clear test user data

app/Invoice.php

@@ -13,10 +13,10 @@ class Invoice extends Model
     }
 
     public function invoiceDetails() {
-        return $this->hasOne('App\InvoiceDetails');
+        return $this->hasMany(InvoiceDetails::class);
     }
 
     public function invoiceStatuses() {
-        return $this->hasMany('App\InvoiceStatuses');
+        return $this->hasMany(InvoiceStatuses::class);
     }
 }