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Test transaction recovery from sqlite busy error

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This commit is contained in:
Kornel 2018-07-28 12:39:19 +01:00
parent 2487b18db0
commit b075592147
1 changed files with 36 additions and 1 deletions
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37
src/lib.rs
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@ -623,7 +623,7 @@ bitflags! {
impl Default for OpenFlags {
fn default() -> OpenFlags {
OpenFlags::SQLITE_OPEN_READ_WRITE | OpenFlags::SQLITE_OPEN_CREATE |
OpenFlags::SQLITE_OPEN_READ_WRITE | OpenFlags::SQLITE_OPEN_CREATE |
OpenFlags::SQLITE_OPEN_NO_MUTEX | OpenFlags::SQLITE_OPEN_URI
}
}
@ -990,6 +990,41 @@ mod test {
Connection::open_in_memory().unwrap()
}
#[test]
fn test_concurrent_transactions_busy_commit() {
let tmp = TempDir::new("locked").unwrap();
let path = tmp.path().join("transactions.db3");
Connection::open(&path).expect("create temp db").execute_batch("
BEGIN; CREATE TABLE foo(x INTEGER);
INSERT INTO foo VALUES(42); END;")
.expect("create temp db");
let mut db1 = Connection::open(&path).unwrap();
let mut db2 = Connection::open(&path).unwrap();
db1.execute_batch("PRAGMA busy_timeout = 0;").unwrap();
db2.execute_batch("PRAGMA busy_timeout = 0;").unwrap();
{
let tx1 = db1.transaction().unwrap();
let tx2 = db2.transaction().unwrap();
// SELECT first makes sqlite lock with a shared lock
let _ = tx1.query_row("SELECT x FROM foo LIMIT 1", &[], |_| ()).unwrap();
let _ = tx2.query_row("SELECT x FROM foo LIMIT 1", &[], |_| ()).unwrap();
tx1.execute("INSERT INTO foo VALUES(?1)", &[&1]).unwrap();
let _ = tx2.execute("INSERT INTO foo VALUES(?1)", &[&2]);
let _ = tx1.commit();
let _ = tx2.commit();
}
let _ = db1.transaction().expect("commit should have closed transaction");
let _ = db2.transaction().expect("commit should have closed transaction");
}
#[test]
#[cfg_attr(rustfmt, rustfmt_skip)]
fn test_persistence() {