datajudge
SS-Unit
| datajudge | SS-Unit | |
|---|---|---|
| 1 | 1 | |
| 38 | 8 | |
| - | - | |
| 8.1 | 10.0 | |
| 29 days ago | about 4 years ago | |
| Python | TSQL | |
| BSD 3-clause "New" or "Revised" License | MIT License |
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datajudge
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Ask HN: How do you test SQL?
https://github.com/QuantCo/datajudge
We've also written a blog post trying to illustrate a use case:
SS-Unit
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Ask HN: How do you test SQL?
Back in the mid-noughties I decided to see if I could write SQL in a test-first manner (i.e. TDD). This resulted in me writing a 100% T-SQL based unit testing framework for SQL Server [1] which we then used for the SQL back-end at an investment bank.
On the back on that professional use I wrote a blog post [2] explaining why you might choose to go down this route as it wasn't the way database was developed way back then (SQL wasn't developed in the same way as the other front-end and back-end code).
A few years later I gave a short 20-minute talk (videoed) to show what writing SQL using TDD looked like for me. It's hard to show all the kinds of tests we wrote in practice at the bank but the talk is intended to show how rapid the feedback loop can be using a standard DB query tool and two code windows - production code and tests.
Be kind, it was a long time ago and I'm sure the state of the art has improved a lot in the intervening years :o).
Chris Oldwood
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[1] SQL Server Unit: https://github.com/chrisoldwood/SS-Unit
[2] You Write Your SQL Unit Tests in SQL?: https://chrisoldwood.blogspot.com/2011/04/you-write-your-sql...
[3] Test-Driven SQL: https://www.youtube.com/watch?v=5-MWYKLM3r0
What are some alternatives?
pg_temp - create a temporary, disposable, userland pg database
dbt-unit-testing - This dbt package contains macros to support unit testing that can be (re)used across dbt projects.
spark-style-guide - Spark style guide
squire
fugue - A unified interface for distributed computing. Fugue executes SQL, Python, Pandas, and Polars code on Spark, Dask and Ray without any rewrites.
integresql - IntegreSQL manages isolated PostgreSQL databases for your integration tests.
sqlx - 🧰 The Rust SQL Toolkit. An async, pure Rust SQL crate featuring compile-time checked queries without a DSL. Supports PostgreSQL, MySQL, and SQLite.
Flyway - Flyway by Redgate • Database Migrations Made Easy.
testcontainers-dotnet - A library to support tests with throwaway instances of Docker containers for all compatible .NET Standard versions.
graphjin - GraphJin - Build NodeJS / GO APIs in 5 minutes not weeks