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- 'use strict';
- Object.defineProperty(exports, '__esModule', {
- value: true
- });
- exports.default = generateEmptyCoverage;
- function fs() {
- const data = _interopRequireWildcard(require('graceful-fs'));
- fs = function () {
- return data;
- };
- return data;
- }
- function _istanbulLibCoverage() {
- const data = require('istanbul-lib-coverage');
- _istanbulLibCoverage = function () {
- return data;
- };
- return data;
- }
- function _istanbulLibInstrument() {
- const data = require('istanbul-lib-instrument');
- _istanbulLibInstrument = function () {
- return data;
- };
- return data;
- }
- function _transform() {
- const data = require('@jest/transform');
- _transform = function () {
- return data;
- };
- return data;
- }
- function _getRequireWildcardCache(nodeInterop) {
- if (typeof WeakMap !== 'function') return null;
- var cacheBabelInterop = new WeakMap();
- var cacheNodeInterop = new WeakMap();
- return (_getRequireWildcardCache = function (nodeInterop) {
- return nodeInterop ? cacheNodeInterop : cacheBabelInterop;
- })(nodeInterop);
- }
- function _interopRequireWildcard(obj, nodeInterop) {
- if (!nodeInterop && obj && obj.__esModule) {
- return obj;
- }
- if (obj === null || (typeof obj !== 'object' && typeof obj !== 'function')) {
- return {default: obj};
- }
- var cache = _getRequireWildcardCache(nodeInterop);
- if (cache && cache.has(obj)) {
- return cache.get(obj);
- }
- var newObj = {};
- var hasPropertyDescriptor =
- Object.defineProperty && Object.getOwnPropertyDescriptor;
- for (var key in obj) {
- if (key !== 'default' && Object.prototype.hasOwnProperty.call(obj, key)) {
- var desc = hasPropertyDescriptor
- ? Object.getOwnPropertyDescriptor(obj, key)
- : null;
- if (desc && (desc.get || desc.set)) {
- Object.defineProperty(newObj, key, desc);
- } else {
- newObj[key] = obj[key];
- }
- }
- }
- newObj.default = obj;
- if (cache) {
- cache.set(obj, newObj);
- }
- return newObj;
- }
- /**
- * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
- async function generateEmptyCoverage(
- source,
- filename,
- globalConfig,
- config,
- changedFiles,
- sourcesRelatedToTestsInChangedFiles
- ) {
- const coverageOptions = {
- changedFiles,
- collectCoverage: globalConfig.collectCoverage,
- collectCoverageFrom: globalConfig.collectCoverageFrom,
- collectCoverageOnlyFrom: globalConfig.collectCoverageOnlyFrom,
- coverageProvider: globalConfig.coverageProvider,
- sourcesRelatedToTestsInChangedFiles
- };
- let coverageWorkerResult = null;
- if ((0, _transform().shouldInstrument)(filename, coverageOptions, config)) {
- if (coverageOptions.coverageProvider === 'v8') {
- const stat = fs().statSync(filename);
- return {
- kind: 'V8Coverage',
- result: {
- functions: [
- {
- functionName: '(empty-report)',
- isBlockCoverage: true,
- ranges: [
- {
- count: 0,
- endOffset: stat.size,
- startOffset: 0
- }
- ]
- }
- ],
- scriptId: '0',
- url: filename
- }
- };
- }
- const scriptTransformer = await (0, _transform().createScriptTransformer)(
- config
- ); // Transform file with instrumentation to make sure initial coverage data is well mapped to original code.
- const {code} = await scriptTransformer.transformSourceAsync(
- filename,
- source,
- {
- instrument: true,
- supportsDynamicImport: true,
- supportsExportNamespaceFrom: true,
- supportsStaticESM: true,
- supportsTopLevelAwait: true
- }
- ); // TODO: consider passing AST
- const extracted = (0, _istanbulLibInstrument().readInitialCoverage)(code); // Check extracted initial coverage is not null, this can happen when using /* istanbul ignore file */
- if (extracted) {
- coverageWorkerResult = {
- coverage: (0, _istanbulLibCoverage().createFileCoverage)(
- extracted.coverageData
- ),
- kind: 'BabelCoverage'
- };
- }
- }
- return coverageWorkerResult;
- }
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