function ContextIntegrationTest::testAllowNullValue

Tests that NULL values for contexts are allowed if specified.

File

tests/src/Kernel/ContextIntegrationTest.php, line 72

Class

ContextIntegrationTest

Tests the extended core context API with Rules.

Namespace

Code

public function testAllowNullValue() {
    // Configure a simple rule with the data set action which allows NULL
    // values.
    $action = $this->expressionManager
        ->createInstance('rules_action', ContextConfig::create()->setConfigKey('action_id', 'rules_data_set')
        ->map('data', 'null_variable')
        ->map('value', 'new_value')
        ->toArray());
    $rule = $this->expressionManager
        ->createRule()
        ->addExpressionObject($action);
    $component = RulesComponent::create($rule)->addContextDefinition('null_variable', ContextDefinition::create('string'))
        ->addContextDefinition('new_value', ContextDefinition::create('string'))
        ->setContextValue('null_variable', NULL)
        ->setContextValue('new_value', 'new value');
    $component->execute();
    $this->assertEquals('new value', $component->getState()
        ->getVariableValue('null_variable'));
}