57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
package metrics
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import (
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"fmt"
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"testing"
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)
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// MyLabelsSlow will be converted into {hello="world",enabled="true"}
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// via reflect implementation.
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// It's slow but completely automatic. You don't need to write any code
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type MyLabelsSlow struct {
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StructLabelComposer
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Status string
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Flag bool
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}
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func TestLabelComposeWithReflect(t *testing.T) {
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want := `my_counter{status="active",flag="true"}`
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got := NameCompose("my_counter", MyLabelsSlow{
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Status: "active",
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Flag: true,
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})
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if got != want {
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t.Fatalf("unexpected full name; got %q; want %q", got, want)
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}
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}
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// MyLabelsFast will be converted into string
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// via custom implementation (Using ToLabelsString() method of LabelComposer interface)
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// It's fast but requires manual implementation.
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type MyLabelsFast struct {
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StructLabelComposer
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Status string
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Flag bool
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}
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func (m *MyLabelsFast) ToLabelsString() string {
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return "{" +
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`status="` + m.Status + `",` +
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`flag="` + fmt.Sprintf("%v", m.Flag) + `"` +
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"}"
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}
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func TestLabelComposeWithoutReflect(t *testing.T) {
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want := `my_counter{status="active",flag="true"}`
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got := NameCompose("my_counter", &MyLabelsFast{
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Status: "active", Flag: true,
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})
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if want != got {
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t.Fatalf("unexpected full name; got %q; want %q", got, want)
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}
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}
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