/**
     * IMS docs cannot have an empty start-date if it has a non-zero end-date
     * @expectedException     Exception
     * @expectedExceptionMessage UAIMS: Course Creation without valid start or end date
     */
    public function test_process_imsdoc_cant_lack_startdate()
    {
        global $DB, $CFG;
        $this->resetAfterTest(true);
        $xmldoc2 = <<<DOC2
<?xml version="1.0" encoding="utf-8"?>
<enterprise xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<group recstatus="1"> <sourcedid> <source>AIS</source> <id>IDNUMBER</id> </sourcedid>
<grouptype> <typevalue>Course</typevalue> </grouptype>
<description> <short>IDNUMBER</short> <long>Long description2</long> </description>
<org /> <timeframe> <end>2430816400</end> </timeframe> <enrollcontrol />
<relationship> <sourcedid> <source>AIS</source> <id>UOFAB-TEST</id> </sourcedid> </relationship>
<extension> <settings> <setting>visible</setting> <value>0</value> </settings>
<settings> <setting>format</setting> <value>topics</value> </settings> </extension>  </group></enterprise>
DOC2;
        $enrol = new enrol_uaims_plugin();
        $oldsetting = $enrol->get_config('enableqrvisibilitytoggle');
        // Enable updates from UAIMS documents.
        $enrol->set_config('enableqrvisibilitytoggle', true);
        $category = new stdClass();
        $category->name = "test";
        $category->description = "UOFAB-TEST";
        $category->idnumber = "UOFAB-TEST";
        $category->timemodified = time();
        $DB->insert_record('course_categories', $category);
        // Process missing start date.
        $enrol->process_imsdoc($xmldoc2);
        if ($oldsetting) {
            $enrol->set_config('enableqrvisibilitytoggle', $oldsetting);
        }
    }