}

        @Override
        public void setCreateTime(Long createTime) {
            // Do nothing in test
        }

        @Override
        public void setMimeType(String mimeType) {
            // Do nothing in test
        }

        @Override
        public void setMethod(String method) {
            // Do nothing in test
        }

        }
        return buf.toString();
    }

    /**
     * Sets the MIME type.
     * @param mimeType The MIME type.
     */
    public void setMimeType(final String mimeType) {
        this.mimeType = mimeType;
    }

        responseData.setUrl("http://example.com/document.pdf");
        assertEquals("http://example.com/document.pdf", responseData.getUrl());

        responseData.setMimeType("application/pdf");
        assertEquals("application/pdf", responseData.getMimeType());

        responseData.setCharSet("UTF-8");
        assertEquals("UTF-8", responseData.getCharSet());