mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 13:04:42 +00:00
60b71f56e7
This is no longer used by the compiler itself, and removing this support opens the door to massively simplifying the Decodable/Decoder API by dropping the self-describing deserialization support (necessary for JSON).
979 lines
33 KiB
Rust
979 lines
33 KiB
Rust
#![allow(rustc::internal)]
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use json::ErrorCode::*;
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use json::Json::*;
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use json::JsonEvent::*;
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use json::ParserError::*;
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use json::{from_str, Encoder, EncoderError, Json, JsonEvent, Parser, StackElement};
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use rustc_macros::Encodable;
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use rustc_serialize::json;
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use rustc_serialize::Encodable;
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use std::collections::BTreeMap;
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use std::io::prelude::*;
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use std::string;
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use Animal::*;
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#[derive(Eq, PartialEq, Debug)]
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struct OptionData {
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opt: Option<usize>,
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}
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#[derive(PartialEq, Encodable, Debug)]
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enum Animal {
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Dog,
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Frog(string::String, isize),
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}
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#[derive(PartialEq, Encodable, Debug)]
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struct Inner {
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a: (),
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b: usize,
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c: Vec<string::String>,
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}
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#[derive(PartialEq, Encodable, Debug)]
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struct Outer {
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inner: Vec<Inner>,
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}
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fn mk_object(items: &[(string::String, Json)]) -> Json {
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let mut d = BTreeMap::new();
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for item in items {
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match *item {
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(ref key, ref value) => {
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d.insert((*key).clone(), (*value).clone());
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}
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}
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}
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Object(d)
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}
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#[test]
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fn test_from_str_trait() {
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let s = "null";
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assert!(s.parse::<Json>().unwrap() == s.parse().unwrap());
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}
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#[test]
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fn test_write_null() {
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assert_eq!(Null.to_string(), "null");
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assert_eq!(Null.pretty().to_string(), "null");
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}
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#[test]
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fn test_write_i64() {
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assert_eq!(U64(0).to_string(), "0");
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assert_eq!(U64(0).pretty().to_string(), "0");
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assert_eq!(U64(1234).to_string(), "1234");
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assert_eq!(U64(1234).pretty().to_string(), "1234");
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assert_eq!(I64(-5678).to_string(), "-5678");
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assert_eq!(I64(-5678).pretty().to_string(), "-5678");
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assert_eq!(U64(7650007200025252000).to_string(), "7650007200025252000");
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assert_eq!(U64(7650007200025252000).pretty().to_string(), "7650007200025252000");
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}
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#[test]
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fn test_write_f64() {
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assert_eq!(F64(3.0).to_string(), "3.0");
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assert_eq!(F64(3.0).pretty().to_string(), "3.0");
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assert_eq!(F64(3.1).to_string(), "3.1");
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assert_eq!(F64(3.1).pretty().to_string(), "3.1");
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assert_eq!(F64(-1.5).to_string(), "-1.5");
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assert_eq!(F64(-1.5).pretty().to_string(), "-1.5");
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assert_eq!(F64(0.5).to_string(), "0.5");
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assert_eq!(F64(0.5).pretty().to_string(), "0.5");
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assert_eq!(F64(f64::NAN).to_string(), "null");
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assert_eq!(F64(f64::NAN).pretty().to_string(), "null");
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assert_eq!(F64(f64::INFINITY).to_string(), "null");
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assert_eq!(F64(f64::INFINITY).pretty().to_string(), "null");
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assert_eq!(F64(f64::NEG_INFINITY).to_string(), "null");
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assert_eq!(F64(f64::NEG_INFINITY).pretty().to_string(), "null");
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}
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#[test]
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fn test_write_str() {
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assert_eq!(String("".to_string()).to_string(), "\"\"");
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assert_eq!(String("".to_string()).pretty().to_string(), "\"\"");
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assert_eq!(String("homura".to_string()).to_string(), "\"homura\"");
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assert_eq!(String("madoka".to_string()).pretty().to_string(), "\"madoka\"");
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}
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#[test]
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fn test_write_bool() {
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assert_eq!(Boolean(true).to_string(), "true");
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assert_eq!(Boolean(true).pretty().to_string(), "true");
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assert_eq!(Boolean(false).to_string(), "false");
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assert_eq!(Boolean(false).pretty().to_string(), "false");
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}
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#[test]
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fn test_write_array() {
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assert_eq!(Array(vec![]).to_string(), "[]");
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assert_eq!(Array(vec![]).pretty().to_string(), "[]");
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assert_eq!(Array(vec![Boolean(true)]).to_string(), "[true]");
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assert_eq!(
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Array(vec![Boolean(true)]).pretty().to_string(),
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"\
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[\n \
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true\n\
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]"
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);
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let long_test_array =
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Array(vec![Boolean(false), Null, Array(vec![String("foo\nbar".to_string()), F64(3.5)])]);
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assert_eq!(long_test_array.to_string(), "[false,null,[\"foo\\nbar\",3.5]]");
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assert_eq!(
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long_test_array.pretty().to_string(),
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"\
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[\n \
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false,\n \
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null,\n \
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[\n \
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\"foo\\nbar\",\n \
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3.5\n \
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]\n\
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]"
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);
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}
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#[test]
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fn test_write_object() {
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assert_eq!(mk_object(&[]).to_string(), "{}");
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assert_eq!(mk_object(&[]).pretty().to_string(), "{}");
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assert_eq!(mk_object(&[("a".to_string(), Boolean(true))]).to_string(), "{\"a\":true}");
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assert_eq!(
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mk_object(&[("a".to_string(), Boolean(true))]).pretty().to_string(),
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"\
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{\n \
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\"a\": true\n\
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}"
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);
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let complex_obj = mk_object(&[(
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"b".to_string(),
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Array(vec![
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mk_object(&[("c".to_string(), String("\x0c\r".to_string()))]),
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mk_object(&[("d".to_string(), String("".to_string()))]),
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]),
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)]);
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assert_eq!(
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complex_obj.to_string(),
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"{\
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\"b\":[\
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{\"c\":\"\\f\\r\"},\
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{\"d\":\"\"}\
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]\
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}"
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);
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assert_eq!(
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complex_obj.pretty().to_string(),
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"\
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{\n \
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\"b\": [\n \
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{\n \
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\"c\": \"\\f\\r\"\n \
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},\n \
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{\n \
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\"d\": \"\"\n \
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}\n \
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]\n\
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}"
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);
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let a = mk_object(&[
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("a".to_string(), Boolean(true)),
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(
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"b".to_string(),
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Array(vec![
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mk_object(&[("c".to_string(), String("\x0c\r".to_string()))]),
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mk_object(&[("d".to_string(), String("".to_string()))]),
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]),
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),
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]);
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// We can't compare the strings directly because the object fields be
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// printed in a different order.
