68 lines
1.4 KiB
Go
68 lines
1.4 KiB
Go
// Copyright 2023 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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//go:build unix
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package gofmt
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import (
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"os"
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"path/filepath"
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"strings"
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"testing"
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"time"
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)
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func TestPermissions(t *testing.T) {
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if os.Getuid() == 0 {
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t.Skip("skipping permission test when running as root")
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}
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dir := t.TempDir()
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fn := filepath.Join(dir, "perm.go")
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// Create a file that needs formatting without write permission.
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if err := os.WriteFile(filepath.Join(fn), []byte(" package main"), 0o400); err != nil {
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t.Fatal(err)
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}
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// Set mtime of the file in the past.
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past := time.Now().Add(-time.Hour)
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if err := os.Chtimes(fn, past, past); err != nil {
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t.Fatal(err)
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}
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info, err := os.Stat(fn)
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if err != nil {
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t.Fatal(err)
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}
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defer func() { *write = false }()
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*write = true
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initParserMode()
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initRewrite()
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const maxWeight = 2 << 20
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var buf, errBuf strings.Builder
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s := newSequencer(maxWeight, &buf, &errBuf)
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s.Add(fileWeight(fn, info), func(r *reporter) error {
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return processFile(fn, info, nil, r)
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})
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if s.GetExitCode() == 0 {
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t.Fatal("rewrite of read-only file succeeded unexpectedly")
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}
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if errBuf.Len() > 0 {
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t.Log(errBuf)
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}
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info, err = os.Stat(fn)
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if err != nil {
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t.Fatal(err)
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}
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if !info.ModTime().Equal(past) {
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t.Errorf("after rewrite mod time is %v, want %v", info.ModTime(), past)
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}
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}
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