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package objfile
import (
"bytes"
"encoding/base64"
"fmt"
"io"
. "gopkg.in/check.v1"
"gopkg.in/src-d/go-git.v3/core"
)
type SuiteWriter struct{}
var _ = Suite(&SuiteWriter{})
func (s *SuiteWriter) TestWriteObjfile(c *C) {
for k, fixture := range objfileFixtures {
comment := fmt.Sprintf("test %d: ", k)
hash := core.NewHash(fixture.hash)
content, _ := base64.StdEncoding.DecodeString(fixture.content)
buffer := new(bytes.Buffer)
// Write the data out to the buffer
testWriter(c, buffer, hash, fixture.t, content, comment)
// Read the data back in from the buffer to be sure it matches
testReader(c, buffer, hash, fixture.t, content, comment)
}
}
func testWriter(c *C, dest io.Writer, hash core.Hash, typ core.ObjectType, content []byte, comment string) {
length := int64(len(content))
w, err := NewWriter(dest, typ, length)
c.Assert(err, IsNil)
c.Assert(w.Type(), Equals, typ)
c.Assert(w.Size(), Equals, length)
written, err := io.Copy(w, bytes.NewReader(content))
c.Assert(err, IsNil)
c.Assert(written, Equals, length)
c.Assert(w.Size(), Equals, int64(len(content)))
c.Assert(w.Hash(), Equals, hash) // Test Hash() before close
c.Assert(w.Close(), IsNil)
c.Assert(w.Hash(), Equals, hash) // Test Hash() after close
_, err = w.Write([]byte{1})
c.Assert(err, Equals, ErrClosed)
}
func (s *SuiteWriter) TestWriteOverflow(c *C) {
w, err := NewWriter(new(bytes.Buffer), core.BlobObject, 8)
c.Assert(err, IsNil)
_, err = w.Write([]byte("1234"))
c.Assert(err, IsNil)
_, err = w.Write([]byte("56789"))
c.Assert(err, Equals, ErrOverflow)
}
func (s *SuiteWriter) TestNewWriterInvalidType(c *C) {
var t core.ObjectType
_, err := NewWriter(new(bytes.Buffer), t, 8)
c.Assert(err, Equals, core.ErrInvalidType)
}
func (s *SuiteWriter) TestNewWriterInvalidSize(c *C) {
_, err := NewWriter(new(bytes.Buffer), core.BlobObject, -1)
c.Assert(err, Equals, ErrNegativeSize)
_, err = NewWriter(new(bytes.Buffer), core.BlobObject, -1651860)
c.Assert(err, Equals, ErrNegativeSize)
}
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