Hi,

I've created Page that will display all Contacts for the Account. Beside each Conact there is a check box. User will check some Contacts and click on Update button. This action will copy Account's address to all selected contacts' addressess. Here is my controller. Now, how do I test it so I have 100% coverage?

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public class TD_ContactsAddressController
{
    List<contactwrapper> contactList = new List<contactwrapper>();
    List<Contact> selectedContacts = new List<Contact>();
    // Sorting
    List<Contact> sortContacts = new List<Contact>();
    public String sortField {get; set;}
    public String previousSortField {get; set;}
   
    //Constructor
    public TD_ContactsAddressController(ApexPages.StandardController controller){
 
    }
       
    public List<contactwrapper> getContacts()
    {
        contactList.clear();
        for(Contact c : [SELECT Name, Title, Email, Phone, Employed_By__c, TD_Use_Account_Address__c from Contact where AccountId = :Apexpages.Currentpage().getparameters().get('Id') ORDER BY Name ASC])
        {           
            sortContacts.add(c);
            System.debug('sortContacts: ' + sortContacts);
            contactList.add(new contactwrapper(c)); 
            System.debug('contactList: ' + contactList);         
        }
       
        if (contactList != null && !contactList.IsEmpty())
        {    return contactList;     }
        {    return null;            }
    }
   
    public PageReference getSelected()
    {
        selectedContacts.clear();
        for(contactwrapper conwrapper : contactList)
        if(conwrapper.selected == true)
        selectedContacts.add(conwrapper.con);
        return null;
    }
   
    public List<Contact> GetSelectedContacts()
    {
        if(selectedContacts.size()>0)
        return selectedContacts;
        else
        return null;
    }   
   
    public class contactwrapper
    {
        public Contact con{get; set;}
        public Boolean selected {get; set;}
        public String ContactURL {get;set;}
        public contactwrapper(Contact c)
        {
            con = c;
           ;
            ContactURL = '/' + c.Id;
        }
    }
   
    //Sorting.
    public void doSort(){
        String order = 'asc';
       
        /*This checks to see if the same header was click two times in a row, if so it switches the order.*/
        if(previousSortField == sortField){
            order = 'desc';
            previousSortField = null;
        }else{
            previousSortField = sortField;
        }
      
        //To sort the table we simply need to use this one line, nice!
        superSort.sortList(sortContacts, sortField, order);
    }   
   
    // Update Contacts
    public PageReference doUpdateAddress(){
        for (Contact c : selectedContacts)
        {
            c.TD_Use_Account_Address__c = true;
        }
       
        try {
          update selectedContacts;         
          }
        catch (DmlException e) {
          ApexPages.addMessages(e);
          }
        return new PageReference('/'+ ApexPages.currentPage().getParameters().get('id'));       
    }
 }

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Thank you!