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package compiler
import "testing"
func TestExcludeByteRangeSequence(t *testing.T) {
tests := []struct {
b1 []byteRange
b2 []byteRange
excluded [][]byteRange
}{
// 1 Byte
{
b1: newByteRangeSeq([]byte{0x00}, []byte{0x00}),
b2: newByteRangeSeq([]byte{0x00}, []byte{0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x01}, []byte{0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0xff}, []byte{0xff}),
b2: newByteRangeSeq([]byte{0x00}, []byte{0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00}, []byte{0xfe}),
},
},
{
b1: newByteRangeSeq([]byte{0xc0}, []byte{0xcf}),
b2: newByteRangeSeq([]byte{0x00}, []byte{0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00}, []byte{0xbf}),
newByteRangeSeq([]byte{0xd0}, []byte{0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0x00}, []byte{0xff}),
b2: newByteRangeSeq([]byte{0xc0}, []byte{0xcf}),
excluded: nil,
},
{
b1: newByteRangeSeq([]byte{0x00}, []byte{0xff}),
b2: newByteRangeSeq([]byte{0x00}, []byte{0xff}),
excluded: nil,
},
// 2 Byte
{
b1: newByteRangeSeq([]byte{0x00, 0x00}, []byte{0x00, 0x00}),
b2: newByteRangeSeq([]byte{0x00, 0x00}, []byte{0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x01}, []byte{0x00, 0xff}),
newByteRangeSeq([]byte{0x01, 0x00}, []byte{0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0xff, 0xff}, []byte{0xff, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00}, []byte{0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00}, []byte{0xfe, 0xff}),
newByteRangeSeq([]byte{0xff, 0x00}, []byte{0xff, 0xfe}),
},
},
{
b1: newByteRangeSeq([]byte{0xc0, 0xc0}, []byte{0xc0, 0xc0}),
b2: newByteRangeSeq([]byte{0x00, 0x00}, []byte{0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00}, []byte{0xbf, 0xff}),
newByteRangeSeq([]byte{0xc0, 0x00}, []byte{0xc0, 0xbf}),
newByteRangeSeq([]byte{0xc0, 0xc1}, []byte{0xc0, 0xff}),
newByteRangeSeq([]byte{0xc1, 0x00}, []byte{0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0xc0, 0x00}, []byte{0xc0, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00}, []byte{0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00}, []byte{0xbf, 0xff}),
newByteRangeSeq([]byte{0xc1, 0x00}, []byte{0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0x00, 0x00}, []byte{0xff, 0xff}),
b2: newByteRangeSeq([]byte{0xc0, 0xc0}, []byte{0xc0, 0xc0}),
excluded: nil,
},
{
b1: newByteRangeSeq([]byte{0x00, 0x00}, []byte{0xff, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00}, []byte{0xff, 0xff}),
excluded: nil,
},
// 3 Byte
{
b1: newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0x00, 0x00, 0x00}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x01}, []byte{0x00, 0x00, 0xff}),
newByteRangeSeq([]byte{0x00, 0x01, 0x00}, []byte{0x00, 0xff, 0xff}),
newByteRangeSeq([]byte{0x01, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0xff, 0xff, 0xff}, []byte{0xff, 0xff, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xfe, 0xff, 0xff}),
newByteRangeSeq([]byte{0xff, 0x00, 0x00}, []byte{0xff, 0xfe, 0xff}),
newByteRangeSeq([]byte{0xff, 0xff, 0x00}, []byte{0xff, 0xff, 0xfe}),
},
},
{
b1: newByteRangeSeq([]byte{0xc0, 0xc0, 0xc0}, []byte{0xc0, 0xc0, 0xc0}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xbf, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc0, 0x00, 0x00}, []byte{0xc0, 0xbf, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc0, 0x00}, []byte{0xc0, 0xc0, 0xbf}),
newByteRangeSeq([]byte{0xc0, 0xc0, 0xc1}, []byte{0xc0, 0xc0, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc1, 0x00}, []byte{0xc0, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc1, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0xc0, 0xc0, 0x00}, []byte{0xc0, 0xc0, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xbf, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc0, 0x00, 0x00}, []byte{0xc0, 0xbf, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc1, 0x00}, []byte{0xc0, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc1, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0xc0, 0x00, 0x00}, []byte{0xc0, 0xff, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xbf, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc1, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
