936615752a
Copy all the misc/cgo files from the gc toolchain into libgo/misc.
These will be used for testing purposes by later changes to the
gotools directory.
Reviewed-on: https://go-review.googlesource.com/46721
From-SVN: r249674
42 lines
977 B
Go
42 lines
977 B
Go
// Copyright 2011 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 cgotest
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/*
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#include <stdlib.h>
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*/
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import "C"
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import (
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"os"
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"runtime"
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"testing"
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"unsafe"
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)
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// This is really an os package test but here for convenience.
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func testSetEnv(t *testing.T) {
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if runtime.GOOS == "windows" {
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// Go uses SetEnvironmentVariable on windows. Howerver,
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// C runtime takes a *copy* at process startup of thei
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// OS environment, and stores it in environ/envp.
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// It is this copy that getenv/putenv manipulate.
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t.Logf("skipping test")
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return
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}
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const key = "CGO_OS_TEST_KEY"
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const val = "CGO_OS_TEST_VALUE"
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os.Setenv(key, val)
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keyc := C.CString(key)
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defer C.free(unsafe.Pointer(keyc))
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v := C.getenv(keyc)
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if uintptr(unsafe.Pointer(v)) == 0 {
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t.Fatal("getenv returned NULL")
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}
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vs := C.GoString(v)
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if vs != val {
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t.Fatalf("getenv() = %q; want %q", vs, val)
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}
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}
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