syscall_test.go

Documentation: syscall

		 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  
		 5  package syscall_test
		 6  
		 7  import (
		 8  	"internal/testenv"
		 9  	"os"
		10  	"runtime"
		11  	"syscall"
		12  	"testing"
		13  )
		14  
		15  func 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  
		29  func 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.
		37  func 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  
		47  func 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
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