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value_test.go
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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package jsontext
import (
"io"
"strings"
"testing"
"github.com/go-json-experiment/json/internal/jsontest"
"github.com/go-json-experiment/json/internal/jsonwire"
)
type valueTestdataEntry struct {
name jsontest.CaseName
in string
wantValid bool
wantCompacted string
wantCompactErr error // implies wantCompacted is in
wantIndented string // wantCompacted if empty; uses "\t" for indent prefix and " " for indent
wantIndentErr error // implies wantCompacted is in
wantCanonicalized string // wantCompacted if empty
wantCanonicalizeErr error // implies wantCompacted is in
}
var valueTestdata = append(func() (out []valueTestdataEntry) {
// Initialize valueTestdata from coderTestdata.
for _, td := range coderTestdata {
// NOTE: The Compact method preserves the raw formatting of strings,
// while the Encoder (by default) does not.
if td.name.Name == "ComplicatedString" {
td.outCompacted = strings.TrimSpace(td.in)
}
out = append(out, valueTestdataEntry{
name: td.name,
in: td.in,
wantValid: true,
wantCompacted: td.outCompacted,
wantIndented: td.outIndented,
wantCanonicalized: td.outCanonicalized,
})
}
return out
}(), []valueTestdataEntry{{
name: jsontest.Name("RFC8785/Primitives"),
in: `{
"numbers": [333333333.33333329, 1E30, 4.50,
2e-3, 0.000000000000000000000000001, -0],
"string": "\u20ac$\u000F\u000aA'\u0042\u0022\u005c\\\"\/",
"literals": [null, true, false]
}`,
wantValid: true,
wantCompacted: `{"numbers":[333333333.33333329,1E30,4.50,2e-3,0.000000000000000000000000001,-0],"string":"\u20ac$\u000F\u000aA'\u0042\u0022\u005c\\\"\/","literals":[null,true,false]}`,
wantIndented: `{
"numbers": [
333333333.33333329,
1E30,
4.50,
2e-3,
0.000000000000000000000000001,
-0
],
"string": "\u20ac$\u000F\u000aA'\u0042\u0022\u005c\\\"\/",
"literals": [
null,
true,
false
]
}`,
wantCanonicalized: `{"literals":[null,true,false],"numbers":[333333333.3333333,1e+30,4.5,0.002,1e-27,0],"string":"€$\u000f\nA'B\"\\\\\"/"}`,
}, {
name: jsontest.Name("RFC8785/ObjectOrdering"),
in: `{
"\u20ac": "Euro Sign",
"\r": "Carriage Return",
"\ufb33": "Hebrew Letter Dalet With Dagesh",
"1": "One",
"\ud83d\ude00": "Emoji: Grinning Face",
"\u0080": "Control",
"\u00f6": "Latin Small Letter O With Diaeresis"
}`,
wantValid: true,
wantCompacted: `{"\u20ac":"Euro Sign","\r":"Carriage Return","\ufb33":"Hebrew Letter Dalet With Dagesh","1":"One","\ud83d\ude00":"Emoji: Grinning Face","\u0080":"Control","\u00f6":"Latin Small Letter O With Diaeresis"}`,
wantIndented: `{
"\u20ac": "Euro Sign",
"\r": "Carriage Return",
"\ufb33": "Hebrew Letter Dalet With Dagesh",
"1": "One",
"\ud83d\ude00": "Emoji: Grinning Face",
"\u0080": "Control",
"\u00f6": "Latin Small Letter O With Diaeresis"
}`,
wantCanonicalized: `{"\r":"Carriage Return","1":"One","":"Control","ö":"Latin Small Letter O With Diaeresis","€":"Euro Sign","😀":"Emoji: Grinning Face","דּ":"Hebrew Letter Dalet With Dagesh"}`,
}, {
name: jsontest.Name("LargeIntegers"),
in: ` [ -9223372036854775808 , 9223372036854775807 ] `,
wantValid: true,
wantCompacted: `[-9223372036854775808,9223372036854775807]`,
wantIndented: `[
-9223372036854775808,
9223372036854775807
]`,
wantCanonicalized: `[-9223372036854776000,9223372036854776000]`, // NOTE: Loss of precision due to numbers being treated as floats.
