Best JavaScript code snippet using ts-auto-mock
utils_spec.ts
Source:utils_spec.ts
...47describe('getTsHelperFnFromDeclaration()', () => {48 const createFunctionDeclaration = (fnName?: string) => ts.createFunctionDeclaration(49 undefined, undefined, undefined, fnName, undefined, [], undefined, undefined);50 const createVariableDeclaration = (varName: string) =>51 ts.createVariableDeclaration(varName, undefined, undefined);52 it('should recognize the `__assign` helper as function declaration', () => {53 const decl1 = createFunctionDeclaration('__assign');54 const decl2 = createFunctionDeclaration('__assign$42');55 expect(getTsHelperFnFromDeclaration(decl1)).toBe(KnownDeclaration.TsHelperAssign);56 expect(getTsHelperFnFromDeclaration(decl2)).toBe(KnownDeclaration.TsHelperAssign);57 });58 it('should recognize the `__assign` helper as variable declaration', () => {59 const decl1 = createVariableDeclaration('__assign');60 const decl2 = createVariableDeclaration('__assign$42');61 expect(getTsHelperFnFromDeclaration(decl1)).toBe(KnownDeclaration.TsHelperAssign);62 expect(getTsHelperFnFromDeclaration(decl2)).toBe(KnownDeclaration.TsHelperAssign);63 });64 it('should recognize the `__spread` helper as function declaration', () => {65 const decl1 = createFunctionDeclaration('__spread');66 const decl2 = createFunctionDeclaration('__spread$42');67 expect(getTsHelperFnFromDeclaration(decl1)).toBe(KnownDeclaration.TsHelperSpread);68 expect(getTsHelperFnFromDeclaration(decl2)).toBe(KnownDeclaration.TsHelperSpread);69 });70 it('should recognize the `__spread` helper as variable declaration', () => {71 const decl1 = createVariableDeclaration('__spread');72 const decl2 = createVariableDeclaration('__spread$42');73 expect(getTsHelperFnFromDeclaration(decl1)).toBe(KnownDeclaration.TsHelperSpread);74 expect(getTsHelperFnFromDeclaration(decl2)).toBe(KnownDeclaration.TsHelperSpread);75 });76 it('should recognize the `__spreadArrays` helper as function declaration', () => {77 const decl1 = createFunctionDeclaration('__spreadArrays');78 const decl2 = createFunctionDeclaration('__spreadArrays$42');79 expect(getTsHelperFnFromDeclaration(decl1)).toBe(KnownDeclaration.TsHelperSpreadArrays);80 expect(getTsHelperFnFromDeclaration(decl2)).toBe(KnownDeclaration.TsHelperSpreadArrays);81 });82 it('should recognize the `__spreadArrays` helper as variable declaration', () => {83 const decl1 = createVariableDeclaration('__spreadArrays');84 const decl2 = createVariableDeclaration('__spreadArrays$42');85 expect(getTsHelperFnFromDeclaration(decl1)).toBe(KnownDeclaration.TsHelperSpreadArrays);86 expect(getTsHelperFnFromDeclaration(decl2)).toBe(KnownDeclaration.TsHelperSpreadArrays);87 });88 it('should return null for unrecognized helpers', () => {89 const decl1 = createFunctionDeclaration('__foo');90 const decl2 = createVariableDeclaration('spread');91 const decl3 = createFunctionDeclaration('spread$42');92 expect(getTsHelperFnFromDeclaration(decl1)).toBe(null);93 expect(getTsHelperFnFromDeclaration(decl2)).toBe(null);94 expect(getTsHelperFnFromDeclaration(decl3)).toBe(null);95 });96 it('should return null for unnamed declarations', () => {97 const unnamledDecl = createFunctionDeclaration(undefined);98 expect(getTsHelperFnFromDeclaration(unnamledDecl)).toBe(null);99 });100 it('should return null for non-function/variable declarations', () => {101 const classDecl =102 ts.createClassDeclaration(undefined, undefined, '__assign', undefined, undefined, []);103 expect(classDecl.name!.text).toBe('__assign');104 expect(getTsHelperFnFromDeclaration(classDecl)).toBe(null);...
