trigger Send_To_PropSub on Sales_Handoff_Activity__c (before update) {

for(Sales_Handoff_Activity__c SHA : trigger.new){
    if (SHA.Tech_Doc_Status__c == 'Complete') {
       Messaging.SingleEmailMessage email = new Messaging.SingleEmailMessage();

       List<Messaging.EmailFileAttachment> attachmentList = new List<Messaging.EmailFileAttachment>();

       //SHA = [SELECT id, Name, Primary_Email__c, Account_Name__c FROM Sales_Handoff_Activity__c WHERE Id = :SHA.Id];

        // create email content
        String Name = SHA.Name;
        String AccountName = SHA.Account_Name__c;

        String subject = 'Tech Docs Complete for '+Name;
        email.setSubject(subject);


        String line1 = 'Please review the attached completed tech docs for:'+AccountName+'+';
        String line2 = 'You can also view these on the Sales Handoff Activity ::'+Name+'+';
        String line3 = 'thank you!  Sales Ops';
        String body = line1 + line2 ;
        email.setPlainTextBody(body);


        email.setToAddresses(new String[]{'Kevin.chiles@megapath.com'});
        {

            SHA.Tech_Doc_Status__c = 'Complete';

            // fetch attachments for Sales_Handoff_Activity__c
            Attachment att = [SELECT id, Name, body, ContentType FROM Attachment WHERE ParentId = : SHA.id];

   // List of attachments handler
   Messaging.EmailFileAttachment efa = new Messaging.EmailFileAttachment();

   {


     // Create the email attachment
     efa.setFileName(att.Name);
     efa.setBody(att.body);
     efa.setContentType(att.ContentType);
     efa.setInline(false);

        attachmentList.add(efa);
   }

    // Attach files to email instance
    email.setFileAttachments(attachmentList);

     Messaging.sendEmail(new Messaging.singleEmailMessage[] {email});
          }
      }
   }
}

@isTest
private class EngineerNotesCreateTest
{
    static testMethod void EngineerNotesCreate()
    {

    Account acc=New Account(Name='test');
    insert acc;

     Contact ct=New Contact(FirstName='sarah',LastName='jenny',email='test@test.com',AccountId=acc.id);
        insert ct;

     Opportunity opp= New Opportunity (Name='Test',Closedate=date.today(),NextStep='test',StageName='1 – Solution Design',Sales_Engineer__c='Joel Thomas',
     LeadSource='Call - Service Transfer',Type='Change Voice Services',Channel__c='SMB',
        Install_Street__c='Test',
        Install_Zip__c='94582',
        Install_State__c='CA',
        Install_City__c='Test',
        Install_Phone__c='3157775695',
        Install_Country__c='USA');
        Insert opp;


        Sales_Handoff_Activity__c Sha= new Sales_Handoff_Activity__c(
        Number_of_Seats_Trunks__c='5',
        Primary_Contact_Time_Zone__c='West',
        Opportunity_Name_2__c=opp.id,
        Customer_Contact_Name__c='Kevin Chiles',
        Customer_Contact_Email__c='kchiles2@gmail.com',
        Customer_Contact_Phone__c='0000000000',
        Quote_ID__c='255555.2',
        Expedite_Hand_Off_Date__c= date.today(),

        VPM_Notes__c='test notes',
        Assigned_VPM__c='Alex Stewart'

        );
        insert Sha;
        Attachment attach=new Attachment();
        attach.Name='Unit Test Attachment';
        Blob bodyBlob=Blob.valueOf('Unit Test Attachment Body');
        attach.body=bodyBlob;
        attach.parentId=sha.id;
        insert attach;

        sha.tech_doc_status__c='Complete';

        update Sha;
    }
}

//Retrieve Email template
 EmailTemplate et=[Select id from EmailTemplate where name=:'Tech Doc Complete Full'];


//Create email list
    List<Messaging.SingleEmailMessage> emails = new List<Messaging.SingleEmailMessage>();

   //Create attachment list
   List<Messaging.EmailFileAttachment> attachmentList = new List<Messaging.EmailFileAttachment>();

   //Create message

   Messaging.SingleEmailMessage singlemail = new Messaging.SingleEmailMessage();
    //add template
   singleMail.setTemplateId(et.Id);
    //set target object for merge fields
    singleMail.setTargetObjectId(SHA.OwnerId);

    //set to save as activity or not
    singleMail.setSaveAsActivity(false);


    //add address's that you are sending the email to
    String []ToAddress= new string[] {'SSS1@Megapath.com','highcap@megapath.com' ,'Salesops@megapath.com'};

    //set addresses
    singlemail.setToAddresses(toAddress);


        //add mail
            emails.add(singleMail);

    {



        // fetch attachments for Object
 Attachment att = [SELECT id, Name, body, ContentType FROM Attachment WHERE ParentId = : SHA.id];

// Create the email attachment
 efa.setFileName(att.Name);
 efa.setBody(att.body);
 efa.setContentType(att.ContentType);
 efa.setInline(false);

    attachmentList.add(efa);

// Attach files to email instance
singlemail.setFileAttachments(attachmentList);
//send the message
 Messaging.sendEmail(emails);
      }