@netdata/charts/dist/es6/sdk/parseDOM.test.js

Netdata frontend SDK and chart utilities

function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
import parseDOM from "./parseDOM";
describe("parseDOM", function () {
  var mockSDK;
  var mockDocument;
  beforeEach(function () {
    mockSDK = {
      getRoot: jest.fn(function () {
        return {
          id: "root"
        };
      }),
      makeContainer: jest.fn(function () {
        return {
          id: "container"
        };
      }),
      makeChart: jest.fn(function () {
        return {
          id: "chart"
        };
      })
    };

    // Mock DOM
    global.document = {
      querySelectorAll: jest.fn(function () {
        return [];
      })
    };
  });
  it("creates parseDOM result object", function () {
    var result = parseDOM(mockSDK);
    expect(_typeof(result)).toBe("object");
    expect(result).toHaveProperty("elements");
    expect(result).toHaveProperty("nodeByElement");
  });
  it("handles empty DOM", function () {
    expect(function () {
      return parseDOM(mockSDK);
    }).not.toThrow();
  });
  it("initializes with SDK when elements present", function () {
    mockSDK.getRoot.mockReturnValue({
      appendChild: jest.fn()
    });
    global.document.querySelectorAll = jest.fn(function () {
      return [{
        hasAttribute: jest.fn(function () {
          return true;
        }),
        getAttributeNames: jest.fn(function () {
          return ["data-id"];
        }),
        getAttribute: jest.fn(function () {
          return "test";
        }),
        parentElement: null
      }];
    });
    parseDOM(mockSDK);
    expect(mockSDK.getRoot).toBeCalled();
  });
});