Hi Ivar

Thanks for your reply. The test coverage is still the same. This is my full code.

public class SendEmailClass{

	public Opportunity oppr {get;set;}
	Account Acc;
	Contact con;
	Contact con2;
	User usr;
	OpportunityContactRole cRole;
	EmailTemplate Quote;
	EmailTemplate Invoice;
	RecordType r1;
	RecordType r2;
	RecordType r3;
	String SearchFrom;
	String SearchTo;
	String SearchUserEmail;
	String SearchCC;
	String SearchBCC;
	String SearchSubject;
	String SearchSubject1;
	String SearchBody;
	String SearchBody1;
	String str = '';
	string str1 = '';
	String str2 = '';
	public String view='';
	
	
	
       
	public SendEmailClass(ApexPages.StandardController Controller){
		
		
		Oppr = [select Name,Id,contact__c,AccountId,Owner.FirstName,Invoice_Number__c,Quote_Number__c,Quote_Version__c,CreatedBy.Id from Opportunity where Id=:ApexPages.currentPage().getParameters().get('id')];
        System.Debug('Opportunity Name is: '+Oppr.Name);
        usr = [Select Name,Id,Email from User where Id =:UserInfo.getUserId()];
                               
        Quote = [Select id,Subject,Body from EmailTemplate where id=:'00XP0000000LzHL'];
        System.Debug('Template Subject Is: '+Quote.Subject);
        Invoice = [Select id,Subject,Body from EmailTemplate where id=:'00XP0000000LzHV'];
        
        Acc = [Select Name,Id,PersonEmail,RecordTypeId from Account where Id=:oppr.AccountId];
        
        r1 = [Select Id from RecordType where SobjectType = 'Account' and Name = 'Business Account' Limit 1];
        r2 = [Select Id from RecordType where SobjectType = 'Account' and Name = 'Competitive' Limit 1];
        r3 = [Select Id from RecordType where SobjectType = 'Account' and Name = 'Person Account' Limit 1];
        
		if(Acc.RecordTypeId == r3.Id){
			try
			{
		con =[Select Name, Id,AccountId,Email from contact where AccountId=:Acc.Id];
		}catch(exception ex){
            ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.ERROR,'Please Add a contact Email to this Opportunity'+ex));
            }
		}
		
		if(Acc.RecordTypeId == r1.Id || Acc.RecordTypeId == r2.Id){
			try
			{
			cRole = [Select ContactId from OpportunityContactRole where OpportunityId=:Oppr.Id and IsPrimary=:True Limit 1];
			con2 = [Select Name, Id,AccountId,Email from contact where Id=:Crole.ContactId];
			}catch(exception ex){
            ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.ERROR,'Please Add a contact Role to this Opportunity'+ex));
            
            }
		}
			
		if(Acc.RecordTypeId == r3.Id){
			try
			{
		view = 'False';	
		SearchTo = con.Email;
		str = con.Name;
		}catch(exception ex){
            ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.ERROR,'Please Add a contact Email to this Opportunity'+ex));
            }
		}
		else{
			try{		
		view = 'True';	
		SearchTo = con2.Email;
		Oppr.Contact__c=Con2.Id;
		str = con2.Name;
		}catch(exception ex){
            ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.ERROR,'Please Add a contact Role to this Opportunity'+ex));
            }				
		}
		
		SearchFrom = usr.Email;
		SearchBCC = usr.Email;
		SearchSubject = Quote.Subject +' ' + Oppr.Quote_Number__c+'-'+ Oppr.Quote_Version__c + '.pdf';
		SearchSubject1 = Invoice.Subject + ' ' + Oppr.Invoice_Number__c + '.pdf';
		SearchBody = 'Dear' + '\n' + str + '\n' + '\n' + Quote.Body + '\n' + '\n' + 'Regards' + '\n' + usr.Name;
		SearchBody1 = 'Dear' + '\n' + str + '\n' + '\n' + Invoice.body + '\n' + '\n' + 'Regards' + '\n' + usr.Name;
			
	}
	
	public String getview(){
		return this.view;
	}
    
	public String getSearchFrom() {
    	return this.SearchFrom;
    }
    
    
    public void setSearchFrom(String Search) {    	
    	this.SearchFrom=Search;	
    }
    
    public String getSearchTo() {
    	return this.SearchTo;
    }
    
    public void setSearchTo(String Search) {    	
    	this.SearchTo=Search;	
    }
    
    public String getSearchUserEmail() {
    	return this.SearchUserEmail;
    }
    
    public void setSearchUserEmail(String Search) {    	
    	this.SearchUserEmail=Search;	
    }
    
    public String getSearchCC() {
    	return this.SearchCC;
    }
    
    public void setSearchCC(String Search) {    	
    	this.SearchCC=Search;	
    }
    
    public String getSearchBCC() {
    	return this.SearchBCC;
    }
    
    public void setSearchBCC(String Search) {    	
    	this.SearchBCC=Search;	
    }
    
    public String getSearchSubject() {
    	return this.SearchSubject;
    }
    
    public void setSearchSubject(String Search) {    	
    	this.SearchSubject=Search;
    }
    	
    public String getSearchSubject1(){
    	return this.SearchSubject1;
    }
    
    public void setSearchSubject1(String Search) {    	
    	this.SearchSubject1=Search;	
    		
