rust-clippy/tests/ui/regex.rs

82 lines
2.6 KiB
Rust

#![allow(unused, clippy::needless_borrow)]
#![warn(clippy::invalid_regex, clippy::trivial_regex)]
extern crate regex;
use regex::bytes::{Regex as BRegex, RegexBuilder as BRegexBuilder, RegexSet as BRegexSet};
use regex::{Regex, RegexBuilder, RegexSet};
const OPENING_PAREN: &str = "(";
const NOT_A_REAL_REGEX: &str = "foobar";
fn syntax_error() {
let pipe_in_wrong_position = Regex::new("|");
let pipe_in_wrong_position_builder = RegexBuilder::new("|");
let wrong_char_ranice = Regex::new("[z-a]");
let some_unicode = Regex::new("[é-è]");
let some_regex = Regex::new(OPENING_PAREN);
let binary_pipe_in_wrong_position = BRegex::new("|");
let some_binary_regex = BRegex::new(OPENING_PAREN);
let some_binary_regex_builder = BRegexBuilder::new(OPENING_PAREN);
let closing_paren = ")";
let not_linted = Regex::new(closing_paren);
let set = RegexSet::new(&[r"[a-z]+@[a-z]+\.(com|org|net)", r"[a-z]+\.(com|org|net)"]);
let bset = BRegexSet::new(&[
r"[a-z]+@[a-z]+\.(com|org|net)",
r"[a-z]+\.(com|org|net)",
r".", // regression test
]);
let set_error = RegexSet::new(&[OPENING_PAREN, r"[a-z]+\.(com|org|net)"]);
let bset_error = BRegexSet::new(&[OPENING_PAREN, r"[a-z]+\.(com|org|net)"]);
let raw_string_error = Regex::new(r"[...\/...]");
let raw_string_error = Regex::new(r#"[...\/...]"#);
}
fn trivial_regex() {
let trivial_eq = Regex::new("^foobar$");
let trivial_eq_builder = RegexBuilder::new("^foobar$");
let trivial_starts_with = Regex::new("^foobar");
let trivial_ends_with = Regex::new("foobar$");
let trivial_contains = Regex::new("foobar");
let trivial_contains = Regex::new(NOT_A_REAL_REGEX);
let trivial_backslash = Regex::new("a\\.b");
// unlikely corner cases
let trivial_empty = Regex::new("");
let trivial_empty = Regex::new("^");
let trivial_empty = Regex::new("^$");
let binary_trivial_empty = BRegex::new("^$");
// non-trivial regexes
let non_trivial_dot = Regex::new("a.b");
let non_trivial_dot_builder = RegexBuilder::new("a.b");
let non_trivial_eq = Regex::new("^foo|bar$");
let non_trivial_starts_with = Regex::new("^foo|bar");
let non_trivial_ends_with = Regex::new("^foo|bar");
let non_trivial_ends_with = Regex::new("foo|bar");
let non_trivial_binary = BRegex::new("foo|bar");
let non_trivial_binary_builder = BRegexBuilder::new("foo|bar");
// #6005: unicode classes in bytes::Regex
let a_byte_of_unicode = BRegex::new(r"\p{C}");
}
fn main() {
syntax_error();
trivial_regex();
}