diff options
Diffstat (limited to 'src/pkg/testing/iotest/reader.go')
| -rw-r--r-- | src/pkg/testing/iotest/reader.go | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/pkg/testing/iotest/reader.go b/src/pkg/testing/iotest/reader.go index 441b9102d..a5bccca90 100644 --- a/src/pkg/testing/iotest/reader.go +++ b/src/pkg/testing/iotest/reader.go @@ -37,9 +37,11 @@ func (r *halfReader) Read(p []byte) (int, error) { return r.r.Read(p[0 : (len(p)+1)/2]) } -// DataErrReader returns a Reader that returns the final -// error with the last data read, instead of by itself with -// zero bytes of data. +// DataErrReader changes the way errors are handled by a Reader. Normally, a +// Reader returns an error (typically EOF) from the first Read call after the +// last piece of data is read. DataErrReader wraps a Reader and changes its +// behavior so the final error is returned along with the final data, instead +// of in the first call after the final data. func DataErrReader(r io.Reader) io.Reader { return &dataErrReader{r, nil, make([]byte, 1024)} } type dataErrReader struct { |