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