ruff/crates/ruff_python_parser/src/parser/tests.rs
Brent Westbrook 97d0659ce3
Pass ParserOptions to the parser (#16220)
## Summary

This is part of the preparation for detecting syntax errors in the
parser from https://github.com/astral-sh/ruff/pull/16090/. As suggested
in [this
comment](https://github.com/astral-sh/ruff/pull/16090/#discussion_r1953084509),
I started working on a `ParseOptions` struct that could be stored in the
parser. For this initial refactor, I only made it hold the existing
`Mode` option, but for syntax errors, we will also need it to have a
`PythonVersion`. For that use case, I'm picturing something like a
`ParseOptions::with_python_version` method, so you can extend the
current calls to something like

```rust
ParseOptions::from(mode).with_python_version(settings.target_version)
```

But I thought it was worth adding `ParseOptions` alone without changing
any other behavior first.

Most of the diff is just updating call sites taking `Mode` to take
`ParseOptions::from(Mode)` or those taking `PySourceType`s to take
`ParseOptions::from(PySourceType)`. The interesting changes are in the
new `parser/options.rs` file and smaller parts of `parser/mod.rs` and
`ruff_python_parser/src/lib.rs`.

## Test Plan

Existing tests, this should not change any behavior.
2025-02-19 10:50:50 -05:00

136 lines
2.4 KiB
Rust

use crate::{parse, parse_expression, parse_module, Mode, ParseOptions};
#[test]
fn test_modes() {
let source = "a[0][1][2][3][4]";
assert!(parse(source, ParseOptions::from(Mode::Expression)).is_ok());
assert!(parse(source, ParseOptions::from(Mode::Module)).is_ok());
}
#[test]
fn test_expr_mode_invalid_syntax1() {
let source = "first second";
let error = parse_expression(source).unwrap_err();
insta::assert_debug_snapshot!(error);
}
#[test]
fn test_expr_mode_invalid_syntax2() {
let source = r"first
second
";
let error = parse_expression(source).unwrap_err();
insta::assert_debug_snapshot!(error);
}
#[test]
fn test_expr_mode_invalid_syntax3() {
let source = r"first
second
third
";
let error = parse_expression(source).unwrap_err();
insta::assert_debug_snapshot!(error);
}
#[test]
fn test_expr_mode_valid_syntax() {
let source = "first
";
let parsed = parse_expression(source).unwrap();
insta::assert_debug_snapshot!(parsed.expr());
}
#[test]
fn test_unicode_aliases() {
// https://github.com/RustPython/RustPython/issues/4566
let source = r#"x = "\N{BACKSPACE}another cool trick""#;
let suite = parse_module(source).unwrap().into_suite();
insta::assert_debug_snapshot!(suite);
}
#[test]
fn test_ipython_escape_commands() {
let parsed = parse(
r"
# Normal Python code
(
a
%
b
)
# Dynamic object info
??a.foo
?a.foo
?a.foo?
??a.foo()??
# Line magic
%timeit a = b
%timeit foo(b) % 3
%alias showPath pwd && ls -a
%timeit a =\
foo(b); b = 2
%matplotlib --inline
%matplotlib \
--inline
# System shell access
!pwd && ls -a | sed 's/^/\ /'
!pwd \
&& ls -a | sed 's/^/\\ /'
!!cd /Users/foo/Library/Application\ Support/
# Let's add some Python code to make sure that earlier escapes were handled
# correctly and that we didn't consume any of the following code as a result
# of the escapes.
def foo():
return (
a
!=
b
)
# Transforms into `foo(..)`
/foo 1 2
;foo 1 2
,foo 1 2
# Indented escape commands
for a in range(5):
!ls
p1 = !pwd
p2: str = !pwd
foo = %foo \
bar
% foo
foo = %foo # comment
# Help end line magics
foo?
foo.bar??
foo.bar.baz?
foo[0]??
foo[0][1]?
foo.bar[0].baz[1]??
foo.bar[0].baz[2].egg??
"
.trim(),
ParseOptions::from(Mode::Ipython),
)
.unwrap();
insta::assert_debug_snapshot!(parsed.syntax());
}