decdn-common 0.2.0

use super::*;

/// `[client] region_allowlist = [...]` round-trips through TOML into
/// `Some`, carrying the raw (unvalidated) strings — parsing into
/// [`decdn_protocol::Region`] happens at the client's discovery boundary,
/// not here.
#[test]
fn client_region_allowlist_parses_when_present() {
    let file: FileConfig = toml::from_str(
        r#"
            [client]
            region_allowlist = ["US", "DE"]
            "#,
    )
    .expect("valid [client] table parses");
    assert_eq!(
        file.client
            .expect("[client] present")
            .region_allowlist
            .expect("region_allowlist present"),
        vec!["US".to_string(), "DE".to_string()]
    );
}

/// An absent `[client]` table resolves to `None` — no filter, not an
/// empty one — so a config file that omits `[client]` keeps behaving
/// exactly as one that never had a region filter.
#[test]
fn client_section_absent_by_default() {
    let file: FileConfig = toml::from_str("").expect("empty config parses");
    assert!(file.client.is_none());
}

/// `[self_update] check = false` round-trips through TOML into `Some(false)`.
#[test]
fn self_update_check_parses_when_present() {
    let file: FileConfig = toml::from_str(
        r"
            [self_update]
            check = false
            ",
    )
    .expect("valid [self_update] table parses");
    assert_eq!(
        file.self_update.expect("[self_update] present").check,
        Some(false)
    );
}

/// An absent `[self_update]` table resolves to `None`, which the CLI reads as
/// "check once a day".
#[test]
fn self_update_section_absent_by_default() {
    let file: FileConfig = toml::from_str("").expect("empty config parses");
    assert!(file.self_update.is_none());
}

/// `[self_update]` rejects a key it does not define, like every other section.
#[test]
fn self_update_rejects_unknown_keys() {
    let err = toml::from_str::<FileConfig>(
        r"
            [self_update]
            auto = true
            ",
    )
    .expect_err("unknown key is refused");
    assert!(err.to_string().contains("auto"), "{err}");
}