Please any one help me on this issue,

how to cover the code inside the if condition in test class

public class Pocinsert
{

public List<Plan_of_Care__c> mplan {get; set;}  
 public Pocinsert(){
 mplan = new List<Plan_of_Care__c>();
 makeAvailabilityWindow();
}
  
public String Employee='';

public String getEmployee()
{
return Employee;
}
public void setEmployee(String Employee)
{
this.Employee=Employee;
}

public List<SelectOption> getEmployees()
{
List<SelectOption> option=new List<SelectOption>();
option.add(new SelectOption('', '- None -')); 
for(Employee__c e:[select id,name,lastname__c from Employee__c order by name ASC])
{

option.add(new SelectOption(e.id,e.lastname__c+'-'+e.name));
}
return option;
}

String Client ='';
public String getclient()
{
return client;
}
public void setclient(String Client)
{
this.client=client;
}

public List<SelectOption> getClients()
{
List<SelectOption> option= new List<SelectOption>();
option.add(new SelectOption('', '- None -')); 
for(Client__c c:[select id,name,lastname__c from Client__c where Employee__c =: Employee order by name ASC])
{
option.add(new selectoption(c.id,c.lastname__c+'-'+c.name));
}
return option;
}
  
public void makeAvailabilityWindow()
{
 numberDays = date.daysInMonth(Integer.valueof(selectedYears), Integer.valueof(selectedMonths));
 for(Integer i=1; i<=numberDays; i++){
 day_L.add(String.valueof(i));
 }
   
   for(Integer j=1; j<=numberDays; j++){
    mplan.add(new Plan_of_Care__c());
                 }
     }
                
  public PageReference savem(){ 
  Integer count = mplan.size();
  Integer i = 0; 
  if(Client!=null && Employee!=null)
   {          
      do {
             Integer d = i+1;
            if(mplan[i].Tub_Bath_Shower__c <> 'XX' && mplan[i].Tub_Bath_Shower__c <> null)
             {               
                  mplan[i].Tub_Bath_Shower__c.addError('Input Field value must be XX');
                  PageReference opptyPage = new PageReference('/apex/InsertPOC');
                  return opptyPage; 
              }

          if(mplan[i].Tub_Showertransfer_Position__c <> 'XX' && mplan[i].Tub_Showertransfer_Position__c <> null)
            {
                mplan[i].Tub_Showertransfer_Position__c.addError('Input Field value must be XX');
                PageReference opptyPage = new PageReference('/apex/InsertPOC');
                return opptyPage;
             }      
          if(mplan[i].Bed_Bath__c <> 'XX' && mplan[i].Bed_Bath__c <> null)
             {               
                  mplan[i].Bed_Bath__c.addError('Input Field value must be XX');
                  PageReference opptyPage = new PageReference('/apex/InsertPOC');
                  return opptyPage; 
              }

           
        mplan[i].Client__c=client;
        mplan[i].Employee__c=Employee;      
        mplan[i].date__c=date.newInstance(Integer.valueof(selectedYears),Integer.valueof(selectedMonths),d);
              
               
                i++;
                d=0;
                } while (i < count);
           }              
           upsert mplan;                          
                                
            PageReference home = new PageReference('/apex/InsertPOC');        
            home.setRedirect(true);        
            return home;                    
            }
			}