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DDayDDay 

Test method for List<SelectOption>

Hello,
 
I have a method that returns a List<SelectOption> containing a list of months to be used in a menu on a VF page. I'm still new to writing Apex code and I can't figure out what the correct way to write the test method for this is. If I run tests on the following code I get this error:
 
 
System.Exception: Assertion Failed: Expected: (System.SelectOption[value="01", label="Jan", disabled="false"], System.SelectOption[value="02", label="Feb", disabled="false"], System.SelectOption[value="03", label="Mar", disabled="false"], System.SelectOption[value="04", label="Apr", disabled="false"], System.SelectOption[value="05", label="May", disabled="false"], System.SelectOption[value="06", label="Jun", disabled="false"], System.SelectOption[value="07", label="Jul", disabled="false"], System.SelectOption[value="08", label="Aug", disabled="false"], System.SelectOption[value="09", label="Sep", disabled="false"], System.SelectOption[value="10", label="Oct", disabled="false"], ...), Actual: (System.SelectOption[value="01", label="Jan", disabled="false"], System.SelectOption[value="02", label="Feb", disabled="false"], System.SelectOption[value="03", label="Mar", disabled="false"], System.SelectOption[value="04", label="Apr", disabled="false"], System.SelectOption[value="05", label="May", disabled="false"], System.SelectOption[value="06", label="Jun", disabled="false"], System.SelectOption[value="07", label="Jul", disabled="false"], System.SelectOption[value="08", label="Aug", disabled="false"], System.SelectOption[value="09", label="Sep", disabled="false"], System.SelectOption[value="10", label="Oct", disabled="false"], ...)
 
 
public class Months {
    public List<SelectOption> getMonthList() {
        List<SelectOption> options = new List<SelectOption>();
		options.add(new SelectOption('01', 'Jan'));
		options.add(new SelectOption('02', 'Feb'));
		options.add(new SelectOption('03', 'Mar'));
		options.add(new SelectOption('04', 'Apr'));
		options.add(new SelectOption('05', 'May'));
		options.add(new SelectOption('06', 'Jun'));
		options.add(new SelectOption('07', 'Jul'));
		options.add(new SelectOption('08', 'Aug'));
		options.add(new SelectOption('09', 'Sep'));
		options.add(new SelectOption('10', 'Oct'));
		options.add(new SelectOption('11', 'Nov'));
		options.add(new SelectOption('12', 'Dec'));
        return options;
    }
 
   static testMethod void testMonthList() {
        List<SelectOption> test_options = new List<SelectOption>();
		test_options.add(new SelectOption('01', 'Jan'));
		test_options.add(new SelectOption('02', 'Feb'));
		test_options.add(new SelectOption('03', 'Mar'));
		test_options.add(new SelectOption('04', 'Apr'));
		test_options.add(new SelectOption('05', 'May'));
		test_options.add(new SelectOption('06', 'Jun'));
		test_options.add(new SelectOption('07', 'Jul'));
		test_options.add(new SelectOption('08', 'Aug'));
		test_options.add(new SelectOption('09', 'Sep'));
		test_options.add(new SelectOption('10', 'Oct'));
		test_options.add(new SelectOption('11', 'Nov'));
		test_options.add(new SelectOption('12', 'Dec'));
 
		Months my_months = new Months();
		List<SelectOption> method_options = my_months.getMonthList();
 
		system.assertEquals(method_options, test_options);
    }
}
 
I copied/pasted the 'expected' and 'actual' responses to a text editor and they look identical to me. Is there another way I should be writing this test?
 
Thanks,
Dan 
 
 
 
 


Best Answer chosen by Admin (Salesforce Developers) 
AlsoDougAlsoDoug
Dan,
 
I don't think assertEquals works with lists/arrays/etc only basic data types.  
 
From the apex language reference doc the arguments types are AnyDataType (which I think is just String, Boolean etc).
 
My best practice on testing what you have would be make sure both lists are the same size (fail if not) and then loop checking the nth element in each list misc element against each other 
 
IE (not real code of course) 

//start of test

system.assertEquals(method_options.size(), test_options.size());

if( method_options.size() == test_options.size() ){
     //do a for loop
         //in loop assert each data element in the select option equals the other
 

 
Sorry would have offered more but should be enough to get you started. 
Message Edited by AlsoDoug on  06-30-2009 06:14 PM


All Answers
AlsoDougAlsoDoug
Dan,
 
I don't think assertEquals works with lists/arrays/etc only basic data types.  
 
From the apex language reference doc the arguments types are AnyDataType (which I think is just String, Boolean etc).
 
My best practice on testing what you have would be make sure both lists are the same size (fail if not) and then loop checking the nth element in each list misc element against each other 
 
IE (not real code of course) 

//start of test

system.assertEquals(method_options.size(), test_options.size());

if( method_options.size() == test_options.size() ){
     //do a for loop
         //in loop assert each data element in the select option equals the other
 

 
Sorry would have offered more but should be enough to get you started. 
Message Edited by AlsoDoug on  06-30-2009 06:14 PM
This was selected as the best answer
DDayDDay
That was exactly what I needed, thanks for push in the right direction! 
 
Sincerely, 
Dan 


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