ts-mockito and tests LayersWidget

package.json

@@ -66,6 +66,7 @@
     "node-sass": "^4.5.3",
     "popper.js": "^1.12.3",
     "protractor": "~5.3.0",
+    "ts-mockito": "^2.3.0",
     "ts-node": "~5.0.0",
     "tslint": "~5.9.1",
     "typescript": ">=2.4.0 <2.6.0"

src/app/cartography/shared/widgets/layers.spec.ts

@@ -1,19 +1,53 @@
+import { instance, mock, when } from "ts-mockito";
+
 import { TestSVGCanvas } from "../../testing";
+import { LayersWidget } from "./layers";
+import { Layer } from "../models/layer";
+import { LinksWidget } from "./links";
+import { NodesWidget } from "./nodes";
+import { DrawingsWidget } from "./drawings";
+import { GraphLayout } from "./graph";
 
 
 describe('LayersWidget', () => {
   let svg: TestSVGCanvas;
+  let widget: LayersWidget;
+  let mockedGraphLayout: GraphLayout;
+  let mockedLinksWidget: LinksWidget;
+  let mockedNodesWidget: NodesWidget;
+  let mockedDrawingsWidget: DrawingsWidget;
 
   beforeEach(() => {
     svg = new TestSVGCanvas();
+    widget = new LayersWidget();
+    mockedGraphLayout = mock(GraphLayout);
+    mockedLinksWidget = mock(LinksWidget);
+    mockedNodesWidget = mock(NodesWidget);
+    mockedDrawingsWidget = mock(DrawingsWidget);
+    when(mockedGraphLayout.getLinksWidget()).thenReturn(instance(mockedLinksWidget));
+    when(mockedGraphLayout.getNodesWidget()).thenReturn(instance(mockedNodesWidget));
+    when(mockedGraphLayout.getDrawingsWidget()).thenReturn(instance(mockedDrawingsWidget));
+
+    widget.graphLayout = instance(mockedGraphLayout);
   });
 
   afterEach(() => {
     svg.destroy();
   });
 
-  it('canvas should transformed', () => {
-    // expect(canvas.attr('transform')).toEqual('translate(100, 100) scale(1)');
+  it('should draw layers', () => {
+    const layer_1 = new Layer();
+    layer_1.index = 1;
+    const layer_2 = new Layer();
+    layer_2.index = 2;
+    const layers = [layer_1, layer_2];
+
+    widget.draw(svg.canvas, layers);
+
+    const drew = svg.canvas.selectAll<SVGGElement, Layer>('g.layer');
+    expect(drew.size()).toEqual(2);
+    expect(drew.nodes()[0].getAttribute('data-index')).toEqual('1');
+    expect(drew.nodes()[1].getAttribute('data-index')).toEqual('2');
   });
 
 });

yarn.lock

@@ -8565,6 +8565,12 @@ truncate-utf8-bytes@^1.0.0:
   dependencies:
     utf8-byte-length "^1.0.1"
 
+ts-mockito@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/ts-mockito/-/ts-mockito-2.3.0.tgz#c1836f04ec037cad82cfd7b3b66d52fc75adfcc7"
+  dependencies:
+    lodash "^4.17.5"
+
 ts-node@~5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-5.0.0.tgz#9aa573889ad7949411f972981c209e064705e36f"