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sova_db/
test_db.rs

1use crate::handle::DbHandle;
2use crate::DbError;
3use sea_orm::{Database, DatabaseConnection, DbErr, TransactionTrait};
4use std::sync::Arc;
5
6/// Isolated test connection: pool + open transaction that rolls back on [`TestDb::rollback`].
7pub struct TestDb {
8    _conn: DatabaseConnection,
9    handle: DbHandle,
10    tx: Option<Arc<sea_orm::DatabaseTransaction>>,
11}
12
13impl TestDb {
14    pub fn db(&self) -> &DbHandle {
15        &self.handle
16    }
17
18    pub async fn rollback(mut self) -> Result<(), DbError> {
19        if let Some(arc) = self.tx.take() {
20            match Arc::try_unwrap(arc) {
21                Ok(tx) => tx.rollback().await.map_err(DbError)?,
22                Err(_) => {
23                    return Err(DbError(DbErr::Custom("test transaction still held".into())));
24                }
25            }
26        }
27        Ok(())
28    }
29}
30
31/// Connect via `DATABASE_URL` and begin a transaction for test isolation.
32pub async fn test_db() -> Result<TestDb, DbError> {
33    let url = std::env::var("DATABASE_URL")
34        .map_err(|_| DbError(DbErr::Custom("DATABASE_URL is not set".into())))?;
35    let conn = Database::connect(&url).await.map_err(DbError)?;
36    let tx = conn.begin().await.map_err(DbError)?;
37    let arc = Arc::new(tx);
38    Ok(TestDb {
39        _conn: conn,
40        handle: DbHandle::Tx(Arc::clone(&arc)),
41        tx: Some(arc),
42    })
43}