@vergiss/chooks/lib/utils/__tests__/tools.test.js

React hooks library

"use strict";

import "core-js/modules/es.symbol";
import "core-js/modules/es.symbol.description";
import "core-js/modules/es.symbol.iterator";
import "core-js/modules/es.array.iterator";
import "core-js/modules/es.date.now";
import "core-js/modules/es.date.to-string";
import "core-js/modules/es.function.name";
import "core-js/modules/es.object.define-property";
import "core-js/modules/es.object.keys";
import "core-js/modules/es.object.to-string";
import "core-js/modules/es.promise";
import "core-js/modules/es.string.iterator";
import "core-js/modules/web.dom-collections.iterator";
import "core-js/modules/web.timers";
import _typeof from "@babel/runtime/helpers/typeof";

var __awaiter = this && this.__awaiter || function (thisArg, _arguments, P, generator) {
  function adopt(value) {
    return value instanceof P ? value : new P(function (resolve) {
      resolve(value);
    });
  }

  return new (P || (P = Promise))(function (resolve, reject) {
    function fulfilled(value) {
      try {
        step(generator.next(value));
      } catch (e) {
        reject(e);
      }
    }

    function rejected(value) {
      try {
        step(generator["throw"](value));
      } catch (e) {
        reject(e);
      }
    }

    function step(result) {
      result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected);
    }

    step((generator = generator.apply(thisArg, _arguments || [])).next());
  });
};

var __generator = this && this.__generator || function (thisArg, body) {
  var _ = {
    label: 0,
    sent: function sent() {
      if (t[0] & 1) throw t[1];
      return t[1];
    },
    trys: [],
    ops: []
  },
      f,
      y,
      t,
      g;
  return g = {
    next: verb(0),
    "throw": verb(1),
    "return": verb(2)
  }, typeof Symbol === "function" && (g[Symbol.iterator] = function () {
    return this;
  }), g;

  function verb(n) {
    return function (v) {
      return step([n, v]);
    };
  }

  function step(op) {
    if (f) throw new TypeError("Generator is already executing.");

    while (_) {
      try {
        if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
        if (y = 0, t) op = [op[0] & 2, t.value];

        switch (op[0]) {
          case 0:
          case 1:
            t = op;
            break;

          case 4:
            _.label++;
            return {
              value: op[1],
              done: false
            };

          case 5:
            _.label++;
            y = op[1];
            op = [0];
            continue;

          case 7:
            op = _.ops.pop();

            _.trys.pop();

            continue;

          default:
            if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) {
              _ = 0;
              continue;
            }

            if (op[0] === 3 && (!t || op[1] > t[0] && op[1] < t[3])) {
              _.label = op[1];
              break;
            }

            if (op[0] === 6 && _.label < t[1]) {
              _.label = t[1];
              t = op;
              break;
            }

            if (t && _.label < t[2]) {
              _.label = t[2];

              _.ops.push(op);

              break;
            }

            if (t[2]) _.ops.pop();

            _.trys.pop();

            continue;
        }

        op = body.call(thisArg, _);
      } catch (e) {
        op = [6, e];
        y = 0;
      } finally {
        f = t = 0;
      }
    }

    if (op[0] & 5) throw op[1];
    return {
      value: op[0] ? op[1] : void 0,
      done: true
    };
  }
};

Object.defineProperty(exports, "__esModule", {
  value: true
});

var tools = require("../tools");

describe('Tools', function () {
  describe('parseJson', function () {
    var parseJson = tools.parseJson;
    it('should return correct object', function () {
      var res = parseJson('{"name": "coma", "age": 21}');
      expect(res.name).toBe('coma');
      expect(res.age).toBe(21);
    });
    it('should return empty object without the second param or `object` when error', function () {
      var res = parseJson('{"nam');
      expect(Object.keys(res).length).toBe(0);
    });
    it('should return empty strikng without the second param valued `string` when error', function () {
      var res = parseJson('{"nam', 'string');
      expect(res).toBe('');
    });
  });
  describe('sleep', function () {
    var sleep = tools.sleep;
    it('should return a Promise', function () {
      var r = sleep(100);
      expect(r.constructor).toBe(Promise);
      expect(_typeof(r.then)).toBe('function');
    });
    it('should await `delay` ms', function () {
      return __awaiter(void 0, void 0, void 0, function () {
        var now;
        return __generator(this, function (_a) {
          switch (_a.label) {
            case 0:
              now = Date.now();
              return [4
              /*yield*/
              , sleep(500)];

            case 1:
              _a.sent();

              expect(Date.now() - now - 500).toBeLessThanOrEqual(30);
              return [2
              /*return*/
              ];
          }
        });
      });
    });
  });
  describe('debounce', function () {
    var debounce = tools.debounce;
    it('should return a function', function () {
      expect(_typeof(debounce(console.log, 100))).toBe('function');
    });
    it('should wait until delay without further call', function () {
      return __awaiter(void 0, void 0, void 0, function () {
        var a, b;
        return __generator(this, function (_a) {
          a = 1;
          b = debounce(function (x) {
            return a += x;
          }, 300);
          b(2);
          setTimeout(function () {
            b(3);
            setTimeout(function () {
              expect(a).toBe(4);
            }, 400);
          }, 200);
          return [2
          /*return*/
          ];
        });
      });
    });
  });
  describe('getUrlParams', function () {
    var getUrlParams = tools.getUrlParams;
    it('should return value with a name', function () {
      var res = getUrlParams('key', 'https://www.example.com?key=123');
      expect(res).toBe('123');
    });
    it('should return an object without name', function () {
      var res = getUrlParams('', 'https://www.example.com?key=123&name=hajo');
      expect(_typeof(res)).toBe('object');
      expect(Object.keys(res).length).toBe(2);
      expect(res.key).toBe('123');
      expect(res.name).toBe('hajo');
    });
  });
});