func TestAddCat(t *testing.T) {
testwith.WithIpfs(t, func(node *ipfsutil.Node) {
// Dummy in-memory reader:
origData := []byte("Hello World")
buf := &bytes.Buffer{}
buf.Write(origData)
hash, err := ipfsutil.Add(node, buf)
if err != nil {
t.Errorf("Add of a simple file failed: %v", err)
return
}
reader, err := ipfsutil.Cat(node, hash)
if err != nil {
t.Errorf("Could not cat simple file: %v", err)
return
}
data, err := ioutil.ReadAll(reader)
if err != nil {
t.Errorf("Could not read back added data: %v", err)
return
}
if err = reader.Close(); err != nil {
t.Errorf("close(cat) failed: %v", err)
return
}
if !bytes.Equal(data, origData) {
t.Errorf("Data not equal: %v <- -> %v", string(data), string(origData))
}
})
}
// Stream opens a reader that yields the raw data of the file,
// already transparently decompressed and decrypted.
func (f *File) Stream(ipfs *ipfsutil.Node) (ipfsutil.Reader, error) {
log.Debugf(
"Stream `%s` (hash: %s) (key: %x)",
NodePath(f),
f.hash.B58String(),
f.key,
)
ipfsStream, err := ipfsutil.Cat(ipfs, f.hash.Multihash)
if err != nil {
return nil, err
}
return NewIpfsReader(f.key, ipfsStream)
}