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assert_eq!(a.clone(), a.to_string().parse().unwrap());
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assert_eq!(a.clone(), a.pretty().to_string().parse().unwrap());
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}
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#[test]
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fn test_write_enum() {
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let animal = Dog;
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assert_eq!(json::as_json(&animal).to_string(), "\"Dog\"");
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assert_eq!(json::as_pretty_json(&animal).to_string(), "\"Dog\"");
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let animal = Frog("Henry".to_string(), 349);
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assert_eq!(
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json::as_json(&animal).to_string(),
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"{\"variant\":\"Frog\",\"fields\":[\"Henry\",349]}"
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);
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assert_eq!(
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json::as_pretty_json(&animal).to_string(),
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"{\n \
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\"variant\": \"Frog\",\n \
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\"fields\": [\n \
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\"Henry\",\n \
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349\n \
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]\n\
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}"
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);
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}
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macro_rules! check_encoder_for_simple {
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($value:expr, $expected:expr) => {{
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let s = json::as_json(&$value).to_string();
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assert_eq!(s, $expected);
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let s = json::as_pretty_json(&$value).to_string();
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assert_eq!(s, $expected);
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}};
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}
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#[test]
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fn test_write_some() {
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check_encoder_for_simple!(Some("jodhpurs".to_string()), "\"jodhpurs\"");
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}
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#[test]
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fn test_write_none() {
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check_encoder_for_simple!(None::<string::String>, "null");
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}
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#[test]
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fn test_write_char() {
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check_encoder_for_simple!('a', "\"a\"");
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check_encoder_for_simple!('\t', "\"\\t\"");
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check_encoder_for_simple!('\u{0000}', "\"\\u0000\"");
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check_encoder_for_simple!('\u{001b}', "\"\\u001b\"");
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check_encoder_for_simple!('\u{007f}', "\"\\u007f\"");
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check_encoder_for_simple!('\u{00a0}', "\"\u{00a0}\"");
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check_encoder_for_simple!('\u{abcd}', "\"\u{abcd}\"");
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check_encoder_for_simple!('\u{10ffff}', "\"\u{10ffff}\"");
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}
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#[test]
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fn test_trailing_characters() {
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assert_eq!(from_str("nulla"), Err(SyntaxError(TrailingCharacters, 1, 5)));
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assert_eq!(from_str("truea"), Err(SyntaxError(TrailingCharacters, 1, 5)));
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assert_eq!(from_str("falsea"), Err(SyntaxError(TrailingCharacters, 1, 6)));
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assert_eq!(from_str("1a"), Err(SyntaxError(TrailingCharacters, 1, 2)));
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assert_eq!(from_str("[]a"), Err(SyntaxError(TrailingCharacters, 1, 3)));
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assert_eq!(from_str("{}a"), Err(SyntaxError(TrailingCharacters, 1, 3)));
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}
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#[test]
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fn test_read_identifiers() {
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assert_eq!(from_str("n"), Err(SyntaxError(InvalidSyntax, 1, 2)));
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assert_eq!(from_str("nul"), Err(SyntaxError(InvalidSyntax, 1, 4)));
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assert_eq!(from_str("t"), Err(SyntaxError(InvalidSyntax, 1, 2)));
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assert_eq!(from_str("truz"), Err(SyntaxError(InvalidSyntax, 1, 4)));
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assert_eq!(from_str("f"), Err(SyntaxError(InvalidSyntax, 1, 2)));
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assert_eq!(from_str("faz"), Err(SyntaxError(InvalidSyntax, 1, 3)));
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assert_eq!(from_str("null"), Ok(Null));
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assert_eq!(from_str("true"), Ok(Boolean(true)));
