35 lines
1.1 KiB
Rust
35 lines
1.1 KiB
Rust
/* lexer/tests/numbers.rs
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* Eryn Wells <eryn@erynwells.me>
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*/
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//! Tests for lexing numbers.
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extern crate sibillexer;
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use sibillexer::{Lexer, Lex, Token};
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#[test]
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fn ints_simple() {
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let mut lex = Lexer::new("23 42 0".chars());
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assert_eq!(lex.next(), Some(Ok(Lex::new(Token::Num(23), "23", 0, 0))));
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assert_eq!(lex.next(), Some(Ok(Lex::new(Token::Num(42), "42", 0, 3))));
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assert_eq!(lex.next(), Some(Ok(Lex::new(Token::Num(0), "0", 0, 6))));
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assert_eq!(lex.next(), None);
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}
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#[test]
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fn ints_negative() {
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let mut lex = Lexer::new("-56".chars());
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assert_eq!(lex.next(), Some(Ok(Lex::new(Token::Num(-56), "-56", 0, 0))));
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assert_eq!(lex.next(), None);
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}
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#[test]
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fn ints_alternative_bases() {
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let mut lex = Lexer::new("#x2A #b11001 #o56 #d78".chars());
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assert_eq!(lex.next(), Some(Ok(Lex::new(Token::Num(0x2A), "#x2A", 0, 0))));
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assert_eq!(lex.next(), Some(Ok(Lex::new(Token::Num(0b11001), "#b11001", 0, 5))));
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assert_eq!(lex.next(), Some(Ok(Lex::new(Token::Num(0o56), "#o56", 0, 13))));
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assert_eq!(lex.next(), Some(Ok(Lex::new(Token::Num(78), "#d78", 0, 18))));
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assert_eq!(lex.next(), None);
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}
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