119 lines
2.5 KiB
Go
119 lines
2.5 KiB
Go
package torrent
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import (
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"testing"
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"github.com/RoaringBitmap/roaring"
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"github.com/stretchr/testify/assert"
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)
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func TestFileExclusivePieces(t *testing.T) {
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for _, _case := range []struct {
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off, size, pieceSize int64
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begin, end int
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}{
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{0, 2, 2, 0, 1},
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{1, 2, 2, 1, 1},
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{1, 4, 2, 1, 2},
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} {
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begin, end := byteRegionExclusivePieces(_case.off, _case.size, _case.pieceSize)
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assert.EqualValues(t, _case.begin, begin)
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assert.EqualValues(t, _case.end, end)
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}
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}
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type testFileBytesLeft struct {
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usualPieceSize int64
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firstPieceIndex int
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endPieceIndex int
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fileOffset int64
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fileLength int64
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completedPieces roaring.Bitmap
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expected int64
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name string
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}
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func (me testFileBytesLeft) Run(t *testing.T) {
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t.Run(me.name, func(t *testing.T) {
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assert.EqualValues(t, me.expected, fileBytesLeft(me.usualPieceSize, me.firstPieceIndex, me.endPieceIndex, me.fileOffset, me.fileLength, &me.completedPieces, func(pieceIndex int) int64 {
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return 0
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}))
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})
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}
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func TestFileBytesLeft(t *testing.T) {
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testFileBytesLeft{
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usualPieceSize: 3,
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firstPieceIndex: 1,
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endPieceIndex: 1,
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fileOffset: 1,
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fileLength: 0,
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expected: 0,
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name: "ZeroLengthFile",
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}.Run(t)
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testFileBytesLeft{
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usualPieceSize: 2,
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firstPieceIndex: 1,
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endPieceIndex: 2,
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fileOffset: 1,
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fileLength: 1,
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expected: 1,
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name: "EndOfSecondPiece",
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}.Run(t)
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testFileBytesLeft{
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usualPieceSize: 3,
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firstPieceIndex: 0,
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endPieceIndex: 1,
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fileOffset: 1,
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fileLength: 1,
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expected: 1,
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name: "FileInFirstPiece",
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}.Run(t)
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testFileBytesLeft{
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usualPieceSize: 3,
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firstPieceIndex: 0,
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endPieceIndex: 1,
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fileOffset: 1,
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fileLength: 1,
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expected: 1,
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name: "LandLocked",
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}.Run(t)
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testFileBytesLeft{
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usualPieceSize: 3,
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firstPieceIndex: 1,
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endPieceIndex: 3,
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fileOffset: 4,
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fileLength: 4,
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expected: 4,
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name: "TwoPieces",
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}.Run(t)
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testFileBytesLeft{
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usualPieceSize: 3,
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firstPieceIndex: 1,
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endPieceIndex: 4,
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fileOffset: 5,
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fileLength: 7,
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expected: 7,
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name: "ThreePieces",
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}.Run(t)
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testFileBytesLeft{
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usualPieceSize: 3,
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firstPieceIndex: 1,
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endPieceIndex: 4,
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fileOffset: 5,
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fileLength: 7,
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expected: 0,
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completedPieces: func() (ret roaring.Bitmap) {
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ret.AddRange(0, 5)
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return
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}(),
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name: "ThreePiecesCompletedAll",
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}.Run(t)
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}
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