/
no-identical-title.js
84 lines (74 loc) · 2.34 KB
/
no-identical-title.js
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'use strict';
const createAstUtils = require('../util/ast');
function newLayer() {
return {
describeTitles: [],
testTitles: []
};
}
function isFirstArgLiteral(node) {
return (
node.arguments &&
node.arguments[0] &&
node.arguments[0].type === 'Literal'
);
}
module.exports = {
meta: {
type: 'suggestion',
docs: {
description: 'Disallow identical titles',
url: 'https://github.com/lo1tuma/eslint-plugin-mocha/blob/main/docs/rules/no-identical-title.md'
},
schema: []
},
create(context) {
const astUtils = createAstUtils(context.settings);
const isTestCase = astUtils.buildIsTestCaseAnswerer();
const isDescribe = astUtils.buildIsDescribeAnswerer();
const titleLayers = [ newLayer() ];
function handlTestCaseTitles(titles, node, title) {
if (isTestCase(node)) {
if (titles.includes(title)) {
context.report({
node,
message:
'Test title is used multiple times in the same test suite.'
});
}
titles.push(title);
}
}
function handlTestSuiteTitles(titles, node, title) {
if (!isDescribe(node)) {
return;
}
if (titles.includes(title)) {
context.report({
node,
message: 'Test suite title is used multiple times.'
});
}
titles.push(title);
}
return {
CallExpression(node) {
const currentLayer = titleLayers[titleLayers.length - 1];
if (isDescribe(node)) {
titleLayers.push(newLayer());
}
if (!isFirstArgLiteral(node)) {
return;
}
const title = node.arguments[0].value;
handlTestCaseTitles(currentLayer.testTitles, node, title);
handlTestSuiteTitles(currentLayer.describeTitles, node, title);
},
'CallExpression:exit'(node) {
if (isDescribe(node)) {
titleLayers.pop();
}
}
};
}
};