path: root/swarm/api/swarmfs_test.go

// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package api

import (
    "io/ioutil"
    "os"
    "path/filepath"
    "testing"
)

var testUploadDir, _ = ioutil.TempDir(os.TempDir(), "fuse-source")
var testMountDir, _ = ioutil.TempDir(os.TempDir(), "fuse-dest")

func testFuseFileSystem(t *testing.T, f func(*FileSystem)) {
    testApi(t, func(api *Api) {
        f(NewFileSystem(api))
    })
}

func createTestFiles(t *testing.T, files []string) {
    os.RemoveAll(testUploadDir)
    os.RemoveAll(testMountDir)
    defer os.MkdirAll(testMountDir, 0777)

    for f := range files {
        actualPath := filepath.Join(testUploadDir, files[f])
        filePath := filepath.Dir(actualPath)

        err := os.MkdirAll(filePath, 0777)
        if err != nil {
            t.Fatalf("Error creating directory '%v' : %v", filePath, err)
        }

        _, err1 := os.OpenFile(actualPath, os.O_RDONLY|os.O_CREATE, 0666)
        if err1 != nil {
            t.Fatalf("Error creating file %v: %v", actualPath, err1)
        }
    }

}

func compareFiles(t *testing.T, files []string) {
    for f := range files {
        sourceFile := filepath.Join(testUploadDir, files[f])
        destinationFile := filepath.Join(testMountDir, files[f])

        sfinfo, err := os.Stat(sourceFile)
        if err != nil {
            t.Fatalf("Source file %v missing in mount: %v", files[f], err)
        }

        dfinfo, err := os.Stat(destinationFile)
        if err != nil {
            t.Fatalf("Destination file %v missing in mount: %v", files[f], err)
        }

        if sfinfo.Size() != dfinfo.Size() {
            t.Fatalf("Size mismatch  source (%v) vs destination(%v)", sfinfo.Size(), dfinfo.Size())
        }

        if dfinfo.Mode().Perm().String() != "-r-x------" {
            t.Fatalf("Permission is not 0500for file: %v", err)
        }
    }
}

func doHashTest(fs *FileSystem, t *testing.T, ensName string, files ...string) {
    createTestFiles(t, files)
    bzzhash, err := fs.Upload(testUploadDir, "")
    if err != nil {
        t.Fatalf("Error uploading directory %v: %v", testUploadDir, err)
    }

    swarmfs := NewSwarmFS(fs.api)
    defer swarmfs.Stop()

    _, err = swarmfs.Mount(bzzhash, testMountDir)
    if isFUSEUnsupportedError(err) {
        t.Skip("FUSE not supported:", err)
    } else if err != nil {
        t.Fatalf("Error mounting hash %v: %v", bzzhash, err)
    }

    compareFiles(t, files)

    if _, err := swarmfs.Unmount(testMountDir); err != nil {
        t.Fatalf("Error unmounting path %v: %v", testMountDir, err)
    }
}

// mounting with manifest Hash
func TestFuseMountingScenarios(t *testing.T) {
    testFuseFileSystem(t, func(fs *FileSystem) {
        //doHashTest(fs,t, "test","1.txt")
        doHashTest(fs, t, "", "1.txt")
        doHashTest(fs, t, "", "1.txt", "11.txt", "111.txt", "two/2.txt", "two/two/2.txt", "three/3.txt")
        doHashTest(fs, t, "", "1/2/3/4/5/6/7/8/9/10/11/12/1.txt")
        doHashTest(fs, t, "", "one/one.txt", "one.txt", "once/one.txt", "one/one/one.txt")
    })
}