diff --git a/.gitignore b/.gitignore
index f49a9e6..cbf0a0a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 .vscode
 .idea
 
+robot_test.png
 # Examples
 examples/screen/screen
 examples/screen/saveCapture.png
diff --git a/go.mod b/go.mod
index 69753bd..f05f269 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/robotn/xgbutil v0.0.0-20190912154524-c861d6f87770
 	github.com/vcaesar/gops v0.0.0-20200120141635-c9dda03b64e2
 	github.com/vcaesar/imgo v0.0.0-20191008162304-a83ea7753bc8
-	github.com/vcaesar/tt v0.0.0-20191220180712-e14ab9e55f21
+	github.com/vcaesar/tt v0.0.0-20200124150044-d4f30cc912c1
 	golang.org/x/image v0.0.0-20200119044424-58c23975cae1
 	golang.org/x/net v0.0.0-20190724013045-ca1201d0de80 // indirect
 	golang.org/x/sys v0.0.0-20200120150407-c1edf535530b // indirect
diff --git a/go.sum b/go.sum
index 25f723b..03cd8a2 100644
--- a/go.sum
+++ b/go.sum
@@ -39,8 +39,8 @@ github.com/vcaesar/gops v0.0.0-20200120141635-c9dda03b64e2 h1:9CzTc16j5h8olRz5yw
 github.com/vcaesar/gops v0.0.0-20200120141635-c9dda03b64e2/go.mod h1:HDKiKqHeRYwEhBUTjgBHWT/PkwvLusticopFNbGO/eY=
 github.com/vcaesar/imgo v0.0.0-20191008162304-a83ea7753bc8 h1:9Y+hoKBYa+UtzGqkODfs8c0Q6gp2UfniVNsHQWghPi0=
 github.com/vcaesar/imgo v0.0.0-20191008162304-a83ea7753bc8/go.mod h1:52+3yYrTNjWKh+CkQozNRCLWCE/X666yAWPGbYC3DZI=
-github.com/vcaesar/tt v0.0.0-20191220180712-e14ab9e55f21 h1:YDchwpwXTW8FVAgVfBx4s8DPNAEAok+Jt0H3iVOOAlc=
-github.com/vcaesar/tt v0.0.0-20191220180712-e14ab9e55f21/go.mod h1:GHPxQYhn+7OgKakRusH7KJ0M5MhywoeLb8Fcffs/Gtg=
+github.com/vcaesar/tt v0.0.0-20200124150044-d4f30cc912c1 h1:PE/qEgWfcvG00gC5SXIzUv4AAsDPw8u4QSotok0jrU0=
+github.com/vcaesar/tt v0.0.0-20200124150044-d4f30cc912c1/go.mod h1:GHPxQYhn+7OgKakRusH7KJ0M5MhywoeLb8Fcffs/Gtg=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/image v0.0.0-20190910094157-69e4b8554b2a h1:gHevYm0pO4QUbwy8Dmdr01R5r1BuKtfYqRqF0h/Cbh0=
 golang.org/x/image v0.0.0-20190910094157-69e4b8554b2a/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
diff --git a/robotgo_test.go b/robotgo_test.go
index ffb7ee9..d7d7512 100644
--- a/robotgo_test.go
+++ b/robotgo_test.go
@@ -51,3 +51,34 @@ func TestScrollMouse(t *testing.T) {
 
 	Scroll(210, 210)
 }
+
+func TestMoveRelative(t *testing.T) {
+	Move(200, 200)
+	MilliSleep(10)
+
+	MoveRelative(10, -10)
+	MilliSleep(10)
+
+	x, y := GetMousePos()
+	tt.Equal(t, 210, x)
+	tt.Equal(t, 190, y)
+}
+
+func TestMoveSmoothRelative(t *testing.T) {
+	Move(200, 200)
+	MilliSleep(10)
+
+	MoveSmoothRelative(10, -10)
+	MilliSleep(10)
+
+	x, y := GetMousePos()
+	tt.Equal(t, 210, x)
+	tt.Equal(t, 190, y)
+}
+
+func TestBitmap(t *testing.T) {
+	bit := CaptureScreen()
+	tt.NotNil(t, bit)
+	e := SaveBitmap(bit, "robot_test.png")
+	tt.Empty(t, e)
+}