diff --git a/copier.go b/copier.go
index 06af0ed..0fd814e 100644
--- a/copier.go
+++ b/copier.go
@@ -123,43 +123,123 @@ func TestCopier(t *testing.T, store types.Storager) {
 				})
 			})
 		})
+	})
+}
+
+func TestCopierWithDir(t *testing.T, store types.Storager) {
+	Convey("Given a basic Storager", t, func() {
+		c, ok := store.(types.Copier)
+		So(ok, ShouldBeTrue)
+
+		d := store.(types.Direr)
+
+		Convey("When Copy to an existing dir", func() {
+			srcSize := rand.Int63n(4 * 1024 * 1024) // Max file size is 4MB
+			r := io.LimitReader(randbytes.NewRand(), srcSize)
+			src := uuid.New().String()
+
+			_, err := store.Write(src, r, srcSize)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			defer func() {
+				err = store.Delete(src)
+				if err != nil {
+					t.Error(err)
+				}
+			}()
+
+			dst := uuid.New().String()
+			_, err = d.CreateDir(dst)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			defer func() {
+				err = store.Delete(dst, pairs.WithObjectMode(types.ModeDir))
+				if err != nil {
+					t.Error(err)
+				}
+			}()
+
+			err = c.Copy(src, dst)
+			Convey("The error should be ErrObjectModeInvalid", func() {
+				So(errors.Is(err, services.ErrObjectModeInvalid), ShouldBeTrue)
+			})
+		})
+	})
+}
+
+func TestCopierWithVirtualDir(t *testing.T, store types.Storager) {
+	Convey("Given a basic Storager", t, func() {
+		c, ok := store.(types.Copier)
+		So(ok, ShouldBeTrue)
+
+		d := store.(types.Direr)
+
+		Convey("When Copy to an existing dir", func() {
+			srcSize := rand.Int63n(4 * 1024 * 1024) // Max file size is 4MB
+			r := io.LimitReader(randbytes.NewRand(), srcSize)
+			src := uuid.New().String()
+
+			_, err := store.Write(src, r, srcSize)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			defer func() {
+				err = store.Delete(src)
+				if err != nil {
+					t.Error(err)
+				}
+			}()
+
+			dst := uuid.New().String()
+			_, err = d.CreateDir(dst)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			defer func() {
+				err = store.Delete(dst, pairs.WithObjectMode(types.ModeDir))
+				if err != nil {
+					t.Error(err)
+				}
+			}()
 
-		 if d, ok := store.(types.Direr); ok {
-			 Convey("When Copy to an existing dir", func() {
-				 srcSize := rand.Int63n(4 * 1024 * 1024) // Max file size is 4MB
-				 r := io.LimitReader(randbytes.NewRand(), srcSize)
-				 src := uuid.New().String()
-
-				 _, err := store.Write(src, r, srcSize)
-				 if err != nil {
-					 t.Fatal(err)
-				 }
-
-				 defer func() {
-					 err = store.Delete(src)
-					 if err != nil {
-						 t.Error(err)
-					 }
-				 }()
-
-				 dst := uuid.New().String()
-				 _, err = d.CreateDir(dst)
-				 if err != nil {
-					 t.Fatal(err)
-				 }
-
-				 defer func() {
-					 err = store.Delete(dst, pairs.WithObjectMode(types.ModeDir))
-					 if err != nil {
-						 t.Error(err)
-					 }
-				 }()
-
-				 err = c.Copy(src, dst)
-				 Convey("The error should be ErrObjectModeInvalid", func() {
-					 So(errors.Is(err, services.ErrObjectModeInvalid), ShouldBeTrue)
-				 })
-			 })
-		 }
+			err = c.Copy(src, dst)
+
+			defer func() {
+				err = store.Delete(dst)
+				if err != nil {
+					t.Error(err)
+				}
+			}()
+
+			Convey("The error should be nil", func() {
+				So(err, ShouldBeNil)
+			})
+
+			Convey("Stat should get dst object without error", func() {
+				o, err := store.Stat(dst)
+
+				So(err, ShouldBeNil)
+				So(o, ShouldNotBeNil)
+
+				Convey("The Object Mode should be read", func() {
+					So(o.Mode.IsRead(), ShouldBeTrue)
+				})
+
+				Convey("The path and size should be match", func() {
+					So(o, ShouldNotBeNil)
+					So(o.Path, ShouldEqual, dst)
+
+					osize, ok := o.GetContentLength()
+					So(ok, ShouldBeTrue)
+					So(osize, ShouldEqual, srcSize)
+				})
+			})
+		})
 	})
 }
diff --git a/go.mod b/go.mod
index f718ecc..cb24463 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/beyondstorage/go-integration-test/v4
 go 1.15
 