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assert_eq!(from_str("false"), Ok(Boolean(false)));
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assert_eq!(from_str(" null "), Ok(Null));
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assert_eq!(from_str(" true "), Ok(Boolean(true)));
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assert_eq!(from_str(" false "), Ok(Boolean(false)));
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}
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#[test]
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fn test_read_number() {
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assert_eq!(from_str("+"), Err(SyntaxError(InvalidSyntax, 1, 1)));
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assert_eq!(from_str("."), Err(SyntaxError(InvalidSyntax, 1, 1)));
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assert_eq!(from_str("NaN"), Err(SyntaxError(InvalidSyntax, 1, 1)));
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assert_eq!(from_str("-"), Err(SyntaxError(InvalidNumber, 1, 2)));
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assert_eq!(from_str("00"), Err(SyntaxError(InvalidNumber, 1, 2)));
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assert_eq!(from_str("1."), Err(SyntaxError(InvalidNumber, 1, 3)));
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assert_eq!(from_str("1e"), Err(SyntaxError(InvalidNumber, 1, 3)));
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assert_eq!(from_str("1e+"), Err(SyntaxError(InvalidNumber, 1, 4)));
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assert_eq!(from_str("18446744073709551616"), Err(SyntaxError(InvalidNumber, 1, 20)));
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assert_eq!(from_str("-9223372036854775809"), Err(SyntaxError(InvalidNumber, 1, 21)));
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assert_eq!(from_str("3"), Ok(U64(3)));
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assert_eq!(from_str("3.1"), Ok(F64(3.1)));
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assert_eq!(from_str("-1.2"), Ok(F64(-1.2)));
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assert_eq!(from_str("0.4"), Ok(F64(0.4)));
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assert_eq!(from_str("0.4e5"), Ok(F64(0.4e5)));
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assert_eq!(from_str("0.4e+15"), Ok(F64(0.4e15)));
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assert_eq!(from_str("0.4e-01"), Ok(F64(0.4e-01)));
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assert_eq!(from_str(" 3 "), Ok(U64(3)));
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assert_eq!(from_str("-9223372036854775808"), Ok(I64(i64::MIN)));
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assert_eq!(from_str("9223372036854775807"), Ok(U64(i64::MAX as u64)));
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assert_eq!(from_str("18446744073709551615"), Ok(U64(u64::MAX)));
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}
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#[test]
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fn test_read_str() {
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assert_eq!(from_str("\""), Err(SyntaxError(EOFWhileParsingString, 1, 2)));
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assert_eq!(from_str("\"lol"), Err(SyntaxError(EOFWhileParsingString, 1, 5)));
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assert_eq!(from_str("\"\""), Ok(String("".to_string())));
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assert_eq!(from_str("\"foo\""), Ok(String("foo".to_string())));
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assert_eq!(from_str("\"\\\"\""), Ok(String("\"".to_string())));
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assert_eq!(from_str("\"\\b\""), Ok(String("\x08".to_string())));
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assert_eq!(from_str("\"\\n\""), Ok(String("\n".to_string())));
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assert_eq!(from_str("\"\\r\""), Ok(String("\r".to_string())));
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assert_eq!(from_str("\"\\t\""), Ok(String("\t".to_string())));
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assert_eq!(from_str(" \"foo\" "), Ok(String("foo".to_string())));
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assert_eq!(from_str("\"\\u12ab\""), Ok(String("\u{12ab}".to_string())));
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assert_eq!(from_str("\"\\uAB12\""), Ok(String("\u{AB12}".to_string())));
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}
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#[test]
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fn test_read_array() {
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assert_eq!(from_str("["), Err(SyntaxError(EOFWhileParsingValue, 1, 2)));
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assert_eq!(from_str("[1"), Err(SyntaxError(EOFWhileParsingArray, 1, 3)));
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assert_eq!(from_str("[1,"), Err(SyntaxError(EOFWhileParsingValue, 1, 4)));
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assert_eq!(from_str("[1,]"), Err(SyntaxError(InvalidSyntax, 1, 4)));
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assert_eq!(from_str("[6 7]"), Err(SyntaxError(InvalidSyntax, 1, 4)));
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assert_eq!(from_str("[]"), Ok(Array(vec![])));
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assert_eq!(from_str("[ ]"), Ok(Array(vec![])));
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assert_eq!(from_str("[true]"), Ok(Array(vec![Boolean(true)])));
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assert_eq!(from_str("[ false ]"), Ok(Array(vec![Boolean(false)])));
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assert_eq!(from_str("[null]"), Ok(Array(vec![Null])));
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assert_eq!(from_str("[3, 1]"), Ok(Array(vec![U64(3), U64(1)])));
