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State of JavaScript 2023

Testing

Tools for testing your code

Testing Tools Ratios Over Time

Jest
Mocha
Storybook
Cypress
Puppeteer
Testing Library
Playwright
WebdriverIO
Vitest
Selenium
TestCafe
Mock Service Worker

Mode:

View:

0%
20%
40%
60%
80%
100%
2016
2017
2018
2019
2020
2021
2022
2023
0%
20%
40%
60%
80%
100%

Testing Tools Experience & Sentiment

Group by:

Sort by:

1

74.3%
21.1%
4.6%
19,682
2

52%
34.4%
13.5%
19,762
3

47.1%
40%
12.8%
19,713
4

45.4%
41.4%
13.1%
19,675
5

40.1%
25.7%
34.3%
19,636

Experience

  • Used it: Respondents who have used an item.
  • Heard of it: Respondents who have heard about an item, but haven't used it.
  • Never heard of it: Respondents who have never heard about an item.

Sentiment

  • Positive: Respondents who are interested in learning more about a technology; or are willing to use it again.
  • Neutral: Responents who did not indicate any sentiment about a technology.
  • Negative: Respondents who are not interested in learning more about a technology; or have used it and had a negative experience.
“Used” average:35%
“Positive” average:44%
“Negative” average:24%
💡
You can click on any technology name to get extra details and a more in-depth look at its related data.

Other Testing Tools

0%
8%
16%
24%
32%
40%
1

76
2

62
3

35
4

24
5

23
6

22
7

22
8

16
9

12
10

11
11

Other Answers

157
0%
8%
16%
24%
32%
40%
% of question respondents
392
2%
We asked members of the JavaScript community to share their “pick of the year”

My 2023 Pick: UnJS

The UnJS ecosystem is like a developer's toybox. From ofetch and consola to citty and nitro, there is likely something there for your next big project.
We asked members of the JavaScript community to share their “pick of the year”

quarkstuff

Web & Game dev nerd

Testing Tools Happiness

0
1
2
3
4
2016
2017
2018
2019
2020
2021
2022
2023
0
1
2
3
4
Average
18,915
80%
2.4
2
On a scale of 0 (very unhappy) to 4 (very happy), how happy are you with the current state of testing tools?

Testing Tools Pain Points

0%
16%
31%
47%
63%
78%
1

Mocking

2

Configuration

3

Performance

4

5

ESM & CJS

6

Excessive complexity

7

E2E testing

8

Flakiness

9

TypeScript support

10

Choice overload

0%
16%
31%
47%
63%
78%
% of question respondents
2,188
9%
What pain points have you encountered when using testing tools?
Freeform

Recommended Resources

Enterprise UI Development: Testing & Code Quality
Steve Kinney
Temporal

Enterprise UI Development: Testing & Code Quality

Learn unit testing with Vitest, continuous integration via GitHub Actions, component and accessibility testing with Ax, mocking techniques, and code standard enforcement using ESLint and Husky & Lint-Staged.
Web App Testing & Tools
Miško Hevery
Qwik Creator (Previously Angular)

Web App Testing & Tools

Dive into testing with Miško Hevery, covering unit and end-to-end testing, refactoring for testability, and using tools like Vitest and Playwright.
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