diff options
Diffstat (limited to 'test/packetimpact/testbench/dut.go')
| -rw-r--r-- | test/packetimpact/testbench/dut.go | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/packetimpact/testbench/dut.go b/test/packetimpact/testbench/dut.go index aedcf6013..81634b5f4 100644 --- a/test/packetimpact/testbench/dut.go +++ b/test/packetimpact/testbench/dut.go @@ -486,6 +486,23 @@ func (dut *DUT) ListenWithErrno(ctx context.Context, t *testing.T, sockfd, backl return resp.GetRet(), syscall.Errno(resp.GetErrno_()) } +// PollOne calls poll on the DUT and asserts that the expected event must be +// signaled on the given fd within the given timeout. +func (dut *DUT) PollOne(t *testing.T, fd int32, events int16, timeout time.Duration) { + t.Helper() + + pfds := dut.Poll(t, []unix.PollFd{{Fd: fd, Events: events}}, timeout) + if n := len(pfds); n != 1 { + t.Fatalf("Poll returned %d ready file descriptors, expected 1", n) + } + if readyFd := pfds[0].Fd; readyFd != fd { + t.Fatalf("Poll returned an fd %d that was not requested (%d)", readyFd, fd) + } + if got, want := pfds[0].Revents, int16(events); got&want == 0 { + t.Fatalf("Poll returned no events in our interest, got: %#b, want: %#b", got, want) + } +} + // Poll calls poll on the DUT and causes a fatal test failure if it doesn't // succeed. If more control over error handling is needed, use PollWithErrno. // Only pollfds with non-empty revents are returned, the only way to tie the |