(expectedOutput);57    expect(contextStub.print).calledTwice;58  });59  it('should output order scripts correctly', () => {60    // Arrange61    const expectedScriptContent = ['foo = bar;', 'qux = quux;'];62    const scripts = [createJSAst({ rawContent: '1' }), createJSAst({ rawContent: '2' })];63    contextStub.print64      .withArgs(scripts[0], sinon.match.any)65      .returns(expectedScriptContent[0])66      .withArgs(scripts[1], sinon.match.any)67      .returns(expectedScriptContent[1]);68    scripts[1].root.start = 14;69    scripts[1].root.end = 15;70    scripts[0].root.start = 32;71    scripts[0].root.end = 33;72    const input = '<html><script>1</script><script>2</script></html>';73    const expectedOutput = /<html><script>.*qux = quux;.*<\/script><script>.*foo = bar;.*<\/script><\/html>/s;74    const ast = createHtmlAst({ rawContent: input, root: { scripts } });75    // Act76    const output = print(ast, contextStub);...

Using AI Code Generation

1const fs = require('fs');2const path = require('path');3const { createJSAst } = require('stryker-parent');4const file = fs.readFileSync(path.resolve(__dirname, 'test.js'), 'utf8');5const ast = createJSAst(file);6console.log(ast);7const fs = require('fs');8const path = require('path');9const { createJSAst } = require('stryker-parent');10const file = fs.readFileSync(path.resolve(__dirname, 'test.js'), 'utf8');11const ast = createJSAst(file);12console.log(ast);13const fs = require('fs');14const path = require('path');15const { createJSAst } = require('stryker-parent');16const file = fs.readFileSync(path.resolve(__dirname, 'test.js'), 'utf8');17const ast = createJSAst(file);18console.log(ast);19const fs = require('fs');20const path = require('path');21const { createJSAst } = require('stryker-parent');22const file = fs.readFileSync(path.resolve(__dirname, 'test.js'), 'utf8');23const ast = createJSAst(file);24console.log(ast);25const fs = require('fs');26const path = require('path');27const { createJSAst } = require('stryker-parent');28const file = fs.readFileSync(path.resolve(__dirname, 'test.js'), 'utf8');29const ast = createJSAst(file);30console.log(ast);31const fs = require('fs');32const path = require('path');33const { createJSAst } = require('stryker-parent');34const file = fs.readFileSync(path.resolve(__dirname, 'test.js'), 'utf8');35const ast = createJSAst(file);36console.log(ast);37const fs = require('fs');38const path = require('path');39const { createJSA

Using AI Code Generation

1const {createJSAst} = require('stryker-parent');2const ast = createJSAst('test.js', 'var x = 1;');3console.log(JSON.stringify(ast, null, 2));4const {createJSAst} = require('stryker');5const ast = createJSAst('test.js', 'var x = 1;');6console.log(JSON.stringify(ast, null, 2));7const {createJSAst} = require('stryker/src/utils/astUtils');

Using AI Code Generation

1const { createJSAst } = require('stryker-parent');2const ast = createJSAst(`3  function add(a, b) {4    return a + b;5  }6`);7console.log(ast);8const { createJSAst } = require('stryker-parent');9const ast = createJSAst(`10  function add(a, b) {11    return a + b;12  }13`);14console.log(ast);15const { createJSAst } = require('stryker-parent');16const ast = createJSAst(`17  function add(a, b) {18    return a + b;19  }20`);21console.log(ast);22const { createJSAst } = require('stryker-parent');23const ast = createJSAst(`24  function add(a, b) {25    return a + b;26  }27`);28console.log(ast);29const { createJSAst } = require('stryker-parent');30const ast = createJSAst(`31  function add(a, b) {32    return a + b;33  }34`);35console.log(ast);36const { createJSAst } = require('stryker-parent');37const ast = createJSAst(`38  function add(a, b) {39    return a + b;40  }41`);42console.log(ast);43const { createJSAst } = require('stryker-parent');44const ast = createJSAst(`45  function add(a, b) {46    return a + b;47  }48`);49console.log(ast);50const { createJSAst } = require('stryker-parent');51const ast = createJSAst(`52  function add(a, b) {53    return a + b;54  }55`);56console.log(ast);57const { createJSAst } =

