d2caaf2ab3
* Make `YamlLoader` generic on the type of the `Node`. This is required because deeper node need to have annotations too. * Add a `LoadableYamlNode` trait, required for YAML node types to be loaded by `YamlLoader`. It contains methods required by `YamlLoader` during loading. * Implement `LoadableYamlNode` for `Yaml`. * Take `load_from_str` out of `YamlLoader` for parsing non-annotated nodes. This avoids every user to specify the generics in `YamlLoader::<Yaml>::load_from_str`.
77 lines
1.8 KiB
Rust
77 lines
1.8 KiB
Rust
use saphyr::{load_from_str, Yaml, YamlEmitter};
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fn roundtrip(original: &Yaml) {
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let mut emitted = String::new();
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YamlEmitter::new(&mut emitted).dump(original).unwrap();
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let documents = load_from_str(&emitted).unwrap();
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println!("emitted {emitted}");
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assert_eq!(documents.len(), 1);
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assert_eq!(documents[0], *original);
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}
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fn double_roundtrip(original: &str) {
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let parsed = load_from_str(original).unwrap();
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let mut serialized = String::new();
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YamlEmitter::new(&mut serialized).dump(&parsed[0]).unwrap();
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let reparsed = load_from_str(&serialized).unwrap();
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assert_eq!(parsed, reparsed);
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}
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#[test]
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fn test_escape_character() {
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let y = Yaml::String("\x1b".to_owned());
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roundtrip(&y);
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}
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#[test]
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fn test_colon_in_string() {
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let y = Yaml::String("x: %".to_owned());
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roundtrip(&y);
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}
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#[test]
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fn test_numberlike_strings() {
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let docs = [
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r#"x: "1234""#,
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r#"x: "01234""#,
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r#""1234""#,
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r#""01234""#,
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r#"" 01234""#,
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r#""0x1234""#,
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r#"" 0x1234""#,
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];
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for doc in &docs {
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roundtrip(&Yaml::String((*doc).to_string()));
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double_roundtrip(doc);
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}
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}
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/// Example from <https://github.com/chyh1990/yaml-rust/issues/133>
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#[test]
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fn test_issue133() {
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let doc = load_from_str("\"0x123\"").unwrap().pop().unwrap();
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assert_eq!(doc, Yaml::String("0x123".to_string()));
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let mut out_str = String::new();
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YamlEmitter::new(&mut out_str).dump(&doc).unwrap();
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let doc2 = load_from_str(&out_str).unwrap().pop().unwrap();
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assert_eq!(doc, doc2); // This failed because the type has changed to a number now
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}
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#[test]
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fn test_newline() {
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let y = Yaml::Array(vec![Yaml::String("\n".to_owned())]);
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roundtrip(&y);
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}
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#[test]
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fn test_crlf() {
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let y = Yaml::Array(vec![Yaml::String("\r\n".to_owned())]);
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roundtrip(&y);
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}
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