package cache import ( "fmt" "io" "sync" "testing" "gopkg.in/src-d/go-git.v4/plumbing" . "gopkg.in/check.v1" ) func Test(t *testing.T) { TestingT(t) } type ObjectSuite struct { c Object aObject plumbing.EncodedObject bObject plumbing.EncodedObject cObject plumbing.EncodedObject dObject plumbing.EncodedObject } var _ = Suite(&ObjectSuite{}) func (s *ObjectSuite) SetUpTest(c *C) { s.aObject = newObject("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 1*Byte) s.bObject = newObject("bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", 3*Byte) s.cObject = newObject("cccccccccccccccccccccccccccccccccccccccc", 1*Byte) s.dObject = newObject("dddddddddddddddddddddddddddddddddddddddd", 1*Byte) s.c = NewObjectLRU(2 * Byte) } func (s *ObjectSuite) TestPutSameObject(c *C) { s.c.Put(s.aObject) s.c.Put(s.aObject) _, ok := s.c.Get(s.aObject.Hash()) c.Assert(ok, Equals, true) } func (s *ObjectSuite) TestPutBigObject(c *C) { s.c.Put(s.bObject) _, ok := s.c.Get(s.aObject.Hash()) c.Assert(ok, Equals, false) } func (s *ObjectSuite) TestPutCacheOverflow(c *C) { s.c.Put(s.aObject) s.c.Put(s.cObject) s.c.Put(s.dObject) obj, ok := s.c.Get(s.aObject.Hash()) c.Assert(ok, Equals, false) c.Assert(obj, IsNil) obj, ok = s.c.Get(s.cObject.Hash()) c.Assert(ok, Equals, true) c.Assert(obj, NotNil) obj, ok = s.c.Get(s.dObject.Hash()) c.Assert(ok, Equals, true) c.Assert(obj, NotNil) } func (s *ObjectSuite) TestClear(c *C) { s.c.Put(s.aObject) s.c.Clear() obj, ok := s.c.Get(s.aObject.Hash()) c.Assert(ok, Equals, false) c.Assert(obj, IsNil) } func (s *ObjectSuite) TestConcurrentAccess(c *C) { var wg sync.WaitGroup for i := 0; i < 1000; i++ { wg.Add(3) go func(i int) { s.c.Put(newObject(fmt.Sprint(i), FileSize(i))) wg.Done() }(i) go func(i int) { if i%30 == 0 { s.c.Clear() } wg.Done() }(i) go func(i int) { s.c.Get(plumbing.NewHash(fmt.Sprint(i))) wg.Done() }(i) } wg.Wait() } type dummyObject struct { hash plumbing.Hash size FileSize } func newObject(hash string, size FileSize) plumbing.EncodedObject { return &dummyObject{ hash: plumbing.NewHash(hash), size: size, } } func (d *dummyObject) Hash() plumbing.Hash { return d.hash } func (*dummyObject) Type() plumbing.ObjectType { return plumbing.InvalidObject } func (*dummyObject) SetType(plumbing.ObjectType) {} func (d *dummyObject) Size() int64 { return int64(d.size) } func (*dummyObject) SetSize(s int64) {} func (*dummyObject) Reader() (io.ReadCloser, error) { return nil, nil } func (*dummyObject) Writer() (io.WriteCloser, error) { return nil, nil }