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Add tests for MySQL row-level locking clauses #342

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Merged
JanJakes merged 1 commit into from
Apr 3, 2026
+25 −0
Merged

Add tests for MySQL row-level locking clauses #342

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25 changes: 25 additions & 0 deletions packages/mysql-on-sqlite/tests/WP_SQLite_Driver_Tests.php
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Original file line number Diff line number Diff line change
Expand Up @@ -6805,6 +6805,31 @@ public function testTransactionSavepoints(): void {
$this->assertSame( array(), (array) array_column( $result, 'id' ) );
}

public function testRowLeveLockingClauses() {
$this->assertQuery( 'CREATE TABLE t (name VARCHAR(255), value VARCHAR(255))' );
$this->engine->query( "INSERT INTO t (name, value) VALUES ('test_lock', '123')" );

// FOR UPDATE
$res = $this->assertQuery( "SELECT value FROM t WHERE name = 'test_lock' FOR UPDATE" );
$this->assertEquals( '123', $res[0]->value );

// FOR SHARE
$res = $this->assertQuery( "SELECT value FROM t WHERE name = 'test_lock' FOR SHARE" );
$this->assertEquals( '123', $res[0]->value );

// LOCK IN SHARE MODE
$res = $this->assertQuery( "SELECT value FROM t WHERE name = 'test_lock' LOCK IN SHARE MODE" );
$this->assertEquals( '123', $res[0]->value );

// SKIP LOCKED
$res = $this->assertQuery( "SELECT value FROM t WHERE name = 'test_lock' FOR UPDATE SKIP LOCKED" );
$this->assertEquals( '123', $res[0]->value );

// NOWAIT
$res = $this->assertQuery( "SELECT value FROM t WHERE name = 'test_lock' FOR UPDATE NOWAIT" );
$this->assertEquals( '123', $res[0]->value );
}

public function testSelectOrderByAmbiguousColumnResolution(): void {
$this->assertQuery( 'CREATE TABLE t1 (id INT, name TEXT)' );
$this->assertQuery( 'CREATE TABLE t2 (id INT, name TEXT)' );
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