go-pulse/metrics/json_test.go

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package metrics
import (
"bytes"
"encoding/json"
"testing"
)
func TestRegistryMarshallJSON(t *testing.T) {
b := &bytes.Buffer{}
enc := json.NewEncoder(b)
r := NewRegistry()
r.Register("counter", NewCounter())
enc.Encode(r)
if s := b.String(); "{\"counter\":{\"count\":0}}\n" != s {
t.Fatalf(s)
}
}
func TestRegistryWriteJSONOnce(t *testing.T) {
r := NewRegistry()
r.Register("counter", NewCounter())
b := &bytes.Buffer{}
WriteJSONOnce(r, b)
if s := b.String(); s != "{\"counter\":{\"count\":0}}\n" {
t.Fail()
}
}