141 lines
3.0 KiB
Go
141 lines
3.0 KiB
Go
// Mgmt
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// Copyright (C) 2013-2021+ James Shubin and the project contributors
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// Written by James Shubin <james@shubin.ca> and the project contributors
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//go:build !darwin
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package socketset
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import (
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"sync"
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"testing"
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"golang.org/x/sys/unix"
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)
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// test cases for socketSet.fdSet()
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var fdSetTests = []struct {
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in *SocketSet
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out *unix.FdSet
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}{
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{
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&SocketSet{
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fdEvents: 3,
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fdPipe: 4,
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},
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&unix.FdSet{
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Bits: [16]int64{0x18}, // 11000
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},
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},
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{
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&SocketSet{
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fdEvents: 12,
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fdPipe: 8,
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},
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&unix.FdSet{
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Bits: [16]int64{0x1100}, // 1000100000000
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},
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},
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{
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&SocketSet{
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fdEvents: 9,
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fdPipe: 21,
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},
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&unix.FdSet{
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Bits: [16]int64{0x200200}, // 1000000000001000000000
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},
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},
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}
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// test socketSet.fdSet()
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func TestFdSet(t *testing.T) {
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for _, test := range fdSetTests {
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result := test.in.fdSet()
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if *result != *test.out {
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t.Errorf("fdSet test wanted: %b, got: %b", *test.out, *result)
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}
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}
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}
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// test cases for socketSet.nfd()
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var nfdTests = []struct {
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in *SocketSet
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out int
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}{
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{
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&SocketSet{
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fdEvents: 3,
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fdPipe: 4,
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},
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5,
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},
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{
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&SocketSet{
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fdEvents: 8,
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fdPipe: 4,
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},
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9,
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},
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{
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&SocketSet{
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fdEvents: 90,
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fdPipe: 900,
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},
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901,
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},
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}
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// test socketSet.nfd()
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func TestNfd(t *testing.T) {
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for _, test := range nfdTests {
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result := test.in.nfd()
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if result != test.out {
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t.Errorf("nfd test wanted: %d, got: %d", test.out, result)
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}
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}
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}
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// test SocketSet.Shutdown()
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func TestShutdown(t *testing.T) {
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// pass 0 so we create a socket that doesn't receive any events
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ss, err := NewSocketSet(0, "pipe.sock", 0)
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if err != nil {
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t.Errorf("could not create SocketSet: %+v", err)
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}
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// waitgroup for netlink receive goroutine
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wg := &sync.WaitGroup{}
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defer ss.Close()
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// We must wait for the Shutdown() AND the select inside of SocketSet to
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// complete before we Close, since the unblocking in SocketSet is not a
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// synchronous operation.
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defer wg.Wait()
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defer ss.Shutdown() // close the netlink socket and unblock conn.receive()
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closeChan := make(chan struct{})
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defer close(closeChan)
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// create a listener that never receives any data
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wg.Add(1) // add a waitgroup to ensure this will block if we don't properly unblock Select
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go func() {
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defer wg.Done()
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_, _ = ss.ReceiveBytes() // this should block
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select {
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case <-closeChan:
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return
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}
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}()
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}
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