forked from src-d/go-billy
/
symlink.go
221 lines (170 loc) · 5.3 KB
/
symlink.go
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package test
import (
"io/ioutil"
"os"
. "gopkg.in/check.v1"
. "gopkg.in/src-d/go-billy.v3"
"gopkg.in/src-d/go-billy.v3/util"
)
// SymlinkSuite is a convenient test suite to validate any implementation of
// billy.Symlink
type SymlinkSuite struct {
FS interface {
Basic
Symlink
}
}
func (s *SymlinkSuite) TestSymlink(c *C) {
err := util.WriteFile(s.FS, "file", nil, 0644)
c.Assert(err, IsNil)
err = s.FS.Symlink("file", "link")
c.Assert(err, IsNil)
fi, err := s.FS.Stat("link")
c.Assert(err, IsNil)
c.Assert(fi.Name(), Equals, "link")
}
func (s *SymlinkSuite) TestSymlinkCrossDirs(c *C) {
err := util.WriteFile(s.FS, "foo/file", nil, 0644)
c.Assert(err, IsNil)
err = s.FS.Symlink("../foo/file", "bar/link")
c.Assert(err, IsNil)
fi, err := s.FS.Stat("bar/link")
c.Assert(err, IsNil)
c.Assert(fi.Name(), Equals, "link")
}
func (s *SymlinkSuite) TestSymlinkNested(c *C) {
err := util.WriteFile(s.FS, "file", []byte("hello world!"), 0644)
c.Assert(err, IsNil)
err = s.FS.Symlink("file", "linkA")
c.Assert(err, IsNil)
err = s.FS.Symlink("linkA", "linkB")
c.Assert(err, IsNil)
fi, err := s.FS.Stat("linkB")
c.Assert(err, IsNil)
c.Assert(fi.Name(), Equals, "linkB")
c.Assert(fi.Size(), Equals, int64(12))
}
func (s *SymlinkSuite) TestSymlinkWithNonExistentdTarget(c *C) {
err := s.FS.Symlink("file", "link")
c.Assert(err, IsNil)
_, err = s.FS.Stat("link")
c.Assert(os.IsNotExist(err), Equals, true)
}
func (s *SymlinkSuite) TestSymlinkWithExistingLink(c *C) {
err := util.WriteFile(s.FS, "link", nil, 0644)
c.Assert(err, IsNil)
err = s.FS.Symlink("file", "link")
c.Assert(err, Not(IsNil))
}
func (s *SymlinkSuite) TestOpenWithSymlinkToRelativePath(c *C) {
err := util.WriteFile(s.FS, "dir/file", []byte("foo"), 0644)
c.Assert(err, IsNil)
err = s.FS.Symlink("file", "dir/link")
c.Assert(err, IsNil)
f, err := s.FS.Open("dir/link")
c.Assert(err, IsNil)
all, err := ioutil.ReadAll(f)
c.Assert(err, IsNil)
c.Assert(string(all), Equals, "foo")
c.Assert(f.Close(), IsNil)
}
func (s *SymlinkSuite) TestOpenWithSymlinkToAbsolutePath(c *C) {
err := util.WriteFile(s.FS, "dir/file", []byte("foo"), 0644)
c.Assert(err, IsNil)
err = s.FS.Symlink("/dir/file", "dir/link")
c.Assert(err, IsNil)
f, err := s.FS.Open("dir/link")
c.Assert(err, IsNil)
all, err := ioutil.ReadAll(f)
c.Assert(err, IsNil)
c.Assert(string(all), Equals, "foo")
c.Assert(f.Close(), IsNil)
}
func (s *SymlinkSuite) TestReadlink(c *C) {
err := util.WriteFile(s.FS, "file", nil, 0644)
c.Assert(err, IsNil)
_, err = s.FS.Readlink("file")
c.Assert(err, Not(IsNil))
}
func (s *SymlinkSuite) TestReadlinkWithRelativePath(c *C) {
