47 lines
1.2 KiB
Rust
47 lines
1.2 KiB
Rust
use serde_json::{from_str, Map, Value};
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#[test]
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fn test_preserve_order() {
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// Sorted order
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#[cfg(not(feature = "preserve_order"))]
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const EXPECTED: &[&str] = &["a", "b", "c"];
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// Insertion order
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#[cfg(feature = "preserve_order")]
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const EXPECTED: &[&str] = &["b", "a", "c"];
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let v: Value = from_str(r#"{"b":null,"a":null,"c":null}"#).unwrap();
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let keys: Vec<_> = v.as_object().unwrap().keys().collect();
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assert_eq!(keys, EXPECTED);
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}
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#[test]
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fn test_append() {
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// Sorted order
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#[cfg(not(feature = "preserve_order"))]
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const EXPECTED: &[&str] = &["a", "b", "c"];
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// Insertion order
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#[cfg(feature = "preserve_order")]
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const EXPECTED: &[&str] = &["b", "a", "c"];
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let mut v: Value = from_str(r#"{"b":null,"a":null,"c":null}"#).unwrap();
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let val = v.as_object_mut().unwrap();
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let mut m = Map::new();
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m.append(val);
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let keys: Vec<_> = m.keys().collect();
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assert_eq!(keys, EXPECTED);
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assert!(val.is_empty());
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}
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#[test]
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fn test_retain() {
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let mut v: Value = from_str(r#"{"b":null,"a":null,"c":null}"#).unwrap();
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let val = v.as_object_mut().unwrap();
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val.retain(|k, _| k.as_str() != "b");
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let keys: Vec<_> = val.keys().collect();
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assert_eq!(keys, &["a", "c"]);
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}
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