How to use the jest-matchers.anything function in jest-matchers

To help you get started, we’ve selected a few jest-matchers examples, based on popular ways it is used in public projects.

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github w3tecch / aurelia-typescript-boilerplate / test / karma-bundle.js View on Github external
function installJestExpect() {
  const expect = require('jest-matchers');
  global.expect = expect;

  const jasmine = global.jasmine;
  jasmine.anything = expect.anything;
  jasmine.any = expect.any;
  jasmine.objectContaining = expect.objectContaining;
  jasmine.arrayContaining = expect.arrayContaining;
  jasmine.stringMatching = expect.stringMatching;
  jasmine.addMatchers = (jasmineMatchersObject) => {
    const jestMatchersObject = Object.create(null);
    Object.keys(jasmineMatchersObject).forEach(name => {
      jestMatchersObject[name] = function() {
        const result = jasmineMatchersObject[name](jasmine.matchersUtil, null);
        // if there is no 'negativeCompare', both should be handled by `compare`
        const negativeCompare = result.negativeCompare || result.compare;

        return this.isNot
          ? negativeCompare.apply(null, arguments)
          : result.compare.apply(null, arguments);
      };