b2: newByteRangeSeq([]byte{0xff, 0xff, 0xff}, []byte{0xff, 0xff, 0xff}),
excluded: nil,
},
{
b1: newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff}),
excluded: nil,
},
// 4 Byte
{
b1: newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0x00, 0x00, 0x00, 0x00}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x01}, []byte{0x00, 0x00, 0x00, 0xff}),
newByteRangeSeq([]byte{0x00, 0x00, 0x01, 0x00}, []byte{0x00, 0x00, 0xff, 0xff}),
newByteRangeSeq([]byte{0x00, 0x01, 0x00, 0x00}, []byte{0x00, 0xff, 0xff, 0xff}),
newByteRangeSeq([]byte{0x01, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0xff, 0xff, 0xff, 0xff}, []byte{0xff, 0xff, 0xff, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xfe, 0xff, 0xff, 0xff}),
newByteRangeSeq([]byte{0xff, 0x00, 0x00, 0x00}, []byte{0xff, 0xfe, 0xff, 0xff}),
newByteRangeSeq([]byte{0xff, 0xff, 0x00, 0x00}, []byte{0xff, 0xff, 0xfe, 0xff}),
newByteRangeSeq([]byte{0xff, 0xff, 0xff, 0x00}, []byte{0xff, 0xff, 0xff, 0xfe}),
},
},
{
b1: newByteRangeSeq([]byte{0xc0, 0xc0, 0xc0, 0xc0}, []byte{0xc0, 0xc0, 0xc0, 0xc0}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xbf, 0xff, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc0, 0x00, 0x00, 0x00}, []byte{0xc0, 0xbf, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc0, 0x00, 0x00}, []byte{0xc0, 0xc0, 0xbf, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc0, 0xc0, 0x00}, []byte{0xc0, 0xc0, 0xc0, 0xbf}),
newByteRangeSeq([]byte{0xc0, 0xc0, 0xc0, 0xc1}, []byte{0xc0, 0xc0, 0xc0, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc0, 0xc1, 0x00}, []byte{0xc0, 0xc0, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc1, 0x00, 0x00}, []byte{0xc0, 0xff, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc1, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0xc0, 0xc0, 0xc0, 0x00}, []byte{0xc0, 0xc0, 0xc0, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xbf, 0xff, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc0, 0x00, 0x00, 0x00}, []byte{0xc0, 0xbf, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc0, 0x00, 0x00}, []byte{0xc0, 0xc0, 0xbf, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc0, 0xc1, 0x00}, []byte{0xc0, 0xc0, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc1, 0x00, 0x00}, []byte{0xc0, 0xff, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc1, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0xc0, 0xc0, 0x00, 0x00}, []byte{0xc0, 0xc0, 0xff, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xbf, 0xff, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc0, 0x00, 0x00, 0x00}, []byte{0xc0, 0xbf, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc0, 0xc1, 0x00, 0x00}, []byte{0xc0, 0xff, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc1, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0xc0, 0x00, 0x00, 0x00}, []byte{0xc0, 0xff, 0xff, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
excluded: [][]byteRange{
newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xbf, 0xff, 0xff, 0xff}),
newByteRangeSeq([]byte{0xc1, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
},
},
{
b1: newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
b2: newByteRangeSeq([]byte{0xc0, 0xc0, 0xc0, 0xc0}, []byte{0xc0, 0xc0, 0xc0, 0xc0}),
excluded: nil,
},
{
b1: newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
b2: newByteRangeSeq([]byte{0x00, 0x00, 0x00, 0x00}, []byte{0xff, 0xff, 0xff, 0xff}),
excluded: nil,
},
}
for _, tt := range tests {
excluded := excludeByteRangeSequence(tt.b1, tt.b2)
t.Logf("b1: %v, b2: %v", tt.b1, tt.b2)
t.Logf("excluded: %+v", excluded)
if len(excluded) != len(tt.excluded) {
t.Errorf("unexpected results; expected: %+v, actual: %+v", tt.excluded, excluded)
}
for _, expectedSeq := range tt.excluded {
found := false
for _, actualSeq := range excluded {
mismatched := false
for i := 0; i < len(expectedSeq); i++ {
if actualSeq[i] != expectedSeq[i] {
mismatched = true
break
}
}
if mismatched {
continue
}
found = true
break
}
if !found {
t.Errorf("an expected byte range sequence was not found: %+v", expectedSeq)
}
}
}
}
func newByteRangeSeq(from, to []byte) []byteRange {
seq, err := newByteRangeSequence(from, to)
if err != nil {
panic(err)
}
return seq
}
|
