feat: implement Aggregate for LineItem aggregate
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2 changed files with 100 additions and 0 deletions
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@ -64,6 +64,8 @@ pub struct AddLineItemCommand {
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#[cfg(test)]
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#[cfg(test)]
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mod tests {
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mod tests {
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use time::macros::datetime;
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use crate::utils::uuid::tests::UUID;
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use crate::utils::uuid::tests::UUID;
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use super::*;
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use super::*;
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@ -78,6 +80,7 @@ mod tests {
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UnvalidatedAddLineItemCommandBuilder::default()
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UnvalidatedAddLineItemCommandBuilder::default()
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.product_name(product_name.into())
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.product_name(product_name.into())
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.adding_by(adding_by)
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.adding_by(adding_by)
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.sale_time(datetime!(1970-01-01 0:00 UTC))
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.quantity(quantity.clone())
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.quantity(quantity.clone())
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.product_id(product_id)
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.product_id(product_id)
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.build()
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.build()
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@ -10,6 +10,10 @@ use serde::{Deserialize, Serialize};
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use time::OffsetDateTime;
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use time::OffsetDateTime;
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use uuid::Uuid;
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use uuid::Uuid;
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use crate::ordering::{
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application::services::{errors::*, *},
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domain::{commands::*, events::*},
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};
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use crate::types::quantity::Quantity;
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use crate::types::quantity::Quantity;
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#[derive(
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#[derive(
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@ -26,6 +30,19 @@ pub struct LineItem {
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deleted: bool,
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deleted: bool,
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}
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}
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impl Default for LineItem {
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fn default() -> Self {
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Self {
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sale_time: OffsetDateTime::now_utc(),
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product_name: String::default(),
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product_id: Default::default(),
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line_item_id: Default::default(),
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quantity: Default::default(),
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deleted: false,
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}
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}
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}
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#[cfg(test)]
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#[cfg(test)]
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mod tests {
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mod tests {
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use crate::{
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use crate::{
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@ -49,3 +66,83 @@ mod tests {
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}
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}
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}
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}
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}
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}
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#[async_trait]
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impl Aggregate for LineItem {
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type Command = OrderingCommand;
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type Event = OrderingEvent;
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type Error = OrderingError;
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type Services = std::sync::Arc<dyn OrderingServicesInterface>;
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// This identifier should be unique to the system.
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fn aggregate_type() -> String {
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"ordering.line_item".to_string()
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}
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// The aggregate logic goes here. Note that this will be the _bulk_ of a CQRS system
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// so expect to use helper functions elsewhere to keep the code clean.
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async fn handle(
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&self,
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command: Self::Command,
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services: &Self::Services,
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) -> Result<Vec<Self::Event>, Self::Error> {
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match command {
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OrderingCommand::AddLineItem(cmd) => {
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let res = services.add_line_item().add_line_item(cmd).await?;
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Ok(vec![OrderingEvent::LineItemAdded(res)])
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}
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OrderingCommand::UpdateLineItem(cmd) => {
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unimplemented!()
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}
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OrderingCommand::DeleteLineItem(cmd) => {
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unimplemented!()
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} // _ => Ok(Vec::default()),
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}
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}
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fn apply(&mut self, event: Self::Event) {
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match event {
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OrderingEvent::LineItemAdded(e) => *self = e.line_item().clone(),
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OrderingEvent::LineItemUpdated(e) => *self = e.new_line_item().clone(),
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OrderingEvent::LineItemDeleted(e) => *self = e.line_item().clone(),
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// _ => (),
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}
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}
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}
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#[cfg(test)]
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mod aggregate_tests {
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use std::sync::Arc;
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use add_line_item_service::tests::mock_add_line_item_service;
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use cqrs_es::test::TestFramework;
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use super::*;
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use crate::tests::bdd::*;
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use crate::ordering::domain::{
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add_line_item_command::*,
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line_item_added_event::tests::get_added_line_item_event_from_command,
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};
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type LineItemTestFramework = TestFramework<LineItem>;
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#[test]
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fn test_create_product() {
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let cmd = AddLineItemCommand::get_cmd();
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let expected = get_added_line_item_event_from_command(&cmd);
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let expected = OrderingEvent::LineItemAdded(expected);
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let mut services = MockOrderingServicesInterface::new();
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services
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.expect_add_line_item()
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.times(IS_CALLED_ONLY_ONCE.unwrap())
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.return_const(mock_add_line_item_service(IS_CALLED_ONLY_ONCE, cmd.clone()));
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LineItemTestFramework::with(Arc::new(services))
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.given_no_previous_events()
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.when(OrderingCommand::AddLineItem(cmd))
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.then_expect_events(vec![expected]);
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}
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}
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