package iotest

Import Path
	testing/iotest (on golang.org and go.dev)

Dependency Relation
	imports 3 packages, and imported by 0 packages

Involved Source Files
	    logger.go
	d-> reader.go
	    writer.go

Exported Type Names

	(none)
Exported Values

func DataErrReader(r io.Reader) io.Reader 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 HalfReader(r io.Reader) io.Reader HalfReader returns a Reader that implements Read by reading half as many requested bytes from r.
func NewReadLogger(prefix string, r io.Reader) io.Reader NewReadLogger returns a reader that behaves like r except that it logs (using log.Printf) each read to standard error, printing the prefix and the hexadecimal data read.
func NewWriteLogger(prefix string, w io.Writer) io.Writer NewWriteLogger returns a writer that behaves like w except that it logs (using log.Printf) each write to standard error, printing the prefix and the hexadecimal data written.
func OneByteReader(r io.Reader) io.Reader OneByteReader returns a Reader that implements each non-empty Read by reading one byte from r.
func TimeoutReader(r io.Reader) io.Reader TimeoutReader returns ErrTimeout on the second read with no data. Subsequent calls to read succeed.
func TruncateWriter(w io.Writer, n int64) io.Writer TruncateWriter returns a Writer that writes to w but stops silently after n bytes.