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|
use ron::{extensions::Extensions, ser::PrettyConfig, Options};
use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize)]
struct Newtype(f64);
#[derive(Serialize, Deserialize)]
struct Struct(Option<u32>, Newtype);
#[test]
fn default_options() {
let ron = Options::default();
let de: Struct = ron.from_str("(Some(42),(4.2))").unwrap();
let ser = ron.to_string(&de).unwrap();
assert_eq!(ser, "(Some(42),(4.2))");
}
#[test]
fn without_any_options() {
let mut ron = Options::default().with_default_extension(Extensions::all());
for extension in Extensions::all().iter() {
ron = ron.without_default_extension(extension);
}
let de: Struct = ron.from_str("(Some(42),(4.2))").unwrap();
let ser = ron.to_string(&de).unwrap();
assert_eq!(ser, "(Some(42),(4.2))");
}
#[test]
fn single_default_extension() {
let ron = Options::default().with_default_extension(Extensions::IMPLICIT_SOME);
let de: Struct = ron.from_str("(42,(4.2))").unwrap();
let ser = ron.to_string(&de).unwrap();
assert_eq!(ser, "(42,(4.2))");
let de: Struct = ron.from_str("#)").unwrap();
let ser = ron.to_string(&de).unwrap();
assert_eq!(ser, "(42,(4.2))");
let de: Struct = ron
.from_str("#![enable(implicit_some)]#")
.unwrap();
let ser = ron.to_string(&de).unwrap();
assert_eq!(ser, "(42,(4.2))");
let de: Struct = ron
.from_str("#![enable(implicit_some)]#")
.unwrap();
let ser = ron
.to_string_pretty(
&de,
PrettyConfig::default().extensions(Extensions::UNWRAP_NEWTYPES),
)
.unwrap();
assert_eq!(ser, "#![enable(unwrap_newtypes)]\n(42, 4.2)");
}
#[cfg(feature = "std")]
#[test]
fn reader_io_error() {
struct Reader<'a> {
buf: &'a [u8],
}
impl<'a> std::io::Read for Reader<'a> {
fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
let written = self.buf.read(buf)?;
if written == 0 {
Err(std::io::Error::new(std::io::ErrorKind::BrokenPipe, "oh no"))
} else {
Ok(written)
}
}
}
assert_eq!(
ron::de::from_reader::<Reader, ()>(Reader { buf: b"" }).unwrap_err(),
ron::error::SpannedError {
code: ron::Error::Io(String::from("oh no")),
span: ron::error::Span {
start: ron::error::Position { line: 1, col: 1 },
end: ron::error::Position { line: 1, col: 1 },
}
}
);
assert_eq!(
ron::de::from_reader::<Reader, ()>(Reader { buf: b"hello" }).unwrap_err(),
ron::error::SpannedError {
code: ron::Error::Io(String::from("oh no")),
span: ron::error::Span {
start: ron::error::Position { line: 1, col: 1 },
end: ron::error::Position { line: 1, col: 6 },
}
}
);
assert_eq!(
ron::de::from_reader::<Reader, ()>(Reader {
buf: b"hello\nmy \xff"
})
.unwrap_err(),
ron::error::SpannedError {
code: ron::Error::Io(String::from("oh no")),
span: ron::error::Span {
start: ron::error::Position { line: 1, col: 1 },
end: ron::error::Position { line: 2, col: 4 },
}
}
);
}
|
