3 namespace Drupal\KernelTests\Core\Database;
6 * Tests cloning Select queries.
10 class SelectCloneTest extends DatabaseTestBase {
13 * Test that subqueries as value within conditions are cloned properly.
15 public function testSelectConditionSubQueryCloning() {
16 $subquery = db_select('test', 't');
17 $subquery->addField('t', 'id', 'id');
18 $subquery->condition('age', 28, '<');
20 $query = db_select('test', 't');
21 $query->addField('t', 'name', 'name');
22 $query->condition('id', $subquery, 'IN');
24 $clone = clone $query;
25 // Cloned query should not be altered by the following modification
26 // happening on original query.
27 $subquery->condition('age', 25, '>');
29 $clone_result = $clone->countQuery()->execute()->fetchField();
30 $query_result = $query->countQuery()->execute()->fetchField();
32 // Make sure the cloned query has not been modified
33 $this->assertEqual(3, $clone_result, 'The cloned query returns the expected number of rows');
34 $this->assertEqual(2, $query_result, 'The query returns the expected number of rows');