func testLexer(input string, t *testing.T) {
l := new(json.Lexer)
l.Init(input, PanicOnError)
spacesRE := regexp.MustCompile(`^\s+$`)
next := l.Next()
offset := 0
for next != json.EOI {
s, e := l.Pos()
if s > offset && !spacesRE.MatchString(input[offset:s]) {
t.Errorf("Spaces expected: %s", input[offset:s])
}
offset = e
token := string(input[s:e])
switch next {
case json.LBRACE, json.RBRACE, json.LBRACK, json.RBRACK,
json.COLON, json.COMMA, json.NULL, json.TRUE, json.FALSE:
if token != next.String() {
t.Errorf("Bad token %v: %s", next, token)
}
case json.JSONSTRING:
if !strings.HasPrefix(token, `"`) || !strings.HasSuffix(token, `"`) {
t.Errorf("Bad string literal: %s", token)
}
}
next = l.Next()
}
}
func BenchmarkLexer(b *testing.B) {
l := new(json.Lexer)
for i := 0; i < b.N; i++ {
l.Init(jsonExample, PanicOnError)
next := l.Next()
for next != json.EOI {
next = l.Next()
}
}
b.SetBytes(int64(len(jsonExample)))
}