Web API functional testing

Web API functional testing

The Web API testing framework allows you to test Magento Web API from the client application point of view. The tests can be used with either REST or SOAP. The REST or SOAP adapter that runs the tests is specified in PHPUnit configuration. See How to Run the Tests for more information.

Implementation Details

The Web API functional testing framework depends on the integration testing framework and reuses most of classes implemented there.

Custom Annotations for Data Fixtures

In the Web API functional tests only, the custom annotation @magentoApiDataFixture is available for declaring fixtures. The difference of this annotation from @magentoDataFixture is that the fixture will be committed and accessible during HTTP requests made within the test body. The usage rules of @magentoApiDataFixture are the same as @magentoDataFixture usage rules.

Do not define fixtures in dev/tests/api-functional. Instead, they must be taken from dev/tests/integration. The integration framework defines most necessary fixtures, and they should be reused during Web API functional testing. If the existing set of fixtures is insufficient, add new fixtures under dev/tests/integration. The fixtures will then be available for both testing frameworks.

To keep your test environment clean, clear all entities created in fixture files or within tests itself from the DB after test execution. This can be done either directly in tearDown or by a corresponding rollback for the fixture file. This file should be named the same as a fixture, but with _rollback suffix.

How to Create a New Test

All Web API functional tests should inherit from the generic test case Magento\TestFramework\TestCase\WebapiAbstract. It defines the _webApiCall() method, which should be used to perform Web API calls from tests. Clients of _webApiCall() are unaware of which adapter will be used to perform the remote call.

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namespace Magento\Webapi\Routing;

class CoreRoutingTest extends \Magento\TestFramework\TestCase\WebapiAbstract
{
    public function testBasicRoutingExplicitPath()
    {
        $itemId = 1;
        $serviceInfo = [
            'rest' => [
                'resourcePath' => '/V1/testmodule1/' . $itemId,
                'httpMethod' => \Magento\Framework\Webapi\Rest\Request::HTTP_METHOD_GET,
            ],
            'soap' => [
                'service' => 'testModule1AllSoapAndRestV1',
                'operation' => 'testModule1AllSoapAndRestV1Item',
            ],
        ];
        $requestData = ['itemId' => $itemId];
        $item = $this->_webApiCall($serviceInfo, $requestData);
        $this->assertEquals('testProduct1', $item['name'], "Item was retrieved unsuccessfully");
    }
}

The test above should be able to test SOAP and REST, depending on what adapter is currently used by the testing framework. The format of $serviceInfo is defined by the Web API client adapter interface:

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namespace Magento\TestFramework\TestCase\Webapi;

interface AdapterInterface
{
    /**
     * Perform call to the specified service method.
     *
     * @param array $serviceInfo <pre>
     * array(
     *     'rest' => array(
     *         'resourcePath' => $resourcePath, // e.g. /products/:id
     *         'httpMethod' => $httpMethod,     // e.g. GET
     *         'token' => '21hasbtlaqy8t3mj73kjh71cxxkqj4aq'    // optional : for token based Authentication. Will
     *                                                             override default OAuth based authentication provided
     *                                                             by test framework
     *     ),
     *     'soap' => array(
     *         'service' => $soapService,    // soap service name with Version suffix e.g. catalogProductV1, customerV2
     *         'operation' => $operation     // soap operation name e.g. catalogProductCreate
     *     )
     * );
     * </pre>
     * @param array $arguments
     * @param string|null $storeCode if store code not provided, default store code will be used
     * @param \Magento\Integration\Model\Integration|null $integration
     * @return array|string|int|float|bool
     */
    public function call($serviceInfo, $arguments = [], $storeCode = null, $integration = null);
}

How to Run the Tests

Prerequisites

1. Install the PHP Soap extension.

   Copy php_soap.dll or php_soap.so to your PHP extensions directory. Edit your php.ini file and enable the PHP Soap extension. Usually this means deleting the leading semi-colon in front of the extension. Then restart Apache.

   extension=php_soap.dll

2. Before running the functional tests you need to clear your cache. Now you are ready to run the tests.

Running the Tests

1. Copy /dev/tests/api-functional/phpunit.xml.dist to /dev/tests/api-functional/phpunit.xml.

   a. Specify your Magento instance URL as a value of TESTS_BASE_URL in phpunit.xml.

   b. Choose the required Web API adapter, rest or soap, to be used and specify it in TESTS_WEB_API_ADAPTER.

2. Copy /dev/tests/api-functional/config/install-config-mysql.php.dist to /dev/tests/api-functional/config/install-config-mysql.php.

3. Configure your DB connection and install settings in /dev/tests/api-functional/config/install-config-mysql.php. Specify the Magento database. The base URL to access this Magento instance must be specified in phpunit.xml.

4. Run phpunit using the /dev/tests/api-functional/phpunit.xml configuration file.