function ConnectionUnitTest::testOpenQueryPrefetchClose

Tests Database::closeConnection() with a query and custom prefetch method.

File

modules/simpletest/tests/database_test.test, line 4428

Class

ConnectionUnitTest

Tests management of database connections.

Code

function testOpenQueryPrefetchClose() {
    if ($this->skipTest) {
        return;
    }
    // Add and open a new connection.
    $this->addConnection();
    $id = $this->getConnectionID();
    Database::getConnection($this->target, $this->key);
    // Verify that there is a new connection.
    $this->assertConnection($id);
    // Execute a query.
    Database::getConnection($this->target, $this->key)
        ->query('SHOW TABLES')
        ->fetchCol();
    // Close the connection.
    Database::closeConnection($this->target, $this->key);
    // Wait 20ms to give the database engine sufficient time to react.
    usleep(20000);
    // Verify that we are back to the original connection count.
    $this->assertNoConnection($id);
}