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  package org.apache.cayenne.map;
  
  import org.apache.cayenne.dba.TypesMapping;
  import org.junit.Test;
  
  import java.sql.Types;
  import java.util.Collection;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertNull;
  import static org.junit.Assert.assertSame;
  import static org.junit.Assert.assertTrue;
  
  /**
   */
  public class DbAttributeTest {
  
      @Test
      public void testConstructor1() throws Exception {
          DbAttribute a = new DbAttribute("abc");
          assertEquals("abc", a.getName());
          assertEquals(TypesMapping.NOT_DEFINED, a.getType());
          assertNull(a.getEntity());
      }
  
      @Test
      public void testConstructor2() throws Exception {
          int type = Types.INTEGER;
          DbEntity dbe = new DbEntity("e");
          DbAttribute a = new DbAttribute("abc", type, dbe);
          assertEquals("abc", a.getName());
          assertEquals(type, a.getType());
          assertSame(dbe, a.getEntity());
      }
  
      @Test
      public void testPrimaryKeyEmpty() {
          DbEntity dbe = new DbEntity("e");
          assertNotNull(dbe.getPrimaryKeys());
  
          DbAttribute a = new DbAttribute("abc", Types.INTEGER, dbe);
          dbe.addAttribute(a);
          assertNotNull(dbe.getPrimaryKeys());
          assertEquals(0, dbe.getPrimaryKeys().size());
      }
  
      @Test
      public void testPrimaryKeyAdded() {
          DbEntity dbe = new DbEntity("e");
          DbAttribute a = new DbAttribute("abc", Types.INTEGER, dbe);
          a.setPrimaryKey(true);
          dbe.addAttribute(a);
          Collection<DbAttribute> pk = dbe.getPrimaryKeys();
          assertNotNull(pk);
          assertEquals(1, pk.size());
      }
  
      @Test
      public void testPrimaryKeyAttributeChanged() {
          DbEntity dbe = new DbEntity("e");
          DbAttribute a = new DbAttribute("abc", Types.INTEGER, dbe);
          dbe.addAttribute(a);
          Collection<DbAttribute> pk = dbe.getPrimaryKeys();
          assertNotNull(pk);
          assertEquals(0, pk.size());
  
          a.setPrimaryKey(true);
          pk = dbe.getPrimaryKeys();
          assertNotNull(pk);
          assertEquals(1, pk.size());
      }
  
      @Test
      public void testPrimaryKeyRemoved() {
          DbEntity dbe = new DbEntity("e");
          DbAttribute a = new DbAttribute("abc", Types.INTEGER, dbe);
          a.setPrimaryKey(true);
          dbe.addAttribute(a);
          Collection<DbAttribute> pk = dbe.getPrimaryKeys();
          assertNotNull(pk);
          assertEquals(1, pk.size());
  
          dbe.removeAttribute(a.getName());
          pk = dbe.getPrimaryKeys();
          assertNotNull(pk);
          assertEquals(0, pk.size());    }
  
      @Test
      public void testAttributesCleared() {
          DbEntity dbe = new DbEntity("e");
          DbAttribute a = new DbAttribute("abc", Types.INTEGER, dbe);
          a.setPrimaryKey(true);
          dbe.addAttribute(a);
          Collection<DbAttribute> pk = dbe.getPrimaryKeys();
          assertNotNull(pk);
          assertEquals(1, pk.size());
  
          dbe.clearAttributes();
          pk = dbe.getPrimaryKeys();
          assertNotNull(pk);
          assertEquals(0, pk.size());
      }
  
      @Test
      public void testAutoIncrement() throws Exception {
          DbAttribute attribute = new DbAttribute();
          assertFalse(attribute.isGenerated());
  
          attribute.setGenerated(true);
          assertTrue(attribute.isGenerated());
  
          attribute.setGenerated(false);
          assertFalse(attribute.isGenerated());
      }
  }
  