mirror of https://github.com/grafana/grafana.git
129 lines
2.6 KiB
Go
129 lines
2.6 KiB
Go
package models
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import (
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"fmt"
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"testing"
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"github.com/grafana/grafana-plugin-sdk-go/data"
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"github.com/stretchr/testify/require"
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)
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func TestTupleLabelsToLabels(t *testing.T) {
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t.Run("converts tupleLabels to InstanceLabels", func(t *testing.T) {
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in := tupleLabels{
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{"foo", "bar"},
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{"baz", "qux"},
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}
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labels, err := tupleLablesToLabels(in)
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require.NoError(t, err)
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require.Equal(t, InstanceLabels{
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"foo": "bar",
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"baz": "qux",
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}, labels)
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})
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t.Run("nil input gives empty output", func(t *testing.T) {
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labels, err := tupleLablesToLabels(nil)
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require.NoError(t, err)
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require.Empty(t, labels)
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})
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t.Run("duplicate keys are not allowed", func(t *testing.T) {
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in := tupleLabels{
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{"foo", "bar"},
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{"foo", "qux"},
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}
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_, err := tupleLablesToLabels(in)
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require.Error(t, err)
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})
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}
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func TestInstanceLabelsFingerprint(t *testing.T) {
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t.Run("returns labels fingerprint", func(t *testing.T) {
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labels := InstanceLabels{
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"foo": "bar",
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"baz": "qux",
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}
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fingerprint := labels.Fingerprint()
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expectedFingerprint := data.Labels(labels).Fingerprint()
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require.Equal(t, expectedFingerprint, fingerprint)
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})
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}
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func BenchmarkTupleLabelsToLabels(b *testing.B) {
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b.Run("10 labels", func(b *testing.B) {
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in := make(tupleLabels, 0, 10)
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for i := 0; i < 10; i++ {
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key := fmt.Sprintf("key%d", i)
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value := fmt.Sprintf("value%d", i)
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in = append(in, tupleLabel{key, value})
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, err := tupleLablesToLabels(in)
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if err != nil {
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b.Fatal(err)
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}
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}
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})
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b.Run("100 labels", func(b *testing.B) {
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in := make(tupleLabels, 0, 100)
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for i := 0; i < 100; i++ {
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key := fmt.Sprintf("key%d", i)
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value := fmt.Sprintf("value%d", i)
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in = append(in, tupleLabel{key, value})
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, err := tupleLablesToLabels(in)
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if err != nil {
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b.Fatal(err)
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}
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}
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})
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b.Run("10_000 labels", func(b *testing.B) {
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in := make(tupleLabels, 0, 10_000)
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for i := 0; i < 10_000; i++ {
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key := fmt.Sprintf("key%d", i)
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value := fmt.Sprintf("value%d", i)
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in = append(in, tupleLabel{key, value})
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, err := tupleLablesToLabels(in)
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if err != nil {
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b.Fatal(err)
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}
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}
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})
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b.Run("1_000_000 labels", func(b *testing.B) {
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in := make(tupleLabels, 0, 1_000_000)
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for i := 0; i < 1_000_000; i++ {
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key := fmt.Sprintf("key%d", i)
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value := fmt.Sprintf("value%d", i)
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in = append(in, tupleLabel{key, value})
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, err := tupleLablesToLabels(in)
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if err != nil {
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b.Fatal(err)
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}
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}
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})
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}
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