1// Copyright 2013 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package syscall_test
6
7import (
8	"internal/testenv"
9	"os"
10	"runtime"
11	"syscall"
12	"testing"
13)
14
15func testSetGetenv(t *testing.T, key, value string) {
16	err := syscall.Setenv(key, value)
17	if err != nil {
18		t.Fatalf("Setenv failed to set %q: %v", value, err)
19	}
20	newvalue, found := syscall.Getenv(key)
21	if !found {
22		t.Fatalf("Getenv failed to find %v variable (want value %q)", key, value)
23	}
24	if newvalue != value {
25		t.Fatalf("Getenv(%v) = %q; want %q", key, newvalue, value)
26	}
27}
28
29func TestEnv(t *testing.T) {
30	testSetGetenv(t, "TESTENV", "AVALUE")
31	// make sure TESTENV gets set to "", not deleted
32	testSetGetenv(t, "TESTENV", "")
33}
34
35// Check that permuting child process fds doesn't interfere with
36// reporting of fork/exec status. See Issue 14979.
37func TestExecErrPermutedFds(t *testing.T) {
38	testenv.MustHaveExec(t)
39
40	attr := &os.ProcAttr{Files: []*os.File{os.Stdin, os.Stderr, os.Stdout}}
41	_, err := os.StartProcess("/", []string{"/"}, attr)
42	if err == nil {
43		t.Fatalf("StartProcess of invalid program returned err = nil")
44	}
45}
46
47func TestGettimeofday(t *testing.T) {
48	if runtime.GOOS == "js" {
49		t.Skip("not implemented on " + runtime.GOOS)
50	}
51	tv := &syscall.Timeval{}
52	if err := syscall.Gettimeofday(tv); err != nil {
53		t.Fatal(err)
54	}
55	if tv.Sec == 0 && tv.Usec == 0 {
56		t.Fatal("Sec and Usec both zero")
57	}
58}
59