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go-rfc8259
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master
Charles Iliya Krempeaux 2023-11-03 14:00:32 -07:00
parent 5cee07a260
commit b8b35efdf4
4 changed files with 717 additions and 0 deletions
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121
parsefalse.go 100644
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@ -0,0 +1,121 @@
package rfc8259
import (
"io"
"sourcecode.social/reiver/go-erorr"
)
func errProblemParsingBooleanFalse(expected rune, actual rune) error {
return erorr.Errorf("rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a %q (%U) but actually got a %q (%U)", expected, expected, actual, actual)
}
// ParseFalse tries to parse the JSON boolean literal 'false'.
// If it succeeds, then it return nil.
// If it failed, it returns an error.
//
// Example usage:
//
// var rr io.RuneReader
//
// // ...
//
// err := rfc8259.ParseFalse(rr)
//
// if nil != err {
// fmt.Printf("We did NOT have a 'false', but instead got the error: %s\n", err)
// } else {
// fmt.Print("We had a 'false'\n")
// }
func ParseFalse(rr io.RuneReader) error {
if nil == rr {
return errNilRuneReader
}
{
const expected rune = 'f'
r, _, err := rr.ReadRune()
if nil != err {
if io.EOF == err {
return errUnexpectedEndOfFile
}
return errProblemReadingRune(err)
}
if expected != r {
return errProblemParsingBooleanFalse(expected, r)
}
}
{
const expected rune = 'a'
r, _, err := rr.ReadRune()
if nil != err {
if io.EOF == err {
return errUnexpectedEndOfFile
}
return errProblemReadingRune(err)
}
if expected != r {
return errProblemParsingBooleanFalse(expected, r)
}
}
{
const expected rune = 'l'
r, _, err := rr.ReadRune()
if nil != err {
if io.EOF == err {
return errUnexpectedEndOfFile
}
return errProblemReadingRune(err)
}
if expected != r {
return errProblemParsingBooleanFalse(expected, r)
}
}
{
const expected rune = 's'
r, _, err := rr.ReadRune()
if nil != err {
if io.EOF == err {
return errUnexpectedEndOfFile
}
return errProblemReadingRune(err)
}
if expected != r {
return errProblemParsingBooleanFalse(expected, r)
}
}
{
const expected rune = 'e'
r, _, err := rr.ReadRune()
if nil != err {
if io.EOF == err {
return errUnexpectedEndOfFile
}
return errProblemReadingRune(err)
}
if expected != r {
return errProblemParsingBooleanFalse(expected, r)
}
}
return nil
}

250
parsefalse_test.go 100644
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@ -0,0 +1,250 @@
package rfc8259_test
import (
"testing"
"bytes"
"io"
"sourcecode.social/reiver/go-utf8"
"sourcecode.social/reiver/go-rfc8259"
)
func TestParseFalse_success(t *testing.T) {
var p []byte = []byte("false")
var reader io.Reader = bytes.NewReader(p)
var runereader io.RuneReader = utf8.NewRuneReader(reader)
err := rfc8259.ParseFalse(runereader)
if nil != err {
t.Errorf("Did not expect an error but actually got one.")
