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- 'use strict';
- Object.defineProperty(exports, '__esModule', {
- value: true
- });
- exports.default = void 0;
- var _chalk = _interopRequireDefault(require('chalk'));
- var _jestMatcherUtils = require('jest-matcher-utils');
- function _interopRequireDefault(obj) {
- return obj && obj.__esModule ? obj : {default: obj};
- }
- /**
- * 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.
- */
- const assertOperatorsMap = {
- '!=': 'notEqual',
- '!==': 'notStrictEqual',
- '==': 'equal',
- '===': 'strictEqual'
- };
- const humanReadableOperators = {
- deepEqual: 'to deeply equal',
- deepStrictEqual: 'to deeply and strictly equal',
- equal: 'to be equal',
- notDeepEqual: 'not to deeply equal',
- notDeepStrictEqual: 'not to deeply and strictly equal',
- notEqual: 'to not be equal',
- notStrictEqual: 'not be strictly equal',
- strictEqual: 'to strictly be equal'
- };
- const getOperatorName = (operator, stack) => {
- if (typeof operator === 'string') {
- return assertOperatorsMap[operator] || operator;
- }
- if (stack.match('.doesNotThrow')) {
- return 'doesNotThrow';
- }
- if (stack.match('.throws')) {
- return 'throws';
- } // this fallback is only needed for versions older than node 10
- if (stack.match('.fail')) {
- return 'fail';
- }
- return '';
- };
- const operatorMessage = operator => {
- const niceOperatorName = getOperatorName(operator, '');
- const humanReadableOperator = humanReadableOperators[niceOperatorName];
- return typeof operator === 'string'
- ? `${humanReadableOperator || niceOperatorName} to:\n`
- : '';
- };
- const assertThrowingMatcherHint = operatorName =>
- operatorName
- ? _chalk.default.dim('assert') +
- _chalk.default.dim('.' + operatorName + '(') +
- _chalk.default.red('function') +
- _chalk.default.dim(')')
- : '';
- const assertMatcherHint = (operator, operatorName, expected) => {
- let message = '';
- if (operator === '==' && expected === true) {
- message =
- _chalk.default.dim('assert') +
- _chalk.default.dim('(') +
- _chalk.default.red('received') +
- _chalk.default.dim(')');
- } else if (operatorName) {
- message =
- _chalk.default.dim('assert') +
- _chalk.default.dim('.' + operatorName + '(') +
- _chalk.default.red('received') +
- _chalk.default.dim(', ') +
- _chalk.default.green('expected') +
- _chalk.default.dim(')');
- }
- return message;
- };
- function assertionErrorMessage(error, options) {
- const {expected, actual, generatedMessage, message, operator, stack} = error;
- const diffString = (0, _jestMatcherUtils.diff)(expected, actual, options);
- const hasCustomMessage = !generatedMessage;
- const operatorName = getOperatorName(operator, stack);
- const trimmedStack = stack
- .replace(message, '')
- .replace(/AssertionError(.*)/g, '');
- if (operatorName === 'doesNotThrow') {
- return (
- buildHintString(assertThrowingMatcherHint(operatorName)) +
- _chalk.default.reset(`Expected the function not to throw an error.\n`) +
- _chalk.default.reset(`Instead, it threw:\n`) +
- ` ${(0, _jestMatcherUtils.printReceived)(actual)}` +
- _chalk.default.reset(
- hasCustomMessage ? '\n\nMessage:\n ' + message : ''
- ) +
- trimmedStack
- );
- }
- if (operatorName === 'throws') {
- return (
- buildHintString(assertThrowingMatcherHint(operatorName)) +
- _chalk.default.reset(`Expected the function to throw an error.\n`) +
- _chalk.default.reset(`But it didn't throw anything.`) +
- _chalk.default.reset(
- hasCustomMessage ? '\n\nMessage:\n ' + message : ''
- ) +
- trimmedStack
- );
- }
- if (operatorName === 'fail') {
- return (
- buildHintString(assertMatcherHint(operator, operatorName, expected)) +
- _chalk.default.reset(hasCustomMessage ? 'Message:\n ' + message : '') +
- trimmedStack
- );
- }
- return (
- buildHintString(assertMatcherHint(operator, operatorName, expected)) +
- _chalk.default.reset(`Expected value ${operatorMessage(operator)}`) +
- ` ${(0, _jestMatcherUtils.printExpected)(expected)}\n` +
- _chalk.default.reset(`Received:\n`) +
- ` ${(0, _jestMatcherUtils.printReceived)(actual)}` +
- _chalk.default.reset(hasCustomMessage ? '\n\nMessage:\n ' + message : '') +
- (diffString ? `\n\nDifference:\n\n${diffString}` : '') +
- trimmedStack
- );
- }
- function buildHintString(hint) {
- return hint ? hint + '\n\n' : '';
- }
- var _default = assertionErrorMessage;
- exports.default = _default;
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