CreateCustomMetric_test.go - AWS Code Sample

CreateCustomMetric_test.go

/* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. This file is licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the License. A copy of the License is located at http://aws.amazon.com/apache2.0/ This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package main import ( "encoding/json" "io/ioutil" "strconv" "testing" "time" "github.com/aws/aws-sdk-go/aws/session" "github.com/aws/aws-sdk-go/service/cloudwatch" ) type config struct { Namespace string `json:"Namespace"` Metrics []struct { MetricName string `json:"MetricName"` Unit string `json:"Unit"` Value float64 `json:"Value"` DimensionName string `json:"DimensionName"` DimensionValue string `json:"DimensionValue"` } `json:"Metrics"` } var globalConfig config var configFileName = "config.json" func populateConfig(t *testing.T) error { // Get and store configuration values // Get configuration from config.json // Get entire file as a JSON string content, err := ioutil.ReadFile(configFileName) if err != nil { return err } // Convert []byte to string text := string(content) // Marshall JSON string in text into global struct err = json.Unmarshal([]byte(text), &globalConfig) if err != nil { return err } t.Log("Namespace: " + globalConfig.Namespace) return nil } func listMetrics(t *testing.T, sess *session.Session, namespace *string) error { svc := cloudwatch.New(sess) result, err := svc.ListMetrics(&cloudwatch.ListMetricsInput{ Namespace: namespace, }) if err != nil { return err } numMetrics := 0 for _, m := range result.Metrics { t.Log(" Metric Name: " + *m.MetricName) numMetrics++ } t.Log("Found " + strconv.Itoa(numMetrics) + " custom metrics in namespace " + *namespace) return nil } func TestCustomMetric(t *testing.T) { // When the test started thisTime := time.Now() nowString := thisTime.Format("2006-01-02 15:04:05 Monday") t.Log("Started unit test at " + nowString) err := populateConfig(t) if err != nil { t.Fatal(err) } // Initialize a session that the SDK uses to load // credentials from the shared credentials file ~/.aws/credentials // and configuration from the shared configuration file ~/.aws/config. sess := session.Must(session.NewSessionWithOptions(session.Options{ SharedConfigState: session.SharedConfigEnable, })) for _, m := range globalConfig.Metrics { err := CreateCustomMetric(sess, &globalConfig.Namespace, &m.MetricName, &m.Unit, &m.Value, &m.DimensionName, &m.DimensionValue) if err != nil { t.Fatal(err) } } // Now list them out err = listMetrics(t, sess, &globalConfig.Namespace) if err != nil { t.Fatal(err) } }