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use ron::{
error::{Position, Span, SpannedError},
Error,
};
use serde::Deserialize;
#[derive(Debug, Deserialize, PartialEq)]
struct BytesStruct {
small: Vec<u8>,
#[serde(with = "serde_bytes")]
large: Vec<u8>,
}
#[test]
fn rusty_byte_string() {
assert_eq!(
Ok(BytesStruct {
small: vec![1, 2],
large: vec![1, 2, 0, 4]
}),
ron::from_str("BytesStruct( small:[1, 2], large: b\"\\x01\\u{2}\\0\\x04\" )"),
);
ron::from_str::<String>("\"Hello \\x01 \\u{2}!\"").unwrap(),
"Hello \x01 \u{2}!",
&*ron::from_str::<bytes::Bytes>("b\"Hello \\x01 \\u{2}!\"").unwrap(),
b"Hello \x01 \x02!",
rusty_byte_string_roundtrip(b"hello", "b\"hello\"", "b\"hello\"");
rusty_byte_string_roundtrip(b"\"", "b\"\\\"\"", "br#\"\"\"#");
rusty_byte_string_roundtrip(b"\"#", "b\"\\\"#\"", "br##\"\"#\"##");
rusty_byte_string_roundtrip(b"\n", "b\"\\n\"", "b\"\n\"");
ron::from_str::<bytes::Bytes>("b\"\\xf\"").unwrap_err(),
SpannedError {
code: Error::InvalidEscape("Non-hex digit found"),
span: Span {
start: Position { line: 1, col: 3 },
end: Position { line: 1, col: 7 },
},
ron::from_str::<bytes::Bytes>("b\"\\xf🦀\"").unwrap_err(),
let err = ron::from_str::<bytes::Bytes>("br#q\"").unwrap_err();
err,
code: Error::ExpectedByteString,
end: Position { line: 1, col: 4 },
assert_eq!(format!("{}", err.code), "Expected byte string",);
ron::from_str::<bytes::Bytes>("br#\"q").unwrap_err(),
code: Error::ExpectedStringEnd,
start: Position { line: 1, col: 4 },
end: Position { line: 1, col: 5 },
ron::from_str::<String>("r#q\"").unwrap_err(),
code: Error::ExpectedString,
start: Position { line: 1, col: 2 },
end: Position { line: 1, col: 3 },
ron::from_str::<String>("r#\"q").unwrap_err(),
fn rusty_byte_string_roundtrip(bytes: &[u8], ron: &str, ron_raw: &str) {
let ser_list = ron::to_string(bytes).unwrap();
let de_list: Vec<u8> = ron::from_str(&ser_list).unwrap();
assert_eq!(de_list, bytes);
let ser = ron::to_string(&bytes::Bytes::copy_from_slice(bytes)).unwrap();
assert_eq!(ser, ron);
let ser_non_raw = ron::ser::to_string_pretty(
&bytes::Bytes::copy_from_slice(bytes),
ron::ser::PrettyConfig::default(),
)
.unwrap();
assert_eq!(ser_non_raw, ron);
let ser_raw = ron::ser::to_string_pretty(
ron::ser::PrettyConfig::default().escape_strings(false),
assert_eq!(ser_raw, ron_raw);
let de: bytes::Bytes = ron::from_str(&ser).unwrap();
assert_eq!(de, bytes);
let de_raw: bytes::Bytes = ron::from_str(&ser_raw).unwrap();
assert_eq!(de_raw, bytes);
fn fuzzer_failures() {
ron::to_string(&bytes::Bytes::copy_from_slice(&[
123, 0, 0, 0, 0, 214, 214, 214, 214, 214
]))
.unwrap(),
r#"b"{\x00\x00\x00\x00\xd6\xd6\xd6\xd6\xd6""#
// Need to fall back to escaping so no invalid UTF-8 is produced
ron::ser::to_string_pretty(
&bytes::Bytes::copy_from_slice(&[123, 0, 0, 0, 0, 214, 214, 214, 214, 214]),
ron::ser::PrettyConfig::default().escape_strings(false)
ron::to_string(&bytes::Bytes::copy_from_slice(&[123, 0, 0, 0, 0])).unwrap(),
r#"b"{\x00\x00\x00\x00""#
&bytes::Bytes::copy_from_slice(&[123, 0, 0, 0, 0]),
"b\"{\x00\x00\x00\x00\""
// `br#` should be parsed as the start of a byte string, not the identifier `br` and a `#`
ron::from_str(r##"br#"""#"##),
Ok(ron::Value::Bytes(vec![34]))
ron::from_str(r##"{"error": br#"""#}"##),
Ok(ron::Value::Map(
[(
ron::Value::String(String::from("error")),
ron::Value::Bytes(vec![34])
)]
.into_iter()
.collect()
))
ron::from_str(
r##"#![enable(unwrap_newtypes)]
#![enable(unwrap_variant_newtypes)]
Some({"error": br#"""#})
"##
),
Ok(ron::Value::Option(Some(Box::new(ron::Value::Map(
)))))
// `br"` should be parsed as the start of a byte string, not the identifier `br` and a `"`
assert_eq!(ron::from_str(r#"br"""#), Ok(ron::Value::Bytes(vec![])));
ron::from_str(r#"{"error": br""}"#),
