How to use isValidExpression method in stryker-parent
Best JavaScript code snippet using stryker-parent
expression.spec.js
Source:expression.spec.js 
...52 });53 });54 describe('isValidExpression', function() {55 it('should unvalid an empty expression', function() {56 expect(m.isValidExpression('')).toBe(false);57 });58 it('should well valid 1 character expression', function() {59 expect(m.isValidExpression('(')).toBe(false);60 expect(m.isValidExpression(')')).toBe(false);61 expect(m.isValidExpression('+')).toBe(false);62 expect(m.isValidExpression('-')).toBe(false);63 expect(m.isValidExpression('*')).toBe(false);64 expect(m.isValidExpression('/')).toBe(false);65 expect(m.isValidExpression('x')).toBe(true);66 expect(m.isValidExpression('y')).toBe(true);67 expect(m.isValidExpression('1')).toBe(true);68 expect(m.isValidExpression('2')).toBe(true);69 expect(m.isValidExpression('3')).toBe(true);70 expect(m.isValidExpression('4')).toBe(true);71 expect(m.isValidExpression('5')).toBe(true);72 expect(m.isValidExpression('6')).toBe(true);73 expect(m.isValidExpression('7')).toBe(true);74 expect(m.isValidExpression('8')).toBe(true);75 expect(m.isValidExpression('9')).toBe(true);76 });77 it('should well valid 2 character expression', function() {78 expect(m.isValidExpression('()')).toBe(false);79 expect(m.isValidExpression(')(')).toBe(false);80 expect(m.isValidExpression('++')).toBe(false);81 expect(m.isValidExpression('--')).toBe(false);82 expect(m.isValidExpression('//')).toBe(false);83 expect(m.isValidExpression('**')).toBe(false);84 expect(m.isValidExpression('10')).toBe(true);85 expect(m.isValidExpression('99')).toBe(true);86 });87 it('should well valid a simple operation', function() {88 expect(m.isValidExpression('1+1')).toBe(true);89 expect(m.isValidExpression('1+x')).toBe(true);90 expect(m.isValidExpression('1-1')).toBe(true);91 expect(m.isValidExpression('2*5')).toBe(true);92 expect(m.isValidExpression('8/2')).toBe(true);93 expect(m.isValidExpression('(/2')).toBe(false);94 expect(m.isValidExpression('*25')).toBe(false);95 expect(m.isValidExpression('x/y')).toBe(true);96 expect(m.isValidExpression('x*y')).toBe(true);97 expect(m.isValidExpression('x-y')).toBe(true);98 expect(m.isValidExpression('x+y')).toBe(true);99 });100 it('should well valid a complexe expression', function() {101 expect(m.isValidExpression('(1+(x-5))')).toBe(true);102 expect(m.isValidExpression('(((8-x)+(x*y))/(x-(5*y))')).toBe(true);103 expect(m.isValidExpression('(((8-x))+(x*y))/(x-(5*y))')).toBe(false);104 });105 });106 describe('expressionToTree', function() {107 var has;108 beforeEach(function() {109 has = jasmine.objectContaining;110 });111 it('should throw exception on an empty expression', function() {112 expect(m.expressionToTree('')).toThrow();113 });114 it('should well transform 1 character expression', function() {115 expect(m.expressionToTree('(')).toThrow();116 expect(m.expressionToTree(')')).toThrow();117 expect(m.expressionToTree('+')).toThrow();118 expect(m.expressionToTree('-')).toThrow();119 expect(m.expressionToTree('*')).toThrow();120 expect(m.expressionToTree('/')).toThrow();121 expect(m.expressionToTree('x')).toEqual(has({value:'x'}));122 expect(m.expressionToTree('y')).toEqual(has({value:'y'}));123 expect(m.expressionToTree('1')).toEqual(has({value:1}));124 expect(m.expressionToTree('2')).toEqual(has({value:2}));125 expect(m.expressionToTree('3')).toEqual(has({value:3}));126 expect(m.expressionToTree('4')).toEqual(has({value:4}));127 expect(m.expressionToTree('5')).toEqual(has({value:5}));128 expect(m.expressionToTree('6')).toEqual(has({value:6}));129 expect(m.expressionToTree('7')).toEqual(has({value:7}));130 expect(m.expressionToTree('8')).toEqual(has({value:8}));131 expect(m.expressionToTree('9')).toEqual(has({value:9}));132 });133 xit('should well transform 2 character expression', function() {134 expect(m.expressionToTree('()')).toThrow();135 expect(m.expressionToTree(')(')).toThrow();136 expect(m.expressionToTree('++')).toThrow();137 