jest-extended/dist/matchers/toChange.js

Additional Jest matchers

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