oliverdavies.uk/source/_daily_emails/2024-04-28.md

---
title: Replicating a bug with a test
date: 2024-04-28
permalink: daily/2024/04/28/replicating-a-bug-with-a-test
tags:
  - software-development
  - automated-testing
cta: ~
snippet: |
  When fixing a bug, do you try to replicate it with a test?
---

When fixing a bug, can you write a new failing test to replicate the bug?

If so, you verify the bug exists, you know when it's fixed (the test passes), and you know you won't introduce the same bug again - otherwise, the new test will fail.
Add daily email for 2024-04-28 2024-04-30 23:32:11 +00:00			`---`
			`title: Replicating a bug with a test`
			`date: 2024-04-28`
Update daily email permalinks This is a follow-up to commit 3be9031de882942f87331f607a2298a6d13f4528 as each daily email has a `permalink` value that overrides the default content type permalink. 2024-05-20 22:58:27 +00:00			`permalink: daily/2024/04/28/replicating-a-bug-with-a-test`
Add daily email for 2024-04-28 2024-04-30 23:32:11 +00:00			`tags:`
Change to two spaces 2024-09-08 22:09:54 +00:00			`- software-development`
			`- automated-testing`
Add daily email for 2024-04-28 2024-04-30 23:32:11 +00:00			`cta: ~`
			`snippet: \|`
Change to two spaces 2024-09-08 22:09:54 +00:00			`When fixing a bug, do you try to replicate it with a test?`
Add daily email for 2024-04-28 2024-04-30 23:32:11 +00:00			`---`

			`When fixing a bug, can you write a new failing test to replicate the bug?`

			`If so, you verify the bug exists, you know when it's fixed (the test passes), and you know you won't introduce the same bug again - otherwise, the new test will fail.`