---
title: "Discussion on \"The Day a Unit Test Saved My Bookcase From Being Shelf-less\" | Hashnode"
description: "Discussion on \"The Day a Unit Test Saved My Bookcase From Being Shelf-less\". I used to think unit tests were one of those “nice in theory” things. Like flossing, or reading documentation before coding.\nThen I wrote a unit test in Bibby and it immediately caught a real bug — the kind of bug that would’ve quietly lived in produ..."
url: "https://hashnode.com/posts/the-day-a-unit-test-saved-my-bookcase-from-being-shelf-less/69753bfd1c55b7a8f4ef3b26"
---

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# [The Day a Unit Test Saved My Bookcase From Being Shelf-less](https://buildingbibby.hashnode.dev/the-day-a-unit-test-saved-my-bookcase-from-being-shelf-less?utm_source=hashnode&utm_medium=feed)

I used to think unit tests were one of those “nice in theory” things. Like flossing, or reading documentation before coding. Then I wrote a unit test in Bibby and it immediately caught a real bug — the kind of bug that would’ve quietly lived in produ...

Jan 24 · 5 min read · buildingbibby.hashnode.dev  
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-   [#junit](https://hashnode.com/tag/junit)
-   [#testing](https://hashnode.com/tag/testing)

## Written by

[Leo D. Penrose](https://hashnode.com/@ldpenrose)

@ldpenrose

  
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