diff --git a/test/ProvenanceSlide.test.ts b/test/ProvenanceSlide.test.ts
index 490a411..b51975d 100644
--- a/test/ProvenanceSlide.test.ts
+++ b/test/ProvenanceSlide.test.ts
@@ -1,4 +1,5 @@
 import { ProvenanceSlide } from '../src/ProvenanceSlide';
+import { SlideAnnotation } from '../src/SlideAnnotation';
 
 const testNode1 = {
   id: 'sdkljbgfoasdbfdsbvckjurebvlauwyb',
@@ -31,26 +32,26 @@ describe('single slide', () => {
 
     expect(slide.name).toBe('test1');
     expect(slide.duration).toBe(1);
-    expect(slide.delay).toBe(0);
+    expect(slide.transitionTime).toBe(0);
     expect(slide.annotations).toEqual([]);
     expect(slide.node).toEqual(null);
   });
 
   it('should make a slide with annotations and node set', () => {
-    const slide = new ProvenanceSlide('test2', 1, 0, ['haha'], testNode1);
+    const slide = new ProvenanceSlide('test2', 1, 0, [new SlideAnnotation('haha')], testNode1);
     expect(slide).toBeInstanceOf(ProvenanceSlide);
 
     expect(slide.name).toBe('test2');
     expect(slide.duration).toBe(1);
-    expect(slide.delay).toBe(0);
-    expect(slide.annotations).toEqual(['haha']);
+    expect(slide.transitionTime).toBe(0);
+    expect(slide.annotations[0].data).toEqual('haha');
     expect(slide.node).toEqual(testNode1);
   });
 
   describe('setters for private fields', () => {
     let slide: ProvenanceSlide;
     beforeEach(() => {
-      slide = new ProvenanceSlide('test1', 1, 0, ['haha'], testNode1);
+      slide = new ProvenanceSlide('test1', 1, 0, [new SlideAnnotation('haha')], testNode1);
     });
 
     it('has a name setter', () => {
@@ -66,9 +67,9 @@ describe('single slide', () => {
     });
 
     it('has a delay setter', () => {
-      expect(slide.delay).toBe(0);
-      slide.delay = 12;
-      expect(slide.delay).toBe(12);
+      expect(slide.transitionTime).toBe(0);
+      slide.transitionTime = 12;
+      expect(slide.transitionTime).toBe(12);
     });
 
     it('has a node setter', () => {
@@ -81,29 +82,30 @@ describe('single slide', () => {
   describe('adding and removing annotations', () => {
     let slide: ProvenanceSlide;
     beforeEach(() => {
-      slide = new ProvenanceSlide('test1', 1, 0, ['haha'], testNode1);
+      slide = new ProvenanceSlide('test1', 1, 0, [new SlideAnnotation('haha')], testNode1);
     });
 
     describe('add annotations', () => {
       it('can add an annotation', () => {
-        expect(slide.annotations[0]).toEqual('haha');
-        slide.addAnnotation('shiny!');
-        expect(slide.annotations[0]).toEqual('haha');
-        expect(slide.annotations[1]).toEqual('shiny!');
+        expect(slide.annotations[0].data).toEqual('haha');
+        slide.addAnnotation(new SlideAnnotation('shiny!'));
+        expect(slide.annotations[0].data).toEqual('haha');
+        expect(slide.annotations[1].data).toEqual('shiny!');
       });
     });
 
     describe('can remove an annotation', () => {
       beforeEach(() => {
-        slide.addAnnotation('shiny!');
-        slide.addAnnotation('awesome!');
-        slide.addAnnotation('insight!');
+        slide.addAnnotation(new SlideAnnotation('shiny!'));
+        slide.addAnnotation(new SlideAnnotation('awesome!'));
+        slide.addAnnotation(new SlideAnnotation('insight!'));
       });
 
       it('should remove the slide', () => {
-        expect(slide.annotations).toEqual(['haha', 'shiny!', 'awesome!', 'insight!']);
-        slide.removeAnnotation('awesome!');
-        expect(slide.annotations).toEqual(['haha', 'shiny!', 'insight!']);
+        expect(slide.annotations[0].data).toEqual('haha');
+        expect(slide.annotations[3].data).toEqual('insight!');
+        slide.removeAnnotation(slide.annotations[1]);
+        expect(slide.annotations[2].data).toEqual('insight!');
       });
     });
   });
diff --git a/test/ProvenanceSlideDeck.test.ts b/test/ProvenanceSlideDeck.test.ts
index c772efc..925d016 100644
--- a/test/ProvenanceSlideDeck.test.ts
+++ b/test/ProvenanceSlideDeck.test.ts
@@ -60,6 +60,7 @@ describe('ProvenanceTreeSlidedeck', () => {
     tracker = new ProvenanceTracker(registry, graph, username);
     traverser = new ProvenanceGraphTraverser(registry, graph);
     slideDeck = new ProvenanceSlidedeck({ name: 'calculator', version: '1.0.0' }, traverser);
+    graph.addNode(testNode1);
   });
 
   it('should have a graph', () => {
@@ -218,7 +219,7 @@ describe('ProvenanceTreeSlidedeck', () => {
         const spiedfunc = jest.spyOn(traverser, 'toStateNode');
         slideDeck.selectedSlide = slideWithNode;
         expect(slideWithNode.node).toBeDefined();
-        expect(spiedfunc).toHaveBeenCalledWith(slideWithNode.node.id);
+        expect(spiedfunc).toHaveBeenCalledWith(slideWithNode.node.id, 0);
       });
 
       it('will dispatch on slide selection', () => {
@@ -293,11 +294,11 @@ describe('ProvenanceTreeSlidedeck', () => {
 
   describe('Time based indexing', () => {
     beforeEach(() => {
-      slide1.delay = 0;
+      slide1.transitionTime = 0;
       slide1.duration = 2;
-      slide2.delay = 10;
+      slide2.transitionTime = 10;
       slide2.duration = 4;
-      slide3.delay = 20;
+      slide3.transitionTime = 20;
       slide3.duration = 6;
 
       slideDeck.addSlide(slide1);