t.Logf("ERROR: (%T) %s", err, err)
return
}
}
func TestParseFalse_failure(t *testing.T) {
tests := []struct{
Value []byte
Expected string
}{
{
Value: []byte(nil),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte(""),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte("f"),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte("fa"),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte("fal"),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte("fals"),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte("\t"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '\\t' (U+0009)",
},
{
Value: []byte("\n"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '\\n' (U+000A)",
},
{
Value: []byte("\r"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '\\r' (U+000D)",
},
{
Value: []byte(" "),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a ' ' (U+0020)",
},
{
Value: []byte("\""),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '\"' (U+0022)",
},
{
Value: []byte("-"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '-' (U+002D)",
},
{
Value: []byte("0"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '0' (U+0030)",
},
{
Value: []byte("1"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '1' (U+0031)",
},
{
Value: []byte("2"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '2' (U+0032)",
},
{
Value: []byte("3"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '3' (U+0033)",
},
{
Value: []byte("4"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '4' (U+0034)",
},
{
Value: []byte("5"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '5' (U+0035)",
},
{
Value: []byte("6"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '6' (U+0036)",
},
{
Value: []byte("7"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '7' (U+0037)",
},
{
Value: []byte("8"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '8' (U+0038)",
},
{
Value: []byte("9"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '9' (U+0039)",
},
{
Value: []byte("n"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a 'n' (U+006E)",
},
{
Value: []byte("t"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a 't' (U+0074)",
},
{
Value: []byte("\"name\""),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '\"' (U+0022)",
},
{
Value: []byte("-34"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '-' (U+002D)",
},
{
Value: []byte("0.123"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '0' (U+0030)",
},
{
Value: []byte("123"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '1' (U+0031)",
},
{
Value: []byte("22.22"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '2' (U+0032)",
},
{
Value: []byte("3.141592653589793238462643383279502884"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '3' (U+0033)",
},
{
Value: []byte("4E31"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '4' (U+0034)",
},
{
Value: []byte("5e23"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '5' (U+0035)",
},
{
Value: []byte("6789"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '6' (U+0036)",
},
{
Value: []byte("7978777675"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '7' (U+0037)",
},
{
Value: []byte("812"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '8' (U+0038)",
},
{
Value: []byte("901"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a '9' (U+0039)",
},
{
Value: []byte("null"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a 'n' (U+006E)",
},
{
Value: []byte("true"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a 't' (U+0074)",
},
{
Value: []byte("F"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'f' (U+0066) but actually got a 'F' (U+0046)",
},
{
Value: []byte("fA"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'a' (U+0061) but actually got a 'A' (U+0041)",
},
{
Value: []byte("faL"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'l' (U+006C) but actually got a 'L' (U+004C)",
},
{
Value: []byte("falS"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 's' (U+0073) but actually got a 'S' (U+0053)",
},
{
Value: []byte("falsE"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'e' (U+0065) but actually got a 'E' (U+0045)",
},
{
Value: []byte("fals,"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'false' — expected a 'e' (U+0065) but actually got a ',' (U+002C)",
},
}
for testNumber, test := range tests {
var reader io.Reader = bytes.NewReader(test.Value)
var runereader io.RuneReader = utf8.NewRuneReader(reader)
err := rfc8259.ParseFalse(runereader)
if nil == err {
t.Errorf("Expected an error but did not actually get one.")
t.Logf("VALUE: %#v", test.Value)
t.Logf("VALUE: %q", test.Value)
continue
}
{
actual := err.Error()
expected := test.Expected
if expected != actual {
t.Errorf("For test #%d, the actual value for the error is not what was expected." , testNumber)
t.Logf("EXPECTED: %q", expected)
t.Logf("ACTUAL: %q", actual)
continue
}
}
}
}

104
parsetrue.go 100644
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@ -0,0 +1,104 @@
package rfc8259
import (
"io"
"sourcecode.social/reiver/go-erorr"
)
func errProblemParsingBooleanTrue(expected rune, actual rune) error {
return erorr.Errorf("rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a %q (%U) but actually got a %q (%U)", expected, expected, actual, actual)
}
// ParseTrue tries to parse the JSON boolean literal 'true'.
// If it succeeds, then it return nil.
// If it failed, it returns an error.
//
// Example usage:
//
// var rr io.RuneReader
//
// // ...
//
// err := rfc8259.ParseTrue(rr)
//
// if nil != err {
// fmt.Printf("We did NOT have a 'true', but instead got the error: %s\n", err)
// } else {
// fmt.Print("We had a 'true'\n")
// }
func ParseTrue(rr io.RuneReader) error {
if nil == rr {
return errNilRuneReader
}
{
const expected rune = 't'
r, _, err := rr.ReadRune()
if nil != err {
if io.EOF == err {
return errUnexpectedEndOfFile
}
return errProblemReadingRune(err)
}
if expected != r {
return errProblemParsingBooleanTrue(expected, r)
}
}
{
const expected rune = 'r'
r, _, err := rr.ReadRune()
if nil != err {
if io.EOF == err {
return errUnexpectedEndOfFile
}
return errProblemReadingRune(err)
}
if expected != r {
return errProblemParsingBooleanTrue(expected, r)
}
}
{
const expected rune = 'u'
r, _, err := rr.ReadRune()
if nil != err {
if io.EOF == err {
return errUnexpectedEndOfFile
}
return errProblemReadingRune(err)
}
if expected != r {
return errProblemParsingBooleanTrue(expected, r)
}
}
{
const expected rune = 'e'
r, _, err := rr.ReadRune()
if nil != err {
if io.EOF == err {
return errUnexpectedEndOfFile
}
return errProblemReadingRune(err)
}
if expected != r {
return errProblemParsingBooleanTrue(expected, r)
}
}
return nil
}

242
parsetrue_test.go 100644
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@ -0,0 +1,242 @@
package rfc8259_test
import (
"testing"
"bytes"
"io"
"sourcecode.social/reiver/go-utf8"
"sourcecode.social/reiver/go-rfc8259"
)
func TestParseTrue_success(t *testing.T) {
var p []byte = []byte("true")
var reader io.Reader = bytes.NewReader(p)
var runereader io.RuneReader = utf8.NewRuneReader(reader)
err := rfc8259.ParseTrue(runereader)
if nil != err {
t.Errorf("Did not expect an error but actually got one.")
