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142 lines
3.0 KiB
Go
142 lines
3.0 KiB
Go
package fuse_test
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import (
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"context"
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"io/ioutil"
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"os"
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"path"
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"runtime"
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"strings"
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"testing"
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"github.com/jacobsa/fuse"
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"github.com/jacobsa/fuse/fuseops"
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"github.com/jacobsa/fuse/fuseutil"
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)
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////////////////////////////////////////////////////////////////////////
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// minimalFS
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////////////////////////////////////////////////////////////////////////
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// A minimal fuseutil.FileSystem that can successfully mount but do nothing
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// else.
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type minimalFS struct {
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fuseutil.NotImplementedFileSystem
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}
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func (fs *minimalFS) StatFS(
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ctx context.Context,
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op *fuseops.StatFSOp) error {
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return nil
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}
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////////////////////////////////////////////////////////////////////////
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// Tests
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////////////////////////////////////////////////////////////////////////
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func TestSuccessfulMount(t *testing.T) {
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ctx := context.Background()
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// Set up a temporary directory.
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dir, err := ioutil.TempDir("", "mount_test")
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if err != nil {
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t.Fatalf("ioutil.TempDir: %v", err)
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}
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defer os.RemoveAll(dir)
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// Mount.
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fs := &minimalFS{}
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mfs, err := fuse.Mount(
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dir,
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fuseutil.NewFileSystemServer(fs),
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&fuse.MountConfig{})
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if err != nil {
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t.Fatalf("fuse.Mount: %v", err)
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}
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defer func() {
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if err := mfs.Join(ctx); err != nil {
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t.Errorf("Joining: %v", err)
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}
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}()
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defer fuse.Unmount(mfs.Dir())
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}
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func TestNonEmptyMountPoint(t *testing.T) {
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ctx := context.Background()
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// osxfuse appears to be happy to mount over a non-empty mount point.
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//
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// We leave this test in for Linux, because it tickles the behavior of
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// fusermount writing to stderr and exiting with an error code. We want to
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// make sure that a descriptive error makes it back to the user.
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if runtime.GOOS == "darwin" {
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return
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}
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// Set up a temporary directory.
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dir, err := ioutil.TempDir("", "mount_test")
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if err != nil {
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t.Fatalf("ioutil.TempDir: %v", err)
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}
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defer os.RemoveAll(dir)
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// Add a file within it.
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err = ioutil.WriteFile(path.Join(dir, "foo"), []byte{}, 0600)
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if err != nil {
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t.Fatalf("ioutil.WriteFile: %v", err)
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}
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// Attempt to mount.
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fs := &minimalFS{}
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mfs, err := fuse.Mount(
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dir,
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fuseutil.NewFileSystemServer(fs),
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&fuse.MountConfig{})
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if err == nil {
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fuse.Unmount(mfs.Dir())
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mfs.Join(ctx)
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t.Fatal("fuse.Mount returned nil")
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}
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const want = "not empty"
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if got := err.Error(); !strings.Contains(got, want) {
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t.Errorf("Unexpected error: %v", got)
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}
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}
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func TestNonexistentMountPoint(t *testing.T) {
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ctx := context.Background()
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// Set up a temporary directory.
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dir, err := ioutil.TempDir("", "mount_test")
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if err != nil {
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t.Fatalf("ioutil.TempDir: %v", err)
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}
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defer os.RemoveAll(dir)
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// Attempt to mount into a sub-directory that doesn't exist.
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fs := &minimalFS{}
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mfs, err := fuse.Mount(
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path.Join(dir, "foo"),
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fuseutil.NewFileSystemServer(fs),
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&fuse.MountConfig{})
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if err == nil {
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fuse.Unmount(mfs.Dir())
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mfs.Join(ctx)
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t.Fatal("fuse.Mount returned nil")
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}
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const want = "no such file"
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if got := err.Error(); !strings.Contains(got, want) {
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t.Errorf("Unexpected error: %v", got)
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}
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}
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