diff --git a/tests/javascript/file3dm.LayerTable.test.js b/tests/javascript/file3dm.LayerTable.test.js
index 7eea6309..c14100cd 100644
--- a/tests/javascript/file3dm.LayerTable.test.js
+++ b/tests/javascript/file3dm.LayerTable.test.js
@@ -37,4 +37,34 @@ test('CreateFileWithLayers', async () => {
 
   expect(qtyLayers === 2 && qtyLayers2 === 2).toBe(true)
 
+})
+
+test('DeleteLayer', async () => {
+
+  const file3dm = new rhino.File3dm()
+  file3dm.applicationName = 'rhino3dm.js'
+  file3dm.applicationDetails = 'rhino3dm-tests-layerTable-deleteLayer'
+  file3dm.applicationUrl = 'https://rhino3d.com'
+
+  //create layers
+  const layer1 = new rhino.Layer()
+  layer1.Name = 'layer1'
+  layer1.Color = { r: 255, g: 0, b: 255, a: 255 }
+
+  const layer2 = new rhino.Layer()
+  layer2.Name = 'layer2'
+
+  const index1 = file3dm.layers().add(layer1)
+  const index2 = file3dm.layers().add(layer2)
+
+  const qtyLayers = file3dm.layers().count
+
+  const id1 = file3dm.layers().findIndex(index1).id
+
+  file3dm.layers().delete(id1)
+
+  const qtyLayers2 = file3dm.layers().count
+
+  expect(qtyLayers === 2 && qtyLayers2 === 1).toBe(true)
+
 })
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diff --git a/tests/javascript/file3dm.ObjectTable.test.js b/tests/javascript/file3dm.ObjectTable.test.js
index 2c340c5a..ae1cb657 100644
--- a/tests/javascript/file3dm.ObjectTable.test.js
+++ b/tests/javascript/file3dm.ObjectTable.test.js
@@ -32,4 +32,27 @@ test('AddPolyline', async () => {
 
   expect((objqty === 2) && isCurve1 && isCurve2 && (id1 !== id2) ).toBe(true)
 
-} )
\ No newline at end of file
+} )
+
+test('DeleteObject', async () => {
+
+  const file3dm = new rhino.File3dm()
+  file3dm.applicationName = 'rhino3dm.js'
+  file3dm.applicationDetails = 'rhino3dm-tests-objectTable-deleteObject'
+  file3dm.applicationUrl = 'https://rhino3d.com'
+
+  const circle1 = new file3dm.Circle(5);
+  const circle2 = new file3dm.Circle(50);
+
+  const id1 = file3dm.objects().addCircle(circle1)
+  const id2 = file3dm.objects().addCircle(circle2)
+
+  const qtyObjects = file3dm.objects().count
+
+  file3dm.objects().delete(id1)
+
+  const qtyObjects2 = file3dm.objects().count
+
+  expect(qtyObjects === 2 && qtyObjects2 === 1).toBe(true)
+
+})
\ No newline at end of file