feat: impl Add for Price
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1 changed files with 77 additions and 1 deletions
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@ -2,7 +2,7 @@
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//
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// SPDX-License-Identifier: AGPL-3.0-or-later
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use std::str::FromStr;
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use std::{ops::Add, str::FromStr};
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use async_trait::async_trait;
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use cqrs_es::Aggregate;
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@ -62,6 +62,16 @@ impl Price {
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}
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}
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impl Add for Price {
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type Output = Self;
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fn add(self, rhs: Self) -> Self::Output {
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let self_minor = self.major_as_minor() + self.minor;
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let rhs_minor = rhs.major_as_minor() + rhs.minor;
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Self::from_minor(self_minor + rhs_minor, self.currency)
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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@ -110,4 +120,70 @@ mod tests {
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}
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);
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}
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#[test]
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fn test_price_add() {
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let a = Price {
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minor: 10,
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major: 100,
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currency: Currency::INR,
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};
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let b = Price {
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minor: 1,
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major: 200,
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currency: Currency::INR,
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};
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assert_eq!(
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a + b,
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Price {
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minor: 11,
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major: 300,
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currency: Currency::INR
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}
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);
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}
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#[test]
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fn test_price_add_zero() {
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let a = Price {
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minor: 0,
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major: 0,
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currency: Currency::INR,
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};
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assert_eq!(
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a.clone() + a,
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Price {
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minor: 0,
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major: 0,
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currency: Currency::INR
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}
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);
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}
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#[test]
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fn test_price_add_overflow() {
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let a = Price {
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minor: 80,
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major: 100,
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currency: Currency::INR,
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};
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let b = Price {
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minor: 80,
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major: 200,
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currency: Currency::INR,
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};
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assert_eq!(
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a + b,
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Price {
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minor: 60,
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major: 301,
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currency: Currency::INR
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}
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);
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}
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}
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