Zanie Blue
248d6f89ef
The snapshot filtering situation has gotten way out of hand, with each
test hand-rolling it's own filters on top of copied cruft from previous
tests.
I've attempted to address this holistically:
- `TestContext.filters()` has everything you should need
- This was introduced a while ago, but needed a few more filters for it
to be generalized everywhere
- Using `INSTA_FILTERS` is **not recommended** unless you do not want
the context filters
- It is okay to extend these filters for things unrelated to paths
- If you have to write a custom path filter, please highlight it in
review so we can address it in the common module
- `TestContext.site_packages()` gives cross-platform access to the
site-packages directory
- Do not manually construct the path to site-packages from the venv
- Do not turn off tests on Windows because you manually constructed a
Unix path to site-packages
- `TestContext.workspace_root` gives access to uv's repository directory
- Use this for installing from `scripts/packages/`
- If you need coverage for relative paths, copy the test package into
the `temp_dir` don't change the working directory of the test fixture
There is additional work that can be done here, such as:
- Auditing and removing additional uses of `INSTA_FILTERS`
- Updating manual construction of `Command` instances to use a utility
- The `venv` tests are particularly frightening in their lack of a test
context and could use some love
- Improving the developer experience i.e. apply context filters to
snapshots by default
112 lines
3.2 KiB
Plaintext
112 lines
3.2 KiB
Plaintext
//! DO NOT EDIT
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//!
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//! Generated with {{generated_with}}
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//! Scenarios from <{{generated_from}}>
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//!
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#![cfg(all(feature = "python", feature = "pypi"))]
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use std::env;
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use std::process::Command;
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use anyhow::Result;
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use assert_cmd::assert::OutputAssertExt;
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use assert_fs::fixture::{FileWriteStr, PathChild};
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use predicates::prelude::predicate;
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use common::{create_bin_with_executables, get_bin, uv_snapshot, TestContext, INSTA_FILTERS};
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mod common;
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/// Provision python binaries and return a `pip compile` command with options shared across all scenarios.
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fn command(context: &TestContext, python_versions: &[&str]) -> Command {
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let bin = create_bin_with_executables(&context.temp_dir, python_versions)
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.expect("Failed to create bin dir");
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let mut command = Command::new(get_bin());
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command
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.arg("pip")
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.arg("compile")
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.arg("requirements.in")
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.arg("--index-url")
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.arg("{{index_url}}")
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.arg("--find-links")
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.arg("{{vendor_links}}")
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.arg("--cache-dir")
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.arg(context.cache_dir.path())
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.env("VIRTUAL_ENV", context.venv.as_os_str())
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.env("UV_NO_WRAP", "1")
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.env("UV_TEST_PYTHON_PATH", bin)
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.current_dir(&context.temp_dir);
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if cfg!(all(windows, debug_assertions)) {
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// TODO(konstin): Reduce stack usage in debug mode enough that the tests pass with the
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// default windows stack of 1MB
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command.env("UV_STACK_SIZE", (8 * 1024 * 1024).to_string());
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}
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command
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}
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{{#scenarios}}
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{{#description_lines}}
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/// {{.}}
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{{/description_lines}}
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///
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/// ```text
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/// {{name}}
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{{#tree}}
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/// {{.}}
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{{/tree}}
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/// ```
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#[test]
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fn {{module_name}}() -> Result<()> {
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let context = TestContext::new("{{environment.python}}");
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let python_versions = &[{{#environment.additional_python}}"{{.}}", {{/environment.additional_python}}];
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// In addition to the standard filters, swap out package names for shorter messages
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let mut filters = context.filters();
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filters.push((r"{{name}}-", "package-"));
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let requirements_in = context.temp_dir.child("requirements.in");
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{{#root.requires}}
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requirements_in.write_str("{{requirement}}")?;
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{{/root.requires}}
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{{#expected.explanation_lines}}
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// {{.}}
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{{/expected.explanation_lines}}
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let output = uv_snapshot!(filters, command(&context, python_versions)
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{{#resolver_options.prereleases}}
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.arg("--prerelease=allow")
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{{/resolver_options.prereleases}}
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{{#resolver_options.no_build}}
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.arg("--only-binary")
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.arg("{{.}}")
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{{/resolver_options.no_build}}
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{{#resolver_options.no_binary}}
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.arg("--no-binary")
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.arg("{{.}}")
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{{/resolver_options.no_binary}}
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{{#resolver_options.python}}
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.arg("--python-version={{.}}")
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{{/resolver_options.python}}, @r###"<snapshot>
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"###
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);
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output
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.assert()
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{{#expected.satisfiable}}
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.success()
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{{#expected.packages}}
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.stdout(predicate::str::contains("{{name}}=={{version}}"))
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{{/expected.packages}}
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{{/expected.satisfiable}}
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{{^expected.satisfiable}}
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.failure()
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{{/expected.satisfiable}}
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;
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Ok(())
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}
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{{/scenarios}}
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