145 lines
6.0 KiB
JavaScript
145 lines
6.0 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.saveSnapshotFile = exports.ensureDirectoryExists = exports.unescape = exports.serialize = exports.getSnapshotData = exports.getSnapshotPath = exports.keyToTestName = exports.testNameToKey = exports.SNAPSHOT_VERSION_WARNING = exports.SNAPSHOT_GUIDE_LINK = exports.SNAPSHOT_VERSION = exports.SNAPSHOT_EXTENSION = undefined;
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var _plugins = require('./plugins');
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var _chalk = require('chalk');
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var _chalk2 = _interopRequireDefault(_chalk);
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var _fs = require('fs');
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var _fs2 = _interopRequireDefault(_fs);
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var _mkdirp = require('mkdirp');
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var _mkdirp2 = _interopRequireDefault(_mkdirp);
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var _naturalCompare = require('natural-compare');
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var _naturalCompare2 = _interopRequireDefault(_naturalCompare);
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var _path = require('path');
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var _path2 = _interopRequireDefault(_path);
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var _prettyFormat = require('pretty-format');
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var _prettyFormat2 = _interopRequireDefault(_prettyFormat);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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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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*
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*/
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const SNAPSHOT_EXTENSION = exports.SNAPSHOT_EXTENSION = 'snap';
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const SNAPSHOT_VERSION = exports.SNAPSHOT_VERSION = '1';
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const SNAPSHOT_VERSION_REGEXP = /^\/\/ Jest Snapshot v(.+),/;
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const SNAPSHOT_GUIDE_LINK = exports.SNAPSHOT_GUIDE_LINK = 'https://goo.gl/fbAQLP';
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const SNAPSHOT_VERSION_WARNING = exports.SNAPSHOT_VERSION_WARNING = _chalk2.default.yellow(`${_chalk2.default.bold('Warning')}: Before you upgrade snapshots, ` + `we recommend that you revert any local changes to tests or other code, ` + `to ensure that you do not store invalid state.`);
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const writeSnapshotVersion = () => `// Jest Snapshot v${SNAPSHOT_VERSION}, ${SNAPSHOT_GUIDE_LINK}`;
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const validateSnapshotVersion = snapshotContents => {
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const versionTest = SNAPSHOT_VERSION_REGEXP.exec(snapshotContents);
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const version = versionTest && versionTest[1];
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if (!version) {
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return new Error(_chalk2.default.red(`${_chalk2.default.bold('Outdated snapshot')}: No snapshot header found. ` + `Jest 19 introduced versioned snapshots to ensure all developers ` + `on a project are using the same version of Jest. ` + `Please update all snapshots during this upgrade of Jest.\n\n`) + SNAPSHOT_VERSION_WARNING);
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}
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if (version < SNAPSHOT_VERSION) {
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return new Error(_chalk2.default.red(`${_chalk2.default.red.bold('Outdated snapshot')}: The version of the snapshot ` + `file associated with this test is outdated. The snapshot file ` + `version ensures that all developers on a project are using ` + `the same version of Jest. ` + `Please update all snapshots during this upgrade of Jest.\n\n`) + `Expected: v${SNAPSHOT_VERSION}\n` + `Received: v${version}\n\n` + SNAPSHOT_VERSION_WARNING);
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}
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if (version > SNAPSHOT_VERSION) {
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return new Error(_chalk2.default.red(`${_chalk2.default.red.bold('Outdated Jest version')}: The version of this ` + `snapshot file indicates that this project is meant to be used ` + `with a newer version of Jest. The snapshot file version ensures ` + `that all developers on a project are using the same version of ` + `Jest. Please update your version of Jest and re-run the tests.\n\n`) + `Expected: v${SNAPSHOT_VERSION}\n` + `Received: v${version}`);
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}
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return null;
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};
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const testNameToKey = exports.testNameToKey = (testName, count) => testName + ' ' + count;
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const keyToTestName = exports.keyToTestName = key => {
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if (!/ \d+$/.test(key)) {
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throw new Error('Snapshot keys must end with a number.');
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}
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return key.replace(/ \d+$/, '');
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};
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const getSnapshotPath = exports.getSnapshotPath = testPath => _path2.default.join(_path2.default.join(_path2.default.dirname(testPath), '__snapshots__'), _path2.default.basename(testPath) + '.' + SNAPSHOT_EXTENSION);
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const getSnapshotData = exports.getSnapshotData = (snapshotPath, update) => {
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const data = Object.create(null);
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let snapshotContents = '';
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let dirty = false;
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if (_fs2.default.existsSync(snapshotPath)) {
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try {
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snapshotContents = _fs2.default.readFileSync(snapshotPath, 'utf8');
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// eslint-disable-next-line no-new-func
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const populate = new Function('exports', snapshotContents);
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// $FlowFixMe
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populate(data);
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} catch (e) {}
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}
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const validationResult = validateSnapshotVersion(snapshotContents);
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const isInvalid = snapshotContents && validationResult;
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if (update === 'none' && isInvalid) {
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throw validationResult;
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}
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if ((update === 'all' || update === 'new') && isInvalid) {
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dirty = true;
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}
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return { data, dirty };
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};
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// Extra line breaks at the beginning and at the end of the snapshot are useful
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// to make the content of the snapshot easier to read
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const addExtraLineBreaks = string => string.includes('\n') ? `\n${string}\n` : string;
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const serialize = exports.serialize = data => {
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return addExtraLineBreaks(normalizeNewlines((0, _prettyFormat2.default)(data, {
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escapeRegex: true,
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plugins: (0, _plugins.getSerializers)(),
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printFunctionName: false
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})));
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};
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// unescape double quotes
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const unescape = exports.unescape = data => data.replace(/\\(")/g, '$1');
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const printBacktickString = str => {
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return '`' + str.replace(/`|\\|\${/g, '\\$&') + '`';
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};
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const ensureDirectoryExists = exports.ensureDirectoryExists = filePath => {
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try {
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_mkdirp2.default.sync(_path2.default.join(_path2.default.dirname(filePath)), '777');
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} catch (e) {}
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};
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const normalizeNewlines = string => string.replace(/\r\n|\r/g, '\n');
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const saveSnapshotFile = exports.saveSnapshotFile = (snapshotData, snapshotPath) => {
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const snapshots = Object.keys(snapshotData).sort(_naturalCompare2.default).map(key => 'exports[' + printBacktickString(key) + '] = ' + printBacktickString(normalizeNewlines(snapshotData[key])) + ';');
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ensureDirectoryExists(snapshotPath);
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_fs2.default.writeFileSync(snapshotPath, writeSnapshotVersion() + '\n\n' + snapshots.join('\n\n') + '\n');
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}; |