    }
    
    public String getSearchBody() {
    	return this.SearchBody;
    }
    
    public void setSearchBody(String Search) {    	
    	this.SearchBody=Search;	
    }
    
    public String getSearchBody1() {
    	return this.SearchBody1;
    }
    
    public void setSearchBody1(String Search) {    	
    	this.SearchBody1=Search;	
    }
    
   public PageReference EmailQuote(){
   	
   	try
    {
    
      PageReference pcd = Page.esc_Quote;
      pcd.getParameters().put('id',Oppr.id);
      Blob pdfBlob = pcd.getContent();
                  
      Messaging.SingleEmailMessage email = new Messaging.SingleEmailMessage();      
      String [] toAddresses = new String[] {SearchTo};
      String [] toCC = new String[] {SearchCC};
      String [] toBCC = new String[] {SearchBCC};
	  str1=SearchBody.replaceAll('\n','<br/>');
	  
      if(Acc.RecordTypeId == r1.Id || Acc.RecordTypeId == r2.Id){
      	Contact cc=[select id,name,Email from contact where id=:oppr.contact__c];
      	      if(cc.Email != null){     
		      email.setTargetObjectId(cc.Id);
		      email.setSubject(SearchSubject);
		      email.setHtmlBody(str1);
		      
		      if(SearchCC!=''){
		      email.setCcAddresses(toCC);
		      }
		      if(SearchBCC!=''){
		      email.setBccAddresses(toBCC);
		      }
		      email.setSaveAsActivity(true);
		      		      
		      	  // Create an email attachment
			      Messaging.EmailFileAttachment efa = new Messaging.EmailFileAttachment();
			      efa.setFileName('ES_'+ Oppr.Quote_Number__c+'-'+ Oppr.Quote_Version__c + '.pdf'); 
			      efa.setBody(pdfBlob); //attach the PDF
			      email.setFileAttachments(new Messaging.EmailFileAttachment[] {efa});
			      
			        //Create an event.
			        Task myTask = new Task();
			        myTask.WhatId = Oppr.Id;
			        myTask.WhoId = cc.Id;
			        myTask.IsReminderSet = true;
			        myTask.ReminderDateTime = System.Today();
			        myTask.ActivityDate = System.Today();
			        myTask.Description = SearchBody;
			        myTask.Subject = SearchSubject;
			        myTask.OwnerId = Usr.Id;
			        myTask.Status = 'Completed';
			        
			        Insert myTask;			      	      		
		      }
		      
		      else{
		        email.setSaveAsActivity(false);	
		        email.setTargetObjectId(usr.Id);
		        email.setSubject('No Email to send the Quotation');
		        email.setHtmlBody('Dear '+usr.Name+', No Email ID found into the Contact to send the Quotation.');
		      }  
		      
      }
      
      if(Acc.RecordTypeId == r3.Id){
		  	  
		  		//email.setTargetObjectId(Con.Id);
		        email.setSubject(SearchSubject);
		        email.setHtmlBody(str1);
		        
		      	email.setToAddresses(toAddresses);
		     	
		      	if(SearchCC!=''){
		      	email.setCcAddresses(toCC);
		      	}
		      	if(SearchBCC!=''){
		      	email.setBccAddresses(toBCC);
		      	}
		        email.setSaveAsActivity(true);
		        
		          //Create an email attachment
			      Messaging.EmailFileAttachment efa = new Messaging.EmailFileAttachment();
			      efa.setFileName('ES_'+ Oppr.Quote_Number__c+'-'+ Oppr.Quote_Version__c + '.pdf'); 
			      efa.setBody(pdfBlob); //attach the PDF
			      email.setFileAttachments(new Messaging.EmailFileAttachment[] {efa});
			      
			      //Create an event.
			        Task myTask = new Task();
			        myTask.WhatId = Oppr.Id;
			        myTask.WhoId = con.Id;
			        myTask.IsReminderSet = true;
			        myTask.ReminderDateTime = System.Today();
			        myTask.ActivityDate = System.Today();
			        myTask.Description = SearchBody;
			        myTask.Subject = SearchSubject;
			        myTask.OwnerId = Usr.Id;
			        myTask.Status = 'Completed';
			        
