mirror of https://github.com/facebook/jest.git
40 lines
1010 B
JavaScript
40 lines
1010 B
JavaScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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const {transformSync: babelTransform} = require('@babel/core');
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const {default: babelIstanbulPlugin} = require('babel-plugin-istanbul');
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// This is imported from this repo
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const jestPreset = require.resolve('babel-preset-jest');
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const options = {
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presets: ['@babel/preset-env', jestPreset],
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retainLines: true,
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sourceMaps: 'inline',
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};
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module.exports = {
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canInstrument: true,
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process(src, filename, transformOptions) {
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options.filename = filename;
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if (transformOptions.instrument) {
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options.auxiliaryCommentBefore = ' istanbul ignore next ';
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options.plugins = [
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[
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babelIstanbulPlugin,
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{
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cwd: transformOptions.config.rootDir,
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exclude: [],
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},
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],
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];
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}
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return babelTransform(src, options) || src;
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},
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};
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