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archive/tar: fix error message

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Write should return ErrWriteAfterClose instead
of ErrWriteTooLong when called after Close.

Change-Id: If5ec4ef924e4c56489e0d426976f7e5fad79be9b
Reviewed-on: https://go-review.googlesource.com/9259
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
This commit is contained in:
David du Colombier 2015-04-24 15:37:53 +02:00 committed by Vincent Batts
parent bf82db1f0d
commit 6e38573de2
2 changed files with 18 additions and 1 deletions
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2
archive/tar/writer.go
View file

@ -355,7 +355,7 @@ func paxHeader(msg string) string {
// hdr.Size bytes are written after WriteHeader.
func (tw *Writer) Write(b []byte) (n int, err error) {
if tw.closed {
err = ErrWriteTooLong
err = ErrWriteAfterClose
return
}
overwrite := false

17
archive/tar/writer_test.go
View file

@ -489,3 +489,20 @@ func TestValidTypeflagWithPAXHeader(t *testing.T) {
}
}
}
func TestWriteAfterClose(t *testing.T) {
var buffer bytes.Buffer
tw := NewWriter(&buffer)
hdr := &Header{
Name: "small.txt",
Size: 5,
}
if err := tw.WriteHeader(hdr); err != nil {
t.Fatalf("Failed to write header: %s", err)
}
tw.Close()
if _, err := tw.Write([]byte("Kilts")); err != ErrWriteAfterClose {
t.Fatalf("Write: got %v; want ErrWriteAfterClose", err)
}
}