astral-sh/uv

Add test coverage for `uv python` using proxy to serve dummy distributions

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#5939 opened on Aug 8, 2024

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 (1 comment) (1 reaction) (0 assignees)Rust (84,934 stars) (3,111 forks)batch import
help wantedtesting

Description

Actually installing distributions is too expensive for unit tests, but now that we have #5719 we can host dummy distributions (i.e. only with necessary stub files) in a proxy and write unit tests for uv python install and friends.

Contributor guide

Tech stack
rust
Domain
testingcli
Issue type
test
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Rust testing basicsKnowledge of issue #5719Understanding of uv's test infrastructure
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
The issue suggests using the proxy from issue #5719 to serve dummy distributions. First, understand the proxy's implementation from that PR. Then explore existing test patterns for `uv python` commands in the `crates/uv/tests/` directory. Write test cases that start the proxy, redirect `uv` to use it, and then run `uv python install` and related commands. The tests should validate that the correct distributions are fetched without actual network calls.