diff --git a/phpunit.xml b/phpunit.xml
index dad99dd69..5ec9092ee 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -36,6 +36,10 @@
     </filter>
 
     <php>
+        <!--Main environment-->
+        <env name="MAIN_SYS_SYS" value="workflow" />
+        <env name="MAIN_TIME_ZONE" value="America/New_York" />
+        <env name="MAIN_SYSTEM_UTC_TIME_ZONE" value="1" />
         <!--Connection to database-->
         <env name="DB_HOST" value="127.0.0.1" />
         <env name="DB_DATABASE" value="test" />
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index fdee3691a..148d060d1 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -14,26 +14,46 @@ use Illuminate\Support\Facades\Schema;
 /**
  * @todo Migrate to configuration parameters
  */
-
 define('PATH_TRUNK', dirname(__DIR__));
-define('PATH_CORE', PATH_TRUNK.'/workflow/engine/');
+define('PATH_CORE', PATH_TRUNK . '/workflow/engine/');
 define('PATH_CONFIG', PATH_CORE . 'config/');
-define('PATH_RBAC_CORE',dirname(__DIR__).'/rbac/engine/');
-define('PATH_DB', dirname(__DIR__).'/shared/sites/');
-define('PATH_DATA', dirname(__DIR__).'/shared/rbac/');
+$pathData = PATH_CONFIG . 'paths_installed.php';
+if (file_exists($pathData)) {
+    require_once $pathData;
+} else {
+    define('PATH_DATA', dirname(__DIR__) . '/shared/rbac/');
+}
+define('PATH_RBAC_CORE', dirname(__DIR__) . '/rbac/engine/');
+define('PATH_DB', dirname(__DIR__) . '/shared/sites/');
 define('PATH_SEP', '/');
-define('PATH_METHODS', dirname(__DIR__).'/workflow/engine/methods/');
+define('PATH_METHODS', dirname(__DIR__) . '/workflow/engine/methods/');
 define('SYS_LANG', 'en');
 define('DB_ADAPTER', 'mysql');
 define('SYS_SKIN', 'neoclassic');
-define('SYS_SYS', 'workflow');
-define('PATH_WORKSPACE',PATH_TRUNK.'/shared/sites/' . SYS_SYS . '/');
-define('PMTABLE_KEY','pmtable');
+define('SYS_SYS', env('MAIN_SYS_SYS', 'workflow'));
+define('PATH_WORKSPACE', PATH_TRUNK . '/shared/sites/' . SYS_SYS . '/');
+define('PMTABLE_KEY', 'pmtable');
+define('PATH_WORKFLOW_MYSQL_DATA', PATH_TRUNK . '/workflow/engine/data/mysql/');
+define('PATH_RBAC_MYSQL_DATA', PATH_TRUNK . '/rbac/engine/data/mysql/');
+define('PATH_LANGUAGECONT', PATH_DATA . '/META-INF/');
+
+//timezone
+$_SESSION['__SYSTEM_UTC_TIME_ZONE__'] = (int) (env('MAIN_SYSTEM_UTC_TIME_ZONE', 'workflow')) == 1;
+
+//Set Time Zone
+ini_set('date.timezone', $_SESSION['__SYSTEM_UTC_TIME_ZONE__'] ? 'UTC' : env('MAIN_TIME_ZONE', 'America/New_York'));
+define('TIME_ZONE', ini_get('date.timezone'));
 
 // Setup basic app services
 $app = require __DIR__ . '/../bootstrap/app.php';
 $app->make(Kernel::class)->bootstrap();
 
+//Overwrite with the Processmaker env.ini configuration used in production environments
+//@todo: move env.ini configuration to .env
+ini_set('date.timezone', TIME_ZONE); //Set Time Zone
+date_default_timezone_set(TIME_ZONE);
+config(['app.timezone' => TIME_ZONE]);
+
 // Setup our testexternal database
 config(['database.connections.testexternal' => [
         'driver' => 'mysql',
@@ -49,6 +69,11 @@ config(['database.connections.testexternal' => [
         'engine' => null
 ]]);
 
