class DataSetTest

class DataSetTest 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_data_set');
    }
    
    /**
     * Tests the summary.
     *
     * @covers ::summary
     */
    public function testSummary() {
        $this->assertEquals('Set a data value', $this->action
            ->summary());
    }
    
    /**
     * Tests that primitive values can be set.
     *
     * @covers ::execute
     */
    public function testPrimitiveValues() {
        $this->action
            ->setContextValue('data', 'original')
            ->setContextValue('value', 'replacement');
        $this->action
            ->execute();
        $this->assertSame('replacement', $this->action
            ->getContextValue('data'));
        $this->assertSame([], $this->action
            ->autoSaveContext());
    }
    
    /**
     * Tests that a variable can be set to NULL.
     */
    public function testSetToNull() {
        // We don't need to set the 'value' context, it is NULL by default.
        $this->action
            ->setContextValue('data', 'original');
        $this->action
            ->execute();
        $this->assertNull($this->action
            ->getContextValue('data'));
        $this->assertSame([], $this->action
            ->autoSaveContext());
    }

}