162 lines
7.6 KiB
JavaScript
162 lines
7.6 KiB
JavaScript
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'use strict';
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var _fs = require('fs');var _fs2 = _interopRequireDefault(_fs);
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var _path = require('path');var _path2 = _interopRequireDefault(_path);
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var _jestDiff = require('jest-diff');var _jestDiff2 = _interopRequireDefault(_jestDiff);
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var _jestMatcherUtils = require('jest-matcher-utils');
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var _State = require('./State');var _State2 = _interopRequireDefault(_State);
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var _plugins = require('./plugins');
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var _utils = require('./utils');var utils = _interopRequireWildcard(_utils);function _interopRequireWildcard(obj) {if (obj && obj.__esModule) {return obj;} else {var newObj = {};if (obj != null) {for (var key in obj) {if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];}}newObj.default = obj;return newObj;}}function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };} /**
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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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*/const fileExists = (filePath, hasteFS) => hasteFS.exists(filePath) || _fs2.default.existsSync(filePath);const cleanup = (hasteFS, update) => {const pattern = '\\.' + utils.SNAPSHOT_EXTENSION + '$';const files = hasteFS.matchFiles(pattern);
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const filesRemoved = files.
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filter(
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snapshotFile =>
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!fileExists(
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_path2.default.resolve(
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_path2.default.dirname(snapshotFile),
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'..',
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_path2.default.basename(snapshotFile, '.' + utils.SNAPSHOT_EXTENSION)),
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hasteFS)).
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map(snapshotFile => {
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if (update === 'all') {
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_fs2.default.unlinkSync(snapshotFile);
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}
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}).length;
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return {
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filesRemoved };
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};
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const toMatchSnapshot = function (received, testName) {
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this.dontThrow && this.dontThrow();const
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currentTestName = this.currentTestName,isNot = this.isNot,snapshotState = this.snapshotState;
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if (isNot) {
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throw new Error('Jest: `.not` cannot be used with `.toMatchSnapshot()`.');
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}
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if (!snapshotState) {
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throw new Error('Jest: snapshot state must be initialized.');
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}
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const result = snapshotState.match(
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testName && currentTestName ?
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`${currentTestName}: ${testName}` :
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currentTestName || '',
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received);const
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count = result.count,pass = result.pass;let
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actual = result.actual,expected = result.expected;
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let report;
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if (pass) {
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return { message: () => '', pass: true };
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} else if (!expected) {
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report = () =>
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`New snapshot was ${(0, _jestMatcherUtils.RECEIVED_COLOR)('not written')}. The update flag ` +
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`must be explicitly passed to write a new snapshot.\n\n` +
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`This is likely because this test is run in a continuous integration ` +
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`(CI) environment in which snapshots are not written by default.\n\n` +
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`${(0, _jestMatcherUtils.RECEIVED_COLOR)('Received value')} ` +
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`${actual}`;
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} else {
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expected = (expected || '').trim();
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actual = (actual || '').trim();
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const diffMessage = (0, _jestDiff2.default)(expected, actual, {
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aAnnotation: 'Snapshot',
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bAnnotation: 'Received',
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expand: snapshotState.expand });
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report = () =>
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`${(0, _jestMatcherUtils.RECEIVED_COLOR)('Received value')} does not match ` +
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`${(0, _jestMatcherUtils.EXPECTED_COLOR)('stored snapshot ' + count)}.\n\n` + (
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diffMessage ||
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(0, _jestMatcherUtils.EXPECTED_COLOR)('- ' + (expected || '')) +
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'\n' +
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(0, _jestMatcherUtils.RECEIVED_COLOR)('+ ' + actual));
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}
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// Passing the the actual and expected objects so that a custom reporter
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// could access them, for example in order to display a custom visual diff,
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// or create a different error message
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return {
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actual,
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expected,
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message: () =>
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(0, _jestMatcherUtils.matcherHint)('.toMatchSnapshot', 'value', '') + '\n\n' + report(),
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name: 'toMatchSnapshot',
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pass: false,
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report };
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};
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const toThrowErrorMatchingSnapshot = function (
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received,
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testName,
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fromPromise)
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{
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this.dontThrow && this.dontThrow();const
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isNot = this.isNot;
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if (isNot) {
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throw new Error(
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'Jest: `.not` cannot be used with `.toThrowErrorMatchingSnapshot()`.');
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}
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let error;
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if (fromPromise) {
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error = received;
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} else {
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try {
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received();
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} catch (e) {
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error = e;
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}
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}
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if (error === undefined) {
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throw new Error(
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(0, _jestMatcherUtils.matcherHint)('.toThrowErrorMatchingSnapshot', '() => {}', '') +
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'\n\n' +
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`Expected the function to throw an error.\n` +
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`But it didn't throw anything.`);
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}
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return toMatchSnapshot.call(this, error.message, testName);
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};
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module.exports = {
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EXTENSION: utils.SNAPSHOT_EXTENSION,
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SnapshotState: _State2.default,
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addSerializer: _plugins.addSerializer,
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cleanup,
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getSerializers: _plugins.getSerializers,
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toMatchSnapshot,
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toThrowErrorMatchingSnapshot,
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utils };
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