Added objfile format used for loose git objects

1 files changed, 68 insertions, 0 deletions

diff --git a/formats/objfile/reader_test.go b/formats/objfile/reader_test.go
new file mode 100644
index 0000000..871eefe
--- /dev/null
+++ b/formats/objfile/reader_test.go
@@ -0,0 +1,68 @@
+package objfile
+
+import (
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"io"
+	"io/ioutil"
+
+	. "gopkg.in/check.v1"
+	"gopkg.in/src-d/go-git.v3/core"
+
+	"github.com/klauspost/compress/zlib"
+)
+
+type SuiteReader struct{}
+
+var _ = Suite(&SuiteReader{})
+
+func (s *SuiteReader) TestReadObjfile(c *C) {
+	for k, fixture := range objfileFixtures {
+		comment := fmt.Sprintf("test %d: ", k)
+		hash := core.NewHash(fixture.hash)
+		content, _ := base64.StdEncoding.DecodeString(fixture.content)
+		data, _ := base64.StdEncoding.DecodeString(fixture.data)
+
+		testReader(c, bytes.NewReader(data), hash, fixture.t, content, comment)
+	}
+}
+
+func testReader(c *C, source io.Reader, hash core.Hash, typ core.ObjectType, content []byte, comment string) {
+	r, err := NewReader(source)
+	c.Assert(err, IsNil)
+	c.Assert(r.Type(), Equals, typ)
+	rc, err := ioutil.ReadAll(r)
+	c.Assert(err, IsNil)
+	c.Assert(rc, DeepEquals, content, Commentf("%scontent=%s, expected=%s", base64.StdEncoding.EncodeToString(rc), base64.StdEncoding.EncodeToString(content)))
+	c.Assert(r.Hash(), Equals, hash) // Test Hash() before close
+	c.Assert(r.Close(), IsNil)
+	c.Assert(r.Hash(), Equals, hash) // Test Hash() after close
+}
+
+func (s *SuiteReader) TestReadEmptyObjfile(c *C) {
+	source := bytes.NewReader([]byte{})
+	_, err := NewReader(source)
+	c.Assert(err, Equals, ErrZLib)
+}
+
+func (s *SuiteReader) TestReadEmptyContent(c *C) {
+	b := new(bytes.Buffer)
+	w := zlib.NewWriter(b)
+	c.Assert(w.Close(), IsNil)
+	_, err := NewReader(b)
+	c.Assert(err, Equals, ErrHeader)
+}
+
+func (s *SuiteReader) TestReadGarbage(c *C) {
+	source := bytes.NewReader([]byte("!@#$RO!@NROSADfinq@o#irn@oirfn"))
+	_, err := NewReader(source)
+	c.Assert(err, Equals, ErrZLib)
+}
+
+func (s *SuiteReader) TestReadCorruptZLib(c *C) {
+	data, _ := base64.StdEncoding.DecodeString("eAFLysaalPUjBgAAAJsAHw")
+	source := bytes.NewReader(data)
+	_, err := NewReader(source)
+	c.Assert(err, NotNil)
+}