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World Congress 2023 • Oct 23, 2023

Advanced Cypress: custom assertions and tasks

Luca Micieli

Break out of Cypress browser isolation using Node.js tasks. Discover how custom, type-safe Chai assertions can make your test suite resilient to routine UI and translation changes.

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#1 about 2 min

Cypress internal architecture and test execution constraints

How running tests within the browser process prevents direct native access to external databases or the file system.

#2 about 1 min

Creating configuration tasks executing inside Node processes

Bypass browser limitations by defining remote procedure calls executed directly within the Cypress Node configuration context.

#3 about 3 min

Database seeding and handling complex external authentication flows

Implement configuration tasks to initialize database state or handle separate window flows like OAuth interactions.

#4 about 2 min

Extending the Chai library with custom Cypress assertions

Improve test legibility by creating reusable Chai assertions connected directly to internal application logic.

#5 about 3 min

TypeScript integration and testing dynamic translated text keys

Handle internationalization localization checks safely and implement robust static typing using module declaration merging.

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