Add HTTPFS implementation (#93)

webdav/fs_test.go

@@ -0,0 +1,56 @@
+package webdav
+
+import (
+	"context"
+	"io"
+	"os"
+	"testing"
+
+	"github.com/distribyted/distribyted/fs"
+	"github.com/stretchr/testify/require"
+)
+
+func TestWebDAVFilesystem(t *testing.T) {
+	t.Parallel()
+
+	require := require.New(t)
+
+	mfs := fs.NewMemory()
+	mf := fs.NewMemoryFile([]byte("test file content."))
+	err := mfs.Storage.Add(mf, "/folder/file.txt")
+	require.NoError(err)
+
+	wfs := newFS(mfs)
+
+	dir, err := wfs.OpenFile(context.Background(), "/", 0, 0)
+	require.NoError(err)
+
+	fi, err := dir.Readdir(0)
+	require.NoError(err)
+	require.Len(fi, 1)
+	require.Equal("folder", fi[0].Name())
+
+	file, err := wfs.OpenFile(context.Background(), "/folder/file.txt", 0, 0)
+	require.NoError(err)
+	_, err = file.Readdir(0)
+	require.ErrorIs(err, os.ErrInvalid)
+
+	n, err := file.Seek(5, io.SeekStart)
+	require.NoError(err)
+	require.Equal(int64(5), n)
+
+	br := make([]byte, 4)
+	nn, err := file.Read(br)
+	require.NoError(err)
+	require.Equal(4, nn)
+	require.Equal([]byte("file"), br)
+
+	n, err = file.Seek(0, io.SeekStart)
+	require.NoError(err)
+	require.Equal(int64(0), n)
+
+	nn, err = file.Read(br)
+	require.NoError(err)
+	require.Equal(4, nn)
+	require.Equal([]byte("test"), br)
+}