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assert_eq!(from_str("\n[3, 2]\n"), Ok(Array(vec![U64(3), U64(2)])));
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assert_eq!(from_str("[2, [4, 1]]"), Ok(Array(vec![U64(2), Array(vec![U64(4), U64(1)])])));
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}
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#[test]
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fn test_read_object() {
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assert_eq!(from_str("{"), Err(SyntaxError(EOFWhileParsingObject, 1, 2)));
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assert_eq!(from_str("{ "), Err(SyntaxError(EOFWhileParsingObject, 1, 3)));
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assert_eq!(from_str("{1"), Err(SyntaxError(KeyMustBeAString, 1, 2)));
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assert_eq!(from_str("{ \"a\""), Err(SyntaxError(EOFWhileParsingObject, 1, 6)));
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assert_eq!(from_str("{\"a\""), Err(SyntaxError(EOFWhileParsingObject, 1, 5)));
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assert_eq!(from_str("{\"a\" "), Err(SyntaxError(EOFWhileParsingObject, 1, 6)));
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assert_eq!(from_str("{\"a\" 1"), Err(SyntaxError(ExpectedColon, 1, 6)));
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assert_eq!(from_str("{\"a\":"), Err(SyntaxError(EOFWhileParsingValue, 1, 6)));
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assert_eq!(from_str("{\"a\":1"), Err(SyntaxError(EOFWhileParsingObject, 1, 7)));
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assert_eq!(from_str("{\"a\":1 1"), Err(SyntaxError(InvalidSyntax, 1, 8)));
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assert_eq!(from_str("{\"a\":1,"), Err(SyntaxError(EOFWhileParsingObject, 1, 8)));
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assert_eq!(from_str("{}").unwrap(), mk_object(&[]));
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assert_eq!(from_str("{\"a\": 3}").unwrap(), mk_object(&[("a".to_string(), U64(3))]));
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assert_eq!(
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from_str("{ \"a\": null, \"b\" : true }").unwrap(),
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mk_object(&[("a".to_string(), Null), ("b".to_string(), Boolean(true))])
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);
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assert_eq!(
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from_str("\n{ \"a\": null, \"b\" : true }\n").unwrap(),
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mk_object(&[("a".to_string(), Null), ("b".to_string(), Boolean(true))])
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);
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assert_eq!(
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from_str("{\"a\" : 1.0 ,\"b\": [ true ]}").unwrap(),
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mk_object(&[("a".to_string(), F64(1.0)), ("b".to_string(), Array(vec![Boolean(true)]))])
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);
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assert_eq!(
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from_str(
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"{\
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\"a\": 1.0, \
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\"b\": [\
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true,\
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\"foo\\nbar\", \
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{ \"c\": {\"d\": null} } \
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]\
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}"
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)
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.unwrap(),
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mk_object(&[
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("a".to_string(), F64(1.0)),
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(
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"b".to_string(),
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Array(vec![
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Boolean(true),
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String("foo\nbar".to_string()),
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mk_object(&[("c".to_string(), mk_object(&[("d".to_string(), Null)]))])
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])
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)
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])
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);
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}
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#[test]
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fn test_multiline_errors() {
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assert_eq!(from_str("{\n \"foo\":\n \"bar\""), Err(SyntaxError(EOFWhileParsingObject, 3, 8)));
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}
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#[test]
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fn test_find() {
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let json_value = from_str("{\"dog\" : \"cat\"}").unwrap();
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let found_str = json_value.find("dog");
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assert!(found_str.unwrap().as_string().unwrap() == "cat");
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}
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#[test]
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|
fn test_find_path() {
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let json_value = from_str("{\"dog\":{\"cat\": {\"mouse\" : \"cheese\"}}}").unwrap();
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let found_str = json_value.find_path(&["dog", "cat", "mouse"]);
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assert!(found_str.unwrap().as_string().unwrap() == "cheese");
