protobuf-go/internal/errors/errors_test.go
Damien Neil 8c86fc5e7d all: remove non-fatal UTF-8 validation errors (and non-fatal in general)
Immediately abort (un)marshal operations when encountering invalid UTF-8
data in proto3 strings. No other proto implementation supports non-UTF-8
data in proto3 strings (and many reject it in proto2 strings as well).
Producing invalid output is an interoperability threat (other
implementations won't be able to read it).

The case where existing string data is found to contain non-UTF8 data is
better handled by changing the field to the `bytes` type, which (aside
from UTF-8 validation) is wire-compatible with `string`.

Remove the errors.NonFatal type, since there are no remaining cases
where it is needed. "Non-fatal" errors which produce results and a
non-nil error are problematic because they compose poorly; the better
approach is to take an option like AllowPartial indicating which
conditions to check for.

Change-Id: I9d189ec6ffda7b5d96d094aa1b290af2e3f23736
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/183098
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
2019-06-20 20:55:13 +00:00

32 lines
803 B
Go

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package errors
import (
"strings"
"testing"
)
func TestNewPrefix(t *testing.T) {
e1 := New("abc")
got := e1.Error()
if !strings.HasPrefix(got, "proto:") {
t.Errorf("missing \"proto:\" prefix in %q", got)
}
if !strings.Contains(got, "abc") {
t.Errorf("missing text \"abc\" in %q", got)
}
e2 := New("%v", e1)
got = e2.Error()
if !strings.HasPrefix(got, "proto:") {
t.Errorf("missing \"proto:\" prefix in %q", got)
}
// Test to make sure prefix is removed from the embedded error.
if strings.Contains(strings.TrimPrefix(got, "proto:"), "proto:") {
t.Errorf("prefix \"proto:\" not elided in embedded error: %q", got)
}
}