add neccesary mocks and wip test for ready status (#9)

extension/advanzia-assistant.spec.ts

@@ -1,25 +1,53 @@
-import { Script } from './advanzia-assistant';
+import FetchMock from 'jest-fetch-mock';
+import * as ChromeMock from 'jest-chrome';
+import { ContentScript, Script } from './advanzia-assistant';
 
 describe('Content Script', () => {
-    it('should not do anything if not on transactions page', async () => {
-        const eventsRaised: { [key: string]: boolean } = {
-            noop: false,
-            ready: false,
-            done: false,
-            error: false,
-        };
+    const eventsRaised: { [key: string]: boolean } = {
+        noop: false,
+        ready: false,
+        done: false,
+        error: false,
+    };
 
-        const setRaised = (eventName: string) => () => { eventsRaised[eventName] = true };
+    const setRaised = (eventName: string) => () => { eventsRaised[eventName] = true };
+    const resetRaised = (eventName: string) => { eventsRaised[eventName] = false };
+    const resetAllRaised = () => Object.keys(eventsRaised).forEach(resetRaised);
 
-        await new Script()
+    let script: ContentScript;
+
+    beforeAll(FetchMock.enableMocks);
+    beforeAll(() => Object.assign(global, ChromeMock));
+
+    beforeEach(jest.restoreAllMocks);
+    beforeEach(resetAllRaised);
+    beforeEach(() => {
+        script = new Script()
             .on('noop', setRaised('noop'))
             .on('ready', () => setRaised('ready'))
             .on('done', () => setRaised('done'))
-            .execute();
+    })
+
+    it('should not do anything if executed outside of transactions page', async () => {
+        await script.execute();
+
 
         expect(eventsRaised.noop).toBe(true);
         expect(eventsRaised.ready).toBe(false);
         expect(eventsRaised.done).toBe(false);
         expect(eventsRaised.error).toBe(false);
     });
+
+    it('should indicate ready status if executed on transaction page', async () => {
+        jest.spyOn(window, "location", "get").mockReturnValue({
+            ...window.location,
+            ...{ pathname: '/retail-app-de' },
+        });
+
+        await script.execute();
+        expect(eventsRaised.noop).toBe(false);
+        expect(eventsRaised.ready).toBe(true);
+        expect(eventsRaised.done).toBe(false);
+        expect(eventsRaised.error).toBe(false);
+    });
 });

extension/package.json

@@ -16,6 +16,8 @@
     "@types/chrome": "^0.0.164",
     "@types/jest": "^27.0.3",
     "jest": "^27.3.1",
+    "jest-chrome": "^0.7.2",
+    "jest-fetch-mock": "^3.0.3",
     "ts-jest": "^27.0.7",
     "ts-loader": "^9.2.6",
     "typescript": "^4.5.2",
@@ -26,4 +28,4 @@
     "build": "webpack",
     "test": "jest"
   }
-}
+}