function SelectTest::testSimpleSelectExpression

Tests SELECT statements with expressions.

File

core/tests/Drupal/KernelTests/Core/Database/SelectTest.php, line 129

Class

SelectTest

Tests the Select query builder.

Namespace

Code

public function testSimpleSelectExpression() : void {
  $query = $this->connection
    ->select('test');
  $name_field = $query->addField('test', 'name');
  $age_field = $query->addExpression("[age]*2", 'double_age');
  $query->condition('age', 27);
  $result = $query->execute();
  // Check that the aliases are being created the way we want.
  $this->assertEquals('name', $name_field, 'Name field alias is correct.');
  $this->assertEquals('double_age', $age_field, 'Age field alias is correct.');
  // Ensure that we got the right record.
  $record = $result->fetch();
  $this->assertEquals('George', $record->{$name_field}, 'Fetched name is correct.');
  $this->assertEquals(27 * 2, $record->{$age_field}, 'Fetched age expression is correct.');
}