81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
package template
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import (
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"testing"
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"time"
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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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func TestTagTemplateConcatenate(t *testing.T) {
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now := time.Now()
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// Create Template processor
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tmp := TemplateProcessor{Tag: "topic", Template: `{{.Tag "hostname"}}.{{ .Tag "level" }}`}
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// manually init
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err := tmp.Init()
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if err != nil {
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panic(err)
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}
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// create metric for testing
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input := []telegraf.Metric{testutil.MustMetric("Tags", map[string]string{"hostname": "localhost", "level": "debug"}, nil, now)}
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// act
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actual := tmp.Apply(input[0])
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// assert
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expected := []telegraf.Metric{testutil.MustMetric("Tags", map[string]string{"hostname": "localhost", "level": "debug", "topic": "localhost.debug"}, nil, now)}
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testutil.RequireMetricsEqual(t, expected, actual)
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}
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func TestMetricMissingTagsIsNotLost(t *testing.T) {
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now := time.Now()
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// Create Template processor
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tmp := TemplateProcessor{Tag: "topic", Template: `{{.Tag "hostname"}}.{{ .Tag "level" }}`}
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// manually init
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err := tmp.Init()
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if err != nil {
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panic(err)
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}
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// create metrics for testing
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m1 := testutil.MustMetric("Works", map[string]string{"hostname": "localhost", "level": "debug"}, nil, now)
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m2 := testutil.MustMetric("Fails", map[string]string{"hostname": "localhost"}, nil, now)
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// act
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actual := tmp.Apply(m1, m2)
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// assert
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// make sure no metrics are lost when a template process fails
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assert.Equal(t, 2, len(actual), "Number of metrics input should equal number of metrics output")
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}
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func TestTagAndFieldConcatenate(t *testing.T) {
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now := time.Now()
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// Create Template processor
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tmp := TemplateProcessor{Tag: "LocalTemp", Template: `{{.Tag "location"}} is {{ .Field "temperature" }}`}
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// manually init
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err := tmp.Init()
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if err != nil {
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panic(err)
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}
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// create metric for testing
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m1 := testutil.MustMetric("weather", map[string]string{"location": "us-midwest"}, map[string]interface{}{"temperature": "too warm"}, now)
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// act
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actual := tmp.Apply(m1)
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// assert
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expected := []telegraf.Metric{testutil.MustMetric("weather", map[string]string{"location": "us-midwest", "LocalTemp": "us-midwest is too warm"}, map[string]interface{}{"temperature": "too warm"}, now)}
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testutil.RequireMetricsEqual(t, expected, actual)
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}
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