298 lines
8.7 KiB
JavaScript
298 lines
8.7 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.deepMerge = exports.saveSnapshotFile = exports.ensureDirectoryExists = exports.escapeBacktickString = exports.unescape = exports.serialize = exports.getSnapshotData = exports.keyToTestName = exports.testNameToKey = exports.SNAPSHOT_VERSION_WARNING = exports.SNAPSHOT_GUIDE_LINK = exports.SNAPSHOT_VERSION = void 0;
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var _fs = _interopRequireDefault(require('fs'));
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var _path = _interopRequireDefault(require('path'));
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var _mkdirp = _interopRequireDefault(require('mkdirp'));
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var _naturalCompare = _interopRequireDefault(require('natural-compare'));
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var _chalk = _interopRequireDefault(require('chalk'));
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var _prettyFormat = _interopRequireDefault(require('pretty-format'));
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var _plugins = require('./plugins');
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function _interopRequireDefault(obj) {
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return obj && obj.__esModule ? obj : {default: obj};
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}
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var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
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function _objectSpread(target) {
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for (var i = 1; i < arguments.length; i++) {
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var source = arguments[i] != null ? arguments[i] : {};
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var ownKeys = Object.keys(source);
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if (typeof Object.getOwnPropertySymbols === 'function') {
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ownKeys = ownKeys.concat(
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Object.getOwnPropertySymbols(source).filter(function(sym) {
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return Object.getOwnPropertyDescriptor(source, sym).enumerable;
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})
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);
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}
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ownKeys.forEach(function(key) {
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_defineProperty(target, key, source[key]);
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});
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}
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return target;
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}
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function _defineProperty(obj, key, value) {
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if (key in obj) {
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Object.defineProperty(obj, key, {
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value: value,
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enumerable: true,
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configurable: true,
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writable: true
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});
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} else {
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obj[key] = value;
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}
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return obj;
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}
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var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
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var jestWriteFile =
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global[Symbol.for('jest-native-write-file')] || _fs.default.writeFileSync;
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var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
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var jestReadFile =
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global[Symbol.for('jest-native-read-file')] || _fs.default.readFileSync;
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var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
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var jestExistsFile =
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global[Symbol.for('jest-native-exists-file')] || _fs.default.existsSync;
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const SNAPSHOT_VERSION = '1';
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exports.SNAPSHOT_VERSION = SNAPSHOT_VERSION;
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const SNAPSHOT_VERSION_REGEXP = /^\/\/ Jest Snapshot v(.+),/;
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const SNAPSHOT_GUIDE_LINK = 'https://goo.gl/fbAQLP';
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exports.SNAPSHOT_GUIDE_LINK = SNAPSHOT_GUIDE_LINK;
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const SNAPSHOT_VERSION_WARNING = _chalk.default.yellow(
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`${_chalk.default.bold('Warning')}: Before you upgrade snapshots, ` +
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`we recommend that you revert any local changes to tests or other code, ` +
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`to ensure that you do not store invalid state.`
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);
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exports.SNAPSHOT_VERSION_WARNING = SNAPSHOT_VERSION_WARNING;
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const writeSnapshotVersion = () =>
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`// Jest Snapshot v${SNAPSHOT_VERSION}, ${SNAPSHOT_GUIDE_LINK}`;
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const validateSnapshotVersion = snapshotContents => {
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const versionTest = SNAPSHOT_VERSION_REGEXP.exec(snapshotContents);
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const version = versionTest && versionTest[1];
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if (!version) {
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return new Error(
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_chalk.default.red(
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`${_chalk.default.bold(
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'Outdated snapshot'
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)}: No snapshot header found. ` +
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`Jest 19 introduced versioned snapshots to ensure all developers ` +
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`on a project are using the same version of Jest. ` +
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`Please update all snapshots during this upgrade of Jest.\n\n`
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) + SNAPSHOT_VERSION_WARNING
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);
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}
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if (version < SNAPSHOT_VERSION) {
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return new Error(
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_chalk.default.red(
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`${_chalk.default.red.bold(
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'Outdated snapshot'
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)}: The version of the snapshot ` +
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`file associated with this test is outdated. The snapshot file ` +
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`version ensures that all developers on a project are using ` +
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`the same version of Jest. ` +
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`Please update all snapshots during this upgrade of Jest.\n\n`
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) +
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`Expected: v${SNAPSHOT_VERSION}\n` +
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`Received: v${version}\n\n` +
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SNAPSHOT_VERSION_WARNING
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);
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}
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if (version > SNAPSHOT_VERSION) {
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return new Error(
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_chalk.default.red(
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`${_chalk.default.red.bold(