try-catch.ts
Source:try-catch.ts
...7 factory.createVariableStatement(8 undefined,9 factory.createVariableDeclarationList(10 [11 factory.createVariableDeclaration(12 factory.createIdentifier(exceptionIdentifier),13 undefined,14 factory.createKeywordTypeNode(ts.SyntaxKind.UnknownKeyword),15 undefined16 ),17 ],18 ts.NodeFlags.Let19 )20 ),21 factory.createVariableStatement(22 undefined,23 factory.createVariableDeclarationList(24 [25 factory.createVariableDeclaration(26 factory.createIdentifier(`${exceptionIdentifier}_accessed`),27 undefined,28 factory.createKeywordTypeNode(ts.SyntaxKind.BooleanKeyword),29 undefined30 ),31 ],32 ts.NodeFlags.Let33 )34 ),35 factory.createVariableStatement(36 undefined,37 factory.createVariableDeclarationList(38 [39 factory.createVariableDeclaration(40 factory.createIdentifier(accessorFnIdentifier),41 undefined,42 undefined,43 factory.createArrowFunction(44 undefined,45 undefined,46 [],47 undefined,48 factory.createToken(ts.SyntaxKind.EqualsGreaterThanToken),49 factory.createBlock(50 [51 factory.createExpressionStatement(52 factory.createBinaryExpression(53 factory.createIdentifier(`${exceptionIdentifier}_accessed`),54 factory.createToken(ts.SyntaxKind.EqualsToken),55 factory.createTrue()56 )57 ),58 factory.createReturnStatement(factory.createIdentifier(exceptionIdentifier)),59 ],60 true61 )62 )63 ),64 ],65 ts.NodeFlags.Const66 )67 ),68 factory.createVariableStatement(69 undefined,70 factory.createVariableDeclarationList(71 [72 factory.createVariableDeclaration(73 factory.createIdentifier(`${exceptionIdentifier}_unhandled`),74 undefined,75 undefined,76 factory.createArrowFunction(77 undefined,78 undefined,79 [],80 undefined,81 factory.createToken(ts.SyntaxKind.EqualsGreaterThanToken),82 factory.createBinaryExpression(83 factory.createPrefixUnaryExpression(ts.SyntaxKind.ExclamationToken, factory.createIdentifier(`${exceptionIdentifier}_accessed`)),84 factory.createToken(ts.SyntaxKind.AmpersandAmpersandToken),85 factory.createIdentifier(exceptionIdentifier)86 )87 )88 ),89 ],90 ts.NodeFlags.Const91 )92 ),93 ];94 return statements;95};96export const wrapInTryCatch = (context: ts.TransformationContext, statements: ts.Statement[]): ts.TryStatement => {97 const factory = context.factory;98 return factory.createTryStatement(99 factory.createBlock(100 [101 factory.createExpressionStatement(102 factory.createBinaryExpression(103 factory.createIdentifier(`${exceptionIdentifier}_accessed`),104 factory.createToken(ts.SyntaxKind.EqualsToken),105 factory.createFalse()106 )107 ),108 ...statements,109 ],110 true111 ),112 factory.createCatchClause(113 factory.createVariableDeclaration(114 factory.createIdentifier('$__err'),115 undefined,116 factory.createKeywordTypeNode(ts.SyntaxKind.UnknownKeyword),117 undefined118 ),119 factory.createBlock(120 [121 factory.createExpressionStatement(122 factory.createBinaryExpression(123 factory.createIdentifier(exceptionIdentifier),124 factory.createToken(ts.SyntaxKind.EqualsToken),125 factory.createIdentifier('$__err')126 )127 ),128 ],129 true130 )131 ),132 undefined133 );134};135export const checkUnhandledExceptions = (context: ts.TransformationContext): ts.Statement[] => {136 const factory = context.factory;137 return [138 factory.createVariableStatement(139 undefined,140 factory.createVariableDeclarationList(141 [142 factory.createVariableDeclaration(143 factory.createIdentifier('unhandled'),144 undefined,145 undefined,146 factory.createCallExpression(factory.createIdentifier(`${exceptionIdentifier}_unhandled`), undefined, [])147 ),148 ],149 ts.NodeFlags.Const150 )151 ),152 factory.createIfStatement(factory.createIdentifier('unhandled'), factory.createThrowStatement(factory.createIdentifier('unhandled')), undefined),153 ];...
