map.rs - mozsearch

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use serde_json::{from_str, Map, Value};

#[test]

fn test_preserve_order() {

    // Sorted order

    #[cfg(not(feature = "preserve_order"))]

    const EXPECTED: &[&str] = &["a", "b", "c"];

    // Insertion order

    #[cfg(feature = "preserve_order")]

    const EXPECTED: &[&str] = &["b", "a", "c"];

    let v: Value = from_str(r#"{"b":null,"a":null,"c":null}"#).unwrap();

    let keys: Vec<_> = v.as_object().unwrap().keys().collect();

    assert_eq!(keys, EXPECTED);

#[test]

fn test_append() {

    // Sorted order

    #[cfg(not(feature = "preserve_order"))]

    const EXPECTED: &[&str] = &["a", "b", "c"];

    // Insertion order

    #[cfg(feature = "preserve_order")]

    const EXPECTED: &[&str] = &["b", "a", "c"];

    let mut v: Value = from_str(r#"{"b":null,"a":null,"c":null}"#).unwrap();

    let val = v.as_object_mut().unwrap();

    let mut m = Map::new();

    m.append(val);

    let keys: Vec<_> = m.keys().collect();

    assert_eq!(keys, EXPECTED);

    assert!(val.is_empty());

#[test]

fn test_retain() {

    let mut v: Value = from_str(r#"{"b":null,"a":null,"c":null}"#).unwrap();

    let val = v.as_object_mut().unwrap();

    val.retain(|k, _| k.as_str() != "b");

    let keys: Vec<_> = val.keys().collect();

    assert_eq!(keys, &["a", "c"]);