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2 Commits
7f9717266f
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b26c64d0d9
Author | SHA1 | Date | |
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b26c64d0d9 | |||
930e5b9b4f |
@@ -7,17 +7,6 @@ import (
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type GSM7Coder struct{}
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var masks = []byte{
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0b00000000,
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0b00000001,
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0b00000011,
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0b00000111,
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0b00001111,
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0b00011111,
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0b00111111,
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0b01111111,
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0b11111111,
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}
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func (c *GSM7Coder) Encode(s string, buf *bytes.Buffer) error {
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// utf8 := *(*[]byte)(unsafe.Pointer(&s))
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@@ -33,14 +22,14 @@ func (c *GSM7Coder) Encode(s string, buf *bytes.Buffer) error {
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if bindex == 0 {
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continue
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}
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mask := masks[bitshift]
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mask := byte(255 >> (8 - bitshift))
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masked := (mask & septet) << (8 - bitshift)
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utf8[bindex-offset] |= masked
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utf8[bindex] >>= bitshift
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buf.WriteByte(utf8[bindex-offset])
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bitshift++
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if utf8[bindex] == 0 {
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if bitshift == 8 {
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offset++
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bitshift = 1
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}
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@@ -22,6 +22,40 @@ func TestGSM7EncodeSimpleASCIIString(t *testing.T) {
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}
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}
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func TestGSM7EncodeComplexASCIIString(t *testing.T) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := "Golden rays play, Chasing night away."
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expected := []byte{0b11000111, 0b00110111, 0b10011011, 0b01011100, 0b01110110, 0b10000011, 0b11100100, 0b11100001, 0b11111100, 0b00011100, 0b00000100, 0b01100111, 0b10000111, 0b11110011, 0b00101100, 0b11010000, 0b00010000, 0b00011101, 0b10011110, 0b10100111, 0b11011101, 0b01100111, 0b10010000, 0b00111011, 0b01111101, 0b01000110, 0b11010011, 0b01000001, 0b11100001, 0b01111011, 0b00111000, 0b11101111, 0b00000010}
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err := coder.Encode(input, &buf)
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if err != nil {
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t.Errorf("Expected no error, but got %v", err)
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}
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if !bytes.Equal(buf.Bytes(), expected) {
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t.Errorf("Expected %v, but got %v", expected, buf.Bytes())
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}
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}
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func TestGSM7EncodeEmptyString(t *testing.T) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := ""
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expected := []byte{}
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err := coder.Encode(input, &buf)
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if err != nil {
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t.Errorf("Expected no error, but got %v", err)
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}
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if !bytes.Equal(buf.Bytes(), expected) {
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t.Errorf("Expected %v, but got %v", expected, buf.Bytes())
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}
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}
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func TestGSM7DecodeSimpleASCIIString(t *testing.T) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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@@ -40,20 +74,21 @@ func TestGSM7DecodeSimpleASCIIString(t *testing.T) {
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}
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}
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func TestGSM7EncodeEmptyString(t *testing.T) {
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func TestGSM7DecodeComplexASCIIString(t *testing.T) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := ""
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input := []byte{0b11010011, 0b10111010, 0b01111011, 0b10001110, 0b01001110, 0b10111011, 0b11001011}
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expected := []byte{}
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err := coder.Encode(input, &buf)
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expected := "Golden rays play, Chasing night away."
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buf.Write(input)
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output, err := coder.Decode(&buf)
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if err != nil {
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t.Errorf("Expected no error, but got %v", err)
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}
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if !bytes.Equal(buf.Bytes(), expected) {
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t.Errorf("Expected %v, but got %v", expected, buf.Bytes())
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if output != expected {
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t.Errorf("Expected %v, but got %v", expected, output)
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}
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}
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