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'Outdated Jest version'
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)}: The version of this ` +
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`snapshot file indicates that this project is meant to be used ` +
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`with a newer version of Jest. The snapshot file version ensures ` +
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`that all developers on a project are using the same version of ` +
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`Jest. Please update your version of Jest and re-run the tests.\n\n`
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) +
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`Expected: v${SNAPSHOT_VERSION}\n` +
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`Received: v${version}`
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);
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}
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return null;
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};
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function isObject(item) {
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return item && typeof item === 'object' && !Array.isArray(item);
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}
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const testNameToKey = (testName, count) => testName + ' ' + count;
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exports.testNameToKey = testNameToKey;
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const 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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exports.keyToTestName = keyToTestName;
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const 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 (jestExistsFile(snapshotPath)) {
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try {
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snapshotContents = jestReadFile(snapshotPath, 'utf8'); // eslint-disable-next-line no-new-func
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const populate = new Function('exports', snapshotContents);
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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 {
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data,
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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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exports.getSnapshotData = getSnapshotData;
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const addExtraLineBreaks = string =>
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string.includes('\n') ? `\n${string}\n` : string;
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const serialize = data =>
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addExtraLineBreaks(
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normalizeNewlines(
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(0, _prettyFormat.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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exports.serialize = serialize;
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const unescape = data => data.replace(/\\(")/g, '$1');
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exports.unescape = unescape;
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const escapeBacktickString = str => str.replace(/`|\\|\${/g, '\\$&');
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exports.escapeBacktickString = escapeBacktickString;
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const printBacktickString = str => '`' + escapeBacktickString(str) + '`';
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const ensureDirectoryExists = filePath => {
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try {
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_mkdirp.default.sync(
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_path.default.join(_path.default.dirname(filePath)),
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'777'
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);
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} catch (e) {}
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};
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exports.ensureDirectoryExists = ensureDirectoryExists;
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const normalizeNewlines = string => string.replace(/\r\n|\r/g, '\n');
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const saveSnapshotFile = (snapshotData, snapshotPath) => {
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const snapshots = Object.keys(snapshotData)
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.sort(_naturalCompare.default)
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.map(
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key =>
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'exports[' +
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printBacktickString(key) +
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'] = ' +
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printBacktickString(normalizeNewlines(snapshotData[key])) +
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';'
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);
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ensureDirectoryExists(snapshotPath);
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jestWriteFile(
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snapshotPath,
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writeSnapshotVersion() + '\n\n' + snapshots.join('\n\n') + '\n'
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);
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};
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exports.saveSnapshotFile = saveSnapshotFile;
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const deepMergeArray = (target, source) => {
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const mergedOutput = Array.from(target);
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source.forEach((sourceElement, index) => {
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const targetElement = mergedOutput[index];
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if (Array.isArray(target[index])) {
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mergedOutput[index] = deepMergeArray(target[index], sourceElement);
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} else if (isObject(targetElement)) {
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mergedOutput[index] = deepMerge(target[index], sourceElement);
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} else {
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// Source does not exist in target or target is primitive and cannot be deep merged
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mergedOutput[index] = sourceElement;
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}
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});
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return mergedOutput;
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};
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const deepMerge = (target, source) => {
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const mergedOutput = _objectSpread({}, target);
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if (isObject(target) && isObject(source)) {
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Object.keys(source).forEach(key => {
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if (isObject(source[key]) && !source[key].$$typeof) {
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if (!(key in target))
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Object.assign(mergedOutput, {
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[key]: source[key]
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});
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else mergedOutput[key] = deepMerge(target[key], source[key]);
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} else if (Array.isArray(source[key])) {
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mergedOutput[key] = deepMergeArray(target[key], source[key]);
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} else {
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Object.assign(mergedOutput, {
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[key]: source[key]
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});
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}
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});
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}
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return mergedOutput;
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};
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exports.deepMerge = deepMerge;
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