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|
package helper_test
import (
"context"
"errors"
"fmt"
"io"
"os"
"strconv"
"strings"
"testing"
"time"
"git.gensokyo.uk/security/hakurei/helper"
)
var (
wantArgs = []string{
"unix:path=/run/dbus/system_bus_socket",
"/tmp/hakurei.1971/12622d846cc3fe7b4c10359d01f0eb47/system_bus_socket",
"--filter",
"--talk=org.bluez",
"--talk=org.freedesktop.Avahi",
"--talk=org.freedesktop.UPower",
}
wantPayload = strings.Join(wantArgs, "\x00") + "\x00"
argsWt = helper.MustNewCheckedArgs(wantArgs)
)
func argF(argsFd, statFd int) []string {
if argsFd == -1 {
panic("invalid args fd")
}
return argFChecked(argsFd, statFd)
}
func argFChecked(argsFd, statFd int) (args []string) {
args = make([]string, 0, 6)
args = append(args, "-test.run=TestHelperStub", "--")
if argsFd > -1 {
args = append(args, "--args", strconv.Itoa(argsFd))
}
if statFd > -1 {
args = append(args, "--fd", strconv.Itoa(statFd))
}
return
}
// this function tests an implementation of the helper.Helper interface
func testHelper(t *testing.T, createHelper func(ctx context.Context, setOutput func(stdoutP, stderrP *io.Writer), stat bool) helper.Helper) {
oldWaitDelay := helper.WaitDelay
helper.WaitDelay = 16 * time.Second
t.Cleanup(func() { helper.WaitDelay = oldWaitDelay })
t.Run("start helper with status channel and wait", func(t *testing.T) {
ctx, cancel := context.WithTimeout(t.Context(), 5*time.Second)
stdout := new(strings.Builder)
h := createHelper(ctx, func(stdoutP, stderrP *io.Writer) { *stdoutP, *stderrP = stdout, os.Stderr }, true)
t.Run("wait not yet started helper", func(t *testing.T) {
defer func() {
r := recover()
if r == nil {
t.Fatalf("Wait did not panic")
}
}()
panic(fmt.Sprintf("unreachable: %v", h.Wait()))
})
t.Log("starting helper stub")
if err := h.Start(); err != nil {
t.Errorf("Start: error = %v", err)
cancel()
return
}
t.Log("cancelling context")
cancel()
t.Run("start already started helper", func(t *testing.T) {
wantErr := "helper: already started"
if err := h.Start(); err != nil && err.Error() != wantErr {
t.Errorf("Start: error = %v, wantErr %v",
err, wantErr)
return
}
})
t.Log("waiting on helper")
if err := h.Wait(); !errors.Is(err, context.Canceled) {
t.Errorf("Wait: error = %v",
err)
}
t.Run("wait already finalised helper", func(t *testing.T) {
wantErr := "exec: Wait was already called"
if err := h.Wait(); err != nil && err.Error() != wantErr {
t.Errorf("Wait: error = %v, wantErr %v",
err, wantErr)
return
}
})
if got := trimStdout(stdout); got != wantPayload {
t.Errorf("Start: stdout = %q, want %q",
got, wantPayload)
}
})
t.Run("start helper and wait", func(t *testing.T) {
ctx, cancel := context.WithTimeout(t.Context(), 5*time.Second)
defer cancel()
stdout := new(strings.Builder)
h := createHelper(ctx, func(stdoutP, stderrP *io.Writer) { *stdoutP, *stderrP = stdout, os.Stderr }, false)
if err := h.Start(); err != nil {
t.Errorf("Start: error = %v",
err)
return
}
if err := h.Wait(); err != nil {
t.Errorf("Wait: error = %v stdout = %q",
err, stdout)
}
if got := trimStdout(stdout); got != wantPayload {
t.Errorf("Start: stdout = %q, want %q",
got, wantPayload)
}
})
}
func trimStdout(stdout fmt.Stringer) string {
return strings.TrimPrefix(stdout.String(), "=== RUN TestHelperInit\n")
}
|
