storage: working on packing and unpacking

tar/storage/packer_test.go

@@ -0,0 +1,58 @@
+package storage
+
+import (
+	"bytes"
+	"io"
+	"testing"
+)
+
+func TestJsonPackerUnpacker(t *testing.T) {
+	e := []Entry{
+		Entry{
+			Type:    SegmentType,
+			Payload: []byte("how"),
+		},
+		Entry{
+			Type:    SegmentType,
+			Payload: []byte("y'all"),
+		},
+		Entry{
+			Type:    FileType,
+			Name:    "./hurr.txt",
+			Payload: []byte("deadbeef"),
+		},
+		Entry{
+			Type:    SegmentType,
+			Payload: []byte("doin"),
+		},
+	}
+
+	buf := []byte{}
+	b := bytes.NewBuffer(buf)
+
+	func() {
+		jp := NewJsonPacker(b)
+		for i := range e {
+			if _, err := jp.AddEntry(e[i]); err != nil {
+				t.Error(err)
+			}
+		}
+	}()
+
+	t.Errorf("%#v", b.String())
+	b = bytes.NewBuffer(b.Bytes())
+	func() {
+		jup := NewJsonUnpacker(b)
+		for {
+			entry, err := jup.Next()
+			if err != nil {
+				if err == io.EOF {
+					break
+				}
+				t.Error(err)
+			}
+			t.Errorf("%#v", entry)
+		}
+	}()
+
+}