initial commits
parent
e03a99a974
commit
b379ea9fdb
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@ -0,0 +1,36 @@
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package eol
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import (
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"io"
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"sourcecode.social/reiver/go-opt"
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)
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func ReadCRLF(runescanner io.RuneScanner) (size int, err error) {
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var size0 int
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{
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var err error
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const characterNumber uint64 = 1
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var circumstance internalCircumstance = specifyCircumstance(opt.Something(CRLF), characterNumber)
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size0, err = readthisrune(circumstance, runescanner, cr)
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if nil != err {
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return size0, err
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}
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}
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var size1 int
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{
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var err error
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const characterNumber uint64 = 2
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var circumstance internalCircumstance = specifyCircumstance(opt.Something(CRLF), characterNumber)
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size1, err = readthisrune(circumstance, runescanner, lf)
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if nil != err {
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return size1+size0, err
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}
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}
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return size1+size0, nil
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}
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@ -0,0 +1,215 @@
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package eol_test
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import (
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"testing"
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"io"
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"strings"
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"sourcecode.social/reiver/go-utf8"
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"sourcecode.social/reiver/go-eol"
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)
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func TestReadCRLF(t *testing.T) {
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tests := []struct{
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Value string
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ExpectedSize int
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}{
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{
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Value: "\r\n",
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ExpectedSize: 2,
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},
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{
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Value: "\r\napple banana cherry",
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ExpectedSize: 2,
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},
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}
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for testNumber, test := range tests {
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var reader io.Reader = strings.NewReader(test.Value)
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var runescanner io.RuneScanner = utf8.NewRuneScanner(reader)
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actualSize, err := eol.ReadCRLF(runescanner)
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if nil != err {
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t.Errorf("For test #%d, did not expect an error but actually got one.", testNumber)
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t.Logf("ERROR: (%T) %s", err, err)
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t.Logf("VALUE: %q", test.Value)
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continue
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}
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{
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expected := test.ExpectedSize
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actual := actualSize
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if expected != actual {
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t.Errorf("For test #%d, the actual size is not what was expected.", testNumber)
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t.Logf("EXPECTED: %d", expected)
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t.Logf("ACTUAL: %d", actual)
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t.Logf("VALUE: %q", test.Value)
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continue
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}
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}
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}
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}
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func TestReadCRLF_fail(t *testing.T) {
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tests := []struct{
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Value string
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ExpectedError string
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ExpectedSize int
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}{
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{
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Value: "",
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ExpectedError: `eol: problem reading character №1 of end-of-line sequence "\r\n": EOF`,
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},
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{
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Value: "\n",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '\n' (U+000A)`,
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},
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{
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Value: "\r",
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ExpectedError: `eol: problem reading character №2 of end-of-line sequence "\r\n": EOF`,
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ExpectedSize: 1,
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},
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{
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Value: "\u0085",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '\u0085' (U+0085)`,
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},
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{
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Value: "\u2028",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '\u2028' (U+2028)`,
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},
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{
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Value: "😈",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '😈' (U+1F608)`,
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},
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{
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Value: "\napple banana cherry",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '\n' (U+000A)`,
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},
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{
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Value: "\u0085apple banana cherry",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '\u0085' (U+0085)`,
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},
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{
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Value: "\u2028apple banana cherry",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '\u2028' (U+2028)`,
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},
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{
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Value: "😈apple banana cherry",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '😈' (U+1F608)`,
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},
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{
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Value: " \n",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found ' ' (U+0020)`,
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},
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{
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Value: " \r",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found ' ' (U+0020)`,
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},
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{
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Value: " \u0085",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found ' ' (U+0020)`,
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},
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{
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Value: " \u2028",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found ' ' (U+0020)`,
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},
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{
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Value: " 😈",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found ' ' (U+0020)`,
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},
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{
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Value: ".\n",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '.' (U+002E)`,
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},
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{
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Value: ".\r",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '.' (U+002E)`,
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},
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{
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Value: ".\u0085",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '.' (U+002E)`,
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},
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{
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Value: ".\u2028",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '.' (U+002E)`,
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},
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{
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Value: ".😈",
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ExpectedError: `eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence "\r\n" character №1 — instead found '.' (U+002E)`,
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},
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}
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for testNumber, test := range tests {
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var reader io.Reader = strings.NewReader(test.Value)
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var runescanner io.RuneScanner = utf8.NewRuneScanner(reader)
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actualSize, err := eol.ReadCRLF(runescanner)
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if nil == err {
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t.Errorf("For test #%d, expected an error but did not actually get one.", testNumber)
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t.Logf("EXPECTED-ERROR: %q", test.ExpectedError)
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t.Logf("VALUE: %q", test.Value)
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continue
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}
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{
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expected := test.ExpectedError
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actual := err.Error()
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if expected != actual {
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t.Errorf("For test #%d, the actual error is not what was expected.", testNumber)
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t.Logf("EXPECTED: %q", expected)
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t.Logf("ACTUAL: %q", actual)
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t.Logf("VALUE: %q", test.Value)
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continue
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}
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}
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{
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expected := test.ExpectedSize
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actual := actualSize
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if expected != actual {
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t.Errorf("For test #%d, the actual size is not what was expected.", testNumber)
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t.Logf("EXPECTED: %d", expected)
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t.Logf("ACTUAL: %d", actual)
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t.Logf("VALUE: %q", test.Value)
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continue
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}
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}
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}
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}
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