29 lines
1.1 KiB
Markdown
29 lines
1.1 KiB
Markdown
---
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title: >
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Adding snapshot tests to Build Configs
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pubDate: 2023-12-16
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permalink: >-
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archive/2023/12/16/adding-snapshot-tests-to-build-configs
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tags:
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- software-development
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- php
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- symfony
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- build-configs
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- automated-testing
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- test-driven-development
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---
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This week, I've started to add snapshot tests to the [Build Configs project][build configs].
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I had unit tests for the DTO validation to ensure the configuration was correct, but the main thing I wanted to test was I could run it for a given configuration file and get the expected files and contents to be generated.
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With snapshot tests, I generate the files for each configuration and compare them to a set that I know to be correct.
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If the files match, the tests pass, but, if they don't - such as a bug in the code, the tests will fail.
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This is the level that I want to be testing this project and that provides the most value.
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If a snapshot test fails, I can try to replicate the underlying issue in a unit test whilst also fixing the snapshot test.
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[build configs]: https://www.oliverdavies.dev/build-configs
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