expect(m.expressionToTree('--')).toThrow();138 expect(m.expressionToTree('//')).toThrow();139 expect(m.expressionToTree('**')).toThrow();140 expect(m.expressionToTree('10')).toEqual(has({value:10}));141 expect(m.expressionToTree('99')).toEqual(has({value:99}));142 });143 it('should well transform a simple operation', function() {144 expect(m.expressionToTree('1+1')).toEqual(has({operator:'+',operandLeft:{value:1}, operandRight:{value:1}}));145 expect(m.expressionToTree('1+x')).toEqual(has({operator:'+',operandLeft:{value:1}, operandRight:{value:'x'}}));146 expect(m.expressionToTree('1-1')).toEqual(has({operator:'-',operandLeft:{value:1}, operandRight:{value:1}}));147 expect(m.expressionToTree('2*5')).toEqual(has({operator:'*',operandLeft:{value:2}, operandRight:{value:5}}));148 expect(m.expressionToTree('8/2')).toEqual(has({operator:'/',operandLeft:{value:8}, operandRight:{value:2}}));149 expect(m.expressionToTree('(/2')).toThrow();150 expect(m.expressionToTree('*25')).toThrow();151 expect(m.expressionToTree('x/y')).toEqual(has({operator:'/',operandLeft:{value:'x'}, operandRight:{value:'y'}}));152 expect(m.expressionToTree('x*y')).toEqual(has({operator:'*',operandLeft:{value:'x'}, operandRight:{value:'y'}}));153 expect(m.expressionToTree('x-y')).toEqual(has({operator:'-',operandLeft:{value:'x'}, operandRight:{value:'y'}}));154 expect(m.expressionToTree('x+y')).toEqual(has({operator:'+',operandLeft:{value:'x'}, operandRight:{value:'y'}}));155 });156 it('should well transform a complexe expression', function() {157 expect(m.expressionToTree('(1+(x-5))'))158 .toEqual(has({159 operator :'+',160 operandLeft :{value:1},161 operandRight:{162 operator :'-',163 operandLeft :{value:'x'},164 operandRight:{value:5}165 }166 }));167 expect(m.expressionToTree('(((8-x)+(x*y))/(x-(5*y))'))168 .toEqual(has({169 operator :'/',170 operandLeft :{171 operator :'+',172 operandLeft :{173 operator :'-',174 operandLeft :{value:8},175 operandRight:{value:'x'}176 },177 operandRight:{178 operator :'*',179 operandLeft :{value:'x'},180 operandRight:{value:'y'}181 }182 },183 operandRight:{184 operator :'-',185 operandLeft :{value:'x'},186 operandRight:{187 operator :'*',188 operandLeft :{value:5},189 operandRight:{value:'y'}190 }191 }192 }));193 expect(m.expressionToTree('(((8-x))+(x*y))/(x-(5*y))')).toThrow();194 });195 });196 describe('evaluateExpression', function() {197 it('should throw exception on an empty expression', function() {198 expect(m.isValidExpression('', 1, 2)).toThrow();199 });200 it('should well evaluate 1 character expression', function() {201 expect(m.isValidExpression('(', 1, 2)).toThrow();202 expect(m.isValidExpression(')', 1, 2)).toThrow();203 expect(m.isValidExpression('+', 1, 2)).toThrow();204 expect(m.isValidExpression('-', 1, 2)).toThrow();205 expect(m.isValidExpression('*', 1, 2)).toThrow();206 expect(m.isValidExpression('/', 1, 2)).toThrow();207 expect(m.isValidExpression('x', 1, 2)).toBe(1);208 expect(m.isValidExpression('y', 1, 2)).toBe(2);209 expect(m.isValidExpression('1', 1, 2)).toBe(1);210 expect(m.isValidExpression('2', 1, 2)).toBe(2);211 expect(m.isValidExpression('3', 1, 2)).toBe(3);212 expect(m.isValidExpression('4', 1, 2)).toBe(4);213 expect(m.isValidExpression('5', 1, 2)).toBe(5);214 expect(m.isValidExpression('6', 1, 2)).toBe(6);215 expect(m.isValidExpression('7', 1, 2)).toBe(7);216 expect(m.isValidExpression('8', 1, 2)).toBe(8);217 expect(m.isValidExpression('9', 1, 2)).toBe(9);218 });219 it('should well evaluate 2 character expression', function() {220 expect(m.isValidExpression('()', 1, 2)).toThrow();221 expect(m.isValidExpression(')(', 1, 2)).toThrow();222 expect(m.isValidExpression('++', 1, 2)).toThrow();223 expect(m.isValidExpression('--', 1, 2)).toThrow();224 expect(m.isValidExpression('//', 1, 2)).toThrow();225 expect(m.isValidExpression('**', 1, 2)).toThrow();226 expect(m.isValidExpression('10', 1, 2)).toBe(10);227 expect(m.isValidExpression('99', 1, 2)).toBe(99);228 });229 it('should