156 lines
3.4 KiB
Go
156 lines
3.4 KiB
Go
package collector
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import (
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"io/ioutil"
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"strings"
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"testing"
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"github.com/dimchansky/utfbom"
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dto "github.com/prometheus/client_model/go"
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)
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func TestCRFilter(t *testing.T) {
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sr := strings.NewReader("line 1\r\nline 2")
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cr := carriageReturnFilteringReader{r: sr}
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b, err := ioutil.ReadAll(cr)
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if err != nil {
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t.Error(err)
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}
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if string(b) != "line 1\nline 2" {
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t.Errorf("Unexpected output %q", b)
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}
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}
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func TestCheckBOM(t *testing.T) {
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testdata := []struct {
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encoding utfbom.Encoding
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err string
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}{
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{utfbom.Unknown, ""},
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{utfbom.UTF8, ""},
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{utfbom.UTF16BigEndian, "UTF16BigEndian"},
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{utfbom.UTF16LittleEndian, "UTF16LittleEndian"},
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{utfbom.UTF32BigEndian, "UTF32BigEndian"},
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{utfbom.UTF32LittleEndian, "UTF32LittleEndian"},
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}
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for _, d := range testdata {
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err := checkBOM(d.encoding)
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if d.err == "" && err != nil {
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t.Error(err)
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}
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if d.err != "" && err == nil {
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t.Errorf("Missing expected error %s", d.err)
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}
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if err != nil && !strings.Contains(err.Error(), d.err) {
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t.Error(err)
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}
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}
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}
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func TestDuplicateMetricEntry(t *testing.T) {
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metric_name := "windows_sometest"
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metric_help := "This is a Test."
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metric_type := dto.MetricType_GAUGE
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gauge_value := 1.0
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gauge := dto.Gauge{
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Value: &gauge_value,
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}
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label1_name := "display_name"
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label1_value := "foobar"
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label1 := dto.LabelPair{
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Name: &label1_name,
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Value: &label1_value,
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}
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label2_name := "display_version"
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label2_value := "13.4.0"
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label2 := dto.LabelPair{
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Name: &label2_name,
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Value: &label2_value,
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}
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metric1 := dto.Metric{
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Label: []*dto.LabelPair{&label1, &label2},
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Gauge: &gauge,
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}
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metric2 := dto.Metric{
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Label: []*dto.LabelPair{&label1, &label2},
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Gauge: &gauge,
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}
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duplicate := dto.MetricFamily{
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Name: &metric_name,
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Help: &metric_help,
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Type: &metric_type,
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Metric: []*dto.Metric{&metric1, &metric2},
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}
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duplicateFamily := []*dto.MetricFamily{}
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duplicateFamily = append(duplicateFamily, &duplicate)
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// Ensure detection for duplicate metrics
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if !duplicateMetricEntry(duplicateFamily) {
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t.Errorf("Duplicate not found in duplicateFamily")
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}
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label3_name := "test"
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label3_value := "1.0"
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label3 := dto.LabelPair{
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Name: &label3_name,
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Value: &label3_value,
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}
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metric3 := dto.Metric{
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Label: []*dto.LabelPair{&label1, &label2, &label3},
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Gauge: &gauge,
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}
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differentLabels := dto.MetricFamily{
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Name: &metric_name,
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Help: &metric_help,
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Type: &metric_type,
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Metric: []*dto.Metric{&metric1, &metric3},
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}
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duplicateFamily = []*dto.MetricFamily{}
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duplicateFamily = append(duplicateFamily, &differentLabels)
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// Additional label on second metric should not be cause for duplicate detection
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if duplicateMetricEntry(duplicateFamily) {
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t.Errorf("Unexpected duplicate found in differentLabels")
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}
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label4_value := "2.0"
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label4 := dto.LabelPair{
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Name: &label3_name,
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Value: &label4_value,
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}
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metric4 := dto.Metric{
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Label: []*dto.LabelPair{&label1, &label2, &label4},
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Gauge: &gauge,
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}
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differentValues := dto.MetricFamily{
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Name: &metric_name,
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Help: &metric_help,
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Type: &metric_type,
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Metric: []*dto.Metric{&metric3, &metric4},
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}
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duplicateFamily = []*dto.MetricFamily{}
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duplicateFamily = append(duplicateFamily, &differentValues)
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// Additional label with different values metric should not be cause for duplicate detection
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if duplicateMetricEntry(duplicateFamily) {
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t.Errorf("Unexpected duplicate found in differentValues")
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}
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}
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