diff options
Diffstat (limited to 'syn/tests/test_lit.rs')
-rw-r--r-- | syn/tests/test_lit.rs | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/syn/tests/test_lit.rs b/syn/tests/test_lit.rs deleted file mode 100644 index 0b300c4..0000000 --- a/syn/tests/test_lit.rs +++ /dev/null @@ -1,184 +0,0 @@ -mod features; - -use proc_macro2::{TokenStream, TokenTree}; -use quote::ToTokens; -use std::str::FromStr; -use syn::Lit; - -fn lit(s: &str) -> Lit { - match TokenStream::from_str(s) - .unwrap() - .into_iter() - .next() - .unwrap() - { - TokenTree::Literal(lit) => Lit::new(lit), - _ => panic!(), - } -} - -#[test] -fn strings() { - fn test_string(s: &str, value: &str) { - match lit(s) { - Lit::Str(lit) => { - assert_eq!(lit.value(), value); - let again = lit.into_token_stream().to_string(); - if again != s { - test_string(&again, value); - } - } - wrong => panic!("{:?}", wrong), - } - } - - test_string("\"a\"", "a"); - test_string("\"\\n\"", "\n"); - test_string("\"\\r\"", "\r"); - test_string("\"\\t\"", "\t"); - test_string("\"🐕\"", "🐕"); // NOTE: This is an emoji - test_string("\"\\\"\"", "\""); - test_string("\"'\"", "'"); - test_string("\"\"", ""); - test_string("\"\\u{1F415}\"", "\u{1F415}"); - test_string( - "\"contains\nnewlines\\\nescaped newlines\"", - "contains\nnewlinesescaped newlines", - ); - test_string("r\"raw\nstring\\\nhere\"", "raw\nstring\\\nhere"); -} - -#[test] -fn byte_strings() { - fn test_byte_string(s: &str, value: &[u8]) { - match lit(s) { - Lit::ByteStr(lit) => { - assert_eq!(lit.value(), value); - let again = lit.into_token_stream().to_string(); - if again != s { - test_byte_string(&again, value); - } - } - wrong => panic!("{:?}", wrong), - } - } - - test_byte_string("b\"a\"", b"a"); - test_byte_string("b\"\\n\"", b"\n"); - test_byte_string("b\"\\r\"", b"\r"); - test_byte_string("b\"\\t\"", b"\t"); - test_byte_string("b\"\\\"\"", b"\""); - test_byte_string("b\"'\"", b"'"); - test_byte_string("b\"\"", b""); - test_byte_string( - "b\"contains\nnewlines\\\nescaped newlines\"", - b"contains\nnewlinesescaped newlines", - ); - test_byte_string("br\"raw\nstring\\\nhere\"", b"raw\nstring\\\nhere"); -} - -#[test] -fn bytes() { - fn test_byte(s: &str, value: u8) { - match lit(s) { - Lit::Byte(lit) => { - assert_eq!(lit.value(), value); - let again = lit.into_token_stream().to_string(); - assert_eq!(again, s); - } - wrong => panic!("{:?}", wrong), - } - } - - test_byte("b'a'", b'a'); - test_byte("b'\\n'", b'\n'); - test_byte("b'\\r'", b'\r'); - test_byte("b'\\t'", b'\t'); - test_byte("b'\\''", b'\''); - test_byte("b'\"'", b'"'); -} - -#[test] -fn chars() { - fn test_char(s: &str, value: char) { - match lit(s) { - Lit::Char(lit) => { - assert_eq!(lit.value(), value); - let again = lit.into_token_stream().to_string(); - if again != s { - test_char(&again, value); - } - } - wrong => panic!("{:?}", wrong), - } - } - - test_char("'a'", 'a'); - test_char("'\\n'", '\n'); - test_char("'\\r'", '\r'); - test_char("'\\t'", '\t'); - test_char("'🐕'", '🐕'); // NOTE: This is an emoji - test_char("'\\''", '\''); - test_char("'\"'", '"'); - test_char("'\\u{1F415}'", '\u{1F415}'); -} - -#[test] -fn ints() { - fn test_int(s: &str, value: u64, suffix: &str) { - match lit(s) { - Lit::Int(lit) => { - assert_eq!(lit.base10_digits().parse::<u64>().unwrap(), value); - assert_eq!(lit.suffix(), suffix); - let again = lit.into_token_stream().to_string(); - if again != s { - test_int(&again, value, suffix); - } - } - wrong => panic!("{:?}", wrong), - } - } - - test_int("5", 5, ""); - test_int("5u32", 5, "u32"); - test_int("5_0", 50, ""); - test_int("5_____0_____", 50, ""); - test_int("0x7f", 127, ""); - test_int("0x7F", 127, ""); - test_int("0b1001", 9, ""); - test_int("0o73", 59, ""); - test_int("0x7Fu8", 127, "u8"); - test_int("0b1001i8", 9, "i8"); - test_int("0o73u32", 59, "u32"); - test_int("0x__7___f_", 127, ""); - test_int("0x__7___F_", 127, ""); - test_int("0b_1_0__01", 9, ""); - test_int("0o_7__3", 59, ""); - test_int("0x_7F__u8", 127, "u8"); - test_int("0b__10__0_1i8", 9, "i8"); - test_int("0o__7__________________3u32", 59, "u32"); -} - -#[test] -fn floats() { - #[cfg_attr(feature = "cargo-clippy", allow(float_cmp))] - fn test_float(s: &str, value: f64, suffix: &str) { - match lit(s) { - Lit::Float(lit) => { - assert_eq!(lit.base10_digits().parse::<f64>().unwrap(), value); - assert_eq!(lit.suffix(), suffix); - let again = lit.into_token_stream().to_string(); - if again != s { - test_float(&again, value, suffix); - } - } - wrong => panic!("{:?}", wrong), - } - } - - test_float("5.5", 5.5, ""); - test_float("5.5E12", 5.5e12, ""); - test_float("5.5e12", 5.5e12, ""); - test_float("1.0__3e-12", 1.03e-12, ""); - test_float("1.03e+12", 1.03e12, ""); -} |