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use std::{collections::HashMap, net::IpAddr, path::PathBuf, convert::Infallible};
use pretty_assertions::assert_eq;
use serde::Deserialize;
use confique::{meta, Config, Layer};
#[test]
fn simple() {
/// Root doc comment banana.
#[derive(Config)]
#[allow(dead_code)]
struct Animals {
/// Doc comment for cat.
#[config(default = 8080)]
cat: u32,
/// Doc comment for dog.
dog: String,
}
assert_eq!(Animals::META, meta::Meta {
name: "Animals",
doc: &[" Root doc comment banana."],
fields: &[
meta::Field {
name: "cat",
doc: &[" Doc comment for cat."],
kind: meta::FieldKind::Leaf {
env: None,
kind: meta::LeafKind::Required {
default: Some(meta::Expr::Integer(meta::Integer::U32(8080))),
},
},
},
meta::Field {
name: "dog",
doc: &[" Doc comment for dog."],
kind: meta::FieldKind::Leaf {
env: None,
kind: meta::LeafKind::Required {
default: None,
},
},
},
],
});
let def = <Animals as Config>::Layer::default_values();
assert_eq!(def.cat, Some(8080));
assert_eq!(def.dog, None);
}
mod full {
#![allow(dead_code)]
use super::*;
/// A sample configuration for our app.
#[derive(Config)]
pub(crate) struct Conf {
/// Leaf field on top level struct.
app_name: String,
#[config(nested)]
normal: NormalTest,
#[config(nested)]
deserialize_with: DeserializeWithTest,
/// Doc comment on nested.
#[config(nested)]
env: EnvTest,
}
#[derive(Config)]
pub(crate) struct NormalTest {
required: String,
#[config(default = "127.0.0.1")]
with_default: IpAddr,
optional: Option<PathBuf>,
}
/// Testing the `deserialize_with` attribute!
/// Multiline, wow!
#[derive(Config)]
pub(crate) struct DeserializeWithTest {
#[config(deserialize_with = deserialize_dummy)]
required: Dummy,
#[config(deserialize_with = deserialize_dummy, default = "peter")]
with_default: Dummy,
#[config(deserialize_with = deserialize_dummy)]
optional: Option<Dummy>,
#[config(env = "ENV_TEST_FULL_0", deserialize_with = deserialize_dummy)]
with_env: Dummy,
}
/// Doc comment on nested struct!
#[derive(Config)]
pub(crate) struct EnvTest {
#[config(env = "ENV_TEST_FULL_1")]
required: String,
#[config(env = "ENV_TEST_FULL_2", default = 8080)]
with_default: u16,
#[config(env = "ENV_TEST_FULL_3")]
optional: Option<PathBuf>,
#[config(env = "ENV_TEST_FULL_4", parse_env = parse_dummy_collection)]
env_collection: DummyCollection,
}
}
#[test]
fn full() {
use full::*;
assert_eq!(Conf::META, meta::Meta {
name: "Conf",
doc: &[" A sample configuration for our app."],
fields: &[
meta::Field {
name: "app_name",
doc: &[" Leaf field on top level struct."],
kind: meta::FieldKind::Leaf {
env: None,
kind: meta::LeafKind::Required { default: None },
},
},
meta::Field {
name: "normal",
doc: &[],
kind: meta::FieldKind::Nested {
meta: &meta::Meta {
name: "NormalTest",
doc: &[],
fields: &[
meta::Field {
name: "required",
doc: &[],
kind: meta::FieldKind::Leaf {
env: None,
kind: meta::LeafKind::Required { default: None },
},
},
meta::Field {
name: "with_default",
doc: &[],
kind: meta::FieldKind::Leaf {
env: None,
kind: meta::LeafKind::Required {
default: Some(meta::Expr::Str("127.0.0.1")),
},
},
},
meta::Field {
name: "optional",
doc: &[],
kind: meta::FieldKind::Leaf {
