BlobRegressionTest.java 文件源码

/**
 * Tests fix for BUG#20453712 - CLOB.SETSTRING() WITH VALID INPUT RETURNS EXCEPTION
 * server-side prepared statements and streaming BINARY data.
 * 
 * @throws Exception
 *             if the test fails.
 */
public void testBug20453712() throws Exception {
    final String s1 = "NewClobData";
    this.rs = this.stmt.executeQuery("select 'a'");
    this.rs.next();
    final Clob c1 = this.rs.getClob(1);

    // check with wrong position
    assertThrows(SQLException.class, "Starting position can not be < 1", new Callable<Void>() {
        public Void call() throws Exception {
            c1.setString(0, s1, 7, 4);
            return null;
        }
    });

    // check with wrong substring index
    assertThrows(SQLException.class, "String index out of range: 12", new Callable<Void>() {
        public Void call() throws Exception {
            c1.setString(1, s1, 8, 4);
            return null;
        }
    });

    // full replace
    c1.setString(1, s1, 3, 4);
    assertEquals("Clob", c1.getSubString(1L, (int) c1.length()));

    // add
    c1.setString(5, s1, 7, 4);
    assertEquals("ClobData", c1.getSubString(1L, (int) c1.length()));

    // replace middle chars
    c1.setString(2, s1, 7, 4);
    assertEquals("CDataata", c1.getSubString(1L, (int) c1.length()));
}