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  package org.apache.cayenne.datasource;
  
  import static org.junit.Assert.assertSame;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  import java.sql.Connection;
  import java.sql.PreparedStatement;
  import java.sql.SQLException;
  
  import org.junit.Before;
  import org.junit.Test;
  
  public class PoolAwareConnectionTest {
  
  	private UnmanagedPoolingDataSource parentMock;
  	private Connection connectionMock;
  
  	@Before
  	public void before() throws SQLException {
  		connectionMock = mock(Connection.class);
  
  		parentMock = mock(UnmanagedPoolingDataSource.class);
  		when(parentMock.createUnwrapped()).thenReturn(connectionMock);
  	}
  
  	@Test
  	public void testRecover() throws SQLException {
  		PoolAwareConnection paConnection = new PoolAwareConnection(parentMock, connectionMock, null);
  		SQLException e = mock(SQLException.class);
  
  		verify(parentMock, times(0)).createUnwrapped();
  		paConnection.recover(e);
  		verify(parentMock, times(1)).createUnwrapped();
  
  		assertSame(connectionMock, paConnection.getConnection());
  	}
  
  	@Test
  	public void testPrepareStatement() throws SQLException {
  		PreparedStatement firstTry = mock(PreparedStatement.class);
  		PreparedStatement secondTry = mock(PreparedStatement.class);
  
  		when(connectionMock.prepareStatement(anyString())).thenReturn(firstTry, secondTry);
  
  		PoolAwareConnection paConnection = new PoolAwareConnection(parentMock, connectionMock, null);
  		PreparedStatement st = paConnection.prepareStatement("SELECT 1");
  		assertSame(firstTry, st);
  	}
  
  	@Test
  	public void testPrepareStatement_Recover() throws SQLException {
  
  		PreparedStatement secondTry = mock(PreparedStatement.class);
  		when(connectionMock.prepareStatement(anyString())).thenThrow(new SQLException("E1")).thenReturn(secondTry);
  
  		PoolAwareConnection paConnection = new PoolAwareConnection(parentMock, connectionMock, null);
  		PreparedStatement st = paConnection.prepareStatement("SELECT 1");
  		assertSame(secondTry, st);
  	}
  
  	@Test
  	public void testPrepareStatement_Recover_Impossible() throws SQLException {
  
  		SQLException original = new SQLException("E1");
  		when(connectionMock.prepareStatement(anyString())).thenThrow(original);
  		PoolAwareConnection paConnection = new PoolAwareConnection(parentMock, connectionMock, null);
  
  		try {
  			paConnection.prepareStatement("SELECT 1");
  		} catch (SQLException e) {
  			assertSame(original, e);
  		}
  
  	}
  }
  