+//configuration values
+config([
+    "system.workspace" => SYS_SYS
+]);
+
 // Now, drop all test tables and repopulate with schema
 Schema::connection('testexternal')->dropIfExists('test');
 
diff --git a/tests/unit/workflow/engine/src/ProcessMaker/Services/Api/LightTest.php b/tests/unit/workflow/engine/src/ProcessMaker/Services/Api/LightTest.php
new file mode 100644
index 000000000..c24d476cc
--- /dev/null
+++ b/tests/unit/workflow/engine/src/ProcessMaker/Services/Api/LightTest.php
@@ -0,0 +1,355 @@
+<?php
+
+namespace Tests\unit\workflow\engine\src\ProcessMaker\Services\Api;
+
+use G;
+use GuzzleHttp\Client;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\File;
+use ProcessMaker\Core\Installer;
+use ProcessMaker\Core\System;
+use ProcessMaker\Model\ListUnassigned;
+use ProcessMaker\Model\Process;
+use ProcessMaker\Model\Task;
+use ProcessMaker\Model\TaskUser;
+use ProcessMaker\Model\User;
+use ProcessMaker\Util\DateTime;
+use Tests\TestCase;
+
+class LightTest extends TestCase
+{
+    private $http;
+    private $baseUri;
+    private $workspace;
+    private $clientId;
+    private $clientSecret;
+    private $user;
+    private $password;
+    private $authorization;
+    private $optionsForConvertDatetime;
+    private $timezone;
+
+    /**
+     * This is using instead of DatabaseTransactions
+     * @todo DatabaseTransactions is having conflicts with propel
+     */
+    protected function setUp()
+    {
+        $this->timezone = config('app.timezone');
+        $_SESSION['USR_TIME_ZONE'] = $this->timezone;
+        $this->baseUri = $this->getBaseUri();
+        $this->workspace = env("DB_DATABASE", "test");
+        $this->clientId = config("oauthClients.pm.clientId");
+        $this->clientSecret = config("oauthClients.pm.clientSecret");
+        $this->user = "admin";
+        $this->password = "admin";
+        $this->createTestSite();
+        $this->http = new Client([
+            "base_uri" => $this->baseUri
+        ]);
+        $this->optionsForConvertDatetime = [
+            'newerThan',
+            'oldestthan',
+            'date',
+            'delegateDate',
+            'dueDate',
+            'delRiskDate'
+        ];
+    }
+
+    /**
+     * Get base uri for rest applications.
+     * @return string
+     */
+    private function getBaseUri()
+    {
+        $_SERVER = $this->getServerInformation();
+        $baseUri = System::getServerProtocolHost();
+
+        return $baseUri;
+    }
+
+    /**
+     * Get server information.
+     * @return object
+     */
+    private function getServerInformation()
+    {
+        $pathData = PATH_DATA . "sites" . PATH_SEP . config("system.workspace") . PATH_SEP . ".server_info";
+        $content = file_get_contents($pathData);
+        $serverInfo = unserialize($content);
+
+        return $serverInfo;
+    }
+
+    /**
+     * This method creates a test workspace so that the endpoints can be functional, 
+     * it is necessary to change the permissions of the directory so that other 
+     * users can access and write to the directory, these users can be for 
+     * example: apache2, www-data, httpd, etc... 
+     * This method finds the license file of the active site and uses it to register 
+     * this license in the LICENSE_MANAGER table. If there is no license file in 
+     * the active workspace, an asersion failure will be notified.
+     */
+    private function createTestSite()
+    {
+        //We copy the license, otherwise you will not be able to lift the site
+        $pathTest = PATH_DATA . "sites" . PATH_SEP . $this->workspace;
+        File::copyDirectory(PATH_DATA . "sites" . PATH_SEP . config("system.workspace"), $pathTest);
+
+        //Write permission for other users for example: apache2, www-data, httpd.
+        passthru('chmod 777 -R ' . $pathTest . ' >> .log 2>&1');
+
+        $installer = new Installer();
+        $options = [
+            'isset' => true,
+            'name' => $this->workspace,
+            'admin' => [
+                'username' => $this->user,
+                'password' => $this->password
+            ],
+            'advanced' => [
+                'ao_db_drop' => true,
+                'ao_db_wf' => $this->workspace,
+                'ao_db_rb' => $this->workspace,
+                'ao_db_rp' => $this->workspace
+            ]
+        ];
+        //The false option creates a connection to the database, necessary to create a site.
+        $installer->create_site($options, false);
+        //Now create site
+        $installer->create_site($options, true);
+
+        //Important so that the dates are stored in the same timezone
