new plumbing package (#118)

* plumbing: now core was renamed to core, and formats and clients moved inside

1 files changed, 80 insertions, 0 deletions

diff --git a/plumbing/format/objfile/writer_test.go b/plumbing/format/objfile/writer_test.go
new file mode 100644
index 0000000..46dbea6
--- /dev/null
+++ b/plumbing/format/objfile/writer_test.go
@@ -0,0 +1,80 @@
+package objfile
+
+import (
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"io"
+
+	. "gopkg.in/check.v1"
+	"gopkg.in/src-d/go-git.v4/plumbing"
+)
+
+type SuiteWriter struct{}
+
+var _ = Suite(&SuiteWriter{})
+
+func (s *SuiteWriter) TestWriteObjfile(c *C) {
+	for k, fixture := range objfileFixtures {
+		buffer := bytes.NewBuffer(nil)
+
+		com := fmt.Sprintf("test %d: ", k)
+		hash := plumbing.NewHash(fixture.hash)
+		content, _ := base64.StdEncoding.DecodeString(fixture.content)
+
+		// Write the data out to the buffer
+		testWriter(c, buffer, hash, fixture.t, content)
+
+		// Read the data back in from the buffer to be sure it matches
+		testReader(c, buffer, hash, fixture.t, content, com)
+	}
+}
+
+func testWriter(c *C, dest io.Writer, hash plumbing.Hash, t plumbing.ObjectType, content []byte) {
+	size := int64(len(content))
+	w := NewWriter(dest)
+
+	err := w.WriteHeader(t, size)
+	c.Assert(err, IsNil)
+
+	written, err := io.Copy(w, bytes.NewReader(content))
+	c.Assert(err, IsNil)
+	c.Assert(written, Equals, size)
+
+	c.Assert(w.Hash(), Equals, hash)
+	c.Assert(w.Close(), IsNil)
+}
+
+func (s *SuiteWriter) TestWriteOverflow(c *C) {
+	buf := bytes.NewBuffer(nil)
+	w := NewWriter(buf)
+
+	err := w.WriteHeader(plumbing.BlobObject, 8)
+	c.Assert(err, IsNil)
+
+	n, err := w.Write([]byte("1234"))
+	c.Assert(err, IsNil)
+	c.Assert(n, Equals, 4)
+
+	n, err = w.Write([]byte("56789"))
+	c.Assert(err, Equals, ErrOverflow)
+	c.Assert(n, Equals, 4)
+}
+
+func (s *SuiteWriter) TestNewWriterInvalidType(c *C) {
+	buf := bytes.NewBuffer(nil)
+	w := NewWriter(buf)
+
+	err := w.WriteHeader(plumbing.InvalidObject, 8)
+	c.Assert(err, Equals, plumbing.ErrInvalidType)
+}
+
+func (s *SuiteWriter) TestNewWriterInvalidSize(c *C) {
+	buf := bytes.NewBuffer(nil)
+	w := NewWriter(buf)
+
+	err := w.WriteHeader(plumbing.BlobObject, -1)
+	c.Assert(err, Equals, ErrNegativeSize)
+	err = w.WriteHeader(plumbing.BlobObject, -1651860)
+	c.Assert(err, Equals, ErrNegativeSize)
+}