err := util.WriteFile(s.FS, "dir/file", nil, 0644)
c.Assert(err, IsNil)
err = s.FS.Symlink("file", "dir/link")
c.Assert(err, IsNil)
oldname, err := s.FS.Readlink("dir/link")
c.Assert(err, IsNil)
c.Assert(oldname, Equals, "file")
}
func (s *SymlinkSuite) TestReadlinkWithAbsolutePath(c *C) {
err := util.WriteFile(s.FS, "dir/file", nil, 0644)
c.Assert(err, IsNil)
err = s.FS.Symlink("/dir/file", "dir/link")
c.Assert(err, IsNil)
oldname, err := s.FS.Readlink("dir/link")
c.Assert(err, IsNil)
c.Assert(oldname, Equals, expectedSymlinkTarget)
}
func (s *SymlinkSuite) TestReadlinkWithNonExistentTarget(c *C) {
err := s.FS.Symlink("file", "link")
c.Assert(err, IsNil)
oldname, err := s.FS.Readlink("link")
c.Assert(err, IsNil)
c.Assert(oldname, Equals, "file")
}
func (s *SymlinkSuite) TestReadlinkWithNonExistentLink(c *C) {
_, err := s.FS.Readlink("link")
c.Assert(os.IsNotExist(err), Equals, true)
}
func (s *SymlinkSuite) TestStatLink(c *C) {
util.WriteFile(s.FS, "foo/bar", []byte("foo"), customMode)
s.FS.Symlink("bar", "foo/qux")
fi, err := s.FS.Stat("foo/qux")
c.Assert(err, IsNil)
c.Assert(fi.Name(), Equals, "qux")
c.Assert(fi.Size(), Equals, int64(3))
c.Assert(fi.Mode(), Equals, customMode)
c.Assert(fi.ModTime().IsZero(), Equals, false)
c.Assert(fi.IsDir(), Equals, false)
}
func (s *SymlinkSuite) TestLstat(c *C) {
util.WriteFile(s.FS, "foo/bar", []byte("foo"), customMode)
fi, err := s.FS.Lstat("foo/bar")
c.Assert(err, IsNil)
c.Assert(fi.Name(), Equals, "bar")
c.Assert(fi.Size(), Equals, int64(3))
c.Assert(fi.Mode()&os.ModeSymlink != 0, Equals, false)
c.Assert(fi.ModTime().IsZero(), Equals, false)
c.Assert(fi.IsDir(), Equals, false)
}
func (s *SymlinkSuite) TestLstatLink(c *C) {
util.WriteFile(s.FS, "foo/bar", []byte("fosddddaaao"), customMode)
s.FS.Symlink("bar", "foo/qux")
fi, err := s.FS.Lstat("foo/qux")
c.Assert(err, IsNil)
c.Assert(fi.Name(), Equals, "qux")
c.Assert(fi.Mode()&os.ModeSymlink != 0, Equals, true)
c.Assert(fi.ModTime().IsZero(), Equals, false)
c.Assert(fi.IsDir(), Equals, false)
}
func (s *SymlinkSuite) TestRenameWithSymlink(c *C) {
err := s.FS.Symlink("file", "link")
c.Assert(err, IsNil)
err = s.FS.Rename("link", "newlink")
c.Assert(err, IsNil)
_, err = s.FS.Readlink("newlink")
c.Assert(err, IsNil)
}
func (s *SymlinkSuite) TestRemoveWithSymlink(c *C) {
err := util.WriteFile(s.FS, "file", []byte("foo"), 0644)
c.Assert(err, IsNil)
err = s.FS.Symlink("file", "link")
c.Assert(err, IsNil)
err = s.FS.Remove("link")
c.Assert(err, IsNil)
_, err = s.FS.Readlink("link")
c.Assert(os.IsNotExist(err), Equals, true)
_, err = s.FS.Stat("link")
c.Assert(os.IsNotExist(err), Equals, true)
_, err = s.FS.Stat("file")
c.Assert(err, IsNil)
}