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Fixed unexpected 'pack file cannot be listed' error

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Fixes #1633

Signed-off-by: Igor Fedorenko <igor@ifedorenko.com>
This commit is contained in:
Igor Fedorenko 2018-02-20 21:28:37 -05:00
parent 9f0605766c
commit 19e7803ac6
3 changed files with 35 additions and 12 deletions
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26
internal/pack/pack_internal_test.go
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@ -22,11 +22,11 @@ func (rd *countingReaderAt) ReadAt(p []byte, off int64) (n int, err error) {
func TestReadHeaderEagerLoad(t *testing.T) {
testReadHeader := func(entryCount uint, expectedReadInvocationCount int) {
testReadHeader := func(dataSize int, entryCount uint, expectedReadInvocationCount int) {
expectedHeader := rtest.Random(0, int(entryCount*entrySize)+crypto.Extension)
buf := &bytes.Buffer{}
buf.Write(rtest.Random(0, 100)) // pack blobs data
buf.Write(rtest.Random(0, dataSize)) // pack blobs data
buf.Write(expectedHeader) // pack header
binary.Write(buf, binary.LittleEndian, uint32(len(expectedHeader))) // pack header length
@ -39,8 +39,22 @@ func TestReadHeaderEagerLoad(t *testing.T) {
rtest.Equals(t, expectedReadInvocationCount, rd.invocationCount)
}
testReadHeader(1, 1)
testReadHeader(eagerEntries-1, 1)
testReadHeader(eagerEntries, 1)
testReadHeader(eagerEntries+1, 2)
// basic
testReadHeader(100, 1, 1)
// header entries == eager entries
testReadHeader(100, eagerEntries-1, 1)
testReadHeader(100, eagerEntries, 1)
testReadHeader(100, eagerEntries+1, 2)
// file size == eager header load size
eagerLoadSize := int((eagerEntries * entrySize) + crypto.Extension)
headerSize := int(1*entrySize) + crypto.Extension
dataSize := eagerLoadSize - headerSize - binary.Size(uint32(0))
testReadHeader(dataSize-1, 1, 1)
testReadHeader(dataSize, 1, 1)
testReadHeader(dataSize+1, 1, 1)
testReadHeader(dataSize+2, 1, 1)
testReadHeader(dataSize+3, 1, 1)
testReadHeader(dataSize+4, 1, 1)
}