mod serde { use serde::{Deserialize, Serialize}; use serde_dhall::{from_str, serialize, FromDhall, StaticType, ToDhall}; fn assert_de(s: &str, x: T) where T: FromDhall + StaticType + PartialEq + std::fmt::Debug, { assert_eq!( from_str(s) .static_type_annotation() .parse::() .map_err(|e| e.to_string()), Ok(x) ); } fn assert_ser(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(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", >::new()); assert_serde("[] : List Text", >::new()); assert_serde( r#"["foo", "bar"]"#, vec!["foo".to_owned(), "bar".to_owned()], ); assert_ser(r#"["foo", "bar"]"#, vec!["foo", "bar"]); assert_serde::>("[1, 2]", vec![1, 2]); } #[test] fn optional() { assert_serde("None Natural", None::); assert_serde("None Text", None::); assert_serde("Some 1", Some(1u64)); assert_eq!( serialize(&None::).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); // #[derive( // Debug, Clone, PartialEq, Eq, Deserialize, Serialize, StaticType, // )] // struct Bar(u64); // assert_serde::("{ _1 = 1 }", Bar (1)); #[derive( Debug, Clone, PartialEq, Eq, Deserialize, Serialize, StaticType, )] struct Baz { x: u64, y: i64, } assert_serde::("{ 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::("< X: Natural | Y: Integer >.X 1", Foo::X(1)); #[derive( Debug, Clone, PartialEq, Eq, Deserialize, Serialize, StaticType, )] enum Bar { X, Y(i64), } assert_serde::("< X | Y: Integer >.X", Bar::X); assert!(from_str("< X | Y: Integer >.Y") .static_type_annotation() .parse::() .is_err()); } #[test] fn test_de_untyped() { use std::collections::BTreeMap; use std::collections::HashMap; fn parse(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::>("{ x = 1, y = 2 }"), expected_map ); assert_eq!( parse::>("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::>( "{ `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::>("{ x = 1, y = 2 }"), expected_map ); #[derive(Debug, PartialEq, Eq, Deserialize)] struct Foo { x: u64, y: Option, } // Omit optional field assert_eq!(parse::("{ x = 1 }"), Foo { x: 1, y: None }); // https://github.com/Nadrieril/dhall-rust/issues/155 assert!(from_str("List/length [True, 42]").parse::().is_err()); } // TODO: test various builder configurations // In particular test cloning and reusing builder }