at_windows_test.go

     1  // Copyright 2024 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 windows_test
     6  
     7  import (
     8  	"internal/syscall/windows"
     9  	"os"
    10  	"path/filepath"
    11  	"syscall"
    12  	"testing"
    13  )
    14  
    15  func TestOpen(t *testing.T) {
    16  	t.Parallel()
    17  
    18  	dir := t.TempDir()
    19  	file := filepath.Join(dir, "a")
    20  	f, err := os.Create(file)
    21  	if err != nil {
    22  		t.Fatal(err)
    23  	}
    24  	f.Close()
    25  
    26  	tests := []struct {
    27  		path string
    28  		flag int
    29  		err  error
    30  	}{
    31  		{dir, syscall.O_RDONLY, nil},
    32  		{dir, syscall.O_CREAT, nil},
    33  		{dir, syscall.O_RDONLY | syscall.O_CREAT, nil},
    34  		{file, syscall.O_APPEND | syscall.O_WRONLY | os.O_CREATE, nil},
    35  		{file, syscall.O_APPEND | syscall.O_WRONLY | os.O_CREATE | os.O_TRUNC, nil},
    36  		{dir, syscall.O_RDONLY | syscall.O_TRUNC, syscall.ERROR_ACCESS_DENIED},
    37  		{dir, syscall.O_WRONLY | syscall.O_RDWR, nil}, // TODO: syscall.Open returns EISDIR here, we should reconcile this
    38  		{dir, syscall.O_WRONLY, syscall.EISDIR},
    39  		{dir, syscall.O_RDWR, syscall.EISDIR},
    40  	}
    41  	for i, tt := range tests {
    42  		dir := filepath.Dir(tt.path)
    43  		dirfd, err := syscall.Open(dir, syscall.O_RDONLY, 0)
    44  		if err != nil {
    45  			t.Error(err)
    46  			continue
    47  		}
    48  		base := filepath.Base(tt.path)
    49  		h, err := windows.Openat(dirfd, base, tt.flag, 0o660)
    50  		syscall.CloseHandle(dirfd)
    51  		if err == nil {
    52  			syscall.CloseHandle(h)
    53  		}
    54  		if err != tt.err {
    55  			t.Errorf("%d: Open got %q, want %q", i, err, tt.err)
    56  		}
    57  	}
    58  }
    59
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