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go-hexadeca
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Charles Iliya Krempeaux 2023-10-27 13:18:32 -07:00
parent 13ea41918d
commit 82f3f4f9d3
2 changed files with 705 additions and 0 deletions
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22
enc/bytes/encodebyte.go 100644
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package hexadecabytes
import (
"sourcecode.social/reiver/go-hexadeca/symbols/byte"
)
// EncodeByte encodes the value of a byte into hexadecimal.
func EncodeByte(value byte, symbolFunc func(byte)byte) (mostSignificant byte, leastSignificant byte) {
mostSignificant = symbolFunc( (0xf0 & value) >> 4 )
leastSignificant = symbolFunc( (0x0f & value) )
return
}
func EncodeByteUsingLowerCaseSymbols(value byte) (mostSignificant byte, leastSignificant byte) {
return EncodeByte(value, bytesymbols.LowerCase)
}
func EncodeByteUsingUpperCaseSymbols(value byte) (mostSignificant byte, leastSignificant byte) {
return EncodeByte(value, bytesymbols.UpperCase)
}

683
enc/bytes/encodebyte_test.go 100644
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package hexadecabytes_test
import (
"testing"
"sourcecode.social/reiver/go-hexadeca/enc/bytes"
)
func TestEncodeByteUsingLowerCaseSymbols(t *testing.T) {
tests := []struct{
Value byte
ExpectedMostSignificant byte
ExpectedLeastSignificant byte
}{
{
Value: 0x00,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '0',
},
{
Value: 0x01,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '1',
},
{
Value: 0x02,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '2',
},
{
Value: 0x03,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '3',
},
{
Value: 0x04,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '4',
},
{
Value: 0x05,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '5',
},
{
Value: 0x06,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '6',
},
{
Value: 0x07,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '7',
},
{
Value: 0x08,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '8',
},
{
Value: 0x09,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '9',
},
{
Value: 0x0A,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'a',
},
{
Value: 0x0B,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'b',
},
{
Value: 0x0C,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'c',
},
{
Value: 0x0D,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'd',
},
{
Value: 0x0E,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'e',
},
{
Value: 0x0F,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'f',
},
{
Value: 0x10,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '0',
},
{
Value: 0x11,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '1',
},
{
Value: 0x12,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '2',
},
{
Value: 0x13,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '3',
},
{
Value: 0x14,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '4',
},
{
Value: 0x15,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '5',
},
{
Value: 0x16,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '6',
},
{
Value: 0x17,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '7',
},
{
Value: 0x18,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '8',
},
{
Value: 0x19,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '9',
},
{
Value: 0x1A,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'a',
},
{
Value: 0x1B,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'b',
},
{
Value: 0x1C,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'c',
},
{
Value: 0x1D,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'd',
},
{
Value: 0x1E,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'e',
},
{
Value: 0x1F,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'f',
},
{
Value: 0x47,
ExpectedMostSignificant: '4',
ExpectedLeastSignificant: '7',
},
{
Value: 0x5C,
ExpectedMostSignificant: '5',
ExpectedLeastSignificant: 'c',
},
{
Value: 0xD0,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: '0',
},
{
Value: 0xD1,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: '1',
},
{
Value: 0xD2,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: '2',
},
{
Value: 0xD3,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: '3',
},
{
Value: 0xD4,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: '4',
},
{
Value: 0xD5,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: '5',
},
{
Value: 0xD6,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: '6',
},
{
Value: 0xD7,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: '7',
},
{
Value: 0xD8,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: '8',
},
{
Value: 0xD9,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: '9',
},
{
Value: 0xDA,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: 'a',
},
{
Value: 0xDB,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: 'b',
},
{
Value: 0xDC,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: 'c',
},
{
Value: 0xDD,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: 'd',
},
{
Value: 0xDE,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: 'e',
},
{
Value: 0xDF,
ExpectedMostSignificant: 'd',
ExpectedLeastSignificant: 'f',
},
{
Value: 0xF9,
ExpectedMostSignificant: 'f',
ExpectedLeastSignificant: '9',
},
{
Value: 0xFA,
ExpectedMostSignificant: 'f',
ExpectedLeastSignificant: 'a',
},
{
Value: 0xFB,
ExpectedMostSignificant: 'f',
ExpectedLeastSignificant: 'b',
},
{
Value: 0xFC,
ExpectedMostSignificant: 'f',
ExpectedLeastSignificant: 'c',
},
{
Value: 0xFD,
ExpectedMostSignificant: 'f',
ExpectedLeastSignificant: 'd',
},
{
Value: 0xFE,
ExpectedMostSignificant: 'f',
ExpectedLeastSignificant: 'e',
},
{
Value: 0xFF,
ExpectedMostSignificant: 'f',
ExpectedLeastSignificant: 'f',
},
}
for testNumber, test := range tests {
actualMostSignificant, actualLeastSignificant := hexadecabytes.EncodeByteUsingLowerCaseSymbols(test.Value)
{
actual := actualMostSignificant
expected := test.ExpectedMostSignificant
