package telemetry

import (
	"context"
	"testing"

	sdkresource "go.opentelemetry.io/otel/sdk/resource"
)

func TestNewWithoutExportersUsesNoopProviders(t *testing.T) {
	providers, err := New(Config{Resource: sdkresource.Empty()})
	if err != nil {
		t.Fatalf("New() error = %v", err)
	}
	if providers.Tracer == nil || providers.Meter == nil {
		t.Fatal("New() returned nil provider")
	}
	if err := providers.Shutdown(context.Background()); err != nil {
		t.Fatalf("Shutdown() error = %v", err)
	}
}

func TestNewRequiresResource(t *testing.T) {
	if _, err := New(Config{}); err == nil {
		t.Fatal("New() error = nil, want missing resource error")
	}
}