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// Copyright 2013 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.
package syscall_test
import (
"fmt"
"internal/testenv"
"os"
"runtime"
"syscall"
"testing"
)
func testSetGetenv(t *testing.T, key, value string) {
err := syscall.Setenv(key, value)
if err != nil {
t.Fatalf("Setenv failed to set %q: %v", value, err)
}
newvalue, found := syscall.Getenv(key)
if !found {
t.Fatalf("Getenv failed to find %v variable (want value %q)", key, value)
}
if newvalue != value {
t.Fatalf("Getenv(%v) = %q; want %q", key, newvalue, value)
}
}
func TestEnv(t *testing.T) {
testSetGetenv(t, "TESTENV", "AVALUE")
// make sure TESTENV gets set to "", not deleted
testSetGetenv(t, "TESTENV", "")
}
func TestItoa(t *testing.T) {
// Make most negative integer: 0x8000...
i := 1
for i<<1 != 0 {
i <<= 1
}
if i >= 0 {
t.Fatal("bad math")
}
s := syscall.Itoa(i)
f := fmt.Sprint(i)
if s != f {
t.Fatalf("itoa(%d) = %s, want %s", i, s, f)
}
}
// Check that permuting child process fds doesn't interfere with
// reporting of fork/exec status. See Issue 14979.
func TestExecErrPermutedFds(t *testing.T) {
testenv.MustHaveExec(t)
attr := &os.ProcAttr{Files: []*os.File{os.Stdin, os.Stderr, os.Stdout}}
_, err := os.StartProcess("/", []string{"/"}, attr)
if err == nil {
t.Fatalf("StartProcess of invalid program returned err = nil")
}
}
func TestGettimeofday(t *testing.T) {
if runtime.GOOS == "js" {
t.Skip("not implemented on " + runtime.GOOS)
}
tv := &syscall.Timeval{}
if err := syscall.Gettimeofday(tv); err != nil {
t.Fatal(err)
}
if tv.Sec == 0 && tv.Usec == 0 {
t.Fatal("Sec and Usec both zero")
}
}
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