add updateError test

Author: lucarin91

internal/update/errors_test.go

@@ -0,0 +1,32 @@
+package update
+
+import (
+	"errors"
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestUpdateError(t *testing.T) {
+	t.Run("known error", func(t *testing.T) {
+		var err error = &UpdateError{
+			Code:    NoInternetConnection,
+			Details: "no internet connection available",
+		}
+		assert.Equal(t, "no internet connection available", err.Error())
+		assert.Equal(t, "no internet connection available", fmt.Sprintf("%s", err))
+		assert.Equal(t, NoInternetConnection, GetUpdateErrorCode(err))
+	})
+
+	t.Run("unknown error", func(t *testing.T) {
+		var underlyingErr = errors.New("underlying error")
+		var updateErr error = NewUnkownError(underlyingErr)
+
+		assert.Equal(t, "underlying error", updateErr.Error())
+		assert.Equal(t, "underlying error", fmt.Sprintf("%s", updateErr))
+		assert.Equal(t, underlyingErr, errors.Unwrap(updateErr))
+		assert.True(t, errors.Is(updateErr, underlyingErr))
+		assert.Equal(t, UnknownError, GetUpdateErrorCode(updateErr))
+	})
+}