chore: import upstream snapshot with attribution

pkg/observability/observability_test.go

@@ -0,0 +1,46 @@
+package observability
+
+import (
+	"context"
+	"log/slog"
+	"testing"
+
+	"github.com/github/github-mcp-server/pkg/observability/metrics"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewExporters(t *testing.T) {
+	logger := slog.Default()
+	m := metrics.NewNoopMetrics()
+	exp, err := NewExporters(logger, m)
+	ctx := context.Background()
+
+	require.NoError(t, err)
+	assert.NotNil(t, exp)
+	assert.Equal(t, logger, exp.Logger())
+	assert.Equal(t, m, exp.Metrics(ctx))
+}
+
+func TestNewExporters_WithNilLogger(t *testing.T) {
+	_, err := NewExporters(nil, metrics.NewNoopMetrics())
+	require.Error(t, err)
+	assert.Contains(t, err.Error(), "logger must not be nil")
+}
+
+func TestNewExporters_WithNilMetrics(t *testing.T) {
+	_, err := NewExporters(slog.New(slog.DiscardHandler), nil)
+	require.Error(t, err)
+	assert.Contains(t, err.Error(), "metrics must not be nil")
+}
+
+func TestNewExporters_WithDiscardLogger(t *testing.T) {
+	logger := slog.New(slog.DiscardHandler)
+	m := metrics.NewNoopMetrics()
+	exp, err := NewExporters(logger, m)
+
+	require.NoError(t, err)
+	assert.NotNil(t, exp)
+	assert.Equal(t, logger, exp.Logger())
+	assert.Equal(t, m, exp.Metrics(context.Background()))
+}