/**
  * Method to test showDatabases().
  *
  * @return void
  *
  * @covers Windwalker\Query\Postgresql\PostgresqlQueryBuilder::listDatabases
  */
 public function testShowDatabases()
 {
     $expected = "SELECT datname FROM pg_database WHERE a = b AND datistemplate = false;";
     $actual = PostgresqlQueryBuilder::listDatabases('a = b');
     $this->assertEquals($this->format($expected), $this->format($actual));
 }