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Failure Quote by Paul Dix

“Many programmers would prefer to mock in their client library specs, but doing so could result in the service and client passing all specs with hidden failures.” quote by Paul Dix
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““Many programmers would prefer to mock in their client library specs, but doing so could result in the service and client passing all specs with hidden failures.””

Paul Dix

About This Quote

Source Conference Talk: Software Testing Summit, 2019

Mocking in client specs may hide failures, leading to false confidence in system reliability.

In simple terms: Mocks can mask real bugs.

Key Takeaway

Avoid over‑mocking in tests.

Themes

software testing reliability mocking quality assurance

Mood

technical cautious

Type

practical advisory

When to use this quote

  • Continuous integration pipelines
  • API development
  • microservices architecture

Key Concepts

test isolation integration testing risk management

Questions to Reflect On

  • When is mocking appropriate?
  • How to detect hidden failures?
A Different Perspective

Mocking can be necessary for unit isolation.

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