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package storage
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
import (
"bytes"
"io/ioutil"
chk "gopkg.in/check.v1"
)
type PageBlobSuite struct{}
var _ = chk.Suite(&PageBlobSuite{})
func (s *PageBlobSuite) TestPutPageBlob(c *chk.C) {
cli := getBlobClient(c)
rec := cli.client.appendRecorder(c)
defer rec.Stop()
cnt := cli.GetContainerReference(containerName(c))
b := cnt.GetBlobReference(blobName(c))
c.Assert(cnt.Create(nil), chk.IsNil)
defer cnt.Delete(nil)
size := int64(10 * 1024 * 1024)
b.Properties.ContentLength = size
c.Assert(b.PutPageBlob(nil), chk.IsNil)
// Verify
err := b.GetProperties(nil)
c.Assert(err, chk.IsNil)
c.Assert(b.Properties.ContentLength, chk.Equals, size)
c.Assert(b.Properties.BlobType, chk.Equals, BlobTypePage)
}
func (s *PageBlobSuite) TestPutPagesUpdate(c *chk.C) {
cli := getBlobClient(c)
rec := cli.client.appendRecorder(c)
defer rec.Stop()
cnt := cli.GetContainerReference(containerName(c))
b := cnt.GetBlobReference(blobName(c))
c.Assert(cnt.Create(nil), chk.IsNil)
defer cnt.Delete(nil)
size := int64(10 * 1024 * 1024) // larger than we'll use
b.Properties.ContentLength = size
c.Assert(b.PutPageBlob(nil), chk.IsNil)
chunk1 := content(1024)
chunk2 := content(512)
// Append chunks
blobRange := BlobRange{
End: uint64(len(chunk1) - 1),
}
c.Assert(b.WriteRange(blobRange, bytes.NewReader(chunk1), nil), chk.IsNil)
blobRange.Start = uint64(len(chunk1))
blobRange.End = uint64(len(chunk1) + len(chunk2) - 1)
c.Assert(b.WriteRange(blobRange, bytes.NewReader(chunk2), nil), chk.IsNil)
// Verify contents
options := GetBlobRangeOptions{
Range: &BlobRange{
End: uint64(len(chunk1) + len(chunk2) - 1),
},
}
out, err := b.GetRange(&options)
c.Assert(err, chk.IsNil)
defer out.Close()
blobContents, err := ioutil.ReadAll(out)
c.Assert(err, chk.IsNil)
c.Assert(blobContents, chk.DeepEquals, append(chunk1, chunk2...))
// Overwrite first half of chunk1
chunk0 := content(512)
blobRange.Start = 0
blobRange.End = uint64(len(chunk0) - 1)
c.Assert(b.WriteRange(blobRange, bytes.NewReader(chunk0), nil), chk.IsNil)
// Verify contents
out, err = b.GetRange(&options)
c.Assert(err, chk.IsNil)
defer out.Close()
blobContents, err = ioutil.ReadAll(out)
c.Assert(err, chk.IsNil)
c.Assert(blobContents, chk.DeepEquals, append(append(chunk0, chunk1[512:]...), chunk2...))
}
func (s *PageBlobSuite) TestPutPagesClear(c *chk.C) {
cli := getBlobClient(c)
rec := cli.client.appendRecorder(c)
defer rec.Stop()
cnt := cli.GetContainerReference(containerName(c))
b := cnt.GetBlobReference(blobName(c))
c.Assert(cnt.Create(nil), chk.IsNil)
defer cnt.Delete(nil)
size := int64(10 * 1024 * 1024) // larger than we'll use
b.Properties.ContentLength = size
c.Assert(b.PutPageBlob(nil), chk.IsNil)
// Put 0-2047
chunk := content(2048)
blobRange := BlobRange{
End: 2047,
}
c.Assert(b.WriteRange(blobRange, bytes.NewReader(chunk), nil), chk.IsNil)
// Clear 512-1023
blobRange.Start = 512
blobRange.End = 1023
c.Assert(b.ClearRange(blobRange, nil), chk.IsNil)
// Verify contents
options := GetBlobRangeOptions{
Range: &BlobRange{
Start: 0,
End: 2047,
},
}
out, err := b.GetRange(&options)
c.Assert(err, chk.IsNil)
contents, err := ioutil.ReadAll(out)
c.Assert(err, chk.IsNil)
defer out.Close()
c.Assert(contents, chk.DeepEquals, append(append(chunk[:512], make([]byte, 512)...), chunk[1024:]...))
}
func (s *PageBlobSuite) TestGetPageRanges(c *chk.C) {
cli := getBlobClient(c)
rec := cli.client.appendRecorder(c)
defer rec.Stop()
cnt := cli.GetContainerReference(containerName(c))
c.Assert(cnt.Create(nil), chk.IsNil)
defer cnt.Delete(nil)
size := int64(10 * 1024) // larger than we'll use
// Get page ranges on empty blob
blob1 := cnt.GetBlobReference(blobName(c, "1"))
blob1.Properties.ContentLength = size
c.Assert(blob1.PutPageBlob(nil), chk.IsNil)
out, err := blob1.GetPageRanges(nil)
c.Assert(err, chk.IsNil)
c.Assert(len(out.PageList), chk.Equals, 0)
// Get page ranges with just one range
blob2 := cnt.GetBlobReference(blobName(c, "2"))
blob2.Properties.ContentLength = size
c.Assert(blob2.PutPageBlob(nil), chk.IsNil)
blobRange := []BlobRange{
{End: 511},
{Start: 1024, End: 2047},
}
c.Assert(blob2.WriteRange(blobRange[0], bytes.NewReader(content(512)), nil), chk.IsNil)
out, err = blob2.GetPageRanges(nil)
c.Assert(err, chk.IsNil)
c.Assert(len(out.PageList), chk.Equals, 1)
expected := []PageRange{
{End: 511},
{Start: 1024, End: 2047},
}
c.Assert(out.PageList[0], chk.Equals, expected[0])
// Get page ranges with just two range
blob3 := cnt.GetBlobReference(blobName(c, "3"))
blob3.Properties.ContentLength = size
c.Assert(blob3.PutPageBlob(nil), chk.IsNil)
for _, br := range blobRange {
c.Assert(blob3.WriteRange(br, bytes.NewReader(content(int(br.End-br.Start+1))), nil), chk.IsNil)
}
out, err = blob3.GetPageRanges(nil)
c.Assert(err, chk.IsNil)
c.Assert(len(out.PageList), chk.Equals, 2)
c.Assert(out.PageList, chk.DeepEquals, expected)
}
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