diff --git a/admin/tool/dataprivacy/tests/privacy_provider_test.php b/admin/tool/dataprivacy/tests/privacy_provider_test.php
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+++ b/admin/tool/dataprivacy/tests/privacy_provider_test.php
@@ -0,0 +1,187 @@
+<?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 plugin privacy provider
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2020 Paul Holden <paulh@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+use core_privacy\local\request\userlist;
+use core_privacy\local\request\writer;
+use core_privacy\tests\provider_testcase;
+use tool_dataprivacy\api;
+use tool_dataprivacy\local\helper;
+use tool_dataprivacy\privacy\provider;
+
+/**
+ * Privacy provider tests
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2020 Paul Holden <paulh@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class tool_dataprivacy_privacy_provider_testcase extends provider_testcase {
+
+    /**
+     * Test provider get_contexts_for_userid method
+     *
+     * @return void
+     */
+    public function test_get_contexts_for_userid() {
+        $this->resetAfterTest();
+
+        $user = $this->getDataGenerator()->create_user();
+        $context = context_user::instance($user->id);
+
+        // Returned context list should contain a single item.
+        $contextlist = $this->get_contexts_for_userid($user->id, 'tool_dataprivacy');
+        $this->assertCount(1, $contextlist);
+
+        // We should have the user context of our test user.
+        $this->assertSame($context, $contextlist->current());
+    }
+
+    /**
+     * Test provider get_users_in_context method
+     *
+     * @return void
+     */
+    public function test_get_users_in_context() {
+        $this->resetAfterTest();
+
+        $user = $this->getDataGenerator()->create_user();
+        $context = context_user::instance($user->id);
+
+        $userlist = new userlist($context, 'tool_dataprivacy');
+        provider::get_users_in_context($userlist);
+
+        $this->assertEquals([$user->id], $userlist->get_userids());
+    }
+
+    /**
+     * Test provider get_users_in_context method for a non-user context
+     *
+     * @return void
+     */
+    public function test_get_users_in_context_non_user_context() {
+        $context = context_system::instance();
+
+        $userlist = new userlist($context, 'tool_dataprivacy');
+        provider::get_users_in_context($userlist);
+
+        $this->assertEmpty($userlist);
+    }
+
+    /**
+     * Test provider export_user_data method
+     *
+     * @return void
+     */
+    public function test_export_user_data() {
+        $this->resetAfterTest();
+
+        $user = $this->getDataGenerator()->create_user();
+        $context = context_user::instance($user->id);
+
+        $this->setUser($user);
+
+        // Create an export request, approve it.
+        $requestexport = api::create_data_request($user->id, api::DATAREQUEST_TYPE_EXPORT,
+            'Please export my stuff');
+        api::update_request_status($requestexport->get('id'), api::DATAREQUEST_STATUS_APPROVED);
+
+        // Create a deletion request, reject it.
+        $requestdelete = api::create_data_request($user->id, api::DATAREQUEST_TYPE_DELETE);
+        api::update_request_status($requestdelete->get('id'), api::DATAREQUEST_STATUS_REJECTED, 0, 'Nope');
+
+        $this->export_context_data_for_user($user->id, $context, 'tool_dataprivacy');
+
+        /** @var \core_privacy\tests\request\content_writer $writer */
+        $writer = writer::with_context($context);
+        $this->assertTrue($writer->has_any_data());
+
+        /** @var stdClass[] $data */
+        $data = (array) $writer->get_data([
+            get_string('privacyandpolicies', 'admin'),
+            get_string('datarequests', 'tool_dataprivacy'),
+        ]);
+
+        $this->assertCount(2, $data);
+
+        $strs = get_strings(['requesttypeexportshort', 'requesttypedeleteshort',
+            'statusapproved', 'statusrejected', 'creationmanual'], 'tool_dataprivacy');
+
+        // First item is the approved export request.
+        $this->assertEquals($strs->requesttypeexportshort, $data[0]->type);
+        $this->assertEquals($strs->statusapproved, $data[0]->status);
+        $this->assertEquals($strs->creationmanual, $data[0]->creationmethod);
+        $this->assertEquals($requestexport->get('comments'), $data[0]->comments);
+        $this->assertEmpty($data[0]->dpocomment);
+        $this->assertNotEmpty($data[0]->timecreated);
+
+        // Next is the rejected deletion request.
+        $this->assertEquals($strs->requesttypedeleteshort, $data[1]->type);
+        $this->assertEquals($strs->statusrejected, $data[1]->status);
+        $this->assertEquals($strs->creationmanual, $data[1]->creationmethod);
+        $this->assertEmpty($data[1]->comments);
+        $this->assertContains('Nope', $data[1]->dpocomment);
+        $this->assertNotEmpty($data[1]->timecreated);
+    }
+
+    /**
+     * Test class export_user_preferences method
+     *
+     * @return void
+     */
+    public function test_export_user_preferences() {
+        $this->resetAfterTest();
+
+        $user = $this->getDataGenerator()->create_user();
+        $this->setUser($user);
+
+        // Set filters preference.
+        $filters = [
+            helper::FILTER_TYPE . ':' . api::DATAREQUEST_TYPE_EXPORT,
+            helper::FILTER_STATUS . ':' . api::DATAREQUEST_STATUS_PENDING,
+        ];
+        set_user_preference(helper::PREF_REQUEST_FILTERS, json_encode($filters), $user);
+
+        // Set paging preference.
+        set_user_preference(helper::PREF_REQUEST_PERPAGE, 6, $user);
+
+        provider::export_user_preferences($user->id);
+
+        /** @var \core_privacy\tests\request\content_writer $writer */
+        $writer = writer::with_context(context_system::instance());
+        $this->assertTrue($writer->has_any_data());
+
+        /** @var stdClass[] $preferences */
+        $preferences = (array) $writer->get_user_preferences('tool_dataprivacy');
+        $this->assertCount(2, $preferences);
+
+        $this->assertEquals((object) [
+            'value' => '1:1, 2:0',
+            'description' => 'Type: Export, Status: Pending',
+        ], $preferences[helper::PREF_REQUEST_FILTERS]);
+
+        $this->assertEquals(6, $preferences[helper::PREF_REQUEST_PERPAGE]->value);
+    }
+}
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