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|
package fat
import (
"github.com/mitchellh/go-fs"
"io"
"io/ioutil"
"os"
"path/filepath"
"strings"
"testing"
)
func TestAddFile(t *testing.T) {
// Create a temporary file to be our floppy drive
floppyF, err := ioutil.TempFile("", "go-fs")
if err != nil {
t.Fatalf("Error creating temporary file for floppy: %s", err)
}
defer floppyF.Close()
// defer os.Remove(floppyF.Name())
// Set the size of the file to be a floppy sized
if err := floppyF.Truncate(1440 * 1024); err != nil {
t.Fatalf("Error creating floppy: %s", err)
}
// BlockDevice backed by the file for our filesystem
device, err := fs.NewFileDisk(floppyF)
if err != nil {
t.Fatalf("Error creating floppy: %s", err)
}
// Format the block device so it contains a valid FAT filesystem
formatConfig := &SuperFloppyConfig{
FATType: FAT12,
Label: "go-fs",
OEMName: "go-fs",
}
if FormatSuperFloppy(device, formatConfig); err != nil {
t.Fatalf("Error creating floppy: %s", err)
}
// The actual FAT filesystem
fatFs, err := New(device)
if err != nil {
t.Fatalf("Error creating floppy: %s", err)
}
// Get the root directory to the filesystem
rootDir, err := fatFs.RootDir()
if err != nil {
t.Fatalf("Error creating floppy: %s", err)
}
var filenames [128]string
// Go over each file and copy it.
for i := 0; i < 128; i++ {
filenames[i] = strings.Repeat("A", i+1) + ".EXT"
}
for _, filename := range filenames {
if addSingleFile(rootDir, filename); err != nil {
t.Fatalf("Error adding file to floppy: %s", err)
}
}
entries := rootDir.Entries()
for i, entry := range entries {
expecting := filenames[i]
if entry.Name() != expecting {
// Name() returns the short name, how do we get the long name?
// t.Fatalf("Excepting %s, found %s", expecting, entry.Name())
}
}
}
func addSingleFile(dir fs.Directory, src string) error {
inputF, err := os.Create(src)
if err != nil {
return err
}
defer inputF.Close()
defer os.Remove(src)
entry, err := dir.AddFile(filepath.Base(src))
if err != nil {
return err
}
fatFile, err := entry.File()
if err != nil {
return err
}
if _, err := io.Copy(fatFile, inputF); err != nil {
return err
}
return nil
}
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