well evaluate a simple operation', function() {230 expect(m.isValidExpression('1+1', 1, 2)).toBe(2);231 expect(m.isValidExpression('1+x', 1, 2)).toBe(2);232 expect(m.isValidExpression('1-1', 1, 2)).toBe(0);233 expect(m.isValidExpression('2*5', 1, 2)).toBe(10);234 expect(m.isValidExpression('8/2', 1, 2)).toBe(4);235 expect(m.isValidExpression('(/2', 1, 2)).toThrow();236 expect(m.isValidExpression('*25', 1, 2)).toThrow();237 expect(m.isValidExpression('x/y', 4, 2)).toBe(2);238 expect(m.isValidExpression('x*y', 3, 2)).toBe(6);239 expect(m.isValidExpression('x-y', 7, 5)).toBe(2);240 expect(m.isValidExpression('x+y', 5, 7)).toBe(12);241 });242 it('should well evaluate a complexe expression', function() {243 expect(m.isValidExpression('(1+(x-5))', 1, 2)).toBe(-3);244 expect(m.isValidExpression('(((8-x)+(x*y))/(x-(5*y))', 1, 2)).toBe(-1);245 expect(m.isValidExpression('(((8-x))+(x*y))/(x-(5*y))', 1, 2)).toThrow();246 });247 });248 });...
index.js
Source:index.js
...9const legalVariables = new Set(["a", "b", "c", "x", "y", "z"]);10function len(expr) {11 return expr.end - expr.start;12}13function isValidExpression(14 expr,15 ctx = {16 seenArray: false,17 seenObject: false,18 seenSequence: false,19 }20) {21 switch (expr.type) {22 case "ArrayExpression":23 if (ctx.seenArray) {24 return false;25 }26 ctx.seenArray = true;27 if (expr.elements.length > 3) {28 return false;29 }30 return expr.elements.every(31 (ele) =>32 !ele ||33 (len(ele) < 50 && isValidExpression(ele, ctx))34 );35 case "ObjectExpression":36 if (ctx.seenObject) {37 return false;38 }39 ctx.seenObject = true;40 if (expr.properties.length > 3) {41 return false;42 }43 return expr.properties.every(44 (prop) =>45 len(prop.key) < 50 &&46 isValidExpression(prop.value, ctx)47 );48 case "UnaryExpression":49 case "UpdateExpression":50 return isValidExpression(expr.argument, ctx);51 case "BinaryExpression":52 case "LogicalExpression":53 return (54 isValidExpression(expr.left, ctx) &&55 isValidExpression(expr.right, ctx)56 );57 case "AssignmentExpression":58 return (59 expr.left.type === "Identifier" &&60 legalVariables.has(expr.left.name, ctx) &&61 isValidExpression(expr.right, ctx)62 );63 case "MemberExpression":64 return (65 isValidExpression(expr.object, ctx) &&66 (expr.property.type === "Literal" ||67 expr.property.type === "Identifier")68 );69 case "ConditionalExpression":70 return (71 isValidExpression(expr.test, ctx) &&72 isValidExpression(expr.alternate, ctx) &&73 isValidExpression(expr.consequent, ctx)74 );75 case "CallExpression":76 return (77 expr.callee.type === "MemberExpression" &&78 expr.callee.object.type === "Identifier" &&79 expr.callee.object.name === "Math" &&80 expr.callee.property.type === "Identifier" &&81 expr.arguments.every((arg) => isValidExpression(arg, ctx))82 );83 case "SequenceExpression":84 if (ctx.seenSequence) {85 return false;86 }87 ctx.seenSequence = true;88 if (expr.expressions.length > 3) {89 return false;90 }91 return expr.expressions.every((x) => isValidExpression(x, ctx));92 case "Literal":93 return len(expr) < 50;94 case "Identifier":95 return legalVariables.has(expr.name);96 default:97 return false;98 }99}100function isValid(str) {101 try {102 if (103 ["__", "eval", "constructor", "prototype"].some((x) =>104 str.includes(x)105 )106 ) {107 return false;108 }109 if (str.length > 240) {110 return false;111 }112 const abstractSnakeTree = acorn.parse(str, { ecmaVersion: "latest" });113 if (abstractSnakeTree.body.length !== 1) {114 return false;115 }116 const stmt = abstractSnakeTree.body[0];117 if (stmt.type !== "ExpressionStatement") {118 return false;119 }120 return isValidExpression(stmt.expression);121 } catch (e) {122 return false;123 }124}125interface.question(126 "Welcome to CaaSio Snake Edition! Enter your calculation:\n",127 function (input) {128 interface.close();129 if (isValid(input)) {130 try {131 const ctx = Object.create(null);132 const val = vm.runInNewContext(input, ctx);133 console.log("Result:");134 console.log(val);...
