@netdata/charts/dist/sdk/makeIntls.test.js

Netdata frontend SDK and chart utilities

"use strict";

var _makeIntls = _interopRequireDefault(require("./makeIntls"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { "default": e }; }
describe("makeIntls", function () {
  var mockNavigator;
  beforeEach(function () {
    mockNavigator = {
      language: "en-US"
    };
    Object.defineProperty(global, "navigator", {
      value: mockNavigator,
      configurable: true
    });
    global.Intl = {
      DateTimeFormat: jest.fn(function () {
        return {
          format: jest.fn(function (date) {
            return "formatted-date";
          })
        };
      })
    };
  });
  it("creates intl formatters object", function () {
    var intls = (0, _makeIntls["default"])();
    expect(intls).toHaveProperty("update");
    expect(intls).toHaveProperty("formatTime");
    expect(intls).toHaveProperty("formatDate");
    expect(intls).toHaveProperty("formatXAxis");
    expect(intls).toHaveProperty("destroy");
  });
  it("updates timezone", function () {
    var intls = (0, _makeIntls["default"])();
    expect(function () {
      return intls.update("UTC");
    }).not.toThrow();
    expect(global.Intl.DateTimeFormat).toHaveBeenCalled();
  });
  it("formats time", function () {
    var intls = (0, _makeIntls["default"])();
    intls.update("UTC");
    var result = intls.formatTime(new Date());
    expect(result).toBe("formatted-date");
  });
  it("formats date", function () {
    var intls = (0, _makeIntls["default"])();
    intls.update("UTC");
    var result = intls.formatDate(new Date());
    expect(result).toBe("formatted-date");
  });
  it("formats X axis for midnight", function () {
    var intls = (0, _makeIntls["default"])();
    intls.update("UTC");
    var midnight = new Date("2023-01-01T00:00:00Z");
    var result = intls.formatXAxis(midnight);
    expect(result).toBe("formatted-date");
  });
  it("formats X axis for non-midnight", function () {
    var intls = (0, _makeIntls["default"])();
    intls.update("UTC");
    var nonMidnight = new Date("2023-01-01T12:30:45Z");
    var result = intls.formatXAxis(nonMidnight);
    expect(result).toBe("formatted-date");
  });
  it("falls back to native formatters on error", function () {
    global.Intl.DateTimeFormat = jest.fn(function () {
      throw new Error("Intl error");
    });
    var intls = (0, _makeIntls["default"])();
    intls.update("UTC");
    expect(function () {
      return intls.formatTime(new Date());
    }).not.toThrow();
    expect(function () {
      return intls.formatDate(new Date());
    }).not.toThrow();
  });
  it("destroys formatters", function () {
    var intls = (0, _makeIntls["default"])();
    expect(function () {
      return intls.destroy();
    }).not.toThrow();
  });
});