Unit tests code coverage improvement

[whynowy]

Summary

Higher test coverage is one of the metrics that could help improve the code quality, our ultimate goal is to improve code coverage to 85%.

• [ ] pkg/shared
• [ ] pkg/reconciler
• [ ] pkg/sideinputs
• [ ] pkg/sources
• [ ] pkg/sinks
• [ ] server
• [ ] webhook
• [x] serving
• [ ] ...

Use Cases

When would you use this?

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Message from the maintainers:

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