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Code Quote by Steve McConnell

“It's hard enough to find an error in your code when you're looking for it; it's even harder when you've assumed your code is error-free.” quote by Steve McConnell
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“It's hard enough to find an error in your code when you're looking for it; it's even harder when you've assumed your code is error-free.”

Steve McConnell

About This Quote

Source Book: Code Complete, 2nd Edition, 2004

Assuming code works without testing leads to missed bugs; thorough verification is essential.

In simple terms: Assuming code is flawless hides errors.

Key Takeaway

Test actively, avoid assumptions.

Themes

software quality testing mindset

Mood

cautious analytical

Type

practical educational

When to use this quote

  • code reviews
  • unit testing
  • continuous integration
  • pair programming

Key Concepts

debugging cognitive bias verification

Questions to Reflect On

  • How do you ensure your tests cover edge cases?
  • What habits prevent overconfidence in code?
A Different Perspective

Even with testing, hidden defects may persist if tests are inadequate.

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