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go/misc/cgo/test/env.go
Brad Fitzpatrick 623e7de187 os: make Setenv update C environment variables
Fixes #1569

R=rsc, bradfitzwork
CC=golang-dev
https://golang.org/cl/4456045
2011-05-02 12:38:13 -07:00

35 lines
693 B
Go

// Copyright 2011 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 cgotest
/*
#include <stdlib.h>
*/
import "C"
import (
"os"
"testing"
"unsafe"
)
// This is really an os package test but here for convenience.
func testSetEnv(t *testing.T) {
const key = "CGO_OS_TEST_KEY"
const val = "CGO_OS_TEST_VALUE"
os.Setenv(key, val)
keyc := C.CString(key)
defer C.free(unsafe.Pointer(keyc))
v := C.getenv(keyc)
if v == (*C.char)(unsafe.Pointer(uintptr(0))) {
t.Fatal("getenv returned NULL")
}
vs := C.GoString(v)
if vs != val {
t.Fatalf("getenv() = %q; want %q", vs, val)
}
}