eslint-plugin-sonarjs
Version:
SonarJS rules for ESLint
107 lines (106 loc) • 3.85 kB
JavaScript
;
/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Sonar Source-Available License Version 1, as published by SonarSource SA.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Sonar Source-Available License for more details.
*
* You should have received a copy of the Sonar Source-Available License
* along with this program; if not, see https://sonarsource.com/license/ssal/
*/
// https://sonarsource.github.io/rspec/#/rspec/S5863/javascript
Object.defineProperty(exports, "__esModule", { value: true });
exports.rule = void 0;
const index_js_1 = require("../helpers/index.js");
const meta_js_1 = require("./meta.js");
exports.rule = {
meta: (0, index_js_1.generateMeta)(meta_js_1.meta, undefined, true),
create(context) {
if (!index_js_1.Chai.isImported(context)) {
return {};
}
return {
ExpressionStatement(node) {
const { expression } = node;
checkExpect(context, expression);
checkShould(context, expression);
checkAssert(context, expression);
},
};
},
};
function checkAssert(context, expression) {
if (expression.type === 'CallExpression') {
const { callee, arguments: args } = expression;
if (callee.type === 'MemberExpression' && (0, index_js_1.isIdentifier)(callee.object, 'assert')) {
findDuplicates(context, args);
}
}
}
function checkExpect(context, expression) {
let currentExpression = expression;
let args = [];
while (true) {
if (currentExpression.type === 'CallExpression') {
args = [...currentExpression.arguments, ...args];
currentExpression = currentExpression.callee;
}
else if (currentExpression.type === 'MemberExpression') {
currentExpression = currentExpression.object;
}
else if ((0, index_js_1.isIdentifier)(currentExpression, 'expect')) {
break;
}
else {
return;
}
}
findDuplicates(context, args);
}
function checkShould(context, expression) {
let currentExpression = expression;
let args = [];
let hasShould = false;
while (true) {
if (currentExpression.type === 'CallExpression') {
args = [...currentExpression.arguments, ...args];
currentExpression = currentExpression.callee;
}
else if (currentExpression.type === 'MemberExpression') {
if ((0, index_js_1.isIdentifier)(currentExpression.property, 'should')) {
hasShould = true;
}
currentExpression = currentExpression.object;
}
else if ((0, index_js_1.isIdentifier)(currentExpression, 'should')) {
break;
}
else if (hasShould) {
args = [currentExpression, ...args];
break;
}
else {
return;
}
}
findDuplicates(context, args);
}
function findDuplicates(context, args) {
for (let i = 0; i < args.length; i++) {
for (let j = i + 1; j < args.length; j++) {
const duplicates = (0, index_js_1.areEquivalent)(args[i], args[j], context.sourceCode);
if (duplicates && !(0, index_js_1.isLiteral)(args[i])) {
(0, index_js_1.report)(context, { message: `Replace this argument or its duplicate.`, node: args[i] }, [
(0, index_js_1.toSecondaryLocation)(args[j]),
]);
}
}
}
}