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|
package helper_test
import (
"context"
"errors"
"fmt"
"io"
"os"
"os/exec"
"strings"
"testing"
"time"
"git.gensokyo.uk/security/fortify/helper"
"git.gensokyo.uk/security/fortify/helper/bwrap"
)
func TestBwrap(t *testing.T) {
sc := &bwrap.Config{
Net: true,
Hostname: "localhost",
Chdir: "/proc/nonexistent",
Clearenv: true,
NewSession: true,
DieWithParent: true,
AsInit: true,
}
t.Run("nonexistent bwrap name", func(t *testing.T) {
bubblewrapName := helper.BubblewrapName
helper.BubblewrapName = "/proc/nonexistent"
t.Cleanup(func() { helper.BubblewrapName = bubblewrapName })
h := helper.MustNewBwrap(
context.Background(),
"false",
argsWt, false,
argF, nil,
nil,
sc, nil,
)
if err := h.Start(); !errors.Is(err, os.ErrNotExist) {
t.Errorf("Start: error = %v, wantErr %v",
err, os.ErrNotExist)
}
})
t.Run("valid new helper nil check", func(t *testing.T) {
if got := helper.MustNewBwrap(
context.TODO(),
"false",
argsWt, false,
argF, nil,
nil,
sc, nil,
); got == nil {
t.Errorf("MustNewBwrap(%#v, %#v, %#v) got nil",
sc, argsWt, "false")
return
}
})
t.Run("invalid bwrap config new helper panic", func(t *testing.T) {
defer func() {
wantPanic := "argument contains null character"
if r := recover(); r != wantPanic {
t.Errorf("MustNewBwrap: panic = %q, want %q",
r, wantPanic)
}
}()
helper.MustNewBwrap(
context.TODO(),
"false",
argsWt, false,
argF, nil,
nil,
&bwrap.Config{Hostname: "\x00"}, nil,
)
})
t.Run("start without pipes", func(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
stdout, stderr := new(strings.Builder), new(strings.Builder)
h := helper.MustNewBwrap(
ctx, os.Args[0],
nil, false,
argFChecked, func(cmd *exec.Cmd) { cmd.Stdout, cmd.Stderr = stdout, stderr; hijackBwrap(cmd) },
nil,
sc, nil,
)
if err := h.Start(); err != nil {
t.Errorf("Start: error = %v",
err)
return
}
if err := h.Wait(); err != nil {
t.Errorf("Wait() err = %v stderr = %s",
err, stderr)
}
})
t.Run("implementation compliance", func(t *testing.T) {
testHelper(t, func(ctx context.Context, setOutput func(stdoutP, stderrP *io.Writer), stat bool) helper.Helper {
return helper.MustNewBwrap(
ctx, os.Args[0],
argsWt, stat,
argF, func(cmd *exec.Cmd) { setOutput(&cmd.Stdout, &cmd.Stderr); hijackBwrap(cmd) },
nil,
sc, nil,
)
})
})
}
func hijackBwrap(cmd *exec.Cmd) {
if cmd.Args[0] != "bwrap" {
panic(fmt.Sprintf("unexpected argv0 %q", cmd.Args[0]))
}
cmd.Err = nil
cmd.Path = os.Args[0]
cmd.Args = append([]string{os.Args[0], "-test.run=TestHelperStub", "--"}, cmd.Args...)
}
|