index.test.ts
Source:index.test.ts
...53 expect(evalExpression(complexExpression, 15805152000000)).toEqual(0);54 expect(evalExpression(complexExpression, 15805159000000)).toEqual(0);55});56test('isValidExpression correctly identifies invalid formulas', () => {57 expect(isValidExpression('foobar')).toEqual(false);58 expect(isValidExpression('x+')).toEqual(false);59 expect(isValidExpression('z+1')).toEqual(false);60});61test('isValidExpression correctly identifies valid formulas', () => {62 expect(isValidExpression('x')).toEqual(true);63 expect(isValidExpression('x+1')).toEqual(true);64 expect(isValidExpression('y=x-1')).toEqual(true);65 expect(isValidExpression('y = x - 1')).toEqual(true);66 expect(isValidExpression('y = (x < 100 and x > 0) * 100')).toEqual(true);...
Using AI Code Generation
1var isValidExpression = require('stryker-parent').isValidExpression;2var isValid = isValidExpression('1+1');3console.log(isValid);4var isValidExpression = require('stryker-parent').isValidExpression;5var isValid = isValidExpression('1+1');6console.log(isValid);7var isValidExpression = require('stryker-parent').isValidExpression;8var isValid = isValidExpression('1+1');9console.log(isValid);10var isValidExpression = require('stryker-parent').isValidExpression;11var isValid = isValidExpression('1+1');12console.log(isValid);13var isValidExpression = require('stryker-parent').isValidExpression;14var isValid = isValidExpression('1+1');15console.log(isValid);16var isValidExpression = require('stryker-parent').isValidExpression;17var isValid = isValidExpression('1+1');18console.log(isValid);19var isValidExpression = require('stryker-parent').isValidExpression;20var isValid = isValidExpression('1+1');21console.log(isValid);22var isValidExpression = require('stryker-parent').isValidExpression;23var isValid = isValidExpression('1+1');24console.log(isValid);25var isValidExpression = require('stryker-parent').isValidExpression;26var isValid = isValidExpression('1+1');27console.log(isValid);28var isValidExpression = require('stryker-parent').isValidExpression;29var isValid = isValidExpression('1+1');30console.log(isValid);31var isValidExpression = require('stryker-parent').isValidExpression;
Using AI Code Generation
1var stryker_parent = require('stryker-parent');2var isValidExpression = stryker_parent.isValidExpression;3console.log(isValidExpression("foo.bar"));4console.log(isValidExpression("foo.bar[0]"));5console.log(isValidExpression("foo.bar[0].baz"));6console.log(isValidExpression("foo.bar[0].baz[0]"));7console.log(isValidExpression("foo.bar[0].baz[0].qux"));8console.log(isValidExpression("foo.bar[0].baz[0].qux[0]"));9console.log(isValidExpression("foo.bar[0].baz[0].qux[0].quux"));10console.log(isValidExpression("foo.bar[0].baz[0].qux[0].quux[0]"));11console.log(isValidExpression("foo.bar[0].baz[0].qux[0].quux[0].quuz"));12console.log(isValidExpression("foo.bar[0].baz[0].qux[0].quux[0].quuz[0]"));
Using AI Code Generation
1const { isValidExpression } = require('stryker-parent');2const expression = '1+1';3const isValid = isValidExpression(expression);4console.log(`Expression ${expression} is ${isValid ? 'valid' : 'invalid'}`);5const { isValidExpression } = require('stryker-parent');6module.exports = function (strykerConfig) {7 return {8 run: async function (runOptions) {9 if (!isValidExpression(runOptions.expression)) {10 throw new Error('Invalid expression');11 }12 }13 };14};15{16}17const { isValidExpression } = require('stryker-parent');18module.exports = function (strykerConfig) {19 return {20 run: async function (runOptions) {21 if (!isValidExpression(runOptions.expression)) {22 throw new Error('Invalid expression');23 }24 }25 };26};27{28}
Using AI Code Generation