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}
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#[test]
|
|
fn test_search() {
|
|
let json_value = from_str("{\"dog\":{\"cat\": {\"mouse\" : \"cheese\"}}}").unwrap();
|
|
let found_str = json_value.search("mouse").and_then(|j| j.as_string());
|
|
assert!(found_str.unwrap() == "cheese");
|
|
}
|
|
|
|
#[test]
|
|
fn test_index() {
|
|
let json_value = from_str("{\"animals\":[\"dog\",\"cat\",\"mouse\"]}").unwrap();
|
|
let ref array = json_value["animals"];
|
|
assert_eq!(array[0].as_string().unwrap(), "dog");
|
|
assert_eq!(array[1].as_string().unwrap(), "cat");
|
|
assert_eq!(array[2].as_string().unwrap(), "mouse");
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_object() {
|
|
let json_value = from_str("{}").unwrap();
|
|
assert!(json_value.is_object());
|
|
}
|
|
|
|
#[test]
|
|
fn test_as_object() {
|
|
let json_value = from_str("{}").unwrap();
|
|
let json_object = json_value.as_object();
|
|
assert!(json_object.is_some());
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_array() {
|
|
let json_value = from_str("[1, 2, 3]").unwrap();
|
|
assert!(json_value.is_array());
|
|
}
|
|
|
|
#[test]
|
|
fn test_as_array() {
|
|
let json_value = from_str("[1, 2, 3]").unwrap();
|
|
let json_array = json_value.as_array();
|
|
let expected_length = 3;
|
|
assert!(json_array.is_some() && json_array.unwrap().len() == expected_length);
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_string() {
|
|
let json_value = from_str("\"dog\"").unwrap();
|
|
assert!(json_value.is_string());
|
|
}
|
|
|
|
#[test]
|
|
fn test_as_string() {
|
|
let json_value = from_str("\"dog\"").unwrap();
|
|
let json_str = json_value.as_string();
|
|
let expected_str = "dog";
|
|
assert_eq!(json_str, Some(expected_str));
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_number() {
|
|
let json_value = from_str("12").unwrap();
|
|
assert!(json_value.is_number());
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_i64() {
|
|
let json_value = from_str("-12").unwrap();
|
|
assert!(json_value.is_i64());
|
|
|
|
let json_value = from_str("12").unwrap();
|
|
assert!(!json_value.is_i64());
|
|
|
|
let json_value = from_str("12.0").unwrap();
|
|
assert!(!json_value.is_i64());
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_u64() {
|
|
let json_value = from_str("12").unwrap();
|
|
assert!(json_value.is_u64());
|
|
|
|
let json_value = from_str("-12").unwrap();
|
|
assert!(!json_value.is_u64());
|
|
|
|
let json_value = from_str("12.0").unwrap();
|
|
assert!(!json_value.is_u64());
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_f64() {
|
|
let json_value = from_str("12").unwrap();
|
|
assert!(!json_value.is_f64());
|
|
|
|
let json_value = from_str("-12").unwrap();
|
|
assert!(!json_value.is_f64());
|
|
|
|
let json_value = from_str("12.0").unwrap();
|
|
assert!(json_value.is_f64());
|
|
|
|
let json_value = from_str("-12.0").unwrap();
|
|
assert!(json_value.is_f64());
|
|
}
|
|
|
|
#[test]
|
|
fn test_as_i64() {
|
|
let json_value = from_str("-12").unwrap();
|
|
let json_num = json_value.as_i64();
|
|
assert_eq!(json_num, Some(-12));
|
|
}
|
|
|
|
#[test]
|
|
fn test_as_u64() {
|
|
let json_value = from_str("12").unwrap();
|
|
let json_num = json_value.as_u64();
|
|
assert_eq!(json_num, Some(12));
|
|
}
|
|
|
|
#[test]
|
|
fn test_as_f64() {
|
|
let json_value = from_str("12.0").unwrap();
|
|
let json_num = json_value.as_f64();
|
|
assert_eq!(json_num, Some(12f64));
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_boolean() {
|
|
let json_value = from_str("false").unwrap();
|
|
assert!(json_value.is_boolean());
|
|
}
|
|
|
|
#[test]
|
|
fn test_as_boolean() {
|
|
let json_value = from_str("false").unwrap();
|
|
let json_bool = json_value.as_boolean();
|
|
let expected_bool = false;
|
|
assert!(json_bool.is_some() && json_bool.unwrap() == expected_bool);
|
|
}
|
|
|
|
#[test]
|
|
fn test_is_null() {
|
|
let json_value = from_str("null").unwrap();
|
|
assert!(json_value.is_null());
|
|
}
|
|
|
|
#[test]
|
|
fn test_as_null() {
|
|
let json_value = from_str("null").unwrap();
|
|
let json_null = json_value.as_null();
|
|
let expected_null = ();
|
|
assert!(json_null.is_some() && json_null.unwrap() == expected_null);
|
|
}
|
|
|
|
#[test]
|
|
fn test_encode_hashmap_with_numeric_key() {
|
|
use std::collections::HashMap;
|
|
use std::str::from_utf8;
|
|
let mut hm: HashMap<usize, bool> = HashMap::new();
|
|
hm.insert(1, true);
|
|
let mut mem_buf = Vec::new();
|
|
write!(&mut mem_buf, "{}", json::as_pretty_json(&hm)).unwrap();
|
|
let json_str = from_utf8(&mem_buf[..]).unwrap();
|
|
match from_str(json_str) {
|
|
Err(_) => panic!("Unable to parse json_str: {:?}", json_str),
|
|
_ => {} // it parsed and we are good to go
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_prettyencode_hashmap_with_numeric_key() {
|
|
use std::collections::HashMap;
|
|
use std::str::from_utf8;
|
|
let mut hm: HashMap<usize, bool> = HashMap::new();
|
|
hm.insert(1, true);
|
|
let mut mem_buf = Vec::new();
|
|
write!(&mut mem_buf, "{}", json::as_pretty_json(&hm)).unwrap();
|
|
let json_str = from_utf8(&mem_buf[..]).unwrap();
|
|
match from_str(json_str) {
|
|
Err(_) => panic!("Unable to parse json_str: {:?}", json_str),
|
|
_ => {} // it parsed and we are good to go
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_prettyencoder_indent_level_param() {
|
|
use std::collections::BTreeMap;
|
|
use std::str::from_utf8;
|
|
|
|
let mut tree = BTreeMap::new();
|
|
|
|
tree.insert("hello".to_string(), String("guten tag".to_string()));
|
|
tree.insert("goodbye".to_string(), String("sayonara".to_string()));
|
|
|
|
let json = Array(
|
|
// The following layout below should look a lot like
|
|
// the pretty-printed JSON (indent * x)
|
|
vec![
|
|
// 0x
|
|
String("greetings".to_string()), // 1x
|
|
Object(tree), // 1x + 2x + 2x + 1x
|
|
], // 0x
|
|
// End JSON array (7 lines)
|
|
);
|
|
|
|
// Helper function for counting indents
|
|
fn indents(source: &str) -> usize {
|
|
let trimmed = source.trim_start_matches(' ');
|
|
source.len() - trimmed.len()
|
|
}
|
|
|
|
// Test up to 4 spaces of indents (more?)
