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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
package unix_test
import (
"testing"
"golang.org/x/sys/unix"
)
func TestFdSet(t *testing.T) {
var fdSet unix.FdSet
fdSet.Zero()
for fd := 0; fd < unix.FD_SETSIZE; fd++ {
if fdSet.IsSet(fd) {
t.Fatalf("Zero did not clear fd %d", fd)
}
fdSet.Set(fd)
}
for fd := 0; fd < unix.FD_SETSIZE; fd++ {
if !fdSet.IsSet(fd) {
t.Fatalf("IsSet(%d): expected true, got false", fd)
}
}
fdSet.Zero()
for fd := 0; fd < unix.FD_SETSIZE; fd++ {
if fdSet.IsSet(fd) {
t.Fatalf("Zero did not clear fd %d", fd)
}
}
for fd := 1; fd < unix.FD_SETSIZE; fd += 2 {
fdSet.Set(fd)
}
for fd := 0; fd < unix.FD_SETSIZE; fd++ {
if fd&0x1 == 0x1 {
if !fdSet.IsSet(fd) {
t.Fatalf("IsSet(%d): expected true, got false", fd)
}
} else {
if fdSet.IsSet(fd) {
t.Fatalf("IsSet(%d): expected false, got true", fd)
}
}
}
for fd := 1; fd < unix.FD_SETSIZE; fd += 2 {
fdSet.Clear(fd)
}
for fd := 0; fd < unix.FD_SETSIZE; fd++ {
if fdSet.IsSet(fd) {
t.Fatalf("Clear(%d) did not clear fd", fd)
}
}
}
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