[
                [
                    'label' => 'Collapsible Group Item #1',
                    'content' => [
                        'test content1',
                        'test content2'
                    ],
                ],
                [
                    'label' => 'Collapsible Group Item #2',
                    'content' => [
                        'test content1',
                        'test content2'
                    ],
                    'contentOptions' => [
                        'class' => 'testContentOptions'
                    ],
                    'options' => [
                        'class' => 'testClass',
                        'id' => 'testId'
                    ],
                    'footer' => 'Footer'
                ],
                [
                    'label' => '
Collapsible Group Item #3
',
                    'content' => [
                        'test content1
',
                        'test content2
'
                    ],
                    'contentOptions' => [
                        'class' => 'testContentOptions2'
                    ],
                    'options' => [
                        'class' => 'testClass2',
                        'id' => 'testId2'
                    ],
                    'encode' => false,
                    'footer' => 'Footer2'
                ],
                [
                    'label' => 'Collapsible Group Item #4
',
                    'content' => [
                        'test content1
',
                        'test content2
'
                    ],
                    'contentOptions' => [
                        'class' => 'testContentOptions3'
                    ],
                    'options' => [
                        'class' => 'testClass3',
                        'id' => 'testId3'
                    ],
                    'encode' => true,
                    'footer' => 'Footer3'
                ],
            ]
        ]);
        $this->assertEqualsWithoutLE(<<
- test content1
 
- test content2
 
 
- test content1
 
- test content2
 
 
test content1
 
test content2
 
 
test content1
 
test content2
 
 
HTML
        , $output);
    }
}