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repository: implement pack compression

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This commit is contained in:
Michael Eischer 2022-02-13 17:24:09 +01:00
parent 362ab06023
commit 6fb408d90e
10 changed files with 184 additions and 84 deletions
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14
internal/pack/pack_internal_test.go
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@ -23,9 +23,10 @@ func TestParseHeaderEntry(t *testing.T) {
buf := new(bytes.Buffer)
_ = binary.Write(buf, binary.LittleEndian, &h)
b, err := parseHeaderEntry(buf.Bytes())
b, size, err := parseHeaderEntry(buf.Bytes())
rtest.OK(t, err)
rtest.Equals(t, restic.DataBlob, b.Type)
rtest.Equals(t, plainEntrySize, size)
t.Logf("%v %v", h.ID, b.ID)
rtest.Assert(t, bytes.Equal(h.ID[:], b.ID[:]), "id mismatch")
rtest.Equals(t, uint(h.Length), b.Length)
@ -34,14 +35,14 @@ func TestParseHeaderEntry(t *testing.T) {
buf.Reset()
_ = binary.Write(buf, binary.LittleEndian, &h)
b, err = parseHeaderEntry(buf.Bytes())
b, _, err = parseHeaderEntry(buf.Bytes())
rtest.Assert(t, err != nil, "no error for invalid type")
h.Type = 0
buf.Reset()
_ = binary.Write(buf, binary.LittleEndian, &h)
b, err = parseHeaderEntry(buf.Bytes()[:entrySize-1])
b, _, err = parseHeaderEntry(buf.Bytes()[:plainEntrySize-1])
rtest.Assert(t, err != nil, "no error for short input")
}
@ -97,7 +98,8 @@ func TestReadHeaderEagerLoad(t *testing.T) {
func TestReadRecords(t *testing.T) {
testReadRecords := func(dataSize, entryCount, totalRecords int) {
totalHeader := rtest.Random(0, totalRecords*int(entrySize)+crypto.Extension)
off := len(totalHeader) - (entryCount*int(entrySize) + crypto.Extension)
bufSize := entryCount*int(entrySize) + crypto.Extension
off := len(totalHeader) - bufSize
if off < 0 {
off = 0
}
@ -110,10 +112,10 @@ func TestReadRecords(t *testing.T) {
rd := bytes.NewReader(buf.Bytes())
header, count, err := readRecords(rd, int64(rd.Len()), entryCount)
header, count, err := readRecords(rd, int64(rd.Len()), bufSize+4)
rtest.OK(t, err)
rtest.Equals(t, len(totalHeader)+4, count)
rtest.Equals(t, expectedHeader, header)
rtest.Equals(t, totalRecords, count)
}
// basic