ron::Value::Bytes(vec![])
r#"#![enable(unwrap_newtypes)]
Some({"error": br""})
"#
// Test that the struct type check for newtype variant unwrapping does
// not enter inside a byte string to find a bad comment start
ron::from_str::<Option<ron::Value>>(
r#"#![enable(unwrap_variant_newtypes)] Some(b"\xff/not a comment")"#
Some(ron::Value::Bytes(b"\xff/not a comment".to_vec()))
// `b'` should be parsed as the start of a byte literal, not the identifier `b` and a `'`
ron::from_str(r"b'\xff'"),
Ok(ron::Value::Number(ron::value::Number::U8(b'\xff')))
// `b`, `br`, `bq`, and `brq` should all be parsed as identifiers
for id in ["b", "br", "bq", "brq"] {
assert_eq!(ron::from_str(id), Ok(ron::Value::Unit));
fn serialize_backslash_byte_string() {
check_roundtrip('\\', r"'\\'", r"'\\'");
check_roundtrip(
bytes::Bytes::copy_from_slice(b"\\"),
r#"b"\\""#,
"br#\"\\\"#",
fn check_roundtrip<
T: PartialEq + core::fmt::Debug + serde::Serialize + serde::de::DeserializeOwned,
>(
val: T,
cmp: &str,
cmp_raw: &str,
) {
let ron = ron::to_string(&val).unwrap();
assert_eq!(ron, cmp);
let ron_escaped =
ron::ser::to_string_pretty(&val, ron::ser::PrettyConfig::default().escape_strings(true))
assert_eq!(ron_escaped, cmp);
let ron_raw = ron::ser::to_string_pretty(
&val,
assert_eq!(ron_raw, cmp_raw);
let de = ron::from_str::<T>(&ron).unwrap();
assert_eq!(de, val);
let de_raw = ron::from_str::<T>(&ron_raw).unwrap();
assert_eq!(de_raw, val);
fn test_weird_escapes() {
ron::from_str::<String>(r#""\u{1F980}""#),
Ok(String::from("\u{1F980}"))
ron::from_str::<bytes::Bytes>(r#"b"\xf0\x9f\xa6\x80""#),
Ok(bytes::Bytes::copy_from_slice("\u{1F980}".as_bytes()))
ron::from_str::<String>(r#""\xf0\x9f\xa6\x80""#),
ron::from_str::<String>(r#""\xf0""#),
Err(SpannedError {
code: Error::InvalidEscape("Not a valid byte-escaped Unicode character"),
end: Position { line: 1, col: 6 }
})
ron::from_str::<String>(r#""\xf0\x9f""#),
start: Position { line: 1, col: 6 },
end: Position { line: 1, col: 10 }
ron::from_str::<String>(r#""\xf0\x9f\x40""#),
start: Position { line: 1, col: 10 },
end: Position { line: 1, col: 14 }
ron::from_str::<String>(r#""\xf0\x9f\xa6""#),
ron::from_str::<String>(r#""\xff\xff\xff\xff""#),
start: Position { line: 1, col: 14 },
end: Position { line: 1, col: 18 }
assert_eq!(ron::from_str::<char>(r"'\u{1F980}'"), Ok('\u{1F980}'));
ron::from_str::<char>(r"'\xf0\x9f\xa6\x80'"),
start: Position { line: 1, col: 1 },
fn byte_literal() {
ron::from_str("b'\0'"),
Ok(ron::Value::Number(ron::value::Number::U8(0)))
ron::from_str("b'\\0'"),
for b in 0..=255_u8 {
let default = std::ascii::escape_default(b)
.map(char::from)
.collect::<String>();
let lower = format!(r"\x{:02x}", b);
let upper = format!(r"\x{:02X}", b);
ron::from_str(&format!("b'{}'", default)),
Ok(ron::Value::Number(ron::value::Number::U8(b)))
ron::from_str(&format!("b'{}'", lower)),
ron::from_str(&format!("b'{}'", upper)),
ron::from_str::<u8>(r#"b'\u{0}'"#),
code: Error::InvalidEscape("Unexpected Unicode escape in byte literal"),
start: Position { line: 1, col: 7 },
end: Position { line: 1, col: 8 },
let err = ron::from_str::<u8>(r#"b'🦀'"#).unwrap_err();
code: Error::ExpectedByteLiteral,
assert_eq!(format!("{}", err.code), "Expected byte literal");
ron::from_str::<u8>(r#"b'qq'"#).unwrap_err(),
ron::from_str::<i8>(r#"b'9'"#),
code: Error::InvalidValueForType {
expected: String::from("an 8-bit signed integer"),
found: String::from(r#"b'9'"#)
fn invalid_identifier() {
#[allow(dead_code)]
#[derive(Debug, Deserialize)] // GRCOV_EXCL_LINE
struct Test {
a: i32,
for id in ["b\"", "b'", "br#", "br\"", "r\"", "r#\"", "r##"] {
ron::from_str::<Test>(&format!("({}: 42)", id)).unwrap_err(),
code: Error::ExpectedIdentifier,
end: Position { line: 1, col: 2 },