|
|
for i in 0..4 {
|
|
let mut writer = Vec::new();
|
|
write!(&mut writer, "{}", json::as_pretty_json(&json).indent(i)).unwrap();
|
|
|
|
let printed = from_utf8(&writer[..]).unwrap();
|
|
|
|
// Check for indents at each line
|
|
let lines: Vec<&str> = printed.lines().collect();
|
|
assert_eq!(lines.len(), 7); // JSON should be 7 lines
|
|
|
|
assert_eq!(indents(lines[0]), 0 * i); // [
|
|
assert_eq!(indents(lines[1]), 1 * i); // "greetings",
|
|
assert_eq!(indents(lines[2]), 1 * i); // {
|
|
assert_eq!(indents(lines[3]), 2 * i); // "hello": "guten tag",
|
|
assert_eq!(indents(lines[4]), 2 * i); // "goodbye": "sayonara"
|
|
assert_eq!(indents(lines[5]), 1 * i); // },
|
|
assert_eq!(indents(lines[6]), 0 * i); // ]
|
|
|
|
// Finally, test that the pretty-printed JSON is valid
|
|
from_str(printed).ok().expect("Pretty-printed JSON is invalid!");
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_hashmap_with_enum_key() {
|
|
use std::collections::HashMap;
|
|
#[derive(Encodable, Eq, Hash, PartialEq, Debug)]
|
|
enum Enum {
|
|
Foo,
|
|
#[allow(dead_code)]
|
|
Bar,
|
|
}
|
|
let mut map = HashMap::new();
|
|
map.insert(Enum::Foo, 0);
|
|
let result = json::encode(&map).unwrap();
|
|
assert_eq!(&result[..], r#"{"Foo":0}"#);
|
|
}
|
|
|
|
fn assert_stream_equal(src: &str, expected: Vec<(JsonEvent, Vec<StackElement<'_>>)>) {
|
|
let mut parser = Parser::new(src.chars());
|
|
let mut i = 0;
|
|
loop {
|
|
let evt = match parser.next() {
|
|
Some(e) => e,
|
|
None => {
|
|
break;
|
|
}
|
|
};
|
|
let (ref expected_evt, ref expected_stack) = expected[i];
|
|
if !parser.stack().is_equal_to(expected_stack) {
|
|
panic!("Parser stack is not equal to {:?}", expected_stack);
|
|
}
|
|
assert_eq!(&evt, expected_evt);
|
|
i += 1;
|
|
}
|
|
}
|
|
#[test]
|
|
fn test_streaming_parser() {
|
|
assert_stream_equal(
|
|
r#"{ "foo":"bar", "array" : [0, 1, 2, 3, 4, 5], "idents":[null,true,false]}"#,
|
|
vec![
|
|
(ObjectStart, vec![]),
|
|
(StringValue("bar".to_string()), vec![StackElement::Key("foo")]),
|
|
(ArrayStart, vec![StackElement::Key("array")]),
|
|
(U64Value(0), vec![StackElement::Key("array"), StackElement::Index(0)]),
|
|
(U64Value(1), vec![StackElement::Key("array"), StackElement::Index(1)]),
|
|
(U64Value(2), vec![StackElement::Key("array"), StackElement::Index(2)]),
|
|
(U64Value(3), vec![StackElement::Key("array"), StackElement::Index(3)]),
|
|
(U64Value(4), vec![StackElement::Key("array"), StackElement::Index(4)]),
|
|
(U64Value(5), vec![StackElement::Key("array"), StackElement::Index(5)]),
|
|
(ArrayEnd, vec![StackElement::Key("array")]),
|
|
(ArrayStart, vec![StackElement::Key("idents")]),
|
|
(NullValue, vec![StackElement::Key("idents"), StackElement::Index(0)]),
|
|
(BooleanValue(true), vec![StackElement::Key("idents"), StackElement::Index(1)]),
|
|
(BooleanValue(false), vec![StackElement::Key("idents"), StackElement::Index(2)]),
|
|
(ArrayEnd, vec![StackElement::Key("idents")]),
|
|
(ObjectEnd, vec![]),
|
|
],
|
|
);
|
|
}
|
|
fn last_event(src: &str) -> JsonEvent {
|
|
let mut parser = Parser::new(src.chars());
|
|
let mut evt = NullValue;
|
|
loop {
|
|
evt = match parser.next() {
|
|
Some(e) => e,
|
|
None => return evt,
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_read_object_streaming() {
|
|
assert_eq!(last_event("{ "), Error(SyntaxError(EOFWhileParsingObject, 1, 3)));
|
|
assert_eq!(last_event("{1"), Error(SyntaxError(KeyMustBeAString, 1, 2)));
|
|
assert_eq!(last_event("{ \"a\""), Error(SyntaxError(EOFWhileParsingObject, 1, 6)));
|
|
assert_eq!(last_event("{\"a\""), Error(SyntaxError(EOFWhileParsingObject, 1, 5)));
|
|
assert_eq!(last_event("{\"a\" "), Error(SyntaxError(EOFWhileParsingObject, 1, 6)));
|
|
|
|
assert_eq!(last_event("{\"a\" 1"), Error(SyntaxError(ExpectedColon, 1, 6)));
|
|
assert_eq!(last_event("{\"a\":"), Error(SyntaxError(EOFWhileParsingValue, 1, 6)));
|
|
assert_eq!(last_event("{\"a\":1"), Error(SyntaxError(EOFWhileParsingObject, 1, 7)));
|
|
assert_eq!(last_event("{\"a\":1 1"), Error(SyntaxError(InvalidSyntax, 1, 8)));
|
|
