1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
// SPDX-License-Identifier: GPL-3.0-or-later
package sexp
import (
"testing"
"unicode/utf8"
)
// FuzzParse checks that Parse never panics and that every node it returns
// spans valid bytes, with lists pointing at their own parentheses.
func FuzzParse(f *testing.F) {
for _, s := range []string{`(a "b" (c))`, `"\"`, `(((`, `)`, "; x\n(y)", `("ł" x)`, "\xff", `"\\"`} {
f.Add([]byte(s))
}
f.Fuzz(func(t *testing.T, src []byte) {
nodes, err := Parse("f", src)
if err != nil {
return
}
walk(nodes, func(n *Node) {
if n.Pos.Offset < 0 || n.End.Offset > len(src) || n.Pos.Offset >= n.End.Offset {
t.Fatalf("bad span %d..%d in %q", n.Pos.Offset, n.End.Offset, src)
}
if n.Kind == List && (src[n.Pos.Offset] != '(' || src[n.End.Offset-1] != ')') {
t.Fatalf("list %d..%d does not span its parens in %q", n.Pos.Offset, n.End.Offset, src)
}
})
})
}
// FuzzQuoteRoundTrip: Quote gives one string atom that parses back to
// exactly the text quoted, for any valid UTF-8 - quotes, backslashes and
// newlines included. krino new writes a directory's path into its config
// with Quote; config files are UTF-8 text, so krino new refuses a path that
// is not, and invalid UTF-8 is out of this property's scope.
func FuzzQuoteRoundTrip(f *testing.F) {
for _, s := range []string{"plain", `with "quotes"`, `back\slash`, "new\nline", "zażółć", "", "\xff", `\bacme\b`} {
f.Add(s)
}
f.Fuzz(func(t *testing.T, s string) {
if !utf8.ValidString(s) {
return
}
nodes, err := Parse("f", []byte(Quote(s)))
if err != nil {
t.Fatalf("Quote(%q) = %s does not parse: %v", s, Quote(s), err)
}
if len(nodes) != 1 || nodes[0].Kind != String || nodes[0].Text != s {
t.Fatalf("Quote(%q) = %s reads back as %+v", s, Quote(s), nodes)
}
})
}
|
