In circuit tester (Pass or Fail Conflict)

Try a simple test .Configure one pin as Input and another as Output.
Connect a jumper between the two.
Create a Boolean called PinStatus.. Set it False at the beginning and then turn On the Output.

#define Led=13;
#define Inpin 5;
#define Outpin 6;
Boolean PinStatus;

void setup()
{
   pinMode(Inpin,INPUT);
  pinMode(Outpin,OUTPUT);
 PinStatus=False;
  }
 
  void loop()
   {

digitalWrite(Outpin,HIGH);
PinStatus=True;
   if (PinStatus== True)
{
   digitalWrite(Led,HIGH);
  }
delay(1000);

digitalWrite(Outpin,LOW);
PinStatus=False;
delay(1000);
   if (PinStatus== False)
{
   digitalWrite(Led,LOW);
  }
}