}, {
name: jsontest.Name("InvalidUTF8"),
in: ` "living` + "\xde\xad\xbe\xef" + `\ufffd�" `,
wantValid: false, // uses RFC 7493 as the definition; which validates UTF-8
wantCompacted: `"living` + "\xde\xad\xbe\xef" + `\ufffd�"`,
wantCanonicalizeErr: E(jsonwire.ErrInvalidUTF8).withPos(` "living`+"\xde\xad", ""),
}, {
name: jsontest.Name("InvalidUTF8/SurrogateHalf"),
in: `"\ud800"`,
wantValid: false, // uses RFC 7493 as the definition; which validates UTF-8
wantCompacted: `"\ud800"`,
wantCanonicalizeErr: newInvalidEscapeSequenceError(`\ud800"`).withPos(`"`, ""),
}, {
name: jsontest.Name("UppercaseEscaped"),
in: `"\u000B"`,
wantValid: true,
wantCompacted: `"\u000B"`,
wantCanonicalized: `"\u000b"`,
}, {
name: jsontest.Name("DuplicateNames"),
in: ` { "0" : 0 , "1" : 1 , "0" : 0 }`,
wantValid: false, // uses RFC 7493 as the definition; which does check for object uniqueness
wantCompacted: `{"0":0,"1":1,"0":0}`,
wantIndented: `{
"0": 0,
"1": 1,
"0": 0
}`,
wantCanonicalizeErr: E(ErrDuplicateName).withPos(` { "0" : 0 , "1" : 1 , `, "/0"),
}, {
name: jsontest.Name("Whitespace"),
in: " \n\r\t",
wantValid: false,
wantCompacted: " \n\r\t",
wantCompactErr: E(io.ErrUnexpectedEOF).withPos(" \n\r\t", ""),
wantIndentErr: E(io.ErrUnexpectedEOF).withPos(" \n\r\t", ""),
wantCanonicalizeErr: E(io.ErrUnexpectedEOF).withPos(" \n\r\t", ""),
}}...)
func TestValueMethods(t *testing.T) {
for _, td := range valueTestdata {
t.Run(td.name.Name, func(t *testing.T) {
if td.wantIndented == "" {
td.wantIndented = td.wantCompacted
}
if td.wantCanonicalized == "" {
td.wantCanonicalized = td.wantCompacted
}
if td.wantCompactErr != nil {
td.wantCompacted = td.in
}
if td.wantIndentErr != nil {
td.wantIndented = td.in
}
if td.wantCanonicalizeErr != nil {
td.wantCanonicalized = td.in
}
v := Value(td.in)
gotValid := v.IsValid()
if gotValid != td.wantValid {
t.Errorf("%s: Value.IsValid = %v, want %v", td.name.Where, gotValid, td.wantValid)
}
gotCompacted := Value(td.in)
gotCompactErr := gotCompacted.Compact()
if string(gotCompacted) != td.wantCompacted {
t.Errorf("%s: Value.Compact = %s, want %s", td.name.Where, gotCompacted, td.wantCompacted)
}
if !equalError(gotCompactErr, td.wantCompactErr) {
t.Errorf("%s: Value.Compact error mismatch:\ngot %v\nwant %v", td.name.Where, gotCompactErr, td.wantCompactErr)
}
gotIndented := Value(td.in)
gotIndentErr := gotIndented.Indent(WithIndentPrefix("\t"), WithIndent(" "))
if string(gotIndented) != td.wantIndented {
t.Errorf("%s: Value.Indent = %s, want %s", td.name.Where, gotIndented, td.wantIndented)
}
if !equalError(gotIndentErr, td.wantIndentErr) {
t.Errorf("%s: Value.Indent error mismatch:\ngot %v\nwant %v", td.name.Where, gotIndentErr, td.wantIndentErr)
}
gotCanonicalized := Value(td.in)
gotCanonicalizeErr := gotCanonicalized.Canonicalize()
if string(gotCanonicalized) != td.wantCanonicalized {
t.Errorf("%s: Value.Canonicalize = %s, want %s", td.name.Where, gotCanonicalized, td.wantCanonicalized)
}
if !equalError(gotCanonicalizeErr, td.wantCanonicalizeErr) {
t.Errorf("%s: Value.Canonicalize error mismatch:\ngot %v\nwant %v", td.name.Where, gotCanonicalizeErr, td.wantCanonicalizeErr)
}
})
}
}