class DataListItemAddTest

class DataListItemAddTest extends RulesIntegrationTestBase {
    
    /**
     * The action to be tested.
     *
     * @var \Drupal\rules\Core\RulesActionInterface
     */
    protected $action;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->action = $this->actionManager
            ->createInstance('rules_list_item_add');
    }
    
    /**
     * Tests the summary.
     *
     * @covers ::summary
     */
    public function testSummary() {
        $this->assertEquals('Add list item', $this->action
            ->summary());
    }
    
    /**
     * Tests the action execution with default values.
     *
     * @covers ::execute
     */
    public function testActionExecutionWithDefaults() {
        // Test adding a value at the end (default position).
        $list = [
            'One',
            'Two',
            'Three',
        ];
        $this->action
            ->setContextValue('list', $list)
            ->setContextValue('item', 'Four');
        $this->action
            ->execute();
        // The list should contain four items, with the new item at the end.
        $this->assertEquals([
            'One',
            'Two',
            'Three',
            'Four',
        ], $this->action
            ->getContextValue('list'));
    }
    
    /**
     * Tests the action execution - item append.
     *
     * @covers ::execute
     */
    public function testActionExecutionItemAppend() {
        // Test adding a value at the end.
        $list = [
            'One',
            'Two',
            'Three',
        ];
        $this->action
            ->setContextValue('list', $list)
            ->setContextValue('item', 'Four')
            ->setContextValue('position', 'end');
        $this->action
            ->execute();
        // The list should contain four items, with the new item added at the end.
        $this->assertEquals([
            'One',
            'Two',
            'Three',
            'Four',
        ], $this->action
            ->getContextValue('list'));
    }
    
    /**
     * Tests the action execution - item prepend.
     *
     * @covers ::execute
     */
    public function testActionExecutionItemPrepend() {
        // Test adding a value at the start.
        $list = [
            'One',
            'Two',
            'Three',
        ];
        $this->action
            ->setContextValue('list', $list)
            ->setContextValue('item', 'Zero')
            ->setContextValue('position', 'start');
        $this->action
            ->execute();
        // The list should contain four items, with the new item added at the start.
        $this->assertEquals([
            'Zero',
            'One',
            'Two',
            'Three',
        ], $this->action
            ->getContextValue('list'));
    }
    
    /**
     * Tests the action execution - enforce unique items.
     *
     * @covers ::execute
     */
    public function testActionExecutionEnforceUnique() {
        // Test unique.
        $list = [
            'One',
            'Two',
            'Three',
            'Four',
        ];
        $this->action
            ->setContextValue('list', $list)
            ->setContextValue('item', 'Four')
            ->setContextValue('unique', TRUE);
        $this->action
            ->execute();
        // The list should remain the same.
        $this->assertEquals([
            'One',
            'Two',
            'Three',
            'Four',
        ], $this->action
            ->getContextValue('list'));
    }
    
    /**
     * Tests the action execution - add non-unique items.
     *
     * @covers ::execute
     */
    public function testActionExecutionNonUnique() {
        // Test non-unique.
        $list = [
            'One',
            'Two',
            'Three',
            'Four',
        ];
        $this->action
            ->setContextValue('list', $list)
            ->setContextValue('item', 'Four')
            ->setContextValue('unique', FALSE)
            ->setContextValue('position', 'end');
        $this->action
            ->execute();
        // The list should contain five items, with the new item added at the end.
        $this->assertEquals([
            'One',
            'Two',
            'Three',
            'Four',
            'Four',
        ], $this->action
            ->getContextValue('list'));
    }

}