12/17/2023 0 Comments Jest mock websocket![]() ![]() Usability testing: WebSocket applications should be usable and intuitive.Testing ensures that cross-connections are properly configured and secured. Cross-Origin Resource Sharing (CORS) test: WebSocket connections can be subject to CORS restrictions, especially when connecting to different domains.Testing ensures that data is sent and received correctly and there is no transmission loss or corruption. Data Integrity: WebSocket applications often send sensitive data.Testing failure scenarios ensures that the application can continue functioning in the event of a server failure. Load balancing and failover testing: WebSocket applications can be deployed across multiple servers or data centres for load balancing and high availability in production.Testing these scenarios helps ensure that the application remains stable and responsive. Error Handling: WebSocket applications must gracefully handle errors and edge cases such as disconnection, timeout, and server errors.Testing across multiple browsers and devices helps ensure that your WebSocket application runs smoothly for all users. Compatibility testing: WebSocket is a relatively new technology, and different browsers and platforms may implement it differently.Proper testing can help identify and mitigate these vulnerabilities. Security testing: WebSocket applications can be vulnerable to threats like data injection, DoS attacks and unauthorized access.Testing their performance under load helps identify bottlenecks, optimize resource usage, and ensure the application scales according to user requirements. Performance testing: WebSocket applications often need to handle multiple simultaneous connections and messages.Ensuring the application works properly is critical to providing a positive user experience. Functional Validation: WebSocket applications are used for real-time communication, such as chat applications, online games, trading platforms and more.Verify that the message is displayed in the chat history.Ĭy.get('.chat-history').contains('Hello, world!') ![]() Here is an example of a unit test for a NestJS WebSocket gateway method: import ') This allows you to test the gateway method without connecting to the WebSocket server. To test the NestJS WebSocket gateway method, you can use a mocking library like Jest to mock the underlying WebSocket connection. For NestJS WebSocket applications, this means testing individual gateway methods and handlers. Unit testing is the simplest type of testing and involves testing individual units of code separately. Unit testing is the simplest type of testing and involves testing individual code units separately. This blog post provides a comprehensive guide on testing NestJS WebSocket applications using different testing techniques, such as unit testing, integration testing, and end-to-end testing. ServerMessage.WebSockets are a powerful tool for building real-time applications but can be difficult to test. ![]()
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