More unit tests

lib/base.spec.ts

@@ -0,0 +1,20 @@
+import BaseClass from './base';
+
+describe('BaseClass', () => {
+  it('should be able to create BaseClass with options', () => {
+    const instance = new BaseClass({
+      baselineFolder: './subfolder//../baseline',
+      screenshotPath: './../my_folder//screenshots'
+    });
+    expect(instance.folders.actualFolder).toBe('../my_folder/screenshots/actual');
+    expect(instance.folders.baselineFolder).toBe('baseline');
+    expect(instance.folders.diffFolder).toBe('../my_folder/screenshots/diff');
+  });
+
+  it('should be able to create BaseClass with default options', () => {
+    const instance = new BaseClass({});
+    expect(instance.folders.actualFolder).toBe('.tmp/actual');
+    expect(instance.folders.baselineFolder).toBe('wic/baseline/');
+    expect(instance.folders.diffFolder).toBe('.tmp/diff');
+  });
+});

lib/clientSideScripts/scrollToPosition.spec.ts

@@ -1,9 +1,9 @@
 import scrollToPosition from './scrollToPosition';
 
-xdescribe('scrollToPosition', () => {
+describe('scrollToPosition', () => {
   it('should check if the scrollTo function has been called', () => {
+    window.scrollTo = jest.fn();
     scrollToPosition(150);
-    // I can't verify the call of the scrollToPosition with Jest, so there is no verification here, sorry :(
-    // If you know a way, please add it here ;-)
+    expect(window.scrollTo).toBeCalledWith(0, 150);
   });
 });