mirror of
https://github.com/astral-sh/uv
synced 2026-06-21 13:47:25 +00:00
Zanie Blue
b4d32e4356
This makes it easier for us to add resolver scenarios by 1. Rewriting the scenario package generation in Rust 2. Serving scenario packages from memory in a wiremock index 3. Rewriting the scenario test case generation in Rust 4. Dropping all dependencies on packse / the packse index --------- Co-authored-by: Codex <noreply@openai.com>
49 lines
1.7 KiB
TOML
49 lines
1.7 KiB
TOML
name = "fork-overlapping-markers-basic"
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description = '''
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This scenario tests a very basic case of overlapping markers. Namely,
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it emulates a common pattern in the ecosystem where marker expressions
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are used to progressively increase the version constraints of a package
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as the Python version increases.
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In this case, there is actually a split occurring between
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`python_version < '3.13'` and the other marker expressions, so this
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isn't just a scenario with overlapping but non-disjoint markers.
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In particular, this serves as a regression test. uv used to create a
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lock file with a dependency on `a` with the following markers:
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python_version < '3.13' or python_version >= '3.14'
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But this implies that `a` won't be installed for Python 3.13, which is
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clearly wrong.
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The issue was that uv was intersecting *all* marker expressions. So
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that `a>=1.1.0` and `a>=1.2.0` fork was getting `python_version >=
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'3.13' and python_version >= '3.14'`, which, of course, simplifies
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to `python_version >= '3.14'`. But this is wrong! It should be
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`python_version >= '3.13' or python_version >= '3.14'`, which of course
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simplifies to `python_version >= '3.13'`. And thus, the resulting forks
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are not just disjoint but complete in this case.
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Since there are no other constraints on `a`, this causes uv to select
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`1.2.0` unconditionally. (The marker expressions get normalized out
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entirely.)
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'''
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[resolver_options]
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universal = true
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[expected]
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satisfiable = true
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[root]
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requires = [
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"a>=1.0.0 ; python_version < '3.13'",
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"a>=1.1.0 ; python_version >= '3.13'",
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"a>=1.2.0 ; python_version >= '3.14'",
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]
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[packages.a.versions."1.0.0"]
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[packages.a.versions."1.1.0"]
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[packages.a.versions."1.2.0"]
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