--- /dev/null
+<?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/>.
+
+/**
+ * Calendar lib unit tests
+ *
+ * @package core_calendar
+ * @copyright 2013 Dan Poltawski <dan@moodle.com>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+global $CFG;
+require_once($CFG->dirroot . '/calendar/lib.php');
+
+/**
+ * Unit tests for calendar lib
+ *
+ * @package core_calendar
+ * @copyright 2013 Dan Poltawski <dan@moodle.com>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class core_calendar_lib_testcase extends advanced_testcase {
+
+ public function test_calendar_get_course_cached() {
+ $this->resetAfterTest(true);
+
+ // Setup some test courses.
+ $course1 = $this->getDataGenerator()->create_course();
+ $course2 = $this->getDataGenerator()->create_course();
+ $course3 = $this->getDataGenerator()->create_course();
+
+ // Load courses into cache.
+ $coursecache = null;
+ calendar_get_course_cached($coursecache, $course1->id);
+ calendar_get_course_cached($coursecache, $course2->id);
+ calendar_get_course_cached($coursecache, $course3->id);
+
+ // Verify the cache.
+ $this->assertArrayHasKey($course1->id, $coursecache);
+ $cachedcourse1 = $coursecache[$course1->id];
+ $this->assertEquals($course1->id, $cachedcourse1->id);
+ $this->assertEquals($course1->shortname, $cachedcourse1->shortname);
+ $this->assertEquals($course1->fullname, $cachedcourse1->fullname);
+
+ $this->assertArrayHasKey($course2->id, $coursecache);
+ $cachedcourse2 = $coursecache[$course2->id];
+ $this->assertEquals($course2->id, $cachedcourse2->id);
+ $this->assertEquals($course2->shortname, $cachedcourse2->shortname);
+ $this->assertEquals($course2->fullname, $cachedcourse2->fullname);
+
+ $this->assertArrayHasKey($course3->id, $coursecache);
+ $cachedcourse3 = $coursecache[$course3->id];
+ $this->assertEquals($course3->id, $cachedcourse3->id);
+ $this->assertEquals($course3->shortname, $cachedcourse3->shortname);
+ $this->assertEquals($course3->fullname, $cachedcourse3->fullname);
+ }
+}