cjs.ts
Source:cjs.ts
...3// This file is to deal with CommonJS modules, and extract4// their exported members in an isolated way.5// We have the following strategy:6// - module.exports = constant;7// const tmp = ts.createVariableDeclaration(..., constant);8// exports.set("export=", tmp);9//10// - module.exports = { a: 3, ... };11// const tmp = ts.createVariableDeclaration(..., 3);12// exports.set("a", tmp);13// ...14//15// - exports.a = function() {}16// const tmp = ts.createVariableDeclaration(..., functionDeclaration);17// exports.set("a", tmp);18//19// - exports.a = {};20// Same as `exports.a = constant`. (For not having a ambiguity.)21//22// - exports.a.b = ...;23// Not supported atm.24//25// - exports = ...;26// Not valid.27//28// TODO(qti3e) global.module.exports = ...;29export const exportsSym = Symbol();30export const moduleSym = Symbol();31export function extractCJSExports(sourceFile: ts.SourceFile): void {32 for (const node of sourceFile.statements) {33 if (ts.isExpressionStatement(node)) {34 processExport(node, sourceFile);35 }36 }37}38function processExport(39 node: ts.ExpressionStatement,40 sourceFile: ts.SourceFile41): void {42 const expression = node.expression;43 if (!ts.isBinaryExpression(expression)) { return; }44 const name = getName(expression);45 if (!name) { return; }46 if (name === "export=") { sourceFile.exports.clear(); }47 const right = expression.right;48 if (ts.isIdentifier(right) ||49 ts.isFunctionExpression(right) ||50 ts.isArrowFunction(right)) {51 sourceFile.exports.set(name, right);52 return;53 }54 switch(right.kind) {55 case ts.SyntaxKind.TrueKeyword:56 case ts.SyntaxKind.FalseKeyword:57 case ts.SyntaxKind.StringLiteral:58 case ts.SyntaxKind.NullKeyword:59 case ts.SyntaxKind.NumericLiteral:60 const declaration = ts.createVariableDeclaration(null, null, right);61 const list = ts.createVariableDeclarationList([declaration]);62 const statement = ts.createVariableStatement([], list);63 declaration.scope = sourceFile;64 declaration.parent = list;65 list.scope = sourceFile;66 list.parent = statement;67 statement.scope = sourceFile;68 statement.parent = sourceFile;69 sourceFile.exports.set(name, declaration);70 default:71 return;72 }73}74function getName(expression: ts.BinaryExpression): string | void {...
