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