mirror of git://gcc.gnu.org/git/gcc.git
54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
// Copyright 2018 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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"syscall"
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"testing"
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)
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// testalias checks for aliasing of error strings returned by sys1 and sys2,
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// which both call the function named fn in package syscall
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func testalias(t *testing.T, fn string, sys1, sys2 func() error) {
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err := sys1().Error()
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errcopy := string([]byte(err))
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sys2()
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if err != errcopy {
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t.Errorf("syscall.%s error string changed from %q to %q\n", fn, errcopy, err)
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}
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}
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// issue 13770: errors cannot be nested in Plan 9
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func TestPlan9Syserr(t *testing.T) {
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testalias(t,
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"Syscall",
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func() error {
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return syscall.Mkdir("/", 0)
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},
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func() error {
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return syscall.Mkdir("#", 0)
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})
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testalias(t,
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"Syscall6",
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func() error {
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return syscall.Mount(0, 0, "", 0, "")
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},
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func() error {
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return syscall.Mount(-1, 0, "", 0, "")
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})
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// originally failed only on plan9_arm
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testalias(t,
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"seek",
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func() error {
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_, err := syscall.Seek(0, 0, -1)
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return err
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},
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func() error {
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_, err := syscall.Seek(-1, 0, 0)
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return err
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})
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}
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