public function testAppendExtraFieldsToQuery()
 {
     $list = new ManyManyList('ManyManyListTest_ExtraFields', 'ManyManyListTest_ExtraFields_Clients', 'ManyManyListTest_ExtraFieldsID', 'ChildID', array('Worth' => 'Money', 'Reference' => 'Varchar'));
     // ensure that ManyManyListTest_ExtraFields_Clients.ValueCurrency is
     // selected.
     $db = DB::get_conn();
     $expected = 'SELECT DISTINCT "ManyManyListTest_ExtraFields_Clients"."WorthCurrency",' . ' "ManyManyListTest_ExtraFields_Clients"."WorthAmount", "ManyManyListTest_ExtraFields_Clients"."Reference",' . ' "ManyManyListTest_ExtraFields"."ClassName", "ManyManyListTest_ExtraFields"."LastEdited",' . ' "ManyManyListTest_ExtraFields"."Created", "ManyManyListTest_ExtraFields"."ID",' . ' CASE WHEN "ManyManyListTest_ExtraFields"."ClassName" IS NOT NULL THEN' . ' "ManyManyListTest_ExtraFields"."ClassName" ELSE ' . Convert::raw2sql('ManyManyListTest_ExtraFields', true) . ' END AS "RecordClassName" FROM "ManyManyListTest_ExtraFields" INNER JOIN' . ' "ManyManyListTest_ExtraFields_Clients" ON' . ' "ManyManyListTest_ExtraFields_Clients"."ManyManyListTest_ExtraFieldsID" =' . ' "ManyManyListTest_ExtraFields"."ID"';
     $this->assertSQLEquals($expected, $list->sql($parameters));
 }