diff options
Diffstat (limited to 'tests/test_lit.rs')
| -rw-r--r-- | tests/test_lit.rs | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/tests/test_lit.rs b/tests/test_lit.rs index e995f228..099daf10 100644 --- a/tests/test_lit.rs +++ b/tests/test_lit.rs @@ -5,7 +5,7 @@ use proc_macro2::{Delimiter, Group, Literal, Span, TokenStream, TokenTree}; use quote::ToTokens; use std::iter::FromIterator; use std::str::FromStr; -use syn::{Lit, LitFloat, LitInt}; +use syn::{Lit, LitFloat, LitInt, LitStr}; fn lit(s: &str) -> Lit { match TokenStream::from_str(s) @@ -43,6 +43,7 @@ fn strings() { test_string("\"'\"", "'"); test_string("\"\"", ""); test_string("\"\\u{1F415}\"", "\u{1F415}"); + test_string("\"\\u{1_2__3_}\"", "\u{123}"); test_string( "\"contains\nnewlines\\\nescaped newlines\"", "contains\nnewlinesescaped newlines", @@ -151,6 +152,9 @@ fn ints() { test_int("5", 5, ""); test_int("5u32", 5, "u32"); + test_int("0E", 0, "E"); + test_int("0ECMA", 0, "ECMA"); + test_int("0o0A", 0, "A"); test_int("5_0", 50, ""); test_int("5_____0_____", 50, ""); test_int("0x7f", 127, ""); @@ -167,6 +171,7 @@ fn ints() { test_int("0x_7F__u8", 127, "u8"); test_int("0b__10__0_1i8", 9, "i8"); test_int("0o__7__________________3u32", 59, "u32"); + test_int("0e1\u{5c5}", 0, "e1\u{5c5}"); } #[test] @@ -192,6 +197,8 @@ fn floats() { test_float("1.0__3e-12", 1.03e-12, ""); test_float("1.03e+12", 1.03e12, ""); test_float("9e99e99", 9e99, "e99"); + test_float("1e_0", 1.0, ""); + test_float("0.0ECMA", 0.0, "ECMA"); } #[test] @@ -208,6 +215,12 @@ fn negative() { } #[test] +fn negative_overflow() { + assert!(syn::parse_str::<LitFloat>("-1.0e99f64").is_ok()); + assert!(syn::parse_str::<LitFloat>("-1.0e999f64").is_err()); +} + +#[test] fn suffix() { fn get_suffix(token: &str) -> String { let lit = syn::parse_str::<Lit>(token).unwrap(); @@ -247,3 +260,12 @@ fn test_deep_group_empty() { snapshot!(tokens as Lit, @r#""hi""# ); } + +#[test] +fn test_error() { + let err = syn::parse_str::<LitStr>("...").unwrap_err(); + assert_eq!("expected string literal", err.to_string()); + + let err = syn::parse_str::<LitStr>("5").unwrap_err(); + assert_eq!("expected string literal", err.to_string()); +} |