t.Logf("ERROR: (%T) %s", err, err)
return
}
}
func TestParseTrue_failure(t *testing.T) {
tests := []struct{
Value []byte
Expected string
}{
{
Value: []byte(nil),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte(""),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte("t"),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte("tr"),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte("tru"),
Expected: "rfc8259: unexpected end-of-file",
},
{
Value: []byte("\t"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '\\t' (U+0009)",
},
{
Value: []byte("\n"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '\\n' (U+000A)",
},
{
Value: []byte("\r"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '\\r' (U+000D)",
},
{
Value: []byte(" "),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a ' ' (U+0020)",
},
{
Value: []byte("\""),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '\"' (U+0022)",
},
{
Value: []byte("-"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '-' (U+002D)",
},
{
Value: []byte("0"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '0' (U+0030)",
},
{
Value: []byte("1"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '1' (U+0031)",
},
{
Value: []byte("2"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '2' (U+0032)",
},
{
Value: []byte("3"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '3' (U+0033)",
},
{
Value: []byte("4"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '4' (U+0034)",
},
{
Value: []byte("5"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '5' (U+0035)",
},
{
Value: []byte("6"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '6' (U+0036)",
},
{
Value: []byte("7"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '7' (U+0037)",
},
{
Value: []byte("8"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '8' (U+0038)",
},
{
Value: []byte("9"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '9' (U+0039)",
},
{
Value: []byte("f"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a 'f' (U+0066)",
},
{
Value: []byte("n"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a 'n' (U+006E)",
},
{
Value: []byte("\"name\""),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '\"' (U+0022)",
},
{
Value: []byte("-34"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '-' (U+002D)",
},
{
Value: []byte("0.123"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '0' (U+0030)",
},
{
Value: []byte("123"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '1' (U+0031)",
},
{
Value: []byte("22.22"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '2' (U+0032)",
},
{
Value: []byte("3.141592653589793238462643383279502884"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '3' (U+0033)",
},
{
Value: []byte("4E31"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '4' (U+0034)",
},
{
Value: []byte("5e23"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '5' (U+0035)",
},
{
Value: []byte("6789"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '6' (U+0036)",
},
{
Value: []byte("7978777675"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '7' (U+0037)",
},
{
Value: []byte("812"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '8' (U+0038)",
},
{
Value: []byte("901"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a '9' (U+0039)",
},
{
Value: []byte("false"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a 'f' (U+0066)",
},
{
Value: []byte("null"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a 'n' (U+006E)",
},
{
Value: []byte("T"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 't' (U+0074) but actually got a 'T' (U+0054)",
},
{
Value: []byte("tR"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 'r' (U+0072) but actually got a 'R' (U+0052)",
},
{
Value: []byte("trU"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 'u' (U+0075) but actually got a 'U' (U+0055)",
},
{
Value: []byte("truE"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 'e' (U+0065) but actually got a 'E' (U+0045)",
},
{
Value: []byte("tru,"),
Expected: "rfc8259: problem when trying to parse JSON boolean literal 'true' — expected a 'e' (U+0065) but actually got a ',' (U+002C)",
},
}
for testNumber, test := range tests {
var reader io.Reader = bytes.NewReader(test.Value)
var runereader io.RuneReader = utf8.NewRuneReader(reader)
err := rfc8259.ParseTrue(runereader)
if nil == err {
t.Errorf("Expected an error but did not actually get one.")
t.Logf("VALUE: %#v", test.Value)
t.Logf("VALUE: %q", test.Value)
continue
}
{
actual := err.Error()
expected := test.Expected
if expected != actual {
t.Errorf("For test #%d, the actual value for the error is not what was expected." , testNumber)
t.Logf("EXPECTED: %q", expected)
t.Logf("ACTUAL: %q", actual)
continue
}
}
}
}