104 lines
3.2 KiB
Go
104 lines
3.2 KiB
Go
package cloudwatch
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import (
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"fmt"
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"math"
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"sort"
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"testing"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/cloudwatch"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/testutil"
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"github.com/stretchr/testify/assert"
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)
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// Test that each tag becomes one dimension
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func TestBuildDimensions(t *testing.T) {
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const MaxDimensions = 10
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assert := assert.New(t)
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testPoint := testutil.TestMetric(1)
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dimensions := BuildDimensions(testPoint.Tags())
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tagKeys := make([]string, len(testPoint.Tags()))
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i := 0
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for k, _ := range testPoint.Tags() {
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tagKeys[i] = k
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i += 1
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}
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sort.Strings(tagKeys)
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if len(testPoint.Tags()) >= MaxDimensions {
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assert.Equal(MaxDimensions, len(dimensions), "Number of dimensions should be less than MaxDimensions")
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} else {
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assert.Equal(len(testPoint.Tags()), len(dimensions), "Number of dimensions should be equal to number of tags")
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}
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for i, key := range tagKeys {
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if i >= 10 {
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break
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}
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assert.Equal(key, *dimensions[i].Name, "Key should be equal")
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assert.Equal(testPoint.Tags()[key], *dimensions[i].Value, "Value should be equal")
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}
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}
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// Test that metrics with valid values have a MetricDatum created where as non valid do not.
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// Skips "time.Time" type as something is converting the value to string.
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func TestBuildMetricDatums(t *testing.T) {
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assert := assert.New(t)
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zero := 0.0
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validMetrics := []telegraf.Metric{
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testutil.TestMetric(1),
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testutil.TestMetric(int32(1)),
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testutil.TestMetric(int64(1)),
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testutil.TestMetric(float64(1)),
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testutil.TestMetric(float64(0)),
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testutil.TestMetric(math.Copysign(zero, -1)), // the CW documentation does not call out -0 as rejected
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testutil.TestMetric(float64(8.515920e-109)),
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testutil.TestMetric(float64(1.174271e+108)), // largest should be 1.174271e+108
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testutil.TestMetric(true),
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}
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invalidMetrics := []telegraf.Metric{
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testutil.TestMetric("Foo"),
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testutil.TestMetric(math.Log(-1.0)),
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testutil.TestMetric(float64(8.515919e-109)), // smallest should be 8.515920e-109
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testutil.TestMetric(float64(1.174272e+108)), // largest should be 1.174271e+108
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}
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for _, point := range validMetrics {
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datums := BuildMetricDatum(point)
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assert.Equal(1, len(datums), fmt.Sprintf("Valid point should create a Datum {value: %v}", point))
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}
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for _, point := range invalidMetrics {
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datums := BuildMetricDatum(point)
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assert.Equal(0, len(datums), fmt.Sprintf("Valid point should not create a Datum {value: %v}", point))
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}
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}
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func TestPartitionDatums(t *testing.T) {
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assert := assert.New(t)
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testDatum := cloudwatch.MetricDatum{
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MetricName: aws.String("Foo"),
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Value: aws.Float64(1),
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}
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zeroDatum := []*cloudwatch.MetricDatum{}
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oneDatum := []*cloudwatch.MetricDatum{&testDatum}
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twoDatum := []*cloudwatch.MetricDatum{&testDatum, &testDatum}
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threeDatum := []*cloudwatch.MetricDatum{&testDatum, &testDatum, &testDatum}
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assert.Equal([][]*cloudwatch.MetricDatum{}, PartitionDatums(2, zeroDatum))
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assert.Equal([][]*cloudwatch.MetricDatum{oneDatum}, PartitionDatums(2, oneDatum))
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assert.Equal([][]*cloudwatch.MetricDatum{oneDatum}, PartitionDatums(2, oneDatum))
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assert.Equal([][]*cloudwatch.MetricDatum{twoDatum}, PartitionDatums(2, twoDatum))
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assert.Equal([][]*cloudwatch.MetricDatum{twoDatum, oneDatum}, PartitionDatums(2, threeDatum))
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}
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