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|
mod serde {
use serde::{Deserialize, Serialize};
use serde_dhall::{from_str, serialize, FromDhall, StaticType, ToDhall};
fn assert_de<T>(s: &str, x: T)
where
T: FromDhall + StaticType + PartialEq + std::fmt::Debug,
{
assert_eq!(
from_str(s)
.static_type_annotation()
.parse::<T>()
.map_err(|e| e.to_string()),
Ok(x)
);
}
fn assert_ser<T>(s: &str, x: T)
where
T: ToDhall + StaticType + PartialEq + std::fmt::Debug,
{
assert_eq!(
serialize(&x)
.static_type_annotation()
.to_string()
.map_err(|e| e.to_string()),
Ok(s.to_string())
);
}
fn assert_serde<T>(s: &str, x: T)
where
T: ToDhall
+ FromDhall
+ StaticType
+ PartialEq
+ std::fmt::Debug
+ Clone,
{
assert_de(s, x.clone());
assert_ser(s, x);
}
#[test]
fn numbers() {
assert_serde("True", true);
assert_serde("1", 1u64);
assert_serde("1", 1u32);
assert_serde("1", 1usize);
assert_serde("+1", 1i64);
assert_serde("+1", 1i32);
assert_serde("+1", 1isize);
assert_serde("1.0", 1.0f64);
assert_serde("1.0", 1.0f32);
}
#[test]
fn text() {
assert_serde(r#""foo""#, "foo".to_owned());
assert_ser(r#""foo""#, "foo");
}
#[test]
fn list() {
assert_serde("[] : List Natural", <Vec<u64>>::new());
assert_serde("[] : List Text", <Vec<String>>::new());
assert_serde(
r#"["foo", "bar"]"#,
vec!["foo".to_owned(), "bar".to_owned()],
);
assert_ser(r#"["foo", "bar"]"#, vec!["foo", "bar"]);
assert_serde::<Vec<u64>>("[1, 2]", vec![1, 2]);
}
#[test]
fn optional() {
assert_serde("None Natural", None::<u64>);
assert_serde("None Text", None::<String>);
assert_serde("Some 1", Some(1u64));
assert_eq!(
serialize(&None::<u64>).to_string().map_err(|e| e.to_string()),
Err("cannot serialize value without a type annotation: Optional(None)".to_string())
);
}
#[test]
fn tuple() {
assert_serde::<()>(r#"{=}"#, ());
assert_serde::<(u64, String)>(
r#"{ _1 = 1, _2 = "foo" }"#,
(1, "foo".to_owned()),
);
assert_serde::<(u64, u64, u64, u64)>(
r#"{ _1 = 1, _2 = 2, _3 = 3, _4 = 4 }"#,
(1, 2, 3, 4),
);
}
#[test]
fn structs() {
// #[derive(
// Debug, Clone, PartialEq, Eq, Deserialize, Serialize, StaticType,
// )]
// struct Foo;
// assert_serde::<Foo>("{=}", Foo);
// #[derive(
// Debug, Clone, PartialEq, Eq, Deserialize, Serialize, StaticType,
// )]
// struct Bar(u64);
// assert_serde::<Bar>("{ _1 = 1 }", Bar (1));
#[derive(
Debug, Clone, PartialEq, Eq, Deserialize, Serialize, StaticType,
)]
struct Baz {
x: u64,
y: i64,
}
assert_serde::<Baz>("{ x = 1, y = -2 }", Baz { x: 1, y: -2 });
}
#[test]
fn enums() {
#[derive(
Debug, Clone, PartialEq, Eq, Deserialize, Serialize, StaticType,
)]
enum Foo {
X(u64),
Y(i64),
}
assert_serde::<Foo>("< X: Natural | Y: Integer >.X 1", Foo::X(1));
#[derive(
Debug, Clone, PartialEq, Eq, Deserialize, Serialize, StaticType,
)]
enum Bar {
X,
Y(i64),
}
assert_serde::<Bar>("< X | Y: Integer >.X", Bar::X);
assert!(from_str("< X | Y: Integer >.Y")
.static_type_annotation()
.parse::<Bar>()
.is_err());
}
#[test]
fn test_de_untyped() {
use std::collections::BTreeMap;
use std::collections::HashMap;
fn parse<T: FromDhall>(s: &str) -> T {
from_str(s).parse().unwrap()
}
// Test tuples on record of wrong type. Fields are just taken in alphabetic order.
assert_eq!(
parse::<(u64, String, i64)>(r#"{ y = "foo", x = 1, z = +42 }"#),
(1, "foo".to_owned(), 42)
);
let mut expected_map = HashMap::new();
expected_map.insert("x".to_string(), 1);
expected_map.insert("y".to_string(), 2);
assert_eq!(
parse::<HashMap<String, u64>>("{ x = 1, y = 2 }"),
expected_map
);
assert_eq!(
parse::<HashMap<String, u64>>("toMap { x = 1, y = 2 }"),
expected_map
);
let mut expected_map = HashMap::new();
expected_map.insert("if".to_string(), 1);
expected_map.insert("FOO_BAR".to_string(), 2);
expected_map.insert("baz-kux".to_string(), 3);
assert_eq!(
parse::<HashMap<String, u64>>(
"{ `if` = 1, FOO_BAR = 2, baz-kux = 3 }"
),
expected_map
);
let mut expected_map = BTreeMap::new();
expected_map.insert("x".to_string(), 1);
expected_map.insert("y".to_string(), 2);
assert_eq!(
parse::<BTreeMap<String, u64>>("{ x = 1, y = 2 }"),
expected_map
);
#[derive(Debug, PartialEq, Eq, Deserialize)]
struct Foo {
x: u64,
y: Option<u64>,
}
// Omit optional field
assert_eq!(parse::<Foo>("{ x = 1 }"), Foo { x: 1, y: None });
// https://github.com/Nadrieril/dhall-rust/issues/155
assert!(from_str("List/length [True, 42]").parse::<bool>().is_err());
}
// TODO: test various builder configurations
// In particular test cloning and reusing builder
}
|
