jest-extended/dist/matchers/toChangeTo.js

Additional Jest matchers

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.toChangeTo = toChangeTo;
/**
 * Use `.toChangeTo` when checking if a value changed to a specific value.
 */
function toChangeTo(mutator, checker, to) {
    // @ts-expect-error OK to have implicit any for this.utils
    const { printReceived: print, matcherHint: hint } = this.utils;
    const before = checker();
    if (before === to) {
        const noChangeMessage = `${hint('.toChangeTo', 'received', '')}\n\nCannot expect a value to change to its original state, received:  ${print(before)}`;
        return { pass: false, message: () => noChangeMessage };
    }
    mutator();
    const received = checker();
    const passMessage = `
${hint('.not.toChangeTo', 'received', '')}\n\nExpected value to not change to ${to}, received:\n  ${print(received)}
`.trim();
    const failMessage = `
${hint('.toChangeto', 'received', '')}\n\nExpected value to change to ${to}, received:\n  ${print(received)}
`.trim();
    const pass = received !== before && received === to;
    return { pass, message: () => (pass ? passMessage : failMessage) };
}