if expected != actual {
t.Errorf("For test #%d, the actual value for the most-significant symbol is not what was expected.", testNumber)
t.Logf("EXPECTED: %q", expected)
t.Logf("ACTUAL: %q", actual)
t.Logf("VALUE: %X (%d)", test.Value, test.Value)
continue
}
}
{
actual := actualLeastSignificant
expected := test.ExpectedLeastSignificant
if expected != actual {
t.Errorf("For test #%d, the actual value for the least-significant symbol is not what was expected.", testNumber)
t.Logf("EXPECTED: %q", expected)
t.Logf("ACTUAL: %q", actual)
t.Logf("VALUE: %X (%d)", test.Value, test.Value)
continue
}
}
}
}
func TestEncodeByteUsingUpperCaseSymbols(t *testing.T) {
tests := []struct{
Value byte
ExpectedMostSignificant byte
ExpectedLeastSignificant byte
}{
{
Value: 0x00,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '0',
},
{
Value: 0x01,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '1',
},
{
Value: 0x02,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '2',
},
{
Value: 0x03,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '3',
},
{
Value: 0x04,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '4',
},
{
Value: 0x05,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '5',
},
{
Value: 0x06,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '6',
},
{
Value: 0x07,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '7',
},
{
Value: 0x08,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '8',
},
{
Value: 0x09,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: '9',
},
{
Value: 0x0A,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'A',
},
{
Value: 0x0B,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'B',
},
{
Value: 0x0C,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'C',
},
{
Value: 0x0D,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'D',
},
{
Value: 0x0E,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'E',
},
{
Value: 0x0F,
ExpectedMostSignificant: '0',
ExpectedLeastSignificant: 'F',
},
{
Value: 0x10,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '0',
},
{
Value: 0x11,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '1',
},
{
Value: 0x12,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '2',
},
{
Value: 0x13,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '3',
},
{
Value: 0x14,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '4',
},
{
Value: 0x15,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '5',
},
{
Value: 0x16,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '6',
},
{
Value: 0x17,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '7',
},
{
Value: 0x18,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '8',
},
{
Value: 0x19,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: '9',
},
{
Value: 0x1A,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'A',
},
{
Value: 0x1B,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'B',
},
{
Value: 0x1C,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'C',
},
{
Value: 0x1D,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'D',
},
{
Value: 0x1E,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'E',
},
{
Value: 0x1F,
ExpectedMostSignificant: '1',
ExpectedLeastSignificant: 'F',
},
{
Value: 0x47,
ExpectedMostSignificant: '4',
ExpectedLeastSignificant: '7',
},
{
Value: 0x5C,
ExpectedMostSignificant: '5',
ExpectedLeastSignificant: 'C',
},
{
Value: 0xD0,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: '0',
},
{
Value: 0xD1,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: '1',
},
{
Value: 0xD2,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: '2',
},
{
Value: 0xD3,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: '3',
},
{
Value: 0xD4,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: '4',
},
{
Value: 0xD5,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: '5',
},
{
Value: 0xD6,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: '6',
},
{
Value: 0xD7,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: '7',
},
{
Value: 0xD8,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: '8',
},
{
Value: 0xD9,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: '9',
},
{
Value: 0xDA,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: 'A',
},
{
Value: 0xDB,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: 'B',
},
{
Value: 0xDC,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: 'C',
},
{
Value: 0xDD,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: 'D',
},
{
Value: 0xDE,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: 'E',
},
{
Value: 0xDF,
ExpectedMostSignificant: 'D',
ExpectedLeastSignificant: 'F',
},
{
Value: 0xF9,
ExpectedMostSignificant: 'F',
ExpectedLeastSignificant: '9',
},
{
Value: 0xFA,
ExpectedMostSignificant: 'F',
ExpectedLeastSignificant: 'A',
},
{
Value: 0xFB,
ExpectedMostSignificant: 'F',
ExpectedLeastSignificant: 'B',
},
{
Value: 0xFC,
ExpectedMostSignificant: 'F',
ExpectedLeastSignificant: 'C',
},
{
Value: 0xFD,
ExpectedMostSignificant: 'F',
ExpectedLeastSignificant: 'D',
},
{
Value: 0xFE,
ExpectedMostSignificant: 'F',
ExpectedLeastSignificant: 'E',
},
{
Value: 0xFF,
ExpectedMostSignificant: 'F',
ExpectedLeastSignificant: 'F',
},
}
for testNumber, test := range tests {
actualMostSignificant, actualLeastSignificant := hexadecabytes.EncodeByteUsingUpperCaseSymbols(test.Value)
{
actual := actualMostSignificant
expected := test.ExpectedMostSignificant
if expected != actual {
t.Errorf("For test #%d, the actual value for the most-significant symbol is not what was expected.", testNumber)
t.Logf("EXPECTED: %q", expected)
t.Logf("ACTUAL: %q", actual)
t.Logf("VALUE: %X (%d)", test.Value, test.Value)
continue
}
}
{
actual := actualLeastSignificant
expected := test.ExpectedLeastSignificant
if expected != actual {
t.Errorf("For test #%d, the actual value for the least-significant symbol is not what was expected.", testNumber)
t.Logf("EXPECTED: %q", expected)
t.Logf("ACTUAL: %q", actual)
t.Logf("VALUE: %X (%d)", test.Value, test.Value)
continue
}
}
}
}