Response response = fileService.getFile(filePath, 0L);
Assert.assertEquals(200, response.getStatus());
JSONObject obj = ((JSONObject) response.getEntity());
Assert.assertTrue(obj.containsKey("file"));
Assert.assertEquals("1234", ((FileResource) obj.get("file")).getFileContent());
Assert.assertEquals(3, ((FileResource) obj.get("file")).getPageCount());
Assert.assertEquals(0, ((FileResource) obj.get("file")).getPage());
Assert.assertTrue(((FileResource) obj.get("file")).isHasNext());
Assert.assertEquals(filePath, ((FileResource) obj.get("file")).getFilePath());