### Question:
AnomalyDetectionResource { MetricConfigDTO generateMetricConfig(JsonNode payloadNode, String suffix) { MetricConfigDTO metricConfigDTO = new MetricConfigDTO(); metricConfigDTO.setName(DEFAULT_METRIC_NAME); metricConfigDTO.setDataset(DEFAULT_DATASET_NAME + suffix); metricConfigDTO.setAlias(ThirdEyeUtils .constructMetricAlias(DEFAULT_DATASET_NAME + suffix, DEFAULT_METRIC_NAME)); metricConfigDTO.setDatatype(MetricType.DOUBLE); metricConfigDTO.setDefaultAggFunction(MetricAggFunction.SUM); metricConfigDTO.setActive(true); if (payloadNode.has(METRIC_FIELD)) { updateMetricCustomFields(payloadNode, metricConfigDTO); } metricConfigDAO.save(metricConfigDTO); LOG.info("Created metric with config {}", metricConfigDTO); return metricConfigDTO; } @Inject  AnomalyDetectionResource(UserDashboardResource userDashboardResource); @POST @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) @ApiOperation("Request an anomaly detection online task") Response onlineApi(
          @QueryParam("start") Long start,
          @QueryParam("end") Long end,
          @QueryParam("data-id") Long dataId,
          @ApiParam("jsonPayload") String payload,
          @Auth ThirdEyePrincipal principal); @POST @Path("/data") @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) @ApiOperation("Register ad hoc data used in online service and created dataset/metric configs") Response createOnlineData(@ApiParam("jsonPayload") String payload,
      @Auth ThirdEyePrincipal principal); @PUT @Path("/data/{data-id}") @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) @ApiOperation("Update ad hoc data used in online service and corresponding dataset/metric configs") Response updateOnlineData(
      @ApiParam("jsonPayload") String payload,
      @PathParam("data-id") Long dataId,
      @Auth ThirdEyePrincipal principal); @DELETE @Path("/data/{data-id}") @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) @ApiOperation("Delete ad hoc data used in online service and corresponding dataset/metric configs") Response deleteOnlineData(@PathParam("data-id") Long dataId); @GET @Path("/data/{data-id}") @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) @ApiOperation("Get ad hoc data used in online service and corresponding dataset/metric configs") Response getOnlineData(@PathParam("data-id") Long dataId); @POST @Path("/tasks") @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.TEXT_PLAIN) @ApiOperation("Submit an anomaly detection task") Response taskSubmitApi(
      @QueryParam("start") long start,
      @QueryParam("end") long end,
      @QueryParam("detection-name") String detectionName); @GET @Path("/task/{task-id}") @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.TEXT_PLAIN) @ApiOperation("Query a task status") Response taskStatusApi(@PathParam("task-id") long taskId);  }### Answer:
@Test public void testGenerateMetricConfig() throws Exception { String payload = IOUtils.toString(this.getClass().getResourceAsStream("payload-good.json")); JsonNode node = this.objectMapper.readTree(payload); MetricConfigDTO metricConfigDTO = this.anomalyDetectionResource .generateMetricConfig(node, this.suffix); Assert.assertEquals(metricConfigDTO.getName(), DEFAULT_METRIC_NAME); payload = IOUtils.toString(this.getClass().getResourceAsStream("payload-good-custom.json")); node = this.objectMapper.readTree(payload); metricConfigDTO = this.anomalyDetectionResource .generateMetricConfig(node, this.suffix); Assert.assertEquals(metricConfigDTO.getName(), "rate"); }