react-scripts/node_modules/jest-matchers/build/spyMatchers.js

Configuration and scripts for Create React App.

/**
 * Copyright (c) 2014, Facebook, Inc. All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * 
 */

'use strict';var _require =







require('jest-matcher-utils');const ensureNoExpected = _require.ensureNoExpected;const ensureExpectedIsNumber = _require.ensureExpectedIsNumber;const pluralize = _require.pluralize;

const spyMatchers = {
  toHaveBeenCalled(actual, expected) {
    ensureNoExpected(expected, 'toHaveBeenCalled');
    ensureMockOrSpy(actual, 'toHaveBeenCalled');

    return isSpy(actual) ?
    jasmineToHaveBeenCalled(actual) :
    jestToHaveBeenCalled(actual);
  },

  toBeCalled(actual, expected) {
    ensureNoExpected(expected, 'toBeCalled');
    ensureMockOrSpy(actual, 'toBeCalled');
    return isSpy(actual) ?
    jasmineToHaveBeenCalled(actual) :
    jestToHaveBeenCalled(actual);
  },

  toHaveBeenCalledTimes(actual, expected) {
    ensureExpectedIsNumber(expected, 'toHaveBeenCalledTimes');
    ensureMockOrSpy(actual, 'toHaveBeenCalledTimes');

    const actualIsSpy = isSpy(actual);
    const type = actualIsSpy ? 'spy' : 'mock function';
    const count = actualIsSpy ?
    actual.calls.count() :
    actual.mock.calls.length;
    const pass = count === expected;
    const message = pass ?
    `Expected the ${ type } not to be called ${ pluralize('time', expected) }` +
    `, but it was called ${ pluralize('time', count) }.` :
    `Expected the ${ type } to be called ${ pluralize('time', expected) },` +
    ` but it was called ${ pluralize('time', count) }.`;

    return { message, pass };
  } };


const jestToHaveBeenCalled = actual => {
  const pass = actual.mock.calls.length > 0;
  const message = pass ?
  `Expected the mock function not to be called, but it was` +
  ` called ${ pluralize('time', actual.mock.calls.length) }.` :
  `Expected the mock function to be called.`;

  return { message, pass };
};

const jasmineToHaveBeenCalled = actual => {
  const pass = actual.calls.any();
  const message = pass ?
  `Expected the spy not to be called, but it was` +
  ` called ${ pluralize('time', actual.calls.count()) }.` :
  `Expected the spy to be called.`;

  return { message, pass };
};

const isSpy = spy => spy.calls && typeof spy.calls.count === 'function';

const ensureMockOrSpy = (mockOrSpy, matcherName) => {
  if (
  (mockOrSpy.calls === undefined || mockOrSpy.calls.all === undefined) &&
  mockOrSpy._isMockFunction !== true)
  {
    throw new Error(
    `${ matcherName } matcher can only be used on a spy or mock function.`);

  }
};

module.exports = spyMatchers;