[feature] migrate to monorepo

backend/internal/testutil/mock.go

@@ -0,0 +1,32 @@
+package testutil
+
+import (
+	"io"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+// MockReadCloser is a mock implementation of io.ReadCloser
+type MockReadCloser struct {
+	io.Reader
+	CloseFunc func() error
+}
+
+func (m MockReadCloser) Close() error {
+	if m.CloseFunc != nil {
+		return m.CloseFunc()
+	}
+	return nil
+}
+
+// NewMockReadCloser creates a new MockReadCloser with the given content
+func NewMockReadCloser(content string) io.ReadCloser {
+	return MockReadCloser{Reader: strings.NewReader(content)}
+}
+
+// RequireMockEquals asserts that two mocks are equal
+func RequireMockEquals(t *testing.T, expected, actual interface{}) {
+	require.Equal(t, expected, actual)
+}