public ReliableTopicConfig setReadBatchSize(int readBatchSize) {
        this.readBatchSize = checkPositive("readBatchSize", readBatchSize);
        return this;
    }
@Test
    public void setReadBatchSize() {
        ReliableTopicConfig config = new ReliableTopicConfig("foo");
        config.setReadBatchSize(200);

        assertEquals(200, config.getReadBatchSize());
    }