test class for inserting contacts through the following class - salesforce

Question

I have one apex class which inserts the contacts.i wrote one test class for that where its is passing but the code coverage is zero.can somebody suggest what i missed?
test class:
#isTest
public class TestReferalAccessclass
{
static testMethod void ReferalAccessclassMethod()
{
Test.StartTest();
Contact c=new Contact(FirstName='fname',LastName = 'lname',Email = 'email#gmail.com',Phone = '9743800309');
insert c;
System.AssertNotEquals(Null, c.Id);
Test.StopTest();
}
}
apex class:
public without sharing class ReferalAccessclass {
public String inputID{get; set;}
public String firstName{get; set;}
public String lastName{get; set;}
public String email{get; set;}
public String phone{get; set;}
public Decimal exp{get; set;}
public String location{get; set;}
public contact con{get;set;}
Public attachment objAttachment{get; set;}
public ReferalAccessclass(ApexPages.StandardController controller)
{
objAttachment = new Attachment();
}
public void saveInformation()
{
try{
IF(inputID != 'NULL'){
con = [SELECT ID,Name,FirstName,LastName,Email,Phone,Years_of_Experience__c,Location__c FROM Contact where ID =: inputID ];
con.FirstName = firstName;
con.LastName = lastName;
con.Email = email;
con.Phone = phone;
}
update con;
objAttachment.ParentId = con.id;
Insert objAttachment;
}
catch(exception e){}
ApexPages.Message myMsg = new ApexPages.Message(ApexPages.Severity.FATAL, 'Thank you for your valuable response');
//return null;
}
}

Answer 1

You didn't invoke your actual class from test class. That's why its not giving code coverage. Try this test class.
#isTest public class TestReferalAccessclass {
static testMethod void ReferalAccessclassMethod() {
Contact c=new Contact(
FirstName='fname',
LastName = 'lname',
Email = 'email#gmail.com',
Phone = '9743800309');
insert c;
Test.StartTest();
System.AssertNotEquals(Null, c.Id);
ApexPages.StandardController sc = new ApexPages.StandardController(c);
ReferalAccessclass refClass = new ReferalAccessclass(sc);
refClass.inputID = c.id;
refClass.firstName = c.id;
refClass.lastName = c.id;
refClass.email = c.id;
refClass.phone = c.id;
refClass.con = c;
refClass.saveInformation();
Test.StopTest();
}
}