diff --git a/enrol/lti/tests/data_connector_test.php b/enrol/lti/tests/data_connector_test.php
index c8449986781..b01009e6c67 100644
--- a/enrol/lti/tests/data_connector_test.php
+++ b/enrol/lti/tests/data_connector_test.php
@@ -1104,4 +1104,131 @@ class enrol_lti_data_connector_testcase extends advanced_testcase {
         $this->assertNull($user->created);
         $this->assertNull($user->updated);
     }
+
+    /**
+     * Test for data_connector::get_contexts_from_consumer().
+     */
+    public function test_get_contexts_from_consumer() {
+        $dc = new data_connector();
+        $consumer = new ToolConsumer(null, $dc);
+        $consumer->name = 'testconsumername';
+        $consumer->setKey('TestKey');
+        $consumer->secret = 'testsecret';
+        $consumer->save();
+
+        $settings = ['a', 'b', 'c'];
+        $lticontextid = 'testlticontextid';
+        $context = Context::fromConsumer($consumer, $lticontextid);
+        $context->settings = $settings;
+        $context->save();
+        $dc->loadContext($context);
+
+        $consumer2 = new ToolConsumer(null, $dc);
+        $consumer2->name = 'testconsumername2';
+        $consumer2->setKey('TestKey2');
+        $consumer2->secret = 'testsecret2';
+        $consumer2->save();
+
+        $context2 = Context::fromConsumer($consumer2, $lticontextid . '2');
+        $context2->settings = $settings;
+        $consumer2->save();
+
+        $contexts = $dc->get_contexts_from_consumer($consumer);
+        $this->assertCount(1, $contexts);
+        $this->assertEquals($context, $contexts[0]);
+    }
+
+    /**
+     * Test for data_connector::get_consumers_mapped_to_tool().
+     */
+    public function test_get_consumers_mapped_to_tool() {
+        $generator = $this->getDataGenerator();
+        // Create two tools belonging to the same course.
+        $course1 = $generator->create_course();
+        $data = new stdClass();
+        $data->courseid = $course1->id;
+        $tool = $generator->create_lti_tool($data);
+        $tool2 = $generator->create_lti_tool($data);
+
+        $dc = new data_connector();
+        $consumer = new ToolConsumer('key1', $dc);
+        $consumer->name = 'testconsumername';
+        $consumer->secret = 'testsecret';
+        $consumer->save();
+
+        $tp = new \enrol_lti\tool_provider($tool->id);
+        $tp->consumer = $consumer;
+        $tp->map_tool_to_consumer();
+
+        $consumer2 = new ToolConsumer('key2', $dc);
+        $consumer2->name = 'testconsumername2';
+        $consumer2->secret = 'testsecret2';
+        $consumer2->save();
+
+        $tp2 = new \enrol_lti\tool_provider($tool2->id);
+        $tp2->consumer = $consumer2;
+        $tp2->map_tool_to_consumer();
+
+        $consumers = $dc->get_consumers_mapped_to_tool($tool->id);
+        $this->assertCount(1, $consumers);
+        $this->assertEquals($consumer, $consumers[0]);
+
+        $consumers2 = $dc->get_consumers_mapped_to_tool($tool2->id);
+        $this->assertCount(1, $consumers2);
+        $this->assertEquals($consumer2, $consumers2[0]);
+    }
+
+    /**
+     * Test for data_connector::get_resourcelink_from_consumer()
+     */
+    public function test_get_resourcelink_from_consumer() {
+        $dc = new data_connector();
+
+        $consumer = new ToolConsumer(null, $dc);
+        $consumer->name = 'TestName';
+        $consumer->setKey('TestKey');
+        $consumer->secret = 'TestSecret';
+        $consumer->save();
+
+        // No ResourceLink associated with the ToolConsumer yet.
+        $this->assertNull($dc->get_resourcelink_from_consumer($consumer));
+
+        // Create and save ResourceLink from ToolConsumer.
+        $resourcelink = ResourceLink::fromConsumer($consumer, 'testresourcelinkid');
+        $resourcelink->save();
+        $dc->loadResourceLink($resourcelink);
+
+        // Assert that the resource link and the one fetched by get_resourcelink_from_consumer() are the same.
+        $this->assertEquals($resourcelink, $dc->get_resourcelink_from_consumer($consumer));
+    }
+
+    /**
+     * Test for data_connector::get_resourcelink_from_context()
+     */
+    public function test_get_resourcelink_from_context() {
+        $dc = new data_connector();
+
+        $consumer = new ToolConsumer(null, $dc);
+        $consumer->name = 'TestName';
+        $consumer->setKey('TestKey');
+        $consumer->secret = 'TestSecret';
+        $consumer->save();
+
+        $settings = ['a', 'b', 'c'];
+        $lticontextid = 'testlticontextid';
+        $context = Context::fromConsumer($consumer, $lticontextid);
+        $context->settings = $settings;
+        $context->save();
+
+        // No ResourceLink associated with the Context yet.
