/**
* Tests that the data updated in a Clob is always reflected in the InputStream got. Here the
* updates into the Clob are done using both an OutputStream obtained from this Clob as well as
* using Clob.setString.
*
* @throws Exception
*/
public void testGetAsciiStreamClobUpdates() throws Exception {
// The String that will be used
// to do the inserts into the
// Clob.
String str1 = "Hi I am the insert string";
// Stores the byte array representation of
// the insert string.
byte[] str1_bytes = str1.getBytes();
// The String that will be used in the
// second series of updates
String str2 = "Hi I am the update string";
// create the empty Clob.
Clob clob = getConnection().createClob();
// Get the InputStream from this
// Clob before any writes happen.
InputStream is_BeforeWrite = clob.getAsciiStream();
// Get an OutputStream from this Clob
// into which the data can be written
OutputStream os = clob.setAsciiStream(1);
os.write(str1_bytes);
// Doing a setString now on the Clob
// should reflect the same extension
// in the InputStream also.
clob.setString((str1_bytes.length) + 1, str2);
// Get the input stream from the
// Clob after the update
InputStream is_AfterWrite = clob.getAsciiStream();
// Now check if the two InputStreams
// match
assertEquals(is_BeforeWrite, is_AfterWrite);
}
private void testConvertClobPrepare() throws SQLException, MjdbcException {
// when(conn.createClob()).thenReturn(clob);
when(MappingUtils.invokeFunction(conn, "createClob", new Class[] {}, new Object[] {}))
.thenReturn(clob);
when(clob.setAsciiStream(1)).thenReturn(output);
}
