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// Copyright 2021 The age Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build go1.18
// +build go1.18
package format_test
import (
"bytes"
"io"
"os"
"path/filepath"
"testing"
"filippo.io/age/internal/format"
)
func TestStanzaMarshal(t *testing.T) {
s := &format.Stanza{
Type: "test",
Args: []string{"1", "2", "3"},
Body: nil, // empty
}
buf := &bytes.Buffer{}
s.Marshal(buf)
if exp := "-> test 1 2 3\n\n"; buf.String() != exp {
t.Errorf("wrong empty stanza encoding: expected %q, got %q", exp, buf.String())
}
buf.Reset()
s.Body = []byte("AAA")
s.Marshal(buf)
if exp := "-> test 1 2 3\nQUFB\n"; buf.String() != exp {
t.Errorf("wrong normal stanza encoding: expected %q, got %q", exp, buf.String())
}
buf.Reset()
s.Body = bytes.Repeat([]byte("A"), format.BytesPerLine)
s.Marshal(buf)
if exp := "-> test 1 2 3\nQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFB\n\n"; buf.String() != exp {
t.Errorf("wrong 64 columns stanza encoding: expected %q, got %q", exp, buf.String())
}
}
func FuzzMalleability(f *testing.F) {
tests, err := filepath.Glob("../../testdata/testkit/*")
if err != nil {
f.Fatal(err)
}
for _, test := range tests {
contents, err := os.ReadFile(test)
if err != nil {
f.Fatal(err)
}
_, contents, ok := bytes.Cut(contents, []byte("\n\n"))
if !ok {
f.Fatal("testkit file without header")
}
f.Add(contents)
}
f.Fuzz(func(t *testing.T, data []byte) {
h, payload, err := format.Parse(bytes.NewReader(data))
if err != nil {
if h != nil {
t.Error("h != nil on error")
}
if payload != nil {
t.Error("payload != nil on error")
}
t.Skip()
}
w := &bytes.Buffer{}
if err := h.Marshal(w); err != nil {
t.Fatal(err)
}
if _, err := io.Copy(w, payload); err != nil {
t.Fatal(err)
}
if !bytes.Equal(w.Bytes(), data) {
t.Error("Marshal output different from input")
}
})
}
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