25 lines
893 B
Markdown
25 lines
893 B
Markdown
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---
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title: Passing tests doesn't mean a working application
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date: 2024-11-03
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permalink: daily/2024/11/03/passing-tests-doesnt-mean-a-working-application
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tags:
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- software-development
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- automated-testing
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- test-driven-development
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cta: d7eol
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snippet: |
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Having a passing test suite doesn't mean your application works.
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---
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Having a passing test suite doesn't mean everything in your application is working.
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It means the functionality you previously tested is working.
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There may be edge cases you haven't covered or whole tests you haven't written yet, which may be working or could be broken.
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If you have tests that were passing that are now failing, you know you've broken something.
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Something that was previously working is broken and shouldn't be deployed.
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That's why having tests is important - they give you the ability to identify and fix regressions before they are released.
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