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go-rfc2396
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master
Charles Iliya Krempeaux 2023-12-08 03:29:33 -08:00
parent cd51334d8b
commit 6a9cceffef
2 changed files with 463 additions and 0 deletions
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41
decnum/bytes.go 100644
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package decnum
import (
"sourcecode.social/reiver/go-rfc2396/digit"
)
// Bytes return a 'decnum'.
//
// decnum = 1*digit
//
// 'decnum' doesn't appear in IETF RFC-2396 by name. But instead is part of `IPv4address`.
//
// IPv4address = 1*digit "." 1*digit "." 1*digit "." 1*digit
//
// I called this a 'decnum' (i.e., "decimal number").
func Bytes(p []byte) (result []byte, rest []byte, ok bool) {
length := len(p)
if length <= 0 {
return nil, nil, false
}
{
p0 := p[0]
if !digit.ByteIs(p0) {
return nil, p, false
}
}
{
for i,b := range p {
if !digit.ByteIs(b) {
return p[:i], p[i:], true
}
}
return p, nil, true
}
}

422
decnum/bytes_test.go 100644
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package decnum_test
import (
"testing"
"bytes"
"sourcecode.social/reiver/go-rfc2396/decnum"
)
func TestBytes(t *testing.T) {
tests := []struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
{
Value: nil,
ExpectedResult: nil,
ExpectedRest: nil,
ExpectedOK: false,
},
{
Value: []byte(nil),
ExpectedResult: nil,
ExpectedRest: nil,
ExpectedOK: false,
},
{
Value: []byte{},
ExpectedResult: nil,
ExpectedRest: nil,
ExpectedOK: false,
},
{
Value: []byte(""),
ExpectedResult: nil,
ExpectedRest: nil,
ExpectedOK: false,
},
{
Value: []byte{'%','f','0', '%','9','f', '%','9','9', '%','8','b'}, // == "🙂"
ExpectedResult: nil,
ExpectedRest: []byte{'%','f','0', '%','9','f', '%','9','9', '%','8','b'},
ExpectedOK: false,
},
{
Value: []byte{'$',',',';',':','@','&','=','+', '-','_','.','!','~','*','\'','(',')', '0','1','2','3','4','5','6','7','8','9', 'A','B','C','D','E','F', 'a','b','c','d','e','f', ' '},
ExpectedResult: nil,
ExpectedRest: []byte{'$',',',';',':','@','&','=','+', '-','_','.','!','~','*','\'','(',')', '0','1','2','3','4','5','6','7','8','9', 'A','B','C','D','E','F', 'a','b','c','d','e','f', ' '},
ExpectedOK: false,
},
{
Value: []byte("0"),
ExpectedResult: []byte("0"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("1"),
ExpectedResult: []byte("1"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("2"),
ExpectedResult: []byte("2"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("3"),
ExpectedResult: []byte("3"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("4"),
ExpectedResult: []byte("4"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("5"),
ExpectedResult: []byte("5"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("6"),
ExpectedResult: []byte("6"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("7"),
ExpectedResult: []byte("7"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("8"),
ExpectedResult: []byte("8"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("9"),
ExpectedResult: []byte("9"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("8080"),
ExpectedResult: []byte("8080"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("8080 "),
ExpectedResult: []byte("8080"),
ExpectedRest: []byte(" "),
ExpectedOK: true,
},
{
Value: []byte("8080/"),
ExpectedResult: []byte("8080"),
ExpectedRest: []byte("/"),
ExpectedOK: true,
},
{
Value: []byte("8080\n"),
ExpectedResult: []byte("8080"),
ExpectedRest: []byte("\n"),
ExpectedOK: true,
},
{
Value: []byte("8080."),
ExpectedResult: []byte("8080"),
ExpectedRest: []byte("."),
ExpectedOK: true,
},
{
Value: []byte("10203040506070809"),
ExpectedResult: []byte("10203040506070809"),
ExpectedRest: nil,
ExpectedOK: true,
},
{
Value: []byte("10203040506070809 "),
ExpectedResult: []byte("10203040506070809"),
ExpectedRest: []byte(" "),
ExpectedOK: true,
},
{
Value: []byte("10203040506070809/"),
ExpectedResult: []byte("10203040506070809"),
ExpectedRest: []byte("/"),
