diff --git a/component/util/geometry_test.go b/component/util/geometry_test.go
new file mode 100644
index 0000000..a9f21f5
--- /dev/null
+++ b/component/util/geometry_test.go
@@ -0,0 +1,52 @@
+package util
+
+import "testing"
+import "image"
+
+func TestGetRectLeftSideCenter(t *testing.T) {
+	rect := image.Rect(10, 10, 20, 20)
+	expected := image.Point{
+		X: 10,
+		Y: 15,
+	}
+	result := GetRectLeftSideCenter(rect)
+	if result != expected {
+		t.Errorf("GetRectLeftSideCenter was incorrect. Expected %v, got %v.", expected, result)
+	}
+}
+
+func TestGetRectRightSideCenter(t *testing.T) {
+	rect := image.Rect(10, 10, 20, 21)
+	expected := image.Point{
+		X: 20,
+		Y: 15,
+	}
+	result := GetRectRightSideCenter(rect)
+	if result != expected {
+		t.Errorf("GetRectRightSideCenter was incorrect. Expected %v, got %v.", expected, result)
+	}
+}
+
+func TestGetRectTopSideCenter(t *testing.T) {
+	rect := image.Rect(10, 10, 20, 20)
+	expected := image.Point{
+		X: 15,
+		Y: 10,
+	}
+	result := GetRectTopSideCenter(rect)
+	if result != expected {
+		t.Errorf("GetRectTopSideCenter was incorrect. Expected %v, got %v.", expected, result)
+	}
+}
+
+func TestGetRectBottomSideCenter(t *testing.T) {
+	rect := image.Rect(10, 9, 20, 20)
+	expected := image.Point{
+		X: 15,
+		Y: 20,
+	}
+	result := GetRectBottomSideCenter(rect)
+	if result != expected {
+		t.Errorf("GetRectBottomSideCenter was incorrect. Expected %v, got %v.", expected, result)
+	}
+}