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fileinfo_test.go
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fileinfo_test.go
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//go:build windows
// +build windows
package winio
import (
"os"
"testing"
"golang.org/x/sys/windows"
)
// Checks if current matches expected. Note that AllocationSize is filesystem-specific,
// so we check that the current.AllocationSize is >= expected.AllocationSize.
// https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-fscc/5afa7f66-619c-48f3-955f-68c4ece704ae
func checkFileStandardInfo(t *testing.T, current, expected *FileStandardInfo) {
t.Helper()
if current.AllocationSize < expected.AllocationSize {
t.Fatalf("FileStandardInfo unexpectedly had AllocationSize %d, expecting >=%d", current.AllocationSize, expected.AllocationSize)
}
if current.EndOfFile != expected.EndOfFile {
t.Fatalf("FileStandardInfo unexpectedly had EndOfFile %d, expecting %d", current.EndOfFile, expected.EndOfFile)
}
if current.NumberOfLinks != expected.NumberOfLinks {
t.Fatalf("FileStandardInfo unexpectedly had NumberOfLinks %d, expecting %d", current.NumberOfLinks, expected.NumberOfLinks)
}
if current.DeletePending != expected.DeletePending {
if current.DeletePending {
t.Fatalf("FileStandardInfo unexpectedly DeletePending")
} else {
t.Fatalf("FileStandardInfo unexpectedly not DeletePending")
}
}
if current.Directory != expected.Directory {
if current.Directory {
t.Fatalf("FileStandardInfo unexpectedly Directory")
} else {
t.Fatalf("FileStandardInfo unexpectedly not Directory")
}
}
}
func TestGetFileStandardInfo_File(t *testing.T) {
f, err := os.CreateTemp("", "tst")
if err != nil {
t.Fatal(err)
}
defer f.Close()
defer os.Remove(f.Name())
expectedFileInfo := &FileStandardInfo{
AllocationSize: 0,
EndOfFile: 0,
NumberOfLinks: 1,
DeletePending: false,
Directory: false,
}
info, err := GetFileStandardInfo(f)
if err != nil {
t.Fatal(err)
}
checkFileStandardInfo(t, info, expectedFileInfo)
bytesWritten, err := f.Write([]byte("0123456789"))
if err != nil {
t.Fatal(err)
}
expectedFileInfo.EndOfFile = int64(bytesWritten)
expectedFileInfo.AllocationSize = int64(bytesWritten)
info, err = GetFileStandardInfo(f)
if err != nil {
t.Fatal(err)
}
checkFileStandardInfo(t, info, expectedFileInfo)
linkName := f.Name() + ".link"
if err = os.Link(f.Name(), linkName); err != nil {
t.Fatal(err)
}
defer os.Remove(linkName)
expectedFileInfo.NumberOfLinks = 2
info, err = GetFileStandardInfo(f)
if err != nil {
t.Fatal(err)
}
checkFileStandardInfo(t, info, expectedFileInfo)
os.Remove(linkName)
expectedFileInfo.NumberOfLinks = 1
info, err = GetFileStandardInfo(f)
if err != nil {
t.Fatal(err)
}
checkFileStandardInfo(t, info, expectedFileInfo)
}
func TestGetFileStandardInfo_Directory(t *testing.T) {
tempDir := t.TempDir()
// os.Open returns the Search Handle, not the Directory Handle
// See https://github.com/golang/go/issues/13738
f, err := OpenForBackup(tempDir, windows.GENERIC_READ, 0, windows.OPEN_EXISTING)
if err != nil {
t.Fatal(err)
}
defer f.Close()
expectedFileInfo := &FileStandardInfo{
AllocationSize: 0,
EndOfFile: 0,
NumberOfLinks: 1,
DeletePending: false,
Directory: true,
}
info, err := GetFileStandardInfo(f)
if err != nil {
t.Fatal(err)
}
checkFileStandardInfo(t, info, expectedFileInfo)
}