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8d9dcc467b
Test helper functions mktmpfifo and chtmpdir were written before t.Cleanup was available, which necessitated returning of a cleanup function and the use of defer. Let's use t.Cleanup (available since Go 1.14) and simplify the callers. While at it, - use t.Helper (added in Go 1.9); - simplify some error messages (errors that come from os package usually doesn't need to be wrapped). Change-Id: Id981ae1c85fa2642a76358a31fc18a9af2f78711 Reviewed-on: https://go-review.googlesource.com/c/sys/+/526695 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
50 lines
1005 B
Go
50 lines
1005 B
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package unix_test
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import (
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"testing"
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"time"
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"golang.org/x/sys/unix"
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)
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func TestPpoll(t *testing.T) {
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chtmpdir(t)
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f := mktmpfifo(t)
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const timeout = 100 * time.Millisecond
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ok := make(chan bool, 1)
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go func() {
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select {
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case <-time.After(10 * timeout):
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t.Errorf("Ppoll: failed to timeout after %d", 10*timeout)
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case <-ok:
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}
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}()
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fds := []unix.PollFd{{Fd: int32(f.Fd()), Events: unix.POLLIN}}
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timeoutTs := unix.NsecToTimespec(int64(timeout))
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n, err := unix.Ppoll(fds, &timeoutTs, nil)
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ok <- true
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if err != nil {
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t.Errorf("Ppoll: unexpected error: %v", err)
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return
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}
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if n != 0 {
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t.Errorf("Ppoll: wrong number of events: got %v, expected %v", n, 0)
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return
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}
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}
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func TestSysctlUvmexp(t *testing.T) {
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uvm, err := unix.SysctlUvmexp("vm.uvmexp")
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if err != nil {
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t.Fatal(err)
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}
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t.Logf("free = %v", uvm.Free)
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}
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