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package idxfile_test
import (
"bytes"
"encoding/base64"
"fmt"
"testing"
. "gopkg.in/src-d/go-git.v4/plumbing/format/idxfile"
"gopkg.in/src-d/go-git.v4/plumbing/format/packfile"
"gopkg.in/src-d/go-git.v4/storage/memory"
. "gopkg.in/check.v1"
"gopkg.in/src-d/go-git-fixtures.v3"
)
func Test(t *testing.T) { TestingT(t) }
type IdxfileSuite struct {
fixtures.Suite
}
var _ = Suite(&IdxfileSuite{})
func (s *IdxfileSuite) TestDecode(c *C) {
f := fixtures.Basic().One()
d := NewDecoder(f.Idx())
idx := &Idxfile{}
err := d.Decode(idx)
c.Assert(err, IsNil)
c.Assert(idx.Entries, HasLen, 31)
c.Assert(idx.Entries[0].Hash.String(), Equals, "1669dce138d9b841a518c64b10914d88f5e488ea")
c.Assert(idx.Entries[0].Offset, Equals, uint64(615))
c.Assert(idx.Entries[0].CRC32, Equals, uint32(3645019190))
c.Assert(fmt.Sprintf("%x", idx.IdxChecksum), Equals, "fb794f1ec720b9bc8e43257451bd99c4be6fa1c9")
c.Assert(fmt.Sprintf("%x", idx.PackfileChecksum), Equals, f.PackfileHash.String())
}
func (s *IdxfileSuite) TestDecodeCRCs(c *C) {
f := fixtures.Basic().ByTag("ofs-delta").One()
scanner := packfile.NewScanner(f.Packfile())
storage := memory.NewStorage()
pd, err := packfile.NewDecoder(scanner, storage)
c.Assert(err, IsNil)
_, err = pd.Decode()
c.Assert(err, IsNil)
i := pd.Index().ToIdxFile()
i.Version = VersionSupported
buf := bytes.NewBuffer(nil)
e := NewEncoder(buf)
_, err = e.Encode(i)
c.Assert(err, IsNil)
idx := &Idxfile{}
d := NewDecoder(buf)
err = d.Decode(idx)
c.Assert(err, IsNil)
c.Assert(idx.Entries, DeepEquals, i.Entries)
}
func (s *IdxfileSuite) TestDecode64bitsOffsets(c *C) {
f := bytes.NewBufferString(fixtureLarge4GB)
idx := &Idxfile{}
d := NewDecoder(base64.NewDecoder(base64.StdEncoding, f))
err := d.Decode(idx)
c.Assert(err, IsNil)
expected := map[string]uint64{
"303953e5aa461c203a324821bc1717f9b4fff895": 12,
"5296768e3d9f661387ccbff18c4dea6c997fd78c": 142,
"03fc8d58d44267274edef4585eaeeb445879d33f": 1601322837,
"8f3ceb4ea4cb9e4a0f751795eb41c9a4f07be772": 2646996529,
"e0d1d625010087f79c9e01ad9d8f95e1628dda02": 3452385606,
"90eba326cdc4d1d61c5ad25224ccbf08731dd041": 3707047470,
"bab53055add7bc35882758a922c54a874d6b1272": 5323223332,
"1b8995f51987d8a449ca5ea4356595102dc2fbd4": 5894072943,
"35858be9c6f5914cbe6768489c41eb6809a2bceb": 5924278919,
}
for _, e := range idx.Entries {
c.Assert(expected[e.Hash.String()], Equals, e.Offset)
}
}
func (s *IdxfileSuite) TestDecode64bitsOffsetsIdempotent(c *C) {
f := bytes.NewBufferString(fixtureLarge4GB)
expected := &Idxfile{}
d := NewDecoder(base64.NewDecoder(base64.StdEncoding, f))
err := d.Decode(expected)
c.Assert(err, IsNil)
buf := bytes.NewBuffer(nil)
_, err = NewEncoder(buf).Encode(expected)
c.Assert(err, IsNil)
idx := &Idxfile{}
err = NewDecoder(buf).Decode(idx)
c.Assert(err, IsNil)
c.Assert(idx.Entries, DeepEquals, expected.Entries)
}
const fixtureLarge4GB = `/3RPYwAAAAIAAAAAAAAAAAAAAAAAAAABAAAAAQAAAAEAAAABAAAAAQAAAAEAAAABAAAAAQAAAAEA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`
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