Using AI Code Generation
1import { createVariableDeclaration } from 'ts-auto-mock/variable';2const variableDeclaration = createVariableDeclaration('test1');3import { createVariableStatement } from 'ts-auto-mock/variable';4const variableStatement = createVariableStatement('test1');5import { createVariableDeclarationList } from 'ts-auto-mock/variable';6const variableDeclarationList = createVariableDeclarationList('test1');7declare const test1: any;8const test1 = undefined;9const test1 = undefined;10const test1 = undefined;11declare const test2: any;12const test2 = undefined;13const test2 = undefined;14const test2 = undefined;15declare const test3: any;16const test3 = undefined;17const test3 = undefined;18const test3 = undefined;19declare const test4: any;20const test4 = undefined;21const test4 = undefined;22const test4 = undefined;23declare const test5: any;24const test5 = undefined;25const test5 = undefined;26const test5 = undefined;27declare const test6: any;28const test6 = undefined;29const test6 = undefined;30const test6 = undefined;
Using AI Code Generation
1import {createVariableDeclaration} from 'ts-auto-mock/variable';2const variableDeclaration = createVariableDeclaration('variableName', 'type');3import {createVariableDeclaration} from 'ts-auto-mock/variable';4const variableDeclaration = createVariableDeclaration('variableName', 'type', 'value');5import {createVariableDeclaration} from 'ts-auto-mock/variable';6const variableDeclaration = createVariableDeclaration('variableName', 'type');7import {createVariableDeclaration} from 'ts-auto-mock/variable';8const variableDeclaration = createVariableDeclaration('variableName', 'type', 'value');9import {createVariableDeclaration} from 'ts-auto-mock/variable';10const variableDeclaration = createVariableDeclaration('variableName', 'type');11import {createVariableDeclaration} from 'ts-auto-mock/variable';12const variableDeclaration = createVariableDeclaration('variableName', 'type', 'value');13import {createVariableStatement} from 'ts-auto-mock/variable';14const variableStatement = createVariableStatement('variableName', 'type');15import {createVariableStatement} from 'ts-auto-mock/variable';16const variableStatement = createVariableStatement('variableName', 'type', 'value');17import {createVariableStatement} from 'ts-auto-mock/variable';18const variableStatement = createVariableStatement('variableName', 'type');
Using AI Code Generation
1import { createVariableDeclaration } from 'ts-auto-mock/variable';2const variableDeclaration = createVariableDeclaration({3});4console.log(variableDeclaration);5import { createVariableDeclaration } from 'ts-auto-mock/variable';6const variableDeclaration = createVariableDeclaration({7});8console.log(variableDeclaration);9import { createVariableDeclaration } from 'ts-auto-mock/variable';10const variableDeclaration = createVariableDeclaration({11});12console.log(variableDeclaration);13import { createVariableDeclaration } from 'ts-auto-mock/variable';14const variableDeclaration = createVariableDeclaration({15});16console.log(variableDeclaration);17MIT © [Rafael Goulart](
Using AI Code Generation
1import { createVariableDeclaration } from 'ts-auto-mock/extension';2import { createVariableDeclaration } from 'ts-auto-mock/extension';3{4 "tsAutoMock.import": true5}6{7}8{9}10{11}12{13}14{15}16{17}18{19}20{21}22{23}24{
Using AI Code Generation
1import { createVariableDeclaration } from 'ts-auto-mock/variable';2const variableDeclaration = createVariableDeclaration('name', 'string');3import { createVariableDeclaration } from 'ts-auto-mock/variable';4const variableDeclaration = createVariableDeclaration('name', 'string', true);5import { createVariableDeclaration } from 'ts-auto-mock/variable';6const variableDeclaration = createVariableDeclaration('name', 'string', true, true);7import { createVariableDeclaration } from 'ts-auto-mock/variable';8const variableDeclaration = createVariableDeclaration('name', 'string', false, true);9import { createVariableDeclaration } from 'ts-auto-mock/variable';10const variableDeclaration = createVariableDeclaration('name', 'string', false, false);11import { createVariableDeclaration } from 'ts-auto-mock/variable';12const variableDeclaration = createVariableDeclaration('name', 'string', true, false);13import { createVariableDeclaration } from 'ts-auto-mock/variable';14const variableDeclaration = createVariableDeclaration('name', 'string', true, true, true);15import { createVariableDeclaration } from 'ts-auto-mock/variable';16const variableDeclaration = createVariableDeclaration('name', 'string', false, true, true);17import { createVariable
