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@ 9e303d5ff83e
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Location: Regular-Expresso/tests/test_regexp.rs - annotation
9e303d5ff83e
3.9 KiB
application/rls-services+xml
removed Plus, made it an alias of the Alternative op
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use regexp::ParsingError;
#[test]
fn test_eval_basic_nfa() {
let r = Regexp::new(&String::from("abc")).unwrap();
assert!(r.eval(String::from("abc")));
assert!(!r.eval(String::from("ab")));
assert!(!r.eval(String::from("abcd")));
}
#[test]
fn test_eval_basic_dfa() {
let r = Regexp::new(&String::from("abc")).unwrap().determinize();
assert!(r.eval(String::from("abc")));
assert!(!r.eval(String::from("ab")));
assert!(!r.eval(String::from("abcd")));
}
#[test]
fn test_eval_empty_nfa() {
assert!(Regexp::new(&String::from("a*")).unwrap().eval(String::from("")));
assert!(Regexp::new(&String::from("")).unwrap().eval(String::from("")));
assert!(!Regexp::new(&String::from("")).unwrap().eval(String::from("a")));
assert!(!Regexp::new(&String::from("a")).unwrap().eval(String::from("")));
}
#[test]
fn test_eval_empty_dfa() {
assert!(Regexp::new(&String::from("a*")).unwrap().determinize().eval(String::from("")));
assert!(Regexp::new(&String::from("")).unwrap().determinize().eval(String::from("")));
assert!(!Regexp::new(&String::from("")).unwrap().determinize().eval(String::from("a")));
}
#[test]
fn test_eval_asterisk_nfa() {
let r = Regexp::new(&String::from("a*b*")).unwrap();
assert!(r.eval(String::from("a")));
assert!(r.eval(String::from("ab")));
assert!(r.eval(String::from("aabb")));
assert!(!r.eval(String::from("abab")));
}
#[test]
fn test_eval_asterisk_dfa() {
let r = Regexp::new(&String::from("a*b*")).unwrap().determinize();
assert!(r.eval(String::from("a")));
assert!(r.eval(String::from("ab")));
assert!(r.eval(String::from("aabb")));
assert!(!r.eval(String::from("abab")));
}
#[test]
fn test_eval_alternative_nfa() {
let r = Regexp::new(&String::from("a|b|c")).unwrap();
assert!(r.eval(String::from("a")));
assert!(r.eval(String::from("b")));
assert!(r.eval(String::from("c")));
assert!(!r.eval(String::from("")));
assert!(!r.eval(String::from("ab")));
}
#[test]
fn test_eval_alternative_dfa() {
let r = Regexp::new(&String::from("a|b|c")).unwrap().determinize();
assert!(r.eval(String::from("a")));
assert!(r.eval(String::from("b")));
assert!(r.eval(String::from("c")));
assert!(!r.eval(String::from("")));
assert!(!r.eval(String::from("ab")));
}
#[test]
fn test_eval_lambda_nfa() {
let r = Regexp::new(&String::from("a_")).unwrap();
assert!(r.eval(String::from("a")));
assert!(!r.eval(String::from("")));
assert!(!r.eval(String::from("ab")));
let r = Regexp::new(&String::from("a|_")).unwrap();
assert!(r.eval(String::from("a")));
assert!(r.eval(String::from("")));
assert!(!r.eval(String::from("b")));
}
#[test]
fn test_eval_lambda_dfa() {
let r = Regexp::new(&String::from("a_")).unwrap().determinize();
assert!(r.eval(String::from("a")));
assert!(!r.eval(String::from("")));
assert!(!r.eval(String::from("ab")));
let r = Regexp::new(&String::from("a|_")).unwrap().determinize();
assert!(r.eval(String::from("a")));
assert!(r.eval(String::from("")));
assert!(!r.eval(String::from("b")));
}
#[test]
fn test_invalid_asterisk() {
let x = Regexp::new(&String::from("*"));
assert!(matches!(x, Err(ParsingError::Asterisk{s: _, pos: 0})));
}
#[test]
fn test_invalid_closing_parenthesis() {
let x = Regexp::new(&String::from("(a"));
assert!(matches!(x, Err(ParsingError::ClosingParenthesis{s: _, pos: 0})));
}
#[test]
fn test_invalid_opening_parenthesis() {
let x = Regexp::new(&String::from("a)"));
assert!(matches!(x, Err(ParsingError::OpeningParenthesis{s: _, pos: 1})));
}
#[test]
fn test_invalid_empty_variant_start() {
let x = Regexp::new(&String::from("a(|b)"));
assert!(matches!(x, Err(ParsingError::EmptyAlternativeVariant)));
}
#[test]
fn test_invalid_empty_variant_end() {
let x = Regexp::new(&String::from("a|"));
assert!(matches!(x, Err(ParsingError::EmptyAlternativeVariant)));
}
#[test]
fn test_invalid_empty_variant_middle() {
let x = Regexp::new(&String::from("a||b"));
assert!(matches!(x, Err(ParsingError::EmptyAlternativeVariant)));
}
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