assert_eq!(last_event("{\"a\":1,"), Error(SyntaxError(EOFWhileParsingObject, 1, 8)));
|
|
assert_eq!(last_event("{\"a\":1,}"), Error(SyntaxError(TrailingComma, 1, 8)));
|
|
|
|
assert_stream_equal("{}", vec![(ObjectStart, vec![]), (ObjectEnd, vec![])]);
|
|
assert_stream_equal(
|
|
"{\"a\": 3}",
|
|
vec![
|
|
(ObjectStart, vec![]),
|
|
(U64Value(3), vec![StackElement::Key("a")]),
|
|
(ObjectEnd, vec![]),
|
|
],
|
|
);
|
|
assert_stream_equal(
|
|
"{ \"a\": null, \"b\" : true }",
|
|
vec![
|
|
(ObjectStart, vec![]),
|
|
(NullValue, vec![StackElement::Key("a")]),
|
|
(BooleanValue(true), vec![StackElement::Key("b")]),
|
|
(ObjectEnd, vec![]),
|
|
],
|
|
);
|
|
assert_stream_equal(
|
|
"{\"a\" : 1.0 ,\"b\": [ true ]}",
|
|
vec![
|
|
(ObjectStart, vec![]),
|
|
(F64Value(1.0), vec![StackElement::Key("a")]),
|
|
(ArrayStart, vec![StackElement::Key("b")]),
|
|
(BooleanValue(true), vec![StackElement::Key("b"), StackElement::Index(0)]),
|
|
(ArrayEnd, vec![StackElement::Key("b")]),
|
|
(ObjectEnd, vec![]),
|
|
],
|
|
);
|
|
assert_stream_equal(
|
|
r#"{
|
|
"a": 1.0,
|
|
"b": [
|
|
true,
|
|
"foo\nbar",
|
|
{ "c": {"d": null} }
|
|
]
|
|
}"#,
|
|
vec![
|
|
(ObjectStart, vec![]),
|
|
(F64Value(1.0), vec![StackElement::Key("a")]),
|
|
(ArrayStart, vec![StackElement::Key("b")]),
|
|
(BooleanValue(true), vec![StackElement::Key("b"), StackElement::Index(0)]),
|
|
(
|
|
StringValue("foo\nbar".to_string()),
|
|
vec![StackElement::Key("b"), StackElement::Index(1)],
|
|
),
|
|
(ObjectStart, vec![StackElement::Key("b"), StackElement::Index(2)]),
|
|
(
|
|
ObjectStart,
|
|
vec![StackElement::Key("b"), StackElement::Index(2), StackElement::Key("c")],
|
|
),
|
|
(
|
|
NullValue,
|
|
vec![
|
|
StackElement::Key("b"),
|
|
StackElement::Index(2),
|
|
StackElement::Key("c"),
|
|
StackElement::Key("d"),
|
|
],
|
|
),
|
|
(
|
|
ObjectEnd,
|
|
vec![StackElement::Key("b"), StackElement::Index(2), StackElement::Key("c")],
|
|
),
|
|
(ObjectEnd, vec![StackElement::Key("b"), StackElement::Index(2)]),
|
|
(ArrayEnd, vec![StackElement::Key("b")]),
|
|
(ObjectEnd, vec![]),
|
|
],
|
|
);
|
|
}
|
|
#[test]
|
|
fn test_read_array_streaming() {
|
|
assert_stream_equal("[]", vec![(ArrayStart, vec![]), (ArrayEnd, vec![])]);
|
|
assert_stream_equal("[ ]", vec![(ArrayStart, vec![]), (ArrayEnd, vec![])]);
|
|
assert_stream_equal(
|
|
"[true]",
|
|
vec![
|
|
(ArrayStart, vec![]),
|
|
(BooleanValue(true), vec![StackElement::Index(0)]),
|
|
(ArrayEnd, vec![]),
|
|
],
|
|
);
|
|
assert_stream_equal(
|
|
"[ false ]",
|
|
vec![
|
|
(ArrayStart, vec![]),
|
|
(BooleanValue(false), vec![StackElement::Index(0)]),
|
|
(ArrayEnd, vec![]),
|
|
],
|
|
);
|
|
assert_stream_equal(
|
|
"[null]",
|
|
vec![(ArrayStart, vec![]), (NullValue, vec![StackElement::Index(0)]), (ArrayEnd, vec![])],
|
|
);
|
|
assert_stream_equal(
|
|
"[3, 1]",
|
|
vec![
|
|
(ArrayStart, vec![]),
|
|
(U64Value(3), vec![StackElement::Index(0)]),
|
|
(U64Value(1), vec![StackElement::Index(1)]),
|
|
(ArrayEnd, vec![]),
|
|
],
|
|
);
|
|
assert_stream_equal(
|
|
"\n[3, 2]\n",
|
|
vec![
|
|
(ArrayStart, vec![]),
|
|
(U64Value(3), vec![StackElement::Index(0)]),
|
|
(U64Value(2), vec![StackElement::Index(1)]),
|
|
(ArrayEnd, vec![]),
|
|
],
|
|
);
|
|
assert_stream_equal(
|
|
"[2, [4, 1]]",
|
|
vec![
|
|
(ArrayStart, vec![]),
|
|
(U64Value(2), vec![StackElement::Index(0)]),
|
|
(ArrayStart, vec![StackElement::Index(1)]),
|
|
(U64Value(4), vec![StackElement::Index(1), StackElement::Index(0)]),
|
|
(U64Value(1), vec![StackElement::Index(1), StackElement::Index(1)]),
|
|
(ArrayEnd, vec![StackElement::Index(1)]),
|
|
(ArrayEnd, vec![]),
|
|
],
|
|
);
|
|
|
|
assert_eq!(last_event("["), Error(SyntaxError(EOFWhileParsingValue, 1, 2)));
|
|
|
|
assert_eq!(from_str("["), Err(SyntaxError(EOFWhileParsingValue, 1, 2)));
|
|
assert_eq!(from_str("[1"), Err(SyntaxError(EOFWhileParsingArray, 1, 3)));
|
|
assert_eq!(from_str("[1,"), Err(SyntaxError(EOFWhileParsingValue, 1, 4)));
|
|
assert_eq!(from_str("[1,]"), Err(SyntaxError(InvalidSyntax, 1, 4)));
|
|
assert_eq!(from_str("[6 7]"), Err(SyntaxError(InvalidSyntax, 1, 4)));
|
|
}