+        $this->assertNull($dc->get_resourcelink_from_context($context));
+
+        // Create and save ResourceLink from the Context.
+        $resourcelink = ResourceLink::fromContext($context, 'testresourcelinkid');
+        $resourcelink->save();
+        $dc->loadResourceLink($resourcelink);
+
+        // Assert that the resource link and the one fetched by get_resourcelink_from_context() are the same.
+        $this->assertEquals($resourcelink, $dc->get_resourcelink_from_context($context));
+    }
 }
diff --git a/enrol/lti/tests/sync_members_test.php b/enrol/lti/tests/sync_members_test.php
new file mode 100644
index 00000000000..f9061bf6d16
--- /dev/null
+++ b/enrol/lti/tests/sync_members_test.php
@@ -0,0 +1,400 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Tests for the sync_members scheduled task class.
+ *
+ * @package enrol_lti
+ * @copyright 2016 Jun Pataleta <jun@moodle.com>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+use enrol_lti\data_connector;
+use enrol_lti\helper;
+use enrol_lti\task\sync_members;
+use enrol_lti\tool_provider;
+use IMSGlobal\LTI\ToolProvider\Context;
+use IMSGlobal\LTI\ToolProvider\ResourceLink;
+use IMSGlobal\LTI\ToolProvider\ToolConsumer;
+use IMSGlobal\LTI\ToolProvider\User;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Tests for the sync_members scheduled task class.
+ *
+ * @package enrol_lti
+ * @copyright 2016 Jun Pataleta <jun@moodle.com>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class sync_members_testcase extends advanced_testcase {
+    /** @var dummy_sync_members_task $task */
+    protected $task;
+
+    /** @var  stdClass $tool The published tool. */
+    protected $tool;
+
+    /** @var User[] $members */
+    protected $members;
+
+    /** @var  ToolConsumer $consumer */
+    protected $consumer;
+
+    /** @var  Context $context */
+    protected $context;
+
+    /** @var  ResourceLink $resourcelink */
+    protected $resourcelink;
+
+    public function setUp() {
+        $this->resetAfterTest();
+
+        // Set this user as the admin.
+        $this->setAdminUser();
+
+        $this->task = new dummy_sync_members_task();
+
+        $generator = $this->getDataGenerator();
+        $course = $generator->create_course();
+        $tooldata = [
+            'courseid' => $course->id,
+            'membersyncmode' => helper::MEMBER_SYNC_ENROL_AND_UNENROL,
+            'membersync' => 1,
+        ];
+        $tool = $generator->create_lti_tool((object)$tooldata);
+        $this->tool = helper::get_lti_tool($tool->id);
+
+        $dataconnector = $this->task->get_dataconnector();
+        $this->consumer = new ToolConsumer('Consumer1Key', $dataconnector);
+        $this->consumer->name = 'Consumer1';
+        $this->consumer->secret = 'Consumer1Secret';
+        $this->consumer->save();
+
+        $toolprovider = new tool_provider($this->tool->id);
+        $toolprovider->consumer = $this->consumer;
+        $toolprovider->map_tool_to_consumer();
+
+        $imageurl = $this->getExternalTestFileUrl('test.jpg');
+        $count = 10;
+        $this->members = [];
+        for ($i = 1; $i <= $count; $i++) {
+            $user = new User();
+            $user->firstname = 'Firstname' . $i;
+            $user->lastname = 'Lastname' . $i;
+            $user->ltiUserId = 'user' . $i;
+            // Set user image values for some users.
+            if ($i % 3 == 0) {
+                $user->image = $imageurl;
+            }
+            $this->members[] = $user;
+        }
+
+        $this->context = Context::fromConsumer($this->consumer, 'testlticontextid');
+        $this->context->save();
+
+        $this->resourcelink = ResourceLink::fromContext($this->context, 'testresourcelinkid');
+        $this->resourcelink->save();
+    }
+
+    /**
+     * Test for sync_members::do_context_membership_request().
+     */
+    public function test_do_context_membership_request() {
+        // Suppress output.
+        ob_start();
+        $members = $this->task->do_context_membership_request($this->context);
+        ob_end_clean();
+        $this->assertFalse($members);
+    }
+
+    /**
+     * Test for sync_members::do_resourcelink_membership_request().