+        file_put_contents($pathTest . "/env.ini", "time_zone ='{$this->timezone}'", FILE_APPEND);
+
+        $matchingFiles = File::glob("{$pathTest}/*.dat");
+        $this->assertNotEmpty($matchingFiles);
+
+        //set license
+        $licensePath = array_pop($matchingFiles);
+        DB::Table("LICENSE_MANAGER")->insert([
+            "LICENSE_UID" => G::generateUniqueID(),
+            "LICENSE_USER" => "ProcessMaker Inc",
+            "LICENSE_START" => "1490932800",
+            "LICENSE_END" => 0,
+            "LICENSE_SPAN" => 0,
+            "LICENSE_STATUS" => "ACTIVE",
+            "LICENSE_DATA" => file_get_contents($licensePath),
+            "LICENSE_PATH" => $licensePath,
+            "LICENSE_WORKSPACE" => $this->workspace,
+            "LICENSE_TYPE" => ""
+        ]);
+    }
+
+    /**
+     * Get authorization values.
+     */
+    private function getAuthorization()
+    {
+        $request = $this->http->request("POST", "{$this->workspace}/oauth2/token", [
+            "form_params" => [
+                "grant_type" => "password",
+                "scope" => "*",
+                "client_id" => $this->clientId,
+                "client_secret" => $this->clientSecret,
+                "username" => $this->user,
+                "password" => $this->password
+            ]
+        ]);
+
+        //Here is to verify if the connection to the endpoint was satisfactory, 
+        //so the connection status should be 200.
+        $statusCode = $request->getStatusCode();
+        $this->assertEquals(200, $statusCode);
+
+        //If the endpoint has responded we can obtain the data and verify if it 
+        //is what we expected.
+        $contents = $request->getBody()->getContents();
+        $credentials = json_decode($contents);
+
+        $this->assertNotNull($credentials);
+        $this->assertObjectHasAttribute('access_token', $credentials);
+        $this->assertObjectHasAttribute('expires_in', $credentials);
+        $this->assertObjectHasAttribute('refresh_token', $credentials);
+        $this->assertObjectHasAttribute('scope', $credentials);
+        $this->assertObjectHasAttribute('token_type', $credentials);
+
+        $this->authorization = ucwords($credentials->token_type) . " {$credentials->access_token}";
+    }
+
+    /**
+     * Get current collection list unassigned.
+     * @return collection
+     */
+    private function getCollectionListUnassigned()
+    {
+        //Create process
+        $process = factory(Process::class)->create();
+
+        //Get user
+        $user = User::select()
+                ->where('USR_USERNAME', '=', $this->user)
+                ->first();
+
+        //Create a task self service
+        $task = factory(Task::class)->create([
+            'TAS_ASSIGN_TYPE' => 'SELF_SERVICE',
+            'TAS_GROUP_VARIABLE' => '',
+            'PRO_UID' => $process->PRO_UID
+        ]);
+
+        //Assign a user in the task
+        factory(TaskUser::class, 1)->create([
+            'TAS_UID' => $task->TAS_UID,
+            'USR_UID' => $user->USR_UID,
+            'TU_RELATION' => 1, //Related to the user
+            'TU_TYPE' => 1
+        ]);
+
+        //Create a record in list unassigned
+        $listUnassigned = factory(ListUnassigned::class, 15)->create([
+            'TAS_ID' => $task->TAS_ID,
+            'DEL_PREVIOUS_USR_UID' => $user->USR_UID
+        ]);
+
+        $result = $listUnassigned->sortByDesc('DEL_DELEGATE_DATE');
+
+        return $result;
+    }
+
+    /**
+     * Changes the data to the format returned by REST API.
+     * @param array $collection
+     * @return array
+     */
+    private function normalizeData($collection)
+    {
+        $result = [];
+        $collection->transform(function ($item, $key) use (&$result) {
+            $value = [
+                'caseId' => $item->APP_UID,
+                //The current EndPoint returns this value as a string, an Eloquent 
+                //collection takes into account the string and numeric types.
+                'delIndex' => (string) $item->DEL_INDEX,
+                'task' => [
+                    'taskId' => $item->TAS_UID,
+                    'name' => $item->APP_TAS_TITLE
+                ],
+                'process' => [
+                    'processId' => $item->PRO_UID,
+                    'name' => $item->APP_PRO_TITLE
+                ],
+                //The current EndPoint returns this value as a string, an Eloquent 
+                //collection takes into account the string and numeric types.
+                'caseNumber' => (string) $item->APP_NUMBER,
