registry/notifications/metrics_test.go

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package notifications
import (
"encoding/json"
"expvar"
"testing"
)
func TestMetricsExpvar(t *testing.T) {
endpointsVar := expvar.Get("registry").(*expvar.Map).Get("notifications").(*expvar.Map).Get("endpoints")
var v interface{}
if err := json.Unmarshal([]byte(endpointsVar.String()), &v); err != nil {
t.Fatalf("unexpected error unmarshaling endpoints: %v", err)
}
if v != nil {
t.Fatalf("expected nil, got %#v", v)
}
NewEndpoint("x", "y", EndpointConfig{})
if err := json.Unmarshal([]byte(endpointsVar.String()), &v); err != nil {
t.Fatalf("unexpected error unmarshaling endpoints: %v", err)
}
if slice, ok := v.([]interface{}); !ok || len(slice) != 1 {
t.Logf("expected one-element []interface{}, got %#v", v)
}
}