+     */
+    public function test_do_resourcelink_membership_request() {
+        $members = $this->task->do_resourcelink_membership_request($this->resourcelink);
+        $this->assertFalse($members);
+    }
+
+    /**
+     * Test for sync_members::execute() when auth_lti is disabled.
+     */
+    public function test_execute_authdisabled() {
+        ob_start();
+        $this->task->execute();
+        $output = ob_get_clean();
+        $message = 'Skipping task - ' . get_string('pluginnotenabled', 'auth', get_string('pluginname', 'auth_lti'));
+        $this->assertContains($message, $output);
+    }
+
+    /**
+     * Test for sync_members::execute() when enrol_lti is disabled.
+     */
+    public function test_execute_enroldisabled() {
+        // Enable auth_lti.
+        $this->enable_auth();
+
+        ob_start();
+        $this->task->execute();
+        $output = ob_get_clean();
+        $message = 'Skipping task - ' . get_string('enrolisdisabled', 'enrol_lti');
+        $this->assertContains($message, $output);
+    }
+
+    /**
+     * Test for sync_members::execute().
+     */
+    public function test_execute() {
+        // Enable auth_lti.
+        $this->enable_auth();
+
+        // Enable enrol_lti.
+        $this->enable_enrol();
+
+        ob_start();
+        $this->task->execute();
+        $output = ob_get_clean();
+
+        $membersyncmessage = "Completed - Synced members for tool '{$this->tool->id}' in the course '{$this->tool->courseid}'";
+        $this->assertContains($membersyncmessage, $output);
+
+        $imagesyncmessage = "Completed - Synced 0 profile images.";
+        $this->assertContains($imagesyncmessage, $output);
+    }
+
+    /**
+     * Test for sync_members::fetch_members_from_consumer() with no resource link nor context associated with the consumer.
+     */
+    public function test_fetch_members_from_consumer_noresourcelink_nocontext() {
+        // Suppress output.
+        ob_start();
+        $members = $this->task->fetch_members_from_consumer($this->consumer);
+        ob_end_clean();
+        $this->assertFalse($members);
+    }
+
+    /**
+     * Test for sync_members::get_name().
+     */
+    public function test_get_name() {
+        $this->assertEquals(get_string('tasksyncmembers', 'enrol_lti'), $this->task->get_name());
+    }
+
+    /**
+     * Test for sync_members::should_sync_enrol().
+     */
+    public function test_should_sync_enrol() {
+        $this->assertTrue($this->task->should_sync_enrol(helper::MEMBER_SYNC_ENROL_AND_UNENROL));
+        $this->assertTrue($this->task->should_sync_enrol(helper::MEMBER_SYNC_ENROL_NEW));
+        $this->assertFalse($this->task->should_sync_enrol(helper::MEMBER_SYNC_UNENROL_MISSING));
+    }
+
+    /**
+     * Test for sync_members::should_sync_unenrol().
+     */
+    public function test_should_sync_unenrol() {
+        $this->assertTrue($this->task->should_sync_unenrol(helper::MEMBER_SYNC_ENROL_AND_UNENROL));
+        $this->assertFalse($this->task->should_sync_unenrol(helper::MEMBER_SYNC_ENROL_NEW));
+        $this->assertTrue($this->task->should_sync_unenrol(helper::MEMBER_SYNC_UNENROL_MISSING));
+    }
+
+    /**
+     * Test for sync_members::sync_member_information().
+     */
+    public function test_sync_member_information() {
+        list($totalcount, $enrolledcount) = $this->task->sync_member_information($this->tool, $this->consumer, $this->members);
+        $membercount = count($this->members);
+        $this->assertCount(10, $this->members);
+        $this->assertEquals($membercount, $totalcount);
+        $this->assertEquals($membercount, $enrolledcount);
+    }
+
+    /**
+     * Test for sync_members::sync_profile_images().
+     */
+    public function test_sync_profile_images() {
+        $task = $this->task;
+        list($totalcount, $enrolledcount) = $task->sync_member_information($this->tool, $this->consumer, $this->members);
+        $membercount = count($this->members);
+        $this->assertCount(10, $this->members);
+        $this->assertEquals($membercount, $totalcount);
+        $this->assertEquals($membercount, $enrolledcount);
+
+        // Suppress output.
+        ob_start();
+        $this->assertEquals(3, $task->sync_profile_images());
+        ob_end_clean();
+    }
+
+    /**
+     * Test for sync_members::sync_unenrol().
