jest-extended/dist/matchers/toHaveBeenCalledOnce.js

Additional Jest matchers

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.toHaveBeenCalledOnce = toHaveBeenCalledOnce;
const utils_1 = require("../utils");
function toHaveBeenCalledOnce(actual) {
    // @ts-expect-error OK to have implicit any for this.utils
    const { printReceived, printWithType, matcherHint } = this.utils;
    if (!(0, utils_1.isJestMockOrSpy)(actual)) {
        return {
            pass: false,
            message: () => matcherHint('.toHaveBeenCalledOnce') +
                '\n\n' +
                `Matcher error: ${printReceived('received')} must be a mock or spy function` +
                '\n\n' +
                printWithType('Received', actual, printReceived),
        };
    }
    // @ts-expect-error isJestMockOrSpy provides the type check
    const pass = actual.mock.calls.length === 1;
    return {
        pass,
        message: () => pass
            ? matcherHint('.not.toHaveBeenCalledOnce') +
                '\n\n' +
                'Expected mock function to have been called any amount of times but one, but it was called exactly once.'
            : matcherHint('.toHaveBeenCalledOnce') +
                '\n\n' +
                'Expected mock function to have been called exactly once, but it was called:\n' +
                // @ts-expect-error isJestMockOrSpy provides the type check
                `  ${printReceived(actual.mock.calls.length)} times`,
        actual: actual,
    };
}