package sealing import ( "testing" "github.com/stretchr/testify/assert" "github.com/filecoin-project/go-state-types/abi" ) func testFill(t *testing.T, n abi.UnpaddedPieceSize, exp []abi.UnpaddedPieceSize) { f, err := fillersFromRem(n) assert.NoError(t, err) assert.Equal(t, exp, f) var sum abi.UnpaddedPieceSize for _, u := range f { sum += u } assert.Equal(t, n, sum) } func TestFillersFromRem(t *testing.T) { for i := 8; i < 32; i++ { // single ub := abi.PaddedPieceSize(uint64(1) << i).Unpadded() testFill(t, ub, []abi.UnpaddedPieceSize{ub}) // 2 ub = abi.PaddedPieceSize(uint64(5) << i).Unpadded() ub1 := abi.PaddedPieceSize(uint64(1) << i).Unpadded() ub3 := abi.PaddedPieceSize(uint64(4) << i).Unpadded() testFill(t, ub, []abi.UnpaddedPieceSize{ub1, ub3}) // 4 ub = abi.PaddedPieceSize(uint64(15) << i).Unpadded() ub2 := abi.PaddedPieceSize(uint64(2) << i).Unpadded() ub4 := abi.PaddedPieceSize(uint64(8) << i).Unpadded() testFill(t, ub, []abi.UnpaddedPieceSize{ub1, ub2, ub3, ub4}) // different 2 ub = abi.PaddedPieceSize(uint64(9) << i).Unpadded() testFill(t, ub, []abi.UnpaddedPieceSize{ub1, ub4}) } }