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68 行
1.8 KiB
68 行
1.8 KiB
'use strict';
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/**
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* @fileoverview Limit the number of top-level suites in a single file
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* @author Alexander Afanasyev
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*/
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const isNil = require('ramda/src/isNil');
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const createAstUtils = require('../util/ast');
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const defaultSuiteLimit = 1;
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function isTopLevelScope(scope) {
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return scope.type === 'module' || scope.upper === null;
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}
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module.exports = {
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meta: {
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type: 'suggestion',
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docs: {
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description: 'Limit the number of top-level suites in a single file'
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},
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schema: [
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{
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type: 'object',
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properties: {
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limit: {
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type: 'integer'
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}
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},
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additionalProperties: false
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}
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]
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},
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create(context) {
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const astUtils = createAstUtils(context.settings);
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const topLevelDescribes = [];
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const options = context.options[0] || {};
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let suiteLimit;
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if (isNil(options.limit)) {
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suiteLimit = defaultSuiteLimit;
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} else {
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suiteLimit = options.limit;
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}
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return {
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CallExpression(node) {
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if (astUtils.isDescribe(node)) {
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const scope = context.getScope();
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if (isTopLevelScope(scope)) {
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topLevelDescribes.push(node);
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}
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}
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},
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'Program:exit'() {
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if (topLevelDescribes.length > suiteLimit) {
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context.report({
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node: topLevelDescribes[suiteLimit],
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message: `The number of top-level suites is more than ${ suiteLimit }.`
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});
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}
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}
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};
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}
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};
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