+                'caseTitle' => $item->APP_TITLE,
+                'date' => $item->APP_UPDATE_DATE->format('Y-m-d H:i:s'),
+                'delegateDate' => $item->DEL_DELEGATE_DATE->format('Y-m-d H:i:s'),
+                'prevUser' => [
+                    'userId' => $item->DEL_PREVIOUS_USR_UID,
+                    'userName' => $item->DEL_PREVIOUS_USR_USERNAME,
+                    'firstName' => $item->DEL_PREVIOUS_USR_FIRSTNAME,
+                    'lastName' => $item->DEL_PREVIOUS_USR_LASTNAME
+                ],
+                'dueDate' => $item->DEL_DUE_DATE->format('Y-m-d H:i:s'),
+            ];
+            $result[] = $value;
+        });
+
+        $converted = DateTime::convertUtcToIso8601($result, $this->optionsForConvertDatetime);
+
+        //Convert the elements to an object
+        $object = json_decode(json_encode($converted));
+
+        return $object;
+    }
+
+    /**
+     * This returns an array of arrays to test the $start and $limit parameters.
+     * The values correspond to the following structure:
+     * [
+     *     [$page, $size, $start, $limit],
+     *     [$page, $size, $start, $limit],
+     *     [$page, $size, $start, $limit],
+     * ]
+     * $page and $size are necessary to test the pages we expect to have from the 
+     * model collection.
+     * @return array
+     */
+    public function pagesProvider()
+    {
+        return [
+            [1, 5, 0, 5],
+            [2, 5, 5, 5],
+            [3, 5, 10, 5],
+            [4, 5, 15, 5],
+            [5, 5, 20, 5],
+            [6, 5, 25, 5]
+        ];
+    }
+
+    /**
+     * This check if the endpoint {workspace}/light/unassigned, is returning all data.
+     * @test
+     * @covers ProcessMaker\Services\Api\Light::doGetCasesListUnassigned
+     */
+    public function it_should_get_all_data_without_start_and_limit_values()
+    {
+        $listUnassigned = $this->getCollectionListUnassigned();
+
+        $this->getAuthorization();
+        $request = $this->http->request("GET", "api/1.0/{$this->workspace}/light/unassigned", [
+            "headers" => [
+                "Authorization" => $this->authorization
+            ]
+        ]);
+
+        //Here is to verify if the connection to the endpoint was satisfactory, 
+        //so the connection status should be 200.
+        $statusCode = $request->getStatusCode();
+        $this->assertEquals(200, $statusCode);
+
+        //If the endpoint has responded we can obtain the data and verify if it 
+        //is what we expected.
+        $expected = $this->normalizeData($listUnassigned);
+        $contents = $request->getBody()->getContents();
+        $content = json_decode($contents);
+
+        $this->assertEquals($expected, $content);
+    }
+
+    /**
+     * This check if the endpoint {workspace}/light/unassigned, is returning the 
+     * requested data set according to the start and limit parameters. The $start 
+     * and $limit test values are obtained from the data provider pagesProvider().
+     * @test
+     * @covers ProcessMaker\Services\Api\Light::doGetCasesListUnassigned
+     * @dataProvider pagesProvider
+     */
+    public function it_should_get_data_with_start_and_limit($page, $size, $start, $limit)
+    {
+        $listUnassigned = $this->getCollectionListUnassigned();
+        $result = $listUnassigned->forPage($page, $size);
+
+        $this->getAuthorization();
+        $request = $this->http->request("GET", "api/1.0/{$this->workspace}/light/unassigned?start={$start}&limit={$limit}", [
+            "headers" => [
+                "Authorization" => $this->authorization
+            ]
+        ]);
+
+        //Here is to verify if the connection to the endpoint was satisfactory, 
+        //so the connection status should be 200.
+        $statusCode = $request->getStatusCode();
+        $this->assertEquals(200, $statusCode);
+
+        //If the endpoint has responded we can obtain the data and verify if it 
+        //is what we expected.
+        $expected = $this->normalizeData($result);
+        $contents = $request->getBody()->getContents();
+        $content = json_decode($contents);
+
+        $this->assertEquals($expected, $content);
+    }
+}
diff --git a/workflow/engine/src/ProcessMaker/Model/ListUnassigned.php b/workflow/engine/src/ProcessMaker/Model/ListUnassigned.php
index aa69c2f3c..7dab112f8 100644
--- a/workflow/engine/src/ProcessMaker/Model/ListUnassigned.php
+++ b/workflow/engine/src/ProcessMaker/Model/ListUnassigned.php
@@ -35,6 +35,14 @@ class ListUnassigned extends Model
         return $this->belongsTo(Process::class, 'PRO_ID', 'PRO_ID');
     }
 
