88 lines
1.9 KiB
Go
88 lines
1.9 KiB
Go
package cryptfs
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import (
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"testing"
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)
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type testRange struct {
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offset uint64
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length uint64
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}
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func TestSplitRange(t *testing.T) {
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var ranges []testRange
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ranges = append(ranges, testRange{0, 70000},
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testRange{0, 10},
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testRange{234, 6511},
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testRange{65444, 54},
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testRange{0, 1024*1024},
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testRange{0, 65536},
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testRange{6654, 8945})
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key := make([]byte, KEY_LEN)
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f := NewCryptFS(key, true)
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for _, r := range ranges {
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parts := f.SplitRange(r.offset, r.length)
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var lastBlockNo uint64 = 1<<63
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for _, p := range parts {
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if p.BlockNo == lastBlockNo {
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t.Errorf("Duplicate block number %d", p.BlockNo)
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}
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lastBlockNo = p.BlockNo
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if p.Length > DEFAULT_PLAINBS || p.Skip >= DEFAULT_PLAINBS {
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t.Errorf("Test fail: n=%d, length=%d, offset=%d\n", p.BlockNo, p.Length, p.Skip)
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}
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}
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}
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}
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func TestCiphertextRange(t *testing.T) {
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var ranges []testRange
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ranges = append(ranges, testRange{0, 70000},
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testRange{0, 10},
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testRange{234, 6511},
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testRange{65444, 54},
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testRange{6654, 8945})
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key := make([]byte, KEY_LEN)
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f := NewCryptFS(key, true)
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for _, r := range ranges {
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alignedOffset, alignedLength, skipBytes := f.CiphertextRange(r.offset, r.length)
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if alignedLength < r.length {
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t.Errorf("alignedLength=%s is smaller than length=%d", alignedLength, r.length)
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}
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if (alignedOffset - HEADER_LEN)%f.cipherBS != 0 {
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t.Errorf("alignedOffset=%d is not aligned", alignedOffset)
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}
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if r.offset%f.plainBS != 0 && skipBytes == 0 {
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t.Errorf("skipBytes=0")
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}
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}
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}
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func TestBlockNo(t *testing.T) {
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key := make([]byte, KEY_LEN)
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f := NewCryptFS(key, true)
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b := f.BlockNoCipherOff(788)
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if b != 0 {
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t.Errorf("actual: %d", b)
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}
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b = f.BlockNoCipherOff(HEADER_LEN + f.CipherBS())
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if b != 1 {
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t.Errorf("actual: %d", b)
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}
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b = f.BlockNoPlainOff(788)
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if b != 0 {
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t.Errorf("actual: %d", b)
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}
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b = f.BlockNoPlainOff(f.PlainBS())
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if b != 1 {
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t.Errorf("actual: %d", b)
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}
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}
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