@fgv/ts-utils-jest/dist/matchers/toFailTest/index.js

Custom matchers for ts-utils result class

/* eslint-disable @typescript-eslint/no-unused-vars */
import { matcherName, predicate } from './predicate';
import { matcherHint } from 'jest-matcher-utils';
import { printExpectedResult } from '../../utils/matcherHelpers';
function passMessage() {
    return () => [
        matcherHint(`.not.${matcherName}`, 'callback'),
        printExpectedResult('failure', false),
        '  Received: Test failed'
    ].join('\n');
}
function failMessage() {
    return () => [
        matcherHint(`${matcherName}`, 'callback'),
        printExpectedResult('failure', true),
        '  Received: Test passed'
    ].join('\n');
}
export default {
    toFailTest: function (cb) {
        const pass = predicate(cb);
        if (pass) {
            return { pass: true, message: passMessage() };
        }
        return { pass: false, message: failMessage() };
    }
};
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