|
|
#[test]
|
|
fn test_trailing_characters_streaming() {
|
|
assert_eq!(last_event("nulla"), Error(SyntaxError(TrailingCharacters, 1, 5)));
|
|
assert_eq!(last_event("truea"), Error(SyntaxError(TrailingCharacters, 1, 5)));
|
|
assert_eq!(last_event("falsea"), Error(SyntaxError(TrailingCharacters, 1, 6)));
|
|
assert_eq!(last_event("1a"), Error(SyntaxError(TrailingCharacters, 1, 2)));
|
|
assert_eq!(last_event("[]a"), Error(SyntaxError(TrailingCharacters, 1, 3)));
|
|
assert_eq!(last_event("{}a"), Error(SyntaxError(TrailingCharacters, 1, 3)));
|
|
}
|
|
#[test]
|
|
fn test_read_identifiers_streaming() {
|
|
assert_eq!(Parser::new("null".chars()).next(), Some(NullValue));
|
|
assert_eq!(Parser::new("true".chars()).next(), Some(BooleanValue(true)));
|
|
assert_eq!(Parser::new("false".chars()).next(), Some(BooleanValue(false)));
|
|
|
|
assert_eq!(last_event("n"), Error(SyntaxError(InvalidSyntax, 1, 2)));
|
|
assert_eq!(last_event("nul"), Error(SyntaxError(InvalidSyntax, 1, 4)));
|
|
assert_eq!(last_event("t"), Error(SyntaxError(InvalidSyntax, 1, 2)));
|
|
assert_eq!(last_event("truz"), Error(SyntaxError(InvalidSyntax, 1, 4)));
|
|
assert_eq!(last_event("f"), Error(SyntaxError(InvalidSyntax, 1, 2)));
|
|
assert_eq!(last_event("faz"), Error(SyntaxError(InvalidSyntax, 1, 3)));
|
|
}
|
|
|
|
#[test]
|
|
fn test_to_json() {
|
|
use json::ToJson;
|
|
use std::collections::{BTreeMap, HashMap};
|
|
|
|
let array2 = Array(vec![U64(1), U64(2)]);
|
|
let array3 = Array(vec![U64(1), U64(2), U64(3)]);
|
|
let object = {
|
|
let mut tree_map = BTreeMap::new();
|
|
tree_map.insert("a".to_string(), U64(1));
|
|
tree_map.insert("b".to_string(), U64(2));
|
|
Object(tree_map)
|
|
};
|
|
|
|
assert_eq!(array2.to_json(), array2);
|
|
assert_eq!(object.to_json(), object);
|
|
assert_eq!(3_isize.to_json(), I64(3));
|
|
assert_eq!(4_i8.to_json(), I64(4));
|
|
assert_eq!(5_i16.to_json(), I64(5));
|
|
assert_eq!(6_i32.to_json(), I64(6));
|
|
assert_eq!(7_i64.to_json(), I64(7));
|
|
assert_eq!(8_usize.to_json(), U64(8));
|
|
assert_eq!(9_u8.to_json(), U64(9));
|
|
assert_eq!(10_u16.to_json(), U64(10));
|
|
assert_eq!(11_u32.to_json(), U64(11));
|
|
assert_eq!(12_u64.to_json(), U64(12));
|
|
assert_eq!(13.0_f32.to_json(), F64(13.0_f64));
|
|
assert_eq!(14.0_f64.to_json(), F64(14.0_f64));
|
|
assert_eq!(().to_json(), Null);
|
|
assert_eq!(f32::INFINITY.to_json(), Null);
|
|
assert_eq!(f64::NAN.to_json(), Null);
|
|
assert_eq!(true.to_json(), Boolean(true));
|
|
assert_eq!(false.to_json(), Boolean(false));
|
|
assert_eq!("abc".to_json(), String("abc".to_string()));
|
|
assert_eq!("abc".to_string().to_json(), String("abc".to_string()));
|
|
assert_eq!((1_usize, 2_usize).to_json(), array2);
|
|
assert_eq!((1_usize, 2_usize, 3_usize).to_json(), array3);
|
|
assert_eq!([1_usize, 2_usize].to_json(), array2);
|
|
assert_eq!((&[1_usize, 2_usize, 3_usize]).to_json(), array3);
|
|
assert_eq!((vec![1_usize, 2_usize]).to_json(), array2);
|
|
assert_eq!(vec![1_usize, 2_usize, 3_usize].to_json(), array3);
|
|
let mut tree_map = BTreeMap::new();
|
|
tree_map.insert("a".to_string(), 1 as usize);
|
|
tree_map.insert("b".to_string(), 2);
|
|
assert_eq!(tree_map.to_json(), object);
|
|
let mut hash_map = HashMap::new();
|
|
hash_map.insert("a".to_string(), 1 as usize);
|
|
hash_map.insert("b".to_string(), 2);
|
|
assert_eq!(hash_map.to_json(), object);
|
|
assert_eq!(Some(15).to_json(), I64(15));
|
|
assert_eq!(Some(15 as usize).to_json(), U64(15));
|
|
assert_eq!(None::<isize>.to_json(), Null);
|
|
}
|
|
|
|
#[test]
|
|
fn test_encode_hashmap_with_arbitrary_key() {
|
|
use std::collections::HashMap;
|
|
#[derive(PartialEq, Eq, Hash, Encodable)]
|
|
struct ArbitraryType(usize);
|
|
let mut hm: HashMap<ArbitraryType, bool> = HashMap::new();
|
|
hm.insert(ArbitraryType(1), true);
|
|
let mut mem_buf = string::String::new();
|
|
let mut encoder = Encoder::new(&mut mem_buf);
|
|
let result = hm.encode(&mut encoder);
|
|
match result.unwrap_err() {
|
|
EncoderError::BadHashmapKey => (),
|
|
_ => panic!("expected bad hash map key"),
|
|
}
|
|
}
|