feat: authsession service

authsession/storage_boundary_test.go

@@ -0,0 +1,72 @@
+package authsession
+
+import (
+	"fmt"
+	"go/parser"
+	"go/token"
+	"io/fs"
+	"path/filepath"
+	"runtime"
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestProductionCoreStaysStorageAgnostic(t *testing.T) {
+	t.Parallel()
+
+	root := authsessionRootDir(t)
+	for _, relativeDir := range []string{
+		filepath.Join("internal", "domain"),
+		filepath.Join("internal", "service"),
+		filepath.Join("internal", "ports"),
+	} {
+		checkStorageAgnosticImports(t, filepath.Join(root, relativeDir))
+	}
+}
+
+func authsessionRootDir(t *testing.T) string {
+	t.Helper()
+
+	_, thisFile, _, ok := runtime.Caller(0)
+	require.True(t, ok, "runtime.Caller failed")
+
+	return filepath.Dir(thisFile)
+}
+
+func checkStorageAgnosticImports(t *testing.T, dir string) {
+	t.Helper()
+
+	fileSet := token.NewFileSet()
+	err := filepath.WalkDir(dir, func(path string, entry fs.DirEntry, walkErr error) error {
+		if walkErr != nil {
+			return walkErr
+		}
+		if entry.IsDir() {
+			return nil
+		}
+		if !strings.HasSuffix(path, ".go") || strings.HasSuffix(path, "_test.go") {
+			return nil
+		}
+
+		file, err := parser.ParseFile(fileSet, path, nil, parser.ImportsOnly)
+		if err != nil {
+			return err
+		}
+
+		for _, importSpec := range file.Imports {
+			importPath, err := strconv.Unquote(importSpec.Path.Value)
+			if err != nil {
+				return err
+			}
+			if importPath == "github.com/redis/go-redis/v9" || strings.Contains(importPath, "internal/adapters/redis") {
+				return fmt.Errorf("storage-specific import %q found in %s", importPath, path)
+			}
+		}
+
+		return nil
+	})
+	require.NoError(t, err)
+}