38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
use rustbot::json::Json;
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#[test]
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fn parses_object_and_navigates() {
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let j = Json::parse(r#"{"a":"x","b":{"c":42}}"#).unwrap();
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assert_eq!(j.get("a").and_then(Json::as_str), Some("x"));
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assert_eq!(
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j.get("b").and_then(|v| v.get("c")).and_then(Json::as_f64),
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Some(42.0)
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);
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assert!(j.get("missing").is_none());
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}
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#[test]
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fn parses_nested_arrays() {
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let j = Json::parse(r#"["q",["t1","t2"],[""],["u1"]]"#).unwrap();
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assert_eq!(j.idx(0).and_then(Json::as_str), Some("q"));
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assert_eq!(
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j.idx(1).and_then(|v| v.idx(1)).and_then(Json::as_str),
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Some("t2")
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);
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}
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#[test]
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fn parses_scalars_and_escapes() {
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assert_eq!(Json::parse("true"), Some(Json::Bool(true)));
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assert_eq!(Json::parse("null"), Some(Json::Null));
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assert_eq!(Json::parse("-3.5e2").and_then(|j| j.as_f64()), Some(-350.0));
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let s = Json::parse(r#""a\"bé""#).unwrap();
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assert_eq!(s.as_str(), Some("a\"bé"));
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}
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#[test]
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fn rejects_garbage() {
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assert!(Json::parse("{oops").is_none());
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assert!(Json::parse("").is_none());
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assert!(Json::parse("[1,2").is_none());
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}
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