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[0] in function chmod in /var/www/hopeinstoughton_www/wp-content/plugins/simple-universal-google-analytics/main.php on line 8
[1] in function include_once in /var/www/hopeinstoughton_www/wp-settings.php on line 560
[2] in function require_once in /var/www/hopeinstoughton_www/wp-config.php on line 85
[3] in function require_once in /var/www/hopeinstoughton_www/wp-load.php on line 50
[4] in function require_once in /var/www/hopeinstoughton_www/wp-blog-header.php on line 13
[5] in function require in /var/www/hopeinstoughton_www/index.php on line 17

<?php
use PHPUnit\Framework\TestCase;
use Microsoft\Graph\Test\GraphTestBase;
use Microsoft\Graph\Model;

class DeltaQueryTest extends TestCase
{
    private $_client;
    private $graphTestBase;

    protected function setUp(): void
    {
        $this->graphTestBase = new GraphTestBase();
        $this->_client = $this->graphTestBase->graphClient;
    }

    /**
    * @group functional
    */
	public function testDeltaQuery()
    {
        $this->_client->setApiVersion("beta");
        $deltaPageRequest = $this->_client->createCollectionRequest("GET", "/groups/delta")
            ->setReturnType(Model\Group::class);
        while (!$deltaPageRequest->isEnd()) {
            $groups = $deltaPageRequest->getPage();
            foreach ($groups as $group) {
                // Deserialize members@delta into user array
                $properties = $group->getProperties();
                if (array_key_exists("members@delta", $properties))
                {
                    $members = array();
                    foreach ($properties["members@delta"] as $member) {
                        $members[] = new Model\User($member);
                    }
                    $this->assertNotNull($members[0]->getId());
                }
            }
        }
        $deltaLink = $deltaPageRequest->getDeltaLink();
        $this->assertNotNull($deltaLink);

        $deltaPageRequest2 = $this->_client->createCollectionRequest("GET", $deltaLink)
            ->setReturnType(Model\Group::class);
        $groups = $deltaPageRequest2->getPage();

        // Count is likely 0 but collection should not be null
        $this->assertNotNull($groups);
    }

    /**
    * @group functional
    */
    public function testSetAccessToken()
    {
        $this->_client->setApiVersion("beta");
        $deltaPageRequest = $this->_client->createCollectionRequest("GET", "/groups/delta")
            ->setReturnType(Model\Group::class);

        // Test if we can change the accessToken
        while (!$deltaPageRequest->isEnd()) {
            // Store authentication-header
            $oldAuthenticationHeader = $deltaPageRequest->getHeaders()['Authorization'];
            // Set a new delta-token
            $deltaPageRequest->setAccessToken($this->graphTestBase->getAccessToken());
            // Get the new authentication-header
            $newAuthenticationHeader = $deltaPageRequest->getHeaders()['Authorization'];
            // Do the actual request
            $groups = $deltaPageRequest->getPage();

            $this->assertNotSame($oldAuthenticationHeader,$newAuthenticationHeader);
            $this->assertNotNull($groups);
        }
    }
}