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path: root/compiler/byte_test.go
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Diffstat (limited to 'compiler/byte_test.go')
-rw-r--r--compiler/byte_test.go263
1 files changed, 263 insertions, 0 deletions
diff --git a/compiler/byte_test.go b/compiler/byte_test.go
new file mode 100644
index 0000000..c298501
--- /dev/null
+++ b/compiler/byte_test.go
@@ -0,0 +1,263 @@
+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
+}
generated by cgit v1.2.3 (git 2.49.0) at 2025-07-13 00:40:42 +0000