+     */
+    public function test_sync_unenrol() {
+        $tool = $this->tool;
+        $task = $this->task;
+
+        $task->sync_member_information($tool, $this->consumer, $this->members);
+
+        // Simulate that the fetched list of current users has been reduced by 3.
+        $unenrolcount = 3;
+        for ($i = 0; $i < $unenrolcount; $i++) {
+            $task->pop_current_users();
+        }
+        $this->assertEquals($unenrolcount, $task->sync_unenrol($tool));
+    }
+
+    /**
+     * Enable auth_lti plugin.
+     */
+    protected function enable_auth() {
+        $auths = get_enabled_auth_plugins(true);
+        if (!in_array('lti', $auths)) {
+            $auths[] = 'lti';
+        }
+        set_config('auth', implode(',', $auths));
+    }
+
+    /**
+     * Enable enrol_lti plugin.
+     */
+    protected function enable_enrol() {
+        $enabled = enrol_get_plugins(true);
+        $enabled['lti'] = true;
+        $enabled = array_keys($enabled);
+        set_config('enrol_plugins_enabled', implode(',', $enabled));
+    }
+}
+
+/**
+ * Class dummy_sync_members_task.
+ *
+ * A class that extends sync_members so that we can expose the protected methods that we would like to test.
+ *
+ * @copyright 2016 Jun Pataleta <jun@moodle.com>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class dummy_sync_members_task extends sync_members {
+    /**
+     * Exposes/generates the dataconnector property.
+     *
+     * @return data_connector
+     */
+    public function get_dataconnector() {
+        if (!$this->dataconnector) {
+            $this->dataconnector = new data_connector();
+        }
+        return $this->dataconnector;
+    }
+
+    /**
+     * Helper method that removes an element in the array of current users.
+     */
+    public function pop_current_users() {
+        array_pop($this->currentusers);
+    }
+
+    /**
+     * Exposes sync_members::do_context_membership_request()
+     *
+     * @param Context $context The context object.
+     * @param ResourceLink $resourcelink The resource link object.
+     * @param string $membershipsurltemplate The memberships endpoint URL template.
+     * @return bool|User[] Array of User objects upon successful membership service request. False, otherwise.
+     */
+    public function do_context_membership_request(Context $context, ResourceLink $resourcelink = null,
+                                                  $membershipsurltemplate = '') {
+        $members = parent::do_context_membership_request($context, $resourcelink, $membershipsurltemplate);
+        return $members;
+    }
+
+
+    /**
+     * Exposes sync_members::do_resourcelink_membership_request()
+     *
+     * @param ResourceLink $resourcelink
+     * @return bool|User[]
+     */
+    public function do_resourcelink_membership_request(ResourceLink $resourcelink) {
+        $members = parent::do_resourcelink_membership_request($resourcelink);
+        return $members;
+    }
+
+    /**
+     * Exposes sync_members::fetch_members_from_consumer()
+     *
+     * @param ToolConsumer $consumer
+     * @return bool|User[]
+     */
+    public function fetch_members_from_consumer(ToolConsumer $consumer) {
+        $members = parent::fetch_members_from_consumer($consumer);
+        return $members;
+    }
+
+    /**
+     * Exposes sync_members::should_sync_unenrol()
+     *
+     * @param int $syncmode The tool's membersyncmode.
+     * @return bool
+     */
+    public function should_sync_unenrol($syncmode) {
+        $shouldsync = parent::should_sync_unenrol($syncmode);
+        return $shouldsync;
+    }
+
+    /**
+     * Exposes sync_members::should_sync_enrol()
+     *
+     * @param int $syncmode The tool's membersyncmode.
+     * @return bool
+     */
+    public function should_sync_enrol($syncmode) {
+        $shouldsync = parent::should_sync_enrol($syncmode);
+        return $shouldsync;
+    }
+
+    /**
+     * Exposes sync_members::sync_member_information()
+     *
+     * @param stdClass $tool
+     * @param ToolConsumer $consumer
+     * @param User[] $members
+     * @return array
+     */
+    public function sync_member_information(stdClass $tool, ToolConsumer $consumer, $members) {
+        $result = parent::sync_member_information($tool, $consumer, $members);
+        return $result;
+    }
+
+    /**
+     * Exposes sync_members::sync_profile_images()
+     *
+     * @return int
+     */
+    public function sync_profile_images() {
+        $count = parent::sync_profile_images();
+        return $count;
+    }
+
+    /**
+     * Exposes sync_members::sync_unenrol()
+     *
+     * @param stdClass $tool
+     * @return int
+     */
+    public function sync_unenrol(stdClass $tool) {
+        $count = parent::sync_unenrol($tool);
+        return $count;
+    }
+}