Get Started with Apex Unit Tests

Get Started with Apex Unit Tests from (module - Apex Testing)

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Name: TestVerifyDate

@isTest
public class TestVerifyDate
{
    static testMethod void testMethod1()
    {
        Date d = VerifyDate.CheckDates(System.today(),System.today()+1);
        Date d1 = VerifyDate.CheckDates(System.today(),System.today()+60);
    } }