klirr-core 0.2.1

Zero-maintenance and smart FOSS generating beautiful invoices for services and expenses.
Documentation 
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use derive_more::FromStr;

use crate::prelude::*;

/// A purchase order number associated with this invoice, e.g. `"PO-12345"`
/// Typically agreed upon between the vendor and client before the
/// invoice is issued.
#[derive(
    Clone, Debug, Display, Serialize, Deserialize, PartialEq, Eq, Hash, From, Deref, FromStr,
)]
#[from(String, &'static str)]
#[serde(transparent)]
pub struct PurchaseOrder(String);

impl HasSample for PurchaseOrder {
    fn sample() -> Self {
        Self::from("PO-12345")
    }

    fn sample_other() -> Self {
        Self::from("PO-67890")
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    type Sut = PurchaseOrder;

    #[test]
    fn equality() {
        assert_eq!(Sut::sample(), Sut::sample());
        assert_eq!(Sut::sample_other(), Sut::sample_other());
    }

    #[test]
    fn inequality() {
        assert_ne!(Sut::sample(), Sut::sample_other());
    }
}