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test method for controller extensions



I am trying to write an test method for the below controller extension (contact controller extension).

I am finding difficult to start writing this test method....Please help me....i would really appreciate any help..

I have written this to create a mass update , i can select a number of contacts from the view and update the status....


This controller returns the number of selected records...



public class massupdate {

    ApexPages.StandardSetController setApp;

    public massupdate(ApexPages.StandardSetController controller) {
        setApp = controller;
    public integer getMySelectedSize() {
        return setApp.getSelected().size();


thank you


You can use something like below



List<account> accountList = new List<account>();

Accunt a1 = new account(provide values here);

Accunt a2 = new account(provide values here);



insert accountList;

ApexPages.StandardSetController ssc = new ApexPages.StandardSetController(accountList);


then write the normal way of writing a test method