Mmoreram\PHPFormatter\Sorter\UseSorter::setGroups PHP Method

    public function setGroups($groups)
    {
        $this->groups = $groups;
        return $this;
    }

 /**
  * Test skip empty
  */
 public function testGroupSkip()
 {
     $parsedData = $this->useSorter->setGroups(['Test2', 'TestEmpty', '_main', 'Test3'])->setSortType(UseSorter::SORT_TYPE_ALPHABETIC)->setSortDirection(UseSorter::SORT_DIRECTION_ASC)->setGroupType(UseSorter::GROUP_TYPE_EACH)->setGroupSkipEmpty(true)->sort($this->data);
     $result = "\nuse Test2\\Myclass3;\nuse Test2\\Myclass4;\n\nuse Test1\\Myclass1;\nuse Test1\\Myclass2;\nuse Test1\\MyFolder5\\File as MyFile;\nuse Test4\\Myclass3;\n\nuse Test3\\File;\nuse Test3\\MyFolder\\Myclass;\n";
     $realResult = "<?php\n\n/**\n * Copyright\n */\n\nnamespace PHPFormatter\\Tests\\Mocks;\n{$result}\n/**\n * Class SimpleMock\n */\nclass SimpleMock\n{}";
     $this->assertEquals($realResult, $parsedData);
 }