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internal/msgfmt: fix formatting of negative Duration

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If the seconds is zero, but the nanoseconds are negative,
there should still be a leading negative sign.

Change-Id: Ia72a26bc3455a80e572b6bf2ff41395381f811c7
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/247457
Reviewed-by: Herbie Ong <herbie@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
This commit is contained in:
Joe Tsai 2020-08-07 11:42:29 -07:00
parent f2423bb714
commit e96d591a68
2 changed files with 10 additions and 2 deletions
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7
internal/msgfmt/format.go
View File

@ -10,7 +10,6 @@ package msgfmt
import (
"bytes"
"fmt"
"math"
"reflect"
"sort"
"strconv"
@ -130,12 +129,16 @@ func appendKnownMessage(b []byte, m protoreflect.Message) []byte {
return append(b, x+"Z"...)
case genid.Duration_message_fullname:
sign := ""
secs := m.Get(fds.ByNumber(genid.Duration_Seconds_field_number)).Int()
nanos := m.Get(fds.ByNumber(genid.Duration_Nanos_field_number)).Int()
if nanos <= -1e9 || nanos >= 1e9 || (secs > 0 && nanos < 0) || (secs < 0 && nanos > 0) {
return nil
}
x := fmt.Sprintf("%d.%09d", secs, int64(math.Abs(float64(nanos))))
if secs < 0 || nanos < 0 {
sign, secs, nanos = "-", -1*secs, -1*nanos
}
x := fmt.Sprintf("%s%d.%09d", sign, secs, nanos)
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, "000")
x = strings.TrimSuffix(x, ".000")

5
internal/msgfmt/format_test.go
View File

@ -199,6 +199,11 @@ func TestFormat(t *testing.T) {
OptDuration: &durpb.Duration{Seconds: -1257894123, Nanos: -456789},
},
want: `{opt_duration:-1257894123.000456789s}`,
}, {
in: &textpb.KnownTypes{
OptDuration: &durpb.Duration{Seconds: 0, Nanos: -1},
},
want: `{opt_duration:-0.000000001s}`,
}, {
in: &textpb.KnownTypes{
OptBool: &wpb.BoolValue{},