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mirror of https://github.com/wader/fq.git synced 2024-12-27 15:42:07 +03:00
fq/format/fuzz_test.go
Mattias Wadman b08ef00dd1 decode,interp: Refactor format groups into a proper struct
Replaces []Format with a Group type.
A bit more type safe.
Breaking change for RegisterFormat, now takes a first argument that is a "single" format group.
Lots of naming cleanup.

This is also preparation for decode group argument which will enable doing intresting
probing, ex a format decoder could know it's decode as part of probe group  (html could
be probed possibly), or have "arg probe" group for decoder who inspect args to know
if they should probe (-d /path/to/schema etc) to enable nice CLI-ergonomics.
2023-04-29 20:02:34 +02:00

135 lines
2.9 KiB
Go

package format_test
import (
"bytes"
"context"
"fmt"
"io"
"io/fs"
"os"
"path/filepath"
"testing"
_ "github.com/wader/fq/format/all"
"github.com/wader/fq/pkg/decode"
"github.com/wader/fq/pkg/interp"
)
type fuzzFS struct{}
func (fuzzFS) Open(name string) (fs.File, error) {
return nil, fmt.Errorf("%s: file not found", name)
}
type fuzzTest struct {
b []byte
f *decode.Format
}
type fuzzTestInput struct {
interp.FileReader
io.Writer
}
func (fuzzTestInput) IsTerminal() bool { return false }
func (fuzzTestInput) Size() (int, int) { return 120, 25 }
type fuzzTestOutput struct {
io.Writer
}
func (o fuzzTestOutput) Size() (int, int) { return 120, 25 }
func (o fuzzTestOutput) IsTerminal() bool { return false }
func (ft *fuzzTest) Platform() interp.Platform { return interp.Platform{} }
func (ft *fuzzTest) Stdin() interp.Input {
return fuzzTestInput{FileReader: interp.FileReader{R: bytes.NewBuffer(ft.b)}}
}
func (ft *fuzzTest) Stdout() interp.Output { return fuzzTestOutput{io.Discard} }
func (ft *fuzzTest) Stderr() interp.Output { return fuzzTestOutput{io.Discard} }
func (ft *fuzzTest) InterruptChan() chan struct{} { return nil }
func (ft *fuzzTest) Environ() []string { return nil }
func (ft *fuzzTest) Args() []string {
return []string{
`fq`,
`-d`, ft.f.Name,
`.`,
}
}
func (ft *fuzzTest) ConfigDir() (string, error) { return "/config", nil }
func (ft *fuzzTest) FS() fs.FS { return fuzzFS{} }
func (ft *fuzzTest) History() ([]string, error) { return nil, nil }
func (ft *fuzzTest) Readline(opts interp.ReadlineOpts) (string, error) {
return "", io.EOF
}
func FuzzFormats(f *testing.F) {
if os.Getenv("FUZZTEST") == "" {
f.Skip("run with FUZZTEST=1 to fuzz")
}
i := 0
if err := filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
if filepath.Base(path) != "testdata" {
return nil
}
if err := filepath.Walk(path, func(path string, info os.FileInfo, err error) error {
if filepath.Ext(path) == ".fqtest" {
return nil
}
if st, err := os.Stat(path); err != nil || st.IsDir() {
return err
}
b, readErr := os.ReadFile(path)
if readErr != nil {
f.Fatal(err)
}
f.Logf("seed#%d %s", i, path)
f.Add(b)
i++
return nil
}); err != nil {
f.Fatal(f)
}
return nil
}); err != nil {
f.Fatal(f)
}
fi := 0
var g *decode.Group
if n := os.Getenv("GROUP"); n != "" {
var err error
g, err = interp.DefaultRegistry.Group(n)
if err != nil {
f.Fatal(err)
}
f.Logf("GROUP=%s", n)
} else {
g = interp.DefaultRegistry.MustAll()
}
f.Fuzz(func(t *testing.T, b []byte) {
fz := &fuzzTest{b: b, f: g.Formats[fi]}
q, err := interp.New(fz, interp.DefaultRegistry)
if err != nil {
t.Fatal(err)
}
_ = q.Main(context.Background(), fz.Stdout(), "fuzz")
// if err != nil {
// // TODO: expect error
// t.Fatal(err)
// }
fi = (fi + 1) % len(g.Formats)
})
}