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- <?php
- namespace Drupal\KernelTests\Core\Database;
- /**
- * Tests cloning Select queries.
- *
- * @group Database
- */
- class SelectCloneTest extends DatabaseTestBase {
- /**
- * Test that subqueries as value within conditions are cloned properly.
- */
- public function testSelectConditionSubQueryCloning() {
- $subquery = db_select('test', 't');
- $subquery->addField('t', 'id', 'id');
- $subquery->condition('age', 28, '<');
- $query = db_select('test', 't');
- $query->addField('t', 'name', 'name');
- $query->condition('id', $subquery, 'IN');
- $clone = clone $query;
- // Cloned query should not be altered by the following modification
- // happening on original query.
- $subquery->condition('age', 25, '>');
- $clone_result = $clone->countQuery()->execute()->fetchField();
- $query_result = $query->countQuery()->execute()->fetchField();
- // Make sure the cloned query has not been modified
- $this->assertEqual(3, $clone_result, 'The cloned query returns the expected number of rows');
- $this->assertEqual(2, $query_result, 'The query returns the expected number of rows');
- }
- }
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