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Explicit COMMIT and ROLLBACK in Mock

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This commit is contained in:
Chris Tsang 2021-10-11 12:11:40 +08:00
parent 91efa1fae2
commit f94c33d1ea
2 changed files with 22 additions and 3 deletions
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23
src/database/mock.rs
View File

@ -117,7 +117,8 @@ impl MockDatabaseTrait for MockDatabase {
fn commit(&mut self) {
if self.transaction.is_some() {
let transaction = self.transaction.take().unwrap();
let mut transaction = self.transaction.take().unwrap();
transaction.push(Statement::from_string(self.db_backend, "COMMIT".to_owned()));
self.transaction_log.push(transaction.into_transaction());
} else {
panic!("There is no open transaction to commit");
@ -126,7 +127,12 @@ impl MockDatabaseTrait for MockDatabase {
fn rollback(&mut self) {
if self.transaction.is_some() {
self.transaction = None;
let mut transaction = self.transaction.take().unwrap();
transaction.push(Statement::from_string(
self.db_backend,
"ROLLBACK".to_owned(),
));
self.transaction_log.push(transaction.into_transaction());
} else {
panic!("There is no open transaction to rollback");
}
@ -283,6 +289,7 @@ mod tests {
r#"SELECT "fruit"."id", "fruit"."name", "fruit"."cake_id" FROM "fruit""#,
vec![]
),
Statement::from_string(DbBackend::Postgres, "COMMIT".to_owned()),
]),
Transaction::from_sql_and_values(
DbBackend::Postgres,
@ -313,7 +320,17 @@ mod tests {
_ => panic!(),
}
assert_eq!(db.into_transaction_log(), vec![]);
assert_eq!(
db.into_transaction_log(),
vec![Transaction::many(vec![
Statement::from_sql_and_values(
DbBackend::Postgres,
r#"SELECT "cake"."id", "cake"."name" FROM "cake" LIMIT $1"#,
vec![1u64.into()]
),
Statement::from_string(DbBackend::Postgres, "ROLLBACK".to_owned()),
]),]
);
}
#[smol_potat::test]

2
src/database/stream/transaction.rs
View File

@ -12,6 +12,8 @@ use futures::lock::MutexGuard;
use crate::{DbErr, InnerConnection, QueryResult, Statement};
#[ouroboros::self_referencing]
/// `TransactionStream` cannot be used in a `transaction` closure as it does not impl `Send`.
/// It seems to be a Rust limitation right now, and solution to work around this deemed to be extremely hard.
pub struct TransactionStream<'a> {
stmt: Statement,
conn: MutexGuard<'a, InnerConnection>,