Using AI Code Generation
1import { createVariableDeclaration } from 'ts-auto-mock/variable';2const variableDeclaration = createVariableDeclaration('variable', 'any');3console.log(variableDeclaration);4import { createVariableDeclaration } from 'ts-auto-mock/variable';5const variableDeclaration = createVariableDeclaration('variable', 'any', true);6console.log(variableDeclaration);7import { createVariableDeclaration } from 'ts-auto-mock/variable';8const variableDeclaration = createVariableDeclaration('variable', 'any', false);9console.log(variableDeclaration);10import { createVariableDeclaration } from 'ts-auto-mock/variable';11const variableDeclaration = createVariableDeclaration('variable', 'any', true, true);12console.log(variableDeclaration);13import { createVariableDeclaration } from 'ts-auto-mock/variable';14const variableDeclaration = createVariableDeclaration('variable', 'any', false, true);15console.log(variableDeclaration);16import { createVariableDeclaration } from 'ts-auto-mock/variable';17const variableDeclaration = createVariableDeclaration('variable', 'any', false, false);18console.log(variableDeclaration);19import { createVariableDeclaration } from 'ts-auto-mock/variable';20const variableDeclaration = createVariableDeclaration('variable', 'any', true, false);21console.log(variableDeclaration);22import { createVariableDeclaration } from 'ts-auto-mock/variable';23const variableDeclaration = createVariableDeclaration('variable', 'any', false, true, true);24console.log(variableDeclaration);
Using AI Code Generation
1import { createVariableDeclaration } from 'ts-auto-mock';2const test1VariableDeclaration = createVariableDeclaration('test1', 'ITest1');3import { createVariableDeclarationStatement } from 'ts-auto-mock';4const test1VariableDeclarationStatement = createVariableDeclarationStatement('test1', 'ITest1');5import { createVariableStatement } from 'ts-auto-mock';6const test1VariableStatement = createVariableStatement('test1', 'ITest1');7import { createExpressionStatement } from 'ts-auto-mock';8const test1ExpressionStatement = createExpressionStatement('test1', 'ITest1');9import { createReturnStatement } from 'ts-auto-mock';10const test1ReturnStatement = createReturnStatement('test1', 'ITest1');11import { createCallExpression } from 'ts-auto-mock';12const test1CallExpression = createCallExpression('test1', 'ITest1');13import { createExportAssignment } from 'ts-auto-mock';14const test1ExportAssignment = createExportAssignment('test1', 'ITest1');
Using AI Code Generation
1import { createVariableDeclaration } from 'ts-auto-mock/variable';2const variable: string = createVariableDeclaration('variableName', 'string');3import { createVariableDeclarationWithMock } from 'ts-auto-mock/variable';4const variable: string = createVariableDeclarationWithMock('variableName', 'string');5import { createVariableDeclarationWithRequire } from 'ts-auto-mock/variable';6const variable: string = createVariableDeclarationWithRequire('variableName', 'string');7import { createVariableDeclarationWithRequireMock } from 'ts-auto-mock/variable';8const variable: string = createVariableDeclarationWithRequireMock('variableName', 'string');9import { createVariableDeclarationWithImport } from 'ts-auto-mock/variable';10const variable: string = createVariableDeclarationWithImport('variableName', 'string');11import { createVariableDeclarationWithImportMock } from 'ts-auto-mock/variable';12const variable: string = createVariableDeclarationWithImportMock('variableName', 'string');
Using AI Code Generation
1import { createVariableDeclaration } from 'ts-auto-mock/variable';2const variableDeclaration = createVariableDeclaration('myVar', 'number');3console.log(variableDeclaration);4import { createVariableDeclaration } from 'ts-auto-mock/variable';5const variableDeclaration = createVariableDeclaration('myVar', 'number', 10);6console.log(variableDeclaration);7import { createVariableDeclaration } from 'ts-auto-mock/variable';8const variableDeclaration = createVariableDeclaration('myVar', 'number', 10);9console.log(variableDeclaration);10import { createVariableStatement } from 'ts-auto-mock/variable';11const variableStatement = createVariableStatement('myVar', 'number');12console.log(variableStatement);
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.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!