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

Custom matchers for ts-utils result class

import { printExpectedResult, printReceivedResult } from '../../utils/matcherHelpers';
import { matcherName, predicate } from './predicate';
import { matcherHint } from 'jest-matcher-utils';
function passMessage(received) {
    const expected = 'successful callback';
    const got = [printReceivedResult(received)];
    got.push('  Callback returned true');
    return () => [
        matcherHint(`.not.${matcherName}`, 'result', 'callback'),
        printExpectedResult('success', false, expected),
        ...got
    ].join('\n');
}
function failMessage(received, cbResult) {
    const expected = 'successful callback';
    const got = [printReceivedResult(received)];
    /* c8 ignore else */
    if (cbResult.isFailure()) {
        got.push(cbResult.message);
    }
    else if (cbResult.value === false) {
        got.push('  Callback returned false');
    }
    else if (cbResult.value === undefined) {
        got.push('  Callback was not invoked');
    }
    else {
        throw new Error('Internal error: toSucceedAndSatisfy.failMessage passed success with true');
    }
    return () => [
        matcherHint(`${matcherName}`, 'result', 'callback'),
        printExpectedResult('success', true, expected),
        ...got
    ].join('\n');
}
export default {
    toSucceedAndSatisfy: function (received, test) {
        // For the normal (not '.not') case, we do not want to capture exceptions
        // so that the IDE can display exactly the line on which the failure case.
        // For the .not case, we want to swallow exceptions or expect failures since
        // we're just testing failure and not the reason.
        const capture = this.isNot;
        const cbResult = predicate(received, test, !!capture);
        const pass = cbResult.isSuccess() && cbResult.value === true;
        if (pass) {
            return { pass: true, message: passMessage(received) };
        }
        return { pass: false, message: failMessage(received, cbResult) };
    }
};
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