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//go:build darwin || linux
// +build darwin linux
package signal // import "github.com/docker/docker/pkg/signal"
import (
"os"
"syscall"
"testing"
"time"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
)
func TestCatchAll(t *testing.T) {
t.Skip("DM - Skip flaky test")
sigs := make(chan os.Signal, 1)
CatchAll(sigs)
defer StopCatch(sigs)
listOfSignals := map[string]string{
"CONT": syscall.SIGCONT.String(),
"HUP": syscall.SIGHUP.String(),
"CHLD": syscall.SIGCHLD.String(),
"ILL": syscall.SIGILL.String(),
"FPE": syscall.SIGFPE.String(),
"CLD": syscall.SIGCLD.String(),
}
for sigStr := range listOfSignals {
if signal, ok := SignalMap[sigStr]; ok {
syscall.Kill(syscall.Getpid(), signal)
s := <-sigs
assert.Check(t, is.Equal(s.String(), signal.String()))
}
}
}
func TestCatchAllIgnoreSigUrg(t *testing.T) {
sigs := make(chan os.Signal, 1)
CatchAll(sigs)
defer StopCatch(sigs)
err := syscall.Kill(syscall.Getpid(), syscall.SIGURG)
assert.NilError(t, err)
timer := time.NewTimer(1 * time.Second)
defer timer.Stop()
select {
case <-timer.C:
case s := <-sigs:
t.Fatalf("expected no signals to be handled, but received %q", s.String())
}
}
func TestStopCatch(t *testing.T) {
t.Skip("DM - Skip flaky test")
signal := SignalMap["HUP"]
channel := make(chan os.Signal, 1)
CatchAll(channel)
syscall.Kill(syscall.Getpid(), signal)
signalString := <-channel
assert.Check(t, is.Equal(signalString.String(), signal.String()))
StopCatch(channel)
_, ok := <-channel
assert.Check(t, is.Equal(ok, false))
}
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