135 lines
5.2 KiB
JavaScript
135 lines
5.2 KiB
JavaScript
'use strict';Object.defineProperty(exports, "__esModule", { value: true });
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var _jestMatcherUtils = require('jest-matcher-utils');
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var _chalk = require('chalk');var _chalk2 = _interopRequireDefault(_chalk);
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var _jestDiff = require('jest-diff');var _jestDiff2 = _interopRequireDefault(_jestDiff);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };} /**
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* Copyright (c) 2017-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 assertOperatorsMap = {
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'!=': 'notEqual',
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'!==': 'notStrictEqual',
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'==': 'equal',
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'===': 'strictEqual' };
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const humanReadableOperators = {
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deepEqual: 'to deeply equal',
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deepStrictEqual: 'to deeply and strictly equal',
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notDeepEqual: 'not to deeply equal',
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notDeepStrictEqual: 'not to deeply and strictly equal' };
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const getOperatorName = (operator, stack) => {
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if (typeof operator === 'string') {
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return assertOperatorsMap[operator] || operator;
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}
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if (stack.match('.doesNotThrow')) {
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return 'doesNotThrow';
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}
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if (stack.match('.throws')) {
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return 'throws';
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}
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return '';
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};
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const operatorMessage = (operator, negator) =>
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typeof operator === 'string' ?
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operator.startsWith('!') || operator.startsWith('=') ?
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`${negator ? 'not ' : ''}to be (operator: ${operator}):\n` :
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`${humanReadableOperators[operator] || operator} to:\n` :
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'';
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const assertThrowingMatcherHint = operatorName => {
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return (
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_chalk2.default.dim('assert') +
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_chalk2.default.dim('.' + operatorName + '(') +
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_chalk2.default.red('function') +
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_chalk2.default.dim(')'));
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};
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const assertMatcherHint = (operator, operatorName) => {
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let message =
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_chalk2.default.dim('assert') +
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_chalk2.default.dim('.' + operatorName + '(') +
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_chalk2.default.red('received') +
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_chalk2.default.dim(', ') +
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_chalk2.default.green('expected') +
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_chalk2.default.dim(')');
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if (operator === '==') {
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message +=
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' or ' +
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_chalk2.default.dim('assert') +
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_chalk2.default.dim('(') +
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_chalk2.default.red('received') +
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_chalk2.default.dim(') ');
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}
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return message;
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};
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function assertionErrorMessage(error, options) {const
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expected = error.expected,actual = error.actual,message = error.message,operator = error.operator,stack = error.stack;
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const diffString = (0, _jestDiff2.default)(expected, actual, options);
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const negator =
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typeof operator === 'string' && (
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operator.startsWith('!') || operator.startsWith('not'));
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const hasCustomMessage = !error.generatedMessage;
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const operatorName = getOperatorName(operator, stack);
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if (operatorName === 'doesNotThrow') {
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return (
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assertThrowingMatcherHint(operatorName) +
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'\n\n' +
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_chalk2.default.reset(`Expected the function not to throw an error.\n`) +
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_chalk2.default.reset(`Instead, it threw:\n`) +
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` ${(0, _jestMatcherUtils.printReceived)(actual)}` +
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_chalk2.default.reset(hasCustomMessage ? '\n\nMessage:\n ' + message : '') +
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stack.replace(/AssertionError(.*)/g, ''));
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}
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if (operatorName === 'throws') {
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return (
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assertThrowingMatcherHint(operatorName) +
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'\n\n' +
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_chalk2.default.reset(`Expected the function to throw an error.\n`) +
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_chalk2.default.reset(`But it didn't throw anything.`) +
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_chalk2.default.reset(hasCustomMessage ? '\n\nMessage:\n ' + message : '') +
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stack.replace(/AssertionError(.*)/g, ''));
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}
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return (
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assertMatcherHint(operator, operatorName) +
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'\n\n' +
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_chalk2.default.reset(`Expected value ${operatorMessage(operator, negator)}`) +
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` ${(0, _jestMatcherUtils.printExpected)(expected)}\n` +
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_chalk2.default.reset(`Received:\n`) +
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` ${(0, _jestMatcherUtils.printReceived)(actual)}` +
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_chalk2.default.reset(hasCustomMessage ? '\n\nMessage:\n ' + message : '') + (
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diffString ? `\n\nDifference:\n\n${diffString}` : '') +
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stack.replace(/AssertionError(.*)/g, ''));
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}exports.default =
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assertionErrorMessage; |