fix(caddyconfig): custom global Caddy config is preserved on regeneration,warn about last load error in 'uc caddy config' (fixes #412)

internal/machine/caddyconfig/server_test.go

@@ -0,0 +1,62 @@
+package caddyconfig
+
+import (
+	"context"
+	"errors"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+func TestServer_GetConfig(t *testing.T) {
+	t.Run("returns saved Caddyfile and reconciliation error", func(t *testing.T) {
+		dir := t.TempDir()
+		caddyfile := "example.com { respond ok }\n"
+		path := filepath.Join(dir, "Caddyfile")
+		require.NoError(t, os.WriteFile(path, []byte(caddyfile), 0o640))
+		info, err := os.Stat(path)
+		require.NoError(t, err)
+
+		service := NewService(dir)
+		service.setReconciliationResult(errors.New("module not registered: caddy.storage.uncloud"))
+		config, err := NewServer(service).GetConfig(context.Background(), &emptypb.Empty{})
+
+		require.NoError(t, err)
+		assert.Equal(t, caddyfile, config.GetCaddyfile())
+		assert.True(t, info.ModTime().Equal(config.GetModifiedAt().AsTime()))
+		assert.Equal(t, "module not registered: caddy.storage.uncloud", config.GetLastReconciliationError())
+
+		service.setReconciliationResult(nil)
+		config, err = NewServer(service).GetConfig(context.Background(), &emptypb.Empty{})
+		require.NoError(t, err)
+		assert.Empty(t, config.GetLastReconciliationError())
+	})
+
+	t.Run("returns NotFound with reconciliation error when Caddyfile is absent", func(t *testing.T) {
+		service := NewService(t.TempDir())
+		service.setReconciliationResult(errors.New("module not registered: caddy.storage.uncloud"))
+
+		config, err := NewServer(service).GetConfig(context.Background(), &emptypb.Empty{})
+
+		assert.Nil(t, config)
+		assert.Equal(t, codes.NotFound, status.Code(err))
+		assert.ErrorContains(t, err, "Caddyfile")
+		assert.ErrorContains(t, err, "last Caddy config load failed: module not registered: caddy.storage.uncloud")
+	})
+
+	t.Run("returns NotFound without reconciliation error when Caddyfile is absent", func(t *testing.T) {
+		service := NewService(t.TempDir())
+
+		config, err := NewServer(service).GetConfig(context.Background(), &emptypb.Empty{})
+
+		assert.Nil(t, config)
+		assert.Equal(t, codes.NotFound, status.Code(err))
+		assert.NotContains(t, err.Error(), "last Caddy config load failed")
+	})
+}