env: None,
kind: meta::LeafKind::Optional,
},
},
],
},
},
},
meta::Field {
name: "deserialize_with",
doc: &[],
kind: meta::FieldKind::Nested {
meta: &meta::Meta {
name: "DeserializeWithTest",
doc: &[" Testing the `deserialize_with` attribute!", " Multiline, wow!"],
fields: &[
meta::Field {
name: "required",
doc: &[],
kind: meta::FieldKind::Leaf {
env: None,
kind: meta::LeafKind::Required { default: None },
},
},
meta::Field {
name: "with_default",
doc: &[],
kind: meta::FieldKind::Leaf {
env: None,
kind: meta::LeafKind::Required {
default: Some(meta::Expr::Str("peter")),
},
},
},
meta::Field {
name: "optional",
doc: &[],
kind: meta::FieldKind::Leaf {
env: None,
kind: meta::LeafKind::Optional,
},
},
meta::Field {
name: "with_env",
doc: &[],
kind: meta::FieldKind::Leaf {
env: Some("ENV_TEST_FULL_0"),
kind: meta::LeafKind::Required { default: None },
},
},
]
},
},
},
meta::Field {
name: "env",
doc: &[" Doc comment on nested."],
kind: meta::FieldKind::Nested {
meta: &meta::Meta {
name: "EnvTest",
doc: &[" Doc comment on nested struct!"],
fields: &[
meta::Field {
name: "required",
doc: &[],
kind: meta::FieldKind::Leaf {
env: Some("ENV_TEST_FULL_1"),
kind: meta::LeafKind::Required { default: None },
},
},
meta::Field {
name: "with_default",
doc: &[],
kind: meta::FieldKind::Leaf {
env: Some("ENV_TEST_FULL_2"),
kind: meta::LeafKind::Required {
default: Some(
meta::Expr::Integer(meta::Integer::U16(8080))
),
},
},
},
meta::Field {
name: "optional",
doc: &[],
kind: meta::FieldKind::Leaf {
env: Some("ENV_TEST_FULL_3"),
kind: meta::LeafKind::Optional,
},
},
meta::Field {
name: "env_collection",
doc: &[],
kind: meta::FieldKind::Leaf {
env: Some("ENV_TEST_FULL_4"),
kind: meta::LeafKind::Required { default: None },
},
},
],
},
},
},
],
});
let def = <Conf as Config>::Layer::default_values();
assert_eq!(def.app_name, None);
assert_eq!(def.normal.required, None);
assert_eq!(def.normal.with_default, Some(IpAddr::V4(std::net::Ipv4Addr::LOCALHOST)));
assert_eq!(def.normal.optional, None);
assert_eq!(def.deserialize_with.required, None);
assert_eq!(def.deserialize_with.with_default, Some(Dummy("dummy peter".into())));
assert_eq!(def.deserialize_with.optional, None);
assert_eq!(def.deserialize_with.with_env, None);
assert_eq!(def.env.required, None);
assert_eq!(def.env.with_default, Some(8080));
assert_eq!(def.env.optional, None);
assert_eq!(def.env.env_collection, None);
}
#[derive(Debug, PartialEq)]
struct Dummy(String);
pub(crate) fn deserialize_dummy<'de, D>(deserializer: D) -> Result<Dummy, D::Error>
where
D: serde::Deserializer<'de>,
{
let s = String::deserialize(deserializer)?;
Ok(Dummy(format!("dummy {s}")))
}
#[derive(Debug, PartialEq, Deserialize)]
struct DummyCollection(Vec<String>);
pub(crate) fn parse_dummy_collection(input: &str) -> Result<DummyCollection, Infallible> {
Ok(DummyCollection(
input.split(',').map(ToString::to_string).collect(),
))
}
// This only makes sure this compiles and doesn't result in any "cannot infer
// type" problems.
#[test]
fn empty_array_and_map() {
#[derive(Config)]
#[allow(dead_code)]
struct Animals {
#[config(default = [])]
cat: Vec<String>,
#[config(default = {})]
dog: HashMap<u32, f32>,
}
}