Hello All,
I have class which is used to fetch attachment and sending an email.I wrote the test class but it is shwoing only 28% code coverage.Can any one please help me to cover this code.
=================class=======================
public class sendEmailtoContact {
 public String subject {
  get;
  set;
 }
 public String body {
  get;
  set;
 }

 private final Account account;
 public List < String > ToemailAddresses = new List < String > ();
 public List < contact > lsc = new List < contact > ();
 public sendEmailtoContact() {}

 public PageReference send() {
  User Usr = new User();
  Usr = [SELECT country FROM User WHERE Id = : UserInfo.getUserId()];
  lsc = [select id, name, Email, CustomDeclarationLetterDE__c, CustomDeclarationLetterUK__c, CustomDeclarationLetterItaly__c, CustomDeclarationLetterFr__c from contact where CustomDeclarationLetterDE__c = true or CustomDeclarationLetterUK__c = true or CustomDeclarationLetterItaly__c = true or CustomDeclarationLetterFr__c = true];
  System.debug('List of contacts retrieved' + lsc);
  List < Messaging.SingleEmailMessage > mails = new List < Messaging.SingleEmailMessage > ();
  for (contact cs: lsc) {
   ToemailAddresses.add(cs.email);
   system.debug('list of ToemailAddresses information' + ToemailAddresses);
   // Define the email      
   Messaging.SingleEmailMessage email = new Messaging.SingleEmailMessage();
   PageReference pdf = Page.CustomDeclarationLetter;
   pdf.getParameters().put('id', cs.id);
   pdf.setRedirect(true);


    // need to pass unit test -- current bug  

   // Take the PDF content
   Blob b = pdf.getContent();
   // Create the email attachment
   String subject1='Long-Term ';
     String Htmlbody= 'test123'
   Messaging.EmailFileAttachment efa = new Messaging.EmailFileAttachment();
   efa.setFileName('CustomDeclarationLetter.pdf');
   efa.setBody(b);
   email.setSubject(subject1);
   email.setOrgWideEmailAddressId('0D2200000004EQx');
    email.setHtmlBody(Htmlbody);
   email.setTargetObjectId(cs.id);
   email.setFileAttachments(new Messaging.EmailFileAttachment[] {efa});

   mails.add(email);
   // Sends the email
   //Based on the current logged in user the respective checkbox will be updated to false   
   if (Usr.country == 'Germany') {
    cs.CustomDeclarationLetterDE__c = false;
   } else if (Usr.country == 'UK') {
    cs.CustomDeclarationLetterUK__c = false;
   } else if (Usr.country == 'Italy') {
    cs.CustomDeclarationLetterItaly__c = false;
   } else {
    cs.CustomDeclarationLetterFr__c = false;

   }
  }
  if (!mails.isEmpty()) {
   Messaging.sendEmail(mails);

   update lsc;
  }


  return null;
 }
}
============class=============================
===========================test class========================================
@isTest
 public class TestsendEmailtoContact{
    public static testMethod  void testSendemailmessageContact()
    {   

        Profile p = [SELECT Id FROM profile WHERE name='System Administrator']; 
        User    u = new User(alias = 'MTstCN', email='newuser@testorg.com', 
                             emailencodingkey='UTF-8', lastname='Testing', languagelocalekey='en_US', 
                             localesidkey='en_US', profileid = p.Id, 
                             timezonesidkey='Europe/Berlin', username='m_tstComplaintNum@tstorg20110329.tst');                                                  
        insert u;
        system.runAs(u){

        //Create an Account of Record Type Customer
        Schema.DescribeSObjectResult da = Schema.SObjectType.Account; 
        Map<String,Schema.RecordTypeInfo> rtAMapByName = da.getRecordTypeInfosByName();
        Schema.RecordTypeInfo rtInfoMInt= rtAMapByName.get('Customer');
        ID accCustomerRTypeID = rtInfoMInt.getRecordTypeId();
        Account a = new Account(Name='M_Tst_ComplaintNumber') ;
        a.OwnerId=u.ID;
        a.RecordTypeID=label.Account_Mauser_Record_TypeID;                         
        insert a;
        system.debug('Account ID:' + a.ID);
        

                   

        Contact ct  = new Contact();
        ct.AccountId=a.ID;
        ct.LastName='Test contact';
        ct.Email='Test@test.com';
        ct.RecordTypeId=Label.Mauser_Contact_Rt;
        ct.Inactive_Contact__c=false;
        insert ct;
        
         email.plainTextBody = 'This should become a note';
       email.fromAddress ='test@test.com';
       String contactEmail = 'jsmith@salesforce.com';
       email.ccAddresses = new String[] {'Jon Smith <' + contactEmail + '>'};
       email.subject = 'Dummy Account Name 123';
       
        PageReference pref = Page.CustomDeclarationLetter;
        pref.getParameters().put('id',ct.id);
        Test.setCurrentPage(pref);

        sendEmailtoContact con = new sendEmailtoContact();    
        //------------------- START TEST-------------------
        Test.startTest();
    // submit the record
    pref = con.send(ct.id);

    Test.stopTest(); 
        }
    }
 }
===============================================test class===================