package logging

import (
	"bytes"
	"strings"
	"testing"
)

func TestNewWritesStructuredLog(t *testing.T) {
	var output bytes.Buffer
	logger := New(&output)
	logger.Info("test event", "component", "test")

	value := output.String()
	if !strings.Contains(value, `"msg":"test event"`) || !strings.Contains(value, `"component":"test"`) {
		t.Fatalf("log output = %q", value)
	}
}

func TestNewNilWriterDoesNotPanic(t *testing.T) {
	New(nil).Info("discarded")
}