/**
* Tests the \Joomla\Database\DatabaseQuery::group method.
*
* @return void
*
* @covers \Joomla\Database\DatabaseQuery::group
* @since 1.0
*/
public function testGroup()
{
$this->assertThat($this->instance->group('foo'), $this->identicalTo($this->instance), 'Tests chaining.');
$this->assertThat(trim(TestHelper::getValue($this->instance, 'group')), $this->equalTo('GROUP BY foo'), 'Tests rendered value.');
// Add another column.
$this->instance->group('bar');
$this->assertThat(trim(TestHelper::getValue($this->instance, 'group')), $this->equalTo('GROUP BY foo,bar'), 'Tests rendered value after second use.');
}
