I am looking to write basic unit tests for some helper functions that I am working on for a Magento 2 module. I am able to execute my custom module unit tests but I am getting the following error for the first test.
When I execute the tests for my module I get the following error:
Call to a member function getBaseUrl() on null
My Helper code is below: I will be adding quite a few functions to it later and the function its self returns the correct result if I call it else where in my code, I am not able to get the test working.
namespace MyModuleSpace\MyModule\Helper;
use Magento\Framework\App\Helper\Context;
use Magento\Store\Model\StoreManagerInterface;
class Data extends \Magento\Framework\App\Helper\AbstractHelper {
/**
* Attribute to hold storeManager Object
*
* @var object
*/
protected $storeManager;
/**
* _construct
*
* @param Context $context
* @param StoreManagerInterface $storeManager
*/
public function __construct(Context $context, StoreManagerInterface $storeManager) {
$this->storeManager = $storeManager;
parent::__construct($context);
}
/**
* No params needed. Returns base site URL.
*
* @return string
*/
public function getBaseURL() {
return $this->storeManager->getStore()->getBaseUrl();
}
}
My Unit Test code is
namespace MyModuleSpace\MyModule\Test\Unit\Helper;
//class HelperTest extends \PHPUnit_Framework_TestCase { // not usable as it is not supported
class HelperTest extends \PHPUnit\Framework\TestCase {
protected $helper;
/**
* Sets up the Mock (reflection) objects and properties for tests...
*
*/
protected function setUp() {
$objectManager = new \Magento\Framework\TestFramework\Unit\Helper\ObjectManager($this);
$this->helper = $objectManager->getObject('MyModuleSpace\MyModule\Helper\Data');
}
/**
* Run unit tests for getBaseURL()
*/
public function testGetBaseURL() {
$baseUrl = $this->helper->getBaseUrl();
// Test we are returning a string...
$this->assertTrue(is_string($baseUrl));
}
}
I am not sure what I am doing wrong but any help would be appreciated.
