package org.example.customer.utility;
   
   import static org.junit.Assert.assertEquals;
   import static org.junit.Assert.assertFalse;
   import static org.junit.Assert.assertNotNull;
   import static org.junit.Assert.assertTrue;
   
   import org.apache.logging.log4j.Level;
   import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.core.config.Configurator;
  import org.junit.Before;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  public class CustomerEntityTest
  {
      private CustomerEntity testCustomerEntity = null;
     
      @BeforeClass // this runs only once before any test
      public static void setup()
      {
          Configurator.setLevel(LogManager.getLogger(CustomerEntity.class).getName(), Level.WARN);
      }
  
      @Before
      public void setUp() throws Exception
      {
          testCustomerEntity = new CustomerEntity();
      }
      
      @Test
      public void testCustomerEntityDefaultConstructor()
      {
          CustomerEntity defaultCustomerEntity = new CustomerEntity();
          assertNotNull(defaultCustomerEntity);
      }
      
      @Test
      public void testDefaultId()
      {
          int expected = 1;
          int actual = testCustomerEntity.getId();
          assertEquals(expected, actual);
      }
  
      @Test
      public void testValidId()
      {
          int[] good = { 2, 34, 999, 22, 1, 565656 };
          for (int entry : good) 
          {
              testCustomerEntity.setId(entry);
          }
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testInValidId()
      {
          testCustomerEntity.setId(0);
      }
  
      @Test  
      public void testToString()
      {
          String expected = "CustomerEntity [Id=1]";
          String actual = testCustomerEntity.toString();
          assertEquals(expected, actual);
      }
      
      @Test public void testHashCode()
      {
          CustomerEntity sample = new CustomerEntity();
          int expected = sample.hashCode();
          int actual = testCustomerEntity.hashCode();
          assertEquals(expected, actual);
      }
      
      @Test public void testEquals()
      {
          CustomerEntity sample = new CustomerEntity();
          assertTrue(testCustomerEntity.equals(sample));
      }
      
      @Test public void testNotEquals()
      {
          CustomerEntity sample = new CustomerEntity();
          sample.setId(42);
          assertFalse(testCustomerEntity.equals(sample));
          
          Object junk = new Object();
          assertFalse(testCustomerEntity.equals(junk));
      }
  }