tests: add test for list single permission

Signed-off-by: nabim777 <nabinalemagar019@gmail.com>

tests/acceptance/TestHelpers/GraphHelper.php

@@ -2059,6 +2059,32 @@ class GraphHelper {
 		);
 	}
 
+	/**
+	 * @param string $baseUrl
+	 * @param string $user
+	 * @param string $password
+	 * @param string $spaceId
+	 * @param string $permissionId
+	 *
+	 * @return ResponseInterface
+	 * @throws GuzzleException
+	 */
+	public static function getSingleDrivePermission(
+		string $baseUrl,
+		string $user,
+		string $password,
+		string $spaceId,
+		string $permissionId
+	): ResponseInterface {
+		$url = self::getBetaFullUrl($baseUrl, "drives/$spaceId/root/permissions/$permissionId");
+		return HttpRequestHelper::get(
+			$url,
+			$user,
+			$password,
+			self::getRequestHeaders()
+		);
+	}
+
 	/**
 	 * @param string $baseUrl
 	 * @param string $user