fixing jest test

colbyfayock · Sep 7, 2021 · d20d304 · d20d304
1 parent a7d3614
commit d20d304
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Showing 2 changed files with 19 additions and 15 deletions.
diff --git a/config/jest.preprocess.js b/config/jest.preprocess.js
@@ -2,4 +2,4 @@ const babelOptions = {
  presets: ["babel-preset-gatsby"],
 };
 
-module.exports = require("babel-jest").createTransformer(babelOptions);
+module.exports = require("babel-jest").default.createTransformer(babelOptions);
diff --git a/tests/lib/util.test.js b/tests/lib/util.test.js
@@ -2,34 +2,38 @@ import { isDomAvailable } from "lib/util";
 
 describe("lib::util", () => {
  describe("isDomAvailable", () => {
- let windowSpy;
-
- beforeEach(() => {
- windowSpy = jest.spyOn(global, "window", "get");
- });
+ let originalWindow = { ...global.window };
 
  afterEach(() => {
- windowSpy.mockRestore();
+ Object.defineProperty(global, "window", {
+ value: originalWindow,
+ writable: true,
+ });
  });
 
  it("should return true when document create is available", () => {
- windowSpy.mockImplementation(() => ({
- document: {
- createElement: () => {},
+ Object.defineProperty(global, "window", {
+ value: {
+ document: {
+ createElement: () => {},
+ },
  },
- }));
+ writable: true,
+ });
  expect(isDomAvailable()).toEqual(true);
  });
 
  it("should return false with window not available", () => {
- windowSpy.mockImplementation(() => undefined);
  expect(isDomAvailable()).toEqual(false);
  });
 
  it("should return false with document create not available", () => {
- windowSpy.mockImplementation(() => ({
- document: undefined,
- }));
+ Object.defineProperty(global, "window", {
+ value: {
+ document: undefined,
+ },
+ writable: true,
+ });
  expect(isDomAvailable()).toEqual(false);
  });
  });