public class MileageUtil {
 static final integer MAX_MILES_PER_DAY = 500;
 
 public static void areMilesAllowed(Mileage__c[] miles)  {
  Double totalMiles = 0;
  String createdbyId = UserInfo.getUserId();
 
 /* adds miles that were created in previous requests for today */
 for (Mileage__c mq: [select miles__c from Mileage__c
  where Date__c = TODAY and
  createdById = :createdbyId and
  miles__c != null]) {
  totalMiles += mq.miles__c;
 }
 
 /* Totals the miles in the request */
 for (Mileage__c m:miles)  {
  totalMiles += m.miles__c;
  if (totalMiles > MAX_MILES_PER_DAY)
    m.addError ('Mileage request exceeds daily limit: ' + MAX_MILES_PER_DAY);
 }  
  }
}

    static testMethod void testFunction() {

        // Make object
        MainObject mo = new MainObject();

        // Test object with integration set to true               
        Id[] testObjTrue = new Id[1];
        testObjTrue[0] = 'a0440000006f2cQAAQ';  // An object with Value__c = true
        Test.setFixedSearchResults(testObjTrue);
        mo.load();
        System.assert(true == mo.getValue());  // getValue() just returns this.value
    }

    public void load() {

        boolean value =
            [select Value__c
                from Main_Object__c where Name = 'MO-0000'].Value__c;
        this.value = value;
    }

var sql = "Select Doctor__r.OwnerId,Doctor__r.Name,Name,First_Name__c,Last_Name__c,Id  from Patient__c where Id = '" + records[i].get("Patient__c") + "' Limit 1";
         var patqr = sforce.connection.query(sql);

newCell.innerHTML = patqr.getArray("records")[0].get("Doctor__r.OwnerId");

My Trigger
trigger accountsiteupdate on Account (after update) 
{
if (Trigger.isBefore){ 
Account[] accs=Trigger.new; 
acct_site_update.addacctsiteupdate(accs);
}
}

My Class
public class acct_site_update 
{
// This class updates the Account Site field on 
//account records that are
// passed to it.
public static void addacctsiteupdate(Account[] accs)
{
for (Account a:accs)
{
if (a.Site != a.Account_Status_Description__c) 
{
a.Site = a.Account_Status_Description__c;
}
}
}
}

public class CreateAccount {
 public static void verifyDealer(Account a){
  //if(UserInfo.getProfileId()=='00e20000000lJU1AAM') {
   a.addError('access denied');
  //}
 }
 
 static testMethod void test_verifyDealer(){
  Account a = new Account(Name='test');
  CreateAccount.verifyDealer(a);
 }
}