public function SelectComplexTest::testLeftOuterJoin in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/KernelTests/Core/Database/SelectComplexTest.php \Drupal\KernelTests\Core\Database\SelectComplexTest::testLeftOuterJoin()

Tests LEFT OUTER joins.

File

core/tests/Drupal/KernelTests/Core/Database/SelectComplexTest.php, line 54

Class

SelectComplexTest

Tests the Select query builder with more complex queries.

Namespace

Drupal\KernelTests\Core\Database

Code

public function testLeftOuterJoin() {
  $query = $this->connection
    ->select('test', 'p');
  $people_alias = $query
    ->leftJoin('test_task', 't', '[t].[pid] = [p].[id]');
  $name_field = $query
    ->addField('p', 'name', 'name');
  $query
    ->addField($people_alias, 'task', 'task');
  $query
    ->addField($people_alias, 'priority', 'priority');
  $query
    ->orderBy($name_field);
  $result = $query
    ->execute();
  $num_records = 0;
  $last_name = 0;

  // Verify that the results are returned in the correct order.
  foreach ($result as $record) {
    $num_records++;
    $this
      ->assertGreaterThanOrEqual(0, strcmp($record->{$name_field}, $last_name));
  }
  $this
    ->assertEquals(8, $num_records, 'Returned the correct number of rows.');
}