+    /**
+     * Return the user this belongs to
+     */
+    public function previousUser()
+    {
+        return $this->belongsTo(User::class, 'DEL_PREVIOUS_USR_UID', 'USR_UID');
+    }
+
     /**
      * Scope a query to only include specific tasks
      *
@@ -93,7 +101,7 @@ class ListUnassigned extends Model
      * @param array $filters
      *
      * @return array
-    */
+     */
     public static function doCount($userUid, $filters = [])
     {
         $list = new PropelListUnassigned();
@@ -155,4 +163,3 @@ class ListUnassigned extends Model
         return $result;
     }
 }
-
diff --git a/workflow/engine/src/ProcessMaker/Services/Api/Light.php b/workflow/engine/src/ProcessMaker/Services/Api/Light.php
index a1f6a80a3..f59ae6bc5 100644
--- a/workflow/engine/src/ProcessMaker/Services/Api/Light.php
+++ b/workflow/engine/src/ProcessMaker/Services/Api/Light.php
@@ -652,10 +652,11 @@ class Light extends Api
             if (preg_match($this->regexNull, $newerThan)) {
                 return [];
             }
+            $paged = ($start === 0 && $limit === 0) ? false : true;
 
             $dataList['userId'] = $this->getUserId();
             $dataList['action'] = 'unassigned';
-            $dataList['paged'] = false;
+            $dataList['paged'] = $paged;
 
             $dataList['start'] = $start;
             $dataList['limit'] = $limit;
@@ -682,6 +683,9 @@ class Light extends Api
                 /*----------------------------------********---------------------------------*/
             }
             /*----------------------------------********---------------------------------*/
+            if ($paged === true) {
+                $response = $response['data'];
+            }
             $result = $this->parserDataUnassigned($response);
 
             return DateTime::convertUtcToIso8601($result, $this->arrayFieldIso8601);