Merge pull request #75 from ahmetalpbalkan/large-stream

Modify TestWriteReadLargeStreams to write in one shot
This commit is contained in:
Stephen Day 2015-01-26 11:37:51 -08:00
commit a1547ab751

View file

@ -259,16 +259,13 @@ func (suite *DriverSuite) TestWriteReadLargeStreams(c *check.C) {
defer suite.StorageDriver.Delete(firstPart(filename))
checksum := sha1.New()
var offset int64
var chunkSize int64 = 1024 * 1024
var fileSize int64 = 5 * 1024 * 1024 * 1024
contents := newRandReader(fileSize)
written, err := suite.StorageDriver.WriteStream(filename, 0, io.TeeReader(contents, checksum))
c.Assert(err, check.IsNil)
c.Assert(written, check.Equals, fileSize)
for i := 0; i < 5*1024; i++ {
contents := randomContents(chunkSize)
written, err := suite.StorageDriver.WriteStream(filename, offset, io.TeeReader(bytes.NewReader(contents), checksum))
c.Assert(err, check.IsNil)
c.Assert(written, check.Equals, chunkSize)
offset += chunkSize
}
reader, err := suite.StorageDriver.ReadStream(filename, 0)
c.Assert(err, check.IsNil)
@ -1088,6 +1085,29 @@ func randomContents(length int64) []byte {
return b
}
type randReader struct {
r int64
m sync.Mutex
}
func (rr *randReader) Read(p []byte) (n int, err error) {
rr.m.Lock()
defer rr.m.Unlock()
for i := 0; i < len(p) && rr.r > 0; i++ {
p[i] = byte(rand.Intn(255))
n++
rr.r--
}
if rr.r == 0 {
err = io.EOF
}
return
}
func newRandReader(n int64) *randReader {
return &randReader{r: n}
}
func firstPart(filePath string) string {
if filePath == "" {
return "/"