1 files changed, 17 insertions, 0 deletions
diff --git a/storage/filesystem/object_test.go b/storage/filesystem/object_test.go
index 5752f79..78ec20c 100644
--- a/storage/filesystem/object_test.go
+++ b/storage/filesystem/object_test.go
@@ -2,6 +2,7 @@ package filesystem
 
 import (
 	"fmt"
+	"io"
 	"io/ioutil"
 	"os"
 	"reflect"
@@ -62,6 +63,22 @@ func (s *FsSuite) TearDownSuite(c *C) {
 	}
 }
 
+func (s *FsSuite) TestWriter(c *C) {
+	r, err := os.Open("../../formats/packfile/fixtures/git-fixture.ofs-delta")
+	c.Assert(err, IsNil)
+
+	o := &ObjectStorage{}
+	w, err := o.Writer()
+	c.Assert(err, IsNil)
+
+	n, err := io.Copy(w, r)
+	c.Assert(err, IsNil)
+	c.Check(n, Equals, int64(85300))
+
+	c.Assert(o.index, HasLen, 28)
+	c.Assert(w.Close(), IsNil)
+}
+
 func (s *FsSuite) TestHashNotFound(c *C) {
 	sto := s.newObjectStorage(c, "binary-relations")
 	types := []core.ObjectType{core.AnyObject, core.TagObject, core.CommitObject, core.BlobObject, core.TreeObject}