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|
use bstr::B;
use super::*;
#[test]
fn test_empty_attrs() {
let attrs = NixAttrs::construct(0, vec![]).expect("empty attr construction should succeed");
assert!(
matches!(attrs, NixAttrs(AttrsRep::Empty)),
"empty attribute set should use optimised representation"
);
}
#[test]
fn test_simple_attrs() {
let attrs = NixAttrs::construct(
1,
vec![Value::String("key".into()), Value::String("value".into())],
)
.expect("simple attr construction should succeed");
assert!(
matches!(attrs, NixAttrs(AttrsRep::Im(_))),
"simple attribute set should use map representation",
)
}
#[test]
fn test_kv_attrs() {
let name_val = Value::String("name".into());
let value_val = Value::String("value".into());
let meaning_val = Value::String("meaning".into());
let forty_two_val = Value::Integer(42);
let kv_attrs = NixAttrs::construct(
2,
vec![
value_val,
forty_two_val.clone(),
name_val,
meaning_val.clone(),
],
)
.expect("constructing K/V pair attrs should succeed");
match kv_attrs {
NixAttrs(AttrsRep::KV { name, value })
if name.to_str().unwrap() == meaning_val.to_str().unwrap()
|| value.to_str().unwrap() == forty_two_val.to_str().unwrap() => {}
_ => panic!(
"K/V attribute set should use optimised representation, but got {:?}",
kv_attrs
),
}
}
#[test]
fn test_empty_attrs_iter() {
let attrs = NixAttrs::construct(0, vec![]).unwrap();
assert!(attrs.iter().next().is_none());
}
#[test]
fn test_kv_attrs_iter() {
let name_val = Value::String("name".into());
let value_val = Value::String("value".into());
let meaning_val = Value::String("meaning".into());
let forty_two_val = Value::Integer(42);
let kv_attrs = NixAttrs::construct(
2,
vec![
value_val,
forty_two_val.clone(),
name_val,
meaning_val.clone(),
],
)
.expect("constructing K/V pair attrs should succeed");
let mut iter = kv_attrs.iter().collect::<Vec<_>>().into_iter();
let (k, v) = iter.next().unwrap();
assert!(k == *NAME_REF);
assert!(v.to_str().unwrap() == meaning_val.to_str().unwrap());
let (k, v) = iter.next().unwrap();
assert!(k == *VALUE_REF);
assert!(v.as_int().unwrap() == forty_two_val.as_int().unwrap());
assert!(iter.next().is_none());
}
#[test]
fn test_map_attrs_iter() {
let attrs = NixAttrs::construct(
1,
vec![Value::String("key".into()), Value::String("value".into())],
)
.expect("simple attr construction should succeed");
let mut iter = attrs.iter().collect::<Vec<_>>().into_iter();
let (k, v) = iter.next().unwrap();
assert!(k == &NixString::from("key"));
assert_eq!(v.to_str().unwrap(), B("value"));
assert!(iter.next().is_none());
}
|