1const isValidExpression = require('stryker-parent').isValidExpression;2const assert = require('assert');3assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');4assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');5const isValidExpression = require('stryker-parent').isValidExpression;6const assert = require('assert');7assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');8assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');9const isValidExpression = require('stryker-parent').isValidExpression;10const assert = require('assert');11assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');12assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');13const isValidExpression = require('stryker-parent').isValidExpression;14const assert = require('assert');15assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');16assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');17const isValidExpression = require('stryker-parent').isValidExpression;18const assert = require('assert');19assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');20assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');21const isValidExpression = require('stryker-parent').isValidExpression;22const assert = require('assert');23assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');24assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');
Using AI Code Generation
1const isValidExpression = require('stryker-parent').isValidExpression;2const assert = require('assert');3assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');4assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');5const isValidExpression = require('stryker-parent').isValidExpression;6const assert = require('assert');7assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');8assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');9const isValidExpression = require('stryker-parent').isValidExpression;10const assert = require('assert');11assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');12assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');13const isValidExpression = require('stryker-parent').isValidExpression;14const assert = require('assert');15assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');16assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');17const isValidExpression = require('stryker-parent').isValidExpression;18const assert = require('assert');19assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');20assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');21const isValidExpression = require('stryker-parent').isValidExpression;22const assert = require('assert');23assert(isValidExpression('foo === "bar"'), 'Expected "foo === \"bar\"" to be valid');24assert(!isValidExpression('foo = "bar"'), 'Expected "foo = \"bar\"" to be invalid');
Using AI Code Generation
1const isValidExpression = require('stryker-parent').isValidExpression;2const expression = '1 + 2';3const result = isValidExpression(expression);4console.log(result);5const isValidExpression = require('stryker-parent').isValidExpression;6const expression = '1 + 2';7const result = isValidExpression(expression);8console.log(result);
Using AI Code Generation
1const isValidExpression = require('stryker-parent').isValidExpression;2const expression = '1 + 2';3const result = isValidExpression(expression);4console.log(result);5const isValidExpression = require('stryker-parent').isValidExpression;6const expression = '1 + 2';7const result = isValidExpression(expression);8console.log(result);
Using AI Code Generation
1const strykerParent = require('stryker-parent');2const isValidExpression = strykerParent.isValidExpression;3console.log(isValidExpression('1+1'));4const { StrykerOptions } = require('stryker-api/core');5const { MutantResult, MutantStatus, Reporter } = require('stryker-api/report');6class CustomReporter extends Reporter {7 constructor(options) {8 super(options);9 this.killedMutants = 0;10 this.survivedMutants = 0;11 }12 onMutantTested(result) {13 if (result.status === MutantStatus.Killed) {14 this.killedMutants++;15 } else if (result.status === MutantStatus.Survived) {16 this.survivedMutants++;17 }18 }19 wrapUp() {20 console.log(21 `Killed ${this.killedMutants} mutants and survived ${this.survivedMutants} mutants.`22 );23 }24}25CustomReporter.inject = [StrykerOptions];26module.exports = CustomReporter;27import { StrykerOptions } from 'stryker-api/core';28import { MutantResult, MutantStatus, Reporter } from 'stryker-api/report';29class CustomReporter implements Reporter {30 private killedMutants: number = 0;31 private survivedMutants: number = 0;32 constructor(options: StrykerOptions) {}33 onMutantTested(result: MutantResult) {34 if (result.status === MutantStatus.Killed) {35 this.killedMutants++;36 } else if (result.status === MutantStatus.Survived
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