https://github.com/seanmcp/testing-library-v-cypress

🐙 🆚 🌴 Comparing Testing Library and Cypress for UI component testing
https://github.com/seanmcp/testing-library-v-cypress

cypress testing-library

Last synced: 21 days ago
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🐙 🆚 🌴 Comparing Testing Library and Cypress for UI component testing

• Host: GitHub
• URL: https://github.com/seanmcp/testing-library-v-cypress
• Owner: SeanMcP
• Created: 2023-10-13T00:45:12.000Z (about 1 year ago)
• Default Branch: master
• Last Pushed: 2023-10-13T01:11:47.000Z (about 1 year ago)
• Last Synced: 2024-10-15T03:37:29.654Z (about 1 month ago)
• Topics: cypress, testing-library
• Language: JavaScript
• Homepage: https://seanmcp.github.io/testing-library-v-cypress/
• Size: 103 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Testing Library v Cypress

At [LibertyJS 2023](https://libertyjs.com/), a speaker recommended using

[Cypress' component tests](https://docs.cypress.io/guides/core-concepts/testing-types#What-is-Component-Testing)

for UI testing because of it's focus on user interactions. I suspected that

Cypress would be significantly slower than

[Testing Library](https://testing-library.com/) (which also focuses on user

interactions), so I created this repo to test my hypothesis.

## Results

### Round 1

One test with a cold start:

| Run  | Testing Library | Cypress     |

| ---- | --------------- | ----------- |

| 1    | 3.628s          | 19.320s     |

| 2    | 2.720s          | 21.163s     |

| 3    | 3.242s          | 15.742s     |

| 4    | 3.145s          | 16.087s     |

| 5    | 3.044s          | 15.348s     |

| Mean | **3.156s**      | **17.532s** |

### Round 2

Five identical tests with a cold start:

| Run  | Testing Library | Cypress     |

| ---- | --------------- | ----------- |

| 1    | 9.286s          | 47.714s     |

| 2    | 8.184s          | 42.946s     |

| 3    | 6.722s          | 40.665s     |

| 4    | 7.871s          | 40.463s     |

| 5    | 6.619s          | 40.794s     |

| Mean | **7.736s**      | **42.516s** |

## Conclusion

There is definite utility in using Cypress to write component tests, but the

data indicate that it would be an significantly less performant option when

compared with Testing Library.