			        Insert myTask; 
		        		  		
      }
      
      Messaging.SendEmailResult [] r = Messaging.sendEmail(new Messaging.SingleEmailMessage[] {email});
      
      Pagereference OppPage = new ApexPages.StandardController(Oppr).view();
      opppage.setredirect(true);
      return OppPage;
    }catch(Exception e){
    System.debug('ERROR:' + e);
    return null;
    }

  }
  
  public PageReference EmailInvoice(){
   	
   	try
    {

      PageReference pcd = Page.esc_Invoice;
      pcd.getParameters().put('id',Oppr.id);
      Blob pdfBlob = pcd.getContent();
      str2=SearchBody1.replaceAll('\n','<br/>');
      
      Messaging.SingleEmailMessage email = new Messaging.SingleEmailMessage();      
      String [] toAddresses = new String[] {SearchTo};
      String [] toCC = new String[] {SearchCC};
      String [] toBCC = new String[] {SearchBCC}; 
           
      if(Acc.RecordTypeId == r1.Id || Acc.RecordTypeId == r2.Id){  
      	Contact cc=[select id,name,Email from contact where id=:oppr.contact__c];
		      if(cc.Email != null){     
		      email.setTargetObjectId(cc.Id);
		      email.setSubject(SearchSubject1);
		      email.setHtmlBody(str2);
		      
		      if(SearchCC!=''){
		      email.setCcAddresses(toCC);
		      }
		      if(SearchBCC!=''){
		      email.setBccAddresses(toBCC);
		      }
		      email.setSaveAsActivity(true);		      
		      
		      	  // Create an email attachment
			      Messaging.EmailFileAttachment efa = new Messaging.EmailFileAttachment();
			      efa.setFileName('ES_'+Oppr.Invoice_Number__c + '.pdf'); 
			      efa.setBody(pdfBlob); //attach the PDF
			      email.setFileAttachments(new Messaging.EmailFileAttachment[] {efa});
			      
			      //Create an event.
			        Task myTask = new Task();
			        myTask.WhatId = Oppr.Id;
			        myTask.WhoId = cc.Id;
			        myTask.IsReminderSet = true;
			        myTask.ReminderDateTime = System.Today();
			        myTask.ActivityDate = System.Today();
			        myTask.Description = SearchBody1;
			        myTask.Subject = SearchSubject1;
			        myTask.OwnerId = Usr.Id;
			        myTask.Status = 'Completed';
			        
			        Insert myTask;			      	      		
		      }
		      
		      else{
		      email.setSaveAsActivity(false);	
		        email.setTargetObjectId(usr.Id);
		        email.setSubject('No Email to send the Quotation');
		        email.setHtmlBody('Dear '+usr.Name+', No Email ID found into the Contact to send the Quotation.');
		      }  
		      
      }
      
      if(Acc.RecordTypeId == r3.Id){
		  	  
		  		//email.setTargetObjectId(Con.Id);
		        email.setSubject(SearchSubject1);
		        email.setHtmlBody(str2);
		        email.setToAddresses(toAddresses);
		      	
		      	if(SearchCC!=''){
		      	email.setCcAddresses(toCC);
		     	}
		     	if(SearchBCC!=''){
		     	email.setBccAddresses(toBCC);
		      	}
		        email.setSaveAsActivity(true);
		        
		          // Create an email attachment
			      Messaging.EmailFileAttachment efa = new Messaging.EmailFileAttachment();
			      efa.setFileName('ES_'+Oppr.Invoice_Number__c + '.pdf'); 
			      efa.setBody(pdfBlob); //attach the PDF
			      email.setFileAttachments(new Messaging.EmailFileAttachment[] {efa});
			      
			      //Create an event.
			        Task myTask = new Task();
			        myTask.WhatId = Oppr.Id;
			        myTask.WhoId = con.Id;
			        myTask.IsReminderSet = true;
			        myTask.ReminderDateTime = System.Today();
			        myTask.ActivityDate = System.Today();
			        myTask.Description = SearchBody1;
			        myTask.Subject = SearchSubject1;
			        myTask.OwnerId = Usr.Id;
			        myTask.Status = 'Completed';
			        
			        Insert myTask;
      }
      
      Messaging.SendEmailResult [] r = Messaging.sendEmail(new Messaging.SingleEmailMessage[] {email});
      
      Pagereference OppPage = new ApexPages.StandardController(Oppr).view();
      opppage.setredirect(true);
      return OppPage;
    }catch(Exception e){
    System.debug('ERROR:' + e);
    return null;
    }
    
}	  
 
 	private ApexPages.StandardController controller;
}

Thanks

Raj