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package memfs
import (
"io"
"testing"
"gopkg.in/src-d/go-billy.v4"
"gopkg.in/src-d/go-billy.v4/test"
. "gopkg.in/check.v1"
)
func Test(t *testing.T) { TestingT(t) }
type MemorySuite struct {
test.FilesystemSuite
path string
}
var _ = Suite(&MemorySuite{})
func (s *MemorySuite) SetUpTest(c *C) {
s.FilesystemSuite = test.NewFilesystemSuite(New())
}
func (s *MemorySuite) TestCapabilities(c *C) {
_, ok := s.FS.(billy.Capable)
c.Assert(ok, Equals, true)
caps := billy.Capabilities(s.FS)
c.Assert(caps, Equals, billy.DefaultCapabilities&^billy.LockCapability)
}
func (s *MemorySuite) TestNegativeOffsets(c *C) {
f, err := s.FS.Create("negative")
c.Assert(err, IsNil)
buf := make([]byte, 100)
_, err = f.ReadAt(buf, -100)
c.Assert(err, ErrorMatches, "readat negative: negative offset")
_, err = f.Seek(-100, io.SeekCurrent)
c.Assert(err, IsNil)
_, err = f.Write(buf)
c.Assert(err, ErrorMatches, "writeat negative: negative offset")
}
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