Using AI Code Generation

1const { createJSAst } = require('stryker-parent');2const ast = createJSAst('var x = 1;');3console.log('AST: ', ast);4For example, you could check if a test file has a call to describe() :5const { createJSAst } = require('stryker-parent');6const ast = createJSAst('describe("foo", () => { it("bar", () => { expect(true).toBe(true); }); });');7const describeCall = ast.body.find(node => node.type === 'CallExpression' && node.callee.name === 'describe');8if (describeCall) {9  console.log('Found describe call');10}11You can also use the createJSAst method to check if a test file has a call to it() :12const { createJSAst } = require('stryker-parent');13const ast = createJSAst('describe("foo", () => { it("bar", () => { expect(true).toBe(true); }); });');14const itCall = ast.body.find(node => node.type === 'CallExpression' && node.callee.name === 'it');15if (itCall) {16  console.log('Found it call');17}18This example shows how you can use the createJSAst method to check if a test file has a call to it() and describe() :19const { createJSAst } = require('stryker-parent');20const ast = createJSAst('describe("foo", () => { it("bar", () => { expect(true).toBe(true); }); });');21const describeCall = ast.body.find(node => node.type === 'CallExpression' && node.callee.name === 'describe');22const itCall = ast.body.find(node => node.type === 'CallExpression' && node.callee.name === 'it');23if (describeCall && itCall) {24  console.log('Found describe and it call');

Using AI Code Generation

1var stryker = require('stryker');2var ast = stryker.createJSAst("var x = 1;");3exports.createJSAst = function(sourceCode) {4    return esprima.parse(sourceCode);5};6exports.parse = function (source, options) {7    var syntax = new Syntax();8    var parser = new Parser(syntax, source, options);9    return parser.parseProgram();10};11Parser.prototype.parseProgram = function () {12    var node = this.createNode();13    this.expect(TokenType.Keyword, 'var');14    node.id = this.parseVariableIdentifier();15    this.expect(TokenType.Punctuator, '=');16    node.init = this.parseAssignmentExpression();17    this.expect(TokenType.Punctuator, ';');18    this.expect(TokenType.EOF);19    return node;20};21function Node(type, loc) {22    this.type = type;23    this.loc = loc;24}25function Program(body, loc) {26    Node.call(this, Syntax.Program, loc);27    this.body = body;28}29var Syntax = {

Using AI Code Generation

1const { createJSAst } = require('stryker-parent');2const ast = createJSAst('const foo = 1;', { plugins: ['jsx'] });3const { parse } = require('babylon');4module.exports = {5  createJSAst: (code, options) => parse(code, options)6};7{8  "peerDependencies": {9  }10}11{12  "dependencies": {13  }14}

Using AI Code Generation

1var createJSAst = require('stryker-parent').createJSAst;2var api = require('stryker-mutator-api');3var code = 'function add(a, b) { return a + b; }';4var ast = createJSAst(code);5var mutator = api.mutatorFor('JavaScript');6var mutants = mutator.mutate(ast);7var newAst = api.createJSAst(mutants[0].mutatedCode);8console.log(newAst);9var newCode = api.createJSCode(newAst);10console.log(newCode);11var newCode = api.createJSCode(newAst);12console.log(newCode);13var newCode = api.createJSCode(newAst);14console.log(newCode);15var newCode = api.createJSCode(newAst);16console.log(newCode);

Blogs

Check out the latest blogs from LambdaTest on this topic:

How To Refresh Page Using Selenium C# [Complete Tutorial]

When working on web automation with Selenium, I encountered scenarios where I needed to refresh pages from time to time. When does this happen? One scenario is that I needed to refresh the page to check that the data I expected to see was still available even after refreshing. Another possibility is to clear form data without going through each input individually.

Developers and Bugs – why are they happening again and again?

Entering the world of testers, one question started to formulate in my mind: “what is the reason that bugs happen?”.

Best 13 Tools To Test JavaScript Code

Unit and functional testing are the prime ways of verifying the JavaScript code quality. However, a host of tools are available that can also check code before or during its execution in order to test its quality and adherence to coding standards. With each tool having its unique features and advantages contributing to its testing capabilities, you can use the tool that best suits your need for performing JavaScript testing.

Acquiring Employee Support for Change Management Implementation

Enterprise resource planning (ERP) is a form of business process management software—typically a suite of integrated applications—that assists a company in managing its operations, interpreting data, and automating various back-office processes. The introduction of a new ERP system is analogous to the introduction of a new product into the market. If the product is not handled appropriately, it will fail, resulting in significant losses for the business. Most significantly, the employees’ time, effort, and morale would suffer as a result of the procedure.

A Complete Guide To CSS Houdini

As a developer, checking the cross browser compatibility of your CSS properties is of utmost importance when building your website. I have often found myself excited to use a CSS feature only to discover that it’s still not supported on all browsers. Even if it is supported, the feature might be experimental and not work consistently across all browsers. Ask any front-end developer about using a CSS feature whose support is still in the experimental phase in most prominent web browsers. ????

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.