diff --git a/src/test/kotlin/solve/interactive/scene/view/association/AssociationConnectionAdornerTests.kt b/src/test/kotlin/solve/interactive/scene/view/association/AssociationConnectionAdornerTests.kt
index dd924f77..9555c7c2 100644
--- a/src/test/kotlin/solve/interactive/scene/view/association/AssociationConnectionAdornerTests.kt
+++ b/src/test/kotlin/solve/interactive/scene/view/association/AssociationConnectionAdornerTests.kt
@@ -1,6 +1,5 @@
 package solve.interactive.scene.view.association
 
-import javafx.beans.property.SimpleDoubleProperty
 import javafx.scene.layout.Pane
 import javafx.scene.shape.Rectangle
 import org.junit.jupiter.api.Assertions.assertEquals
@@ -11,6 +10,7 @@ import solve.interactive.InteractiveTestClass
 import solve.scene.view.association.AssociationAdorner
 import solve.testMemoryLeak
 import solve.utils.structures.DoublePoint
+import tornadofx.*
 
 @ExtendWith(ApplicationExtension::class)
 internal class AssociationConnectionAdornerTests : InteractiveTestClass() {
@@ -18,11 +18,11 @@ internal class AssociationConnectionAdornerTests : InteractiveTestClass() {
     fun `Adorner rectangle fills the corresponding frame`() {
         val width = 10.0
         val height = 5.0
-        val position = DoublePoint(20.0, 30.0)
-        val scale = SimpleDoubleProperty(1.0)
-        val adorner = AssociationAdorner(width, height, position, scale)
-        assertEquals(position.x, adorner.node.layoutX)
-        assertEquals(position.y, adorner.node.layoutY)
+        val getPosition = { DoublePoint(20.0, 30.0) }
+        val getScale = { 1.0 }
+        val adorner = AssociationAdorner(width, height, getPosition, getScale)
+        assertEquals(getPosition().x, adorner.node.layoutX)
+        assertEquals(getPosition().y, adorner.node.layoutY)
         val pane = adorner.node as Pane
         val rect = pane.children.filterIsInstance<Rectangle>().single()
         assertEquals(width, rect.width)
@@ -33,9 +33,11 @@ internal class AssociationConnectionAdornerTests : InteractiveTestClass() {
     fun `Scale adorner`() {
         val width = 10.0
         val height = 5.0
-        val position = DoublePoint(20.0, 30.0)
-        val scale = SimpleDoubleProperty(2.0)
-        val adorner = AssociationAdorner(width, height, position, scale)
+        val getPosition = { DoublePoint(20.0, 30.0) }
+        val scale = doubleProperty(2.0)
+        val getScale = { scale.value }
+        val adorner = AssociationAdorner(width, height, getPosition, getScale)
+        val position = getPosition()
         assertEquals(position.x * scale.value, adorner.node.layoutX)
         assertEquals(position.y * scale.value, adorner.node.layoutY)
         val pane = adorner.node as Pane
@@ -44,7 +46,7 @@ internal class AssociationConnectionAdornerTests : InteractiveTestClass() {
         assertEquals(height * scale.value, rect.height)
 
         scale.value = 0.5
-
+        Thread.sleep(100)
         assertEquals(position.x * scale.value, adorner.node.layoutX)
         assertEquals(position.y * scale.value, adorner.node.layoutY)
         assertEquals(width * scale.value, rect.width)
@@ -53,10 +55,10 @@ internal class AssociationConnectionAdornerTests : InteractiveTestClass() {
 
     @Test
     fun `Adorner can be garbage collected after dispose`() {
-        val scale = SimpleDoubleProperty(1.0)
-        val factory = { AssociationAdorner(100.0, 50.0, DoublePoint(10.0, 10.0), scale) }
+        val scale = 1.0
+        val factory = { AssociationAdorner(100.0, 50.0, { DoublePoint(10.0, 10.0) }, { scale }) }
         testMemoryLeak(factory) { adorner ->
-            adorner.dispose()
+            adorner.destroy()
         }
     }
 }