Answer-first summary for fast verification
Answer: Create both unit tests for individual components and integration tests for the end-to-end pipeline.
To ensure the reliability and accuracy of a data pipeline, it is important to create both unit tests for individual components and integration tests for the end-to-end pipeline. Unit tests help identify issues in specific components, while integration tests ensure that the components work together correctly. This comprehensive testing approach helps catch and fix issues early in the development process, reducing the risk of errors in production.
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You are developing a data pipeline for a social media platform that needs to analyze user engagement in real-time. The pipeline processes data from user interactions, such as likes, comments, and shares. How would you create tests for the data pipeline to ensure its reliability and accuracy?
A
Create unit tests for individual components of the pipeline, but do not test the end-to-end pipeline.
B
Create integration tests that test the pipeline from end to end, but do not test individual components in isolation.
C
Create both unit tests for individual components and integration tests for the end-to-end pipeline.
D
Rely on manual testing and user feedback to identify issues in the pipeline.
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