| package ioutils |
| |
| import ( |
| "bytes" |
| "io" |
| "io/ioutil" |
| "testing" |
| ) |
| |
| func TestBufReader(t *testing.T) { |
| reader, writer := io.Pipe() |
| bufreader := NewBufReader(reader) |
| |
| // Write everything down to a Pipe |
| // Usually, a pipe should block but because of the buffered reader, |
| // the writes will go through |
| done := make(chan bool) |
| go func() { |
| writer.Write([]byte("hello world")) |
| writer.Close() |
| done <- true |
| }() |
| |
| // Drain the reader *after* everything has been written, just to verify |
| // it is indeed buffering |
| <-done |
| output, err := ioutil.ReadAll(bufreader) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !bytes.Equal(output, []byte("hello world")) { |
| t.Error(string(output)) |
| } |
| } |