/
helpers.ts
74 lines (64 loc) · 2.34 KB
/
helpers.ts
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/**
* 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.
*/
import * as path from 'path';
import slash = require('slash');
import glob = require('glob');
import type {Config} from '@jest/types';
const OUTSIDE_JEST_VM_PROTOCOL = 'jest-main:';
// String manipulation is easier here, fileURLToPath is only in newer Nodes,
// plus setting non-standard protocols on URL objects is difficult.
export const createOutsideJestVmPath = (path: string): string =>
OUTSIDE_JEST_VM_PROTOCOL + '//' + encodeURIComponent(path);
export const decodePossibleOutsideJestVmPath = (
outsideJestVmPath: string,
): string | undefined => {
if (outsideJestVmPath.startsWith(OUTSIDE_JEST_VM_PROTOCOL)) {
return decodeURIComponent(
outsideJestVmPath.replace(
new RegExp('^' + OUTSIDE_JEST_VM_PROTOCOL + '//'),
'',
),
);
}
return undefined;
};
export const findSiblingsWithFileExtension = (
moduleFileExtensions: Config.ProjectConfig['moduleFileExtensions'],
from: Config.Path,
moduleName: string,
): string => {
if (!path.isAbsolute(moduleName) && path.extname(moduleName) === '') {
const dirname = path.dirname(from);
const pathToModule = path.resolve(dirname, moduleName);
try {
const slashedDirname = slash(dirname);
const matches = glob
.sync(`${pathToModule}.*`)
.map(match => slash(match))
.map(match => {
const relativePath = path.posix.relative(slashedDirname, match);
return path.posix.dirname(match) === slashedDirname
? `./${relativePath}`
: relativePath;
})
.map(match => `\t'${match}'`)
.join('\n');
if (matches) {
const foundMessage = `\n\nHowever, Jest was able to find:\n${matches}`;
const mappedModuleFileExtensions = moduleFileExtensions
.map(ext => `'${ext}'`)
.join(', ');
return (
foundMessage +
"\n\nYou might want to include a file extension in your import, or update your 'moduleFileExtensions', which is currently " +
`[${mappedModuleFileExtensions}].\n\nSee https://jestjs.io/docs/en/configuration#modulefileextensions-arraystring`
);
}
} catch {}
}
return '';
};