 require (
-	github.com/beyondstorage/go-storage/v4 v4.3.2
+	github.com/beyondstorage/go-storage/v4 v4.4.0
 	github.com/google/uuid v1.3.0
 	github.com/smartystreets/goconvey v1.6.4
 )
diff --git a/go.sum b/go.sum
index f8f8211..deb14a2 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,6 @@
 github.com/Xuanwo/templateutils v0.1.0/go.mod h1:OdE0DJ+CJxDBq6psX5DPV+gOZi8bhuHuVUpPCG++Wb8=
-github.com/beyondstorage/go-storage/v4 v4.3.2 h1:F3xQVTcBJ+nSzEt/wBZCx4pE7aYhy43+tn1mwMYCacE=
-github.com/beyondstorage/go-storage/v4 v4.3.2/go.mod h1:8FHjTUFuwLl/mmIGpOL9g3RTZPyye7vneFN/JkRj5Tg=
+github.com/beyondstorage/go-storage/v4 v4.4.0 h1:sWURraKFjNR4qpwthr45cAGOIx6EOLrrJcz6su4Je30=
+github.com/beyondstorage/go-storage/v4 v4.4.0/go.mod h1:mc9VzBImjXDg1/1sLfta2MJH79elfM6m47ZZvZ+q/Uw=
 github.com/dave/dst v0.26.2/go.mod h1:UMDJuIRPfyUCC78eFuB+SV/WI8oDeyFDvM/JR6NI3IU=
 github.com/dave/gopackages v0.0.0-20170318123100-46e7023ec56e/go.mod h1:i00+b/gKdIDIxuLDFob7ustLAVqhsZRk2qVZrArELGQ=
 github.com/dave/jennifer v1.2.0/go.mod h1:fIb+770HOpJ2fmN9EPPKOqm1vMGhB+TwXKMZhrIygKg=
@@ -11,7 +11,6 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/golang/mock v1.6.0/go.mod h1:p6yTPP+5HYm5mzsMV8JkE6ZKdX+/wYM6Hr+LicevLPs=
 github.com/google/pprof v0.0.0-20181127221834-b4f47329b966/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
-github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
diff --git a/mover.go b/mover.go
index b380e76..10d886a 100644
--- a/mover.go
+++ b/mover.go
@@ -139,44 +139,125 @@ func TestMover(t *testing.T, store types.Storager) {
 				})
 			})
 		})
+	})
+}
+
+func TestMoverWithDir(t *testing.T, store types.Storager) {
+	Convey("Given a basic Storager", t, func() {
+		m, ok := store.(types.Mover)
+		So(ok, ShouldBeTrue)
+
+		d := store.(types.Direr)
+
+		Convey("When Move to an existing dir", func() {
+
+			srcSize := rand.Int63n(4 * 1024 * 1024) // Max file size is 4MB
+			r := io.LimitReader(randbytes.NewRand(), srcSize)
+			src := uuid.New().String()
+
+			_, err := store.Write(src, r, srcSize)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			defer func() {
+				err = store.Delete(src)
+				if err != nil {
+					t.Error(err)
+				}
+			}()
+
+			dst := uuid.New().String()
+			_, err = d.CreateDir(dst)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			defer func() {
+				err = store.Delete(dst, pairs.WithObjectMode(types.ModeDir))
+				if err != nil {
+					t.Error(err)
+				}
+			}()
+
+			err = m.Move(src, dst)
+			Convey("The error should be ErrObjectModeInvalid", func() {
+				So(errors.Is(err, services.ErrObjectModeInvalid), ShouldBeTrue)
+			})
+		})
+	})
+}
+
+func TestMoverWithVirtualDir(t *testing.T, store types.Storager) {
+	Convey("Given a basic Storager", t, func() {
+		m, ok := store.(types.Mover)
+		So(ok, ShouldBeTrue)
+
+		d := store.(types.Direr)
+
+		Convey("When Move to an existing dir", func() {
+
+			srcSize := rand.Int63n(4 * 1024 * 1024) // Max file size is 4MB
+			r := io.LimitReader(randbytes.NewRand(), srcSize)
+			src := uuid.New().String()
+
+			_, err := store.Write(src, r, srcSize)
+			if err != nil {
+				t.Fatal(err)
+			}
 
-		if d, ok := store.(types.Direr); ok {
-			Convey("When Move to an existing dir", func() {
+			defer func() {
+				err = store.Delete(src)
+				if err != nil {
+					t.Error(err)
+				}
+			}()
 
-				srcSize := rand.Int63n(4 * 1024 * 1024) // Max file size is 4MB
-				r := io.LimitReader(randbytes.NewRand(), srcSize)
-				src := uuid.New().String()
+			dst := uuid.New().String()
+			_, err = d.CreateDir(dst)
+			if err != nil {
+				t.Fatal(err)
+			}
 
-				_, err := store.Write(src, r, srcSize)
+			defer func() {
+				err = store.Delete(dst, pairs.WithObjectMode(types.ModeDir))
 				if err != nil {
-					t.Fatal(err)
+					t.Error(err)
 				}
+			}()
 
-				defer func() {
-					err = store.Delete(src)
-					if err != nil {
-						t.Error(err)
-					}
-				}()
+			err = m.Move(src, dst)
 
-				dst := uuid.New().String()
-				_, err = d.CreateDir(dst)
+			defer func() {
+				err = store.Delete(dst)
 				if err != nil {
-					t.Fatal(err)
+					t.Error(err)
 				}
+			}()
 
-				defer func() {
-					err = store.Delete(dst, pairs.WithObjectMode(types.ModeDir))
-					if err != nil {
-						t.Error(err)
-					}
-				}()
+			Convey("The error should be nil", func() {
+				So(err, ShouldBeNil)
+			})
+
+			Convey("Stat should get dst object without error", func() {
+				o, err := store.Stat(dst)
+
+				So(err, ShouldBeNil)
+				So(o, ShouldNotBeNil)
 
-				err = m.Move(src, dst)
-				Convey("The error should be ErrObjectModeInvalid", func() {
-					So(errors.Is(err, services.ErrObjectModeInvalid), ShouldBeTrue)
+				Convey("The Object Mode should be read", func() {
+					So(o.Mode.IsRead(), ShouldBeTrue)
+				})
+
+				Convey("The path and size should be match", func() {
+					So(o, ShouldNotBeNil)
+					So(o.Path, ShouldEqual, dst)
+
+					osize, ok := o.GetContentLength()
+					So(ok, ShouldBeTrue)
+					So(osize, ShouldEqual, srcSize)
 				})
 			})
-		}
+		})
 	})
 }