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package object
import (
"bytes"
"io"
"io/ioutil"
"github.com/go-git/go-git/v5/plumbing"
. "gopkg.in/check.v1"
)
type BlobsSuite struct {
BaseObjectsSuite
}
var _ = Suite(&BlobsSuite{})
func (s *BlobsSuite) TestBlobHash(c *C) {
o := &plumbing.MemoryObject{}
o.SetType(plumbing.BlobObject)
o.SetSize(3)
writer, err := o.Writer()
c.Assert(err, IsNil)
defer func() { c.Assert(writer.Close(), IsNil) }()
writer.Write([]byte{'F', 'O', 'O'})
blob := &Blob{}
c.Assert(blob.Decode(o), IsNil)
c.Assert(blob.Size, Equals, int64(3))
c.Assert(blob.Hash.String(), Equals, "d96c7efbfec2814ae0301ad054dc8d9fc416c9b5")
reader, err := blob.Reader()
c.Assert(err, IsNil)
defer func() { c.Assert(reader.Close(), IsNil) }()
data, err := ioutil.ReadAll(reader)
c.Assert(err, IsNil)
c.Assert(string(data), Equals, "FOO")
}
func (s *BlobsSuite) TestBlobDecodeEncodeIdempotent(c *C) {
var objects []*plumbing.MemoryObject
for _, str := range []string{"foo", "foo\n"} {
obj := &plumbing.MemoryObject{}
obj.Write([]byte(str))
obj.SetType(plumbing.BlobObject)
obj.Hash()
objects = append(objects, obj)
}
for _, object := range objects {
blob := &Blob{}
err := blob.Decode(object)
c.Assert(err, IsNil)
newObject := &plumbing.MemoryObject{}
err = blob.Encode(newObject)
c.Assert(err, IsNil)
newObject.Hash() // Ensure Hash is pre-computed before deep comparison
c.Assert(newObject, DeepEquals, object)
}
}
func (s *BlobsSuite) TestBlobIter(c *C) {
encIter, err := s.Storer.IterEncodedObjects(plumbing.BlobObject)
c.Assert(err, IsNil)
iter := NewBlobIter(s.Storer, encIter)
blobs := []*Blob{}
iter.ForEach(func(b *Blob) error {
blobs = append(blobs, b)
return nil
})
c.Assert(len(blobs) > 0, Equals, true)
iter.Close()
encIter, err = s.Storer.IterEncodedObjects(plumbing.BlobObject)
c.Assert(err, IsNil)
iter = NewBlobIter(s.Storer, encIter)
i := 0
for {
b, err := iter.Next()
if err == io.EOF {
break
}
c.Assert(err, IsNil)
c.Assert(b.ID(), Equals, blobs[i].ID())
c.Assert(b.Size, Equals, blobs[i].Size)
c.Assert(b.Type(), Equals, blobs[i].Type())
r1, err := b.Reader()
c.Assert(err, IsNil)
b1, err := ioutil.ReadAll(r1)
c.Assert(err, IsNil)
c.Assert(r1.Close(), IsNil)
r2, err := blobs[i].Reader()
c.Assert(err, IsNil)
b2, err := ioutil.ReadAll(r2)
c.Assert(err, IsNil)
c.Assert(r2.Close(), IsNil)
c.Assert(bytes.Compare(b1, b2), Equals, 0)
i++
}
iter.Close()
}
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