ExpectedOK: true,
},
{
Value: []byte("10203040506070809\n"),
ExpectedResult: []byte("10203040506070809"),
ExpectedRest: []byte("\n"),
ExpectedOK: true,
},
{
Value: []byte("10203040506070809."),
ExpectedResult: []byte("10203040506070809"),
ExpectedRest: []byte("."),
ExpectedOK: true,
},
{
Value: []byte("192.168.0.1"),
ExpectedResult: []byte("192"),
ExpectedRest: []byte(".168.0.1"),
ExpectedOK: true,
},
}
for _, b1 := range []byte{'0','1','2','3','4','5','6','7','8','9'} {
for _, b2 := range []byte{'0','1','2','3','4','5','6','7','8','9'} {
{
test := struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
Value: []byte{b1, b2},
ExpectedResult: []byte{b1, b2},
ExpectedRest: nil,
ExpectedOK: true,
}
tests = append(tests, test)
}
{
test := struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
Value: []byte{b1, b2, ' '},
ExpectedResult: []byte{b1, b2},
ExpectedRest: []byte{' '},
ExpectedOK: true,
}
tests = append(tests, test)
}
{
test := struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
Value: []byte{b1, b2, '/'},
ExpectedResult: []byte{b1, b2},
ExpectedRest: []byte{'/'},
ExpectedOK: true,
}
tests = append(tests, test)
}
{
test := struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
Value: []byte{b1, b2, '\n'},
ExpectedResult: []byte{b1, b2},
ExpectedRest: []byte{'\n'},
ExpectedOK: true,
}
tests = append(tests, test)
}
{
test := struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
Value: []byte{b1, b2, 'A'},
ExpectedResult: []byte{b1, b2},
ExpectedRest: []byte{'A'},
ExpectedOK: true,
}
tests = append(tests, test)
}
}
}
for _, b1 := range []byte{'0','1','2','3','4','5','6','7','8','9'} {
for _, b2 := range []byte{'0','1','2','3','4','5','6','7','8','9'} {
for _, b3 := range []byte{'0','1','2','3','4','5','6','7','8','9'} {
{
test := struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
Value: []byte{b1, b2, b3},
ExpectedResult: []byte{b1, b2, b3},
ExpectedRest: nil,
ExpectedOK: true,
}
tests = append(tests, test)
}
{
test := struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
Value: []byte{b1, b2, b3, ' '},
ExpectedResult: []byte{b1, b2, b3},
ExpectedRest: []byte{' '},
ExpectedOK: true,
}
tests = append(tests, test)
}
{
test := struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
Value: []byte{b1, b2, b3, '/'},
ExpectedResult: []byte{b1, b2, b3},
ExpectedRest: []byte{'/'},
ExpectedOK: true,
}
tests = append(tests, test)
}
{
test := struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
Value: []byte{b1, b2, b3, '\n'},
ExpectedResult: []byte{b1, b2, b3},
ExpectedRest: []byte{'\n'},
ExpectedOK: true,
}
tests = append(tests, test)
}
{
test := struct{
Value []byte
ExpectedResult []byte
ExpectedRest []byte
ExpectedOK bool
}{
Value: []byte{b1, b2, b3, 'A'},
ExpectedResult: []byte{b1, b2, b3},
ExpectedRest: []byte{'A'},
ExpectedOK: true,
}
tests = append(tests, test)
}
}
}
}
for testNumber, test := range tests {
actualResult, actualRest, actualOK := decnum.Bytes(test.Value)
{
expected := test.ExpectedOK
actual := actualOK
if expected != actual {
t.Errorf("For test #%d, the actual ok-result is not what was expected.", testNumber)
t.Logf("EXPECTED: %t", expected)
t.Logf("ACTUAL: %t", actual)
t.Logf("VALUE: %q (%#v)", test.Value, test.Value)
continue
}
}
{
expected := test.ExpectedResult
actual := actualResult
if !bytes.Equal(expected,actual) {
t.Errorf("For test #%d, the actual result is not what was expected.", testNumber)
t.Logf("EXPECTED: %q (%#v)", expected, expected)
t.Logf("ACTUAL: %q (%#v)", actual, actual)
t.Logf("VALUE: %q (%#v)", test.Value, test.Value)
t.Logf("ACTUAL-REST: %q (%#v)", actualRest, actualRest)
continue
}
}
{
expected := test.ExpectedRest
actual := actualRest
if !bytes.Equal(expected,actual) {
t.Errorf("For test #%d, the actual rest-result is not what was expected.", testNumber)
t.Logf("EXPECTED: %q (%#v)", expected, expected)
t.Logf("ACTUAL: %q (%#v)", actual, actual)
t.Logf("VALUE: %q (%#v)", test.Value, test.Value)
continue
}
}
}
}