class GroupByTest

class GroupByTest extends UITestBase {
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_views_groupby_save',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests whether basic saving works.
     *
     * @todo This should check the change of the settings as well.
     */
    public function testGroupBySave() {
        $this->drupalGet('admin/structure/views/view/test_views_groupby_save/edit');
        $edit_groupby_url = 'admin/structure/views/nojs/handler-group/test_views_groupby_save/default/field/id';
        $this->assertSession()
            ->linkByHrefNotExists($edit_groupby_url, 0, 'No aggregation link found.');
        // Enable aggregation on the view.
        $edit = [
            'group_by' => TRUE,
        ];
        $this->drupalGet('admin/structure/views/nojs/display/test_views_groupby_save/default/group_by');
        $this->submitForm($edit, 'Apply');
        $this->assertSession()
            ->linkByHrefExists($edit_groupby_url, 0, 'Aggregation link found.');
        // Change the groupby type in the UI.
        $this->drupalGet($edit_groupby_url);
        $this->submitForm([
            'options[group_type]' => 'count',
        ], 'Apply');
        $this->assertSession()
            ->linkExists('COUNT(Views test: ID)', 0, 'The count setting is displayed in the UI');
        $this->submitForm([], 'Save');
        $view = $this->container
            ->get('entity_type.manager')
            ->getStorage('view')
            ->load('test_views_groupby_save');
        $display = $view->getDisplay('default');
        $this->assertTrue($display['display_options']['group_by'], 'The groupby setting was saved on the view.');
        $this->assertEquals('count', $display['display_options']['fields']['id']['group_type'], 'Count groupby_type was saved on the view.');
    }

}