...

reviews/tests/messaging.test.js

@@ -0,0 +1,69 @@
+const _model = __dirname+'/..'
+const cds = require ('@sap/cds')
+
+describe('messaging tests', ()=>{
+
+    it ('should bootstrap sqlite in-memory db', async()=>{
+        const db = await cds.deploy (_model) .to ('sqlite::memory:')
+        expect (db.model) .toBeDefined()
+    })
+
+    let srv
+    it ('should serve reviews services', async()=>{
+        srv = await cds.serve('ReviewsService') .from (_model)
+        expect (srv.name) .toMatch ('ReviewsService')
+    })
+
+    let N=0, received=[], M=0
+    it ('should add messaging event handlers', ()=>{
+        srv.on('reviewed', (msg)=> received.push(msg))
+    })
+
+    it ('should add more messaging event handlers', ()=>{
+        srv.on('reviewed', ()=> ++M)
+    })
+
+    it ('should add review', async ()=>{
+        const review = {
+            ID: 111 + (++N), // FIXME: why does the generic handler not fill this in automatically ?!? --> it does so when the request comes in via Postman / OData
+            subject: "201", title: "Captivating", rating: N
+        }
+        const response = await srv.create ('Reviews') .entries (review)
+        expect (response) .toMatchObject (review)
+    },100)
+
+    it ('should add more reviews', ()=> Promise.all ([
+        // REVISIT: mass operation should trigger one message per entry
+        // srv.create('Reviews').entries(
+        //     { ID: 111 + (++N),  subject: "201", title: "Captivating", rating: N },
+        //     { ID: 111 + (++N),  subject: "201", title: "Captivating", rating: N },
+        //     { ID: 111 + (++N),  subject: "201", title: "Captivating", rating: N },
+        //     { ID: 111 + (++N),  subject: "201", title: "Captivating", rating: N },
+        // ),
+        srv.create ('Reviews') .entries (
+            { ID: 111 + (++N),  subject: "201", title: "Captivating", rating: N }
+        ),
+        srv.create ('Reviews') .entries (
+            { ID: 111 + (++N),  subject: "201", title: "Captivating", rating: N }
+        ),
+        srv.create ('Reviews') .entries (
+            { ID: 111 + (++N),  subject: "201", title: "Captivating", rating: N }
+        ),
+        srv.create ('Reviews') .entries (
+            { ID: 111 + (++N),  subject: "201", title: "Captivating", rating: N }
+        ),
+    ]) ,100)
+
+    it ('should have received all messages', async()=> {
+        await new Promise((done)=>setImmediate(done))
+        expect(M).toBe(N)
+        expect(received.length).toBe(N)
+        expect(received.map(m=>m.data)).toEqual([
+            { subject: '201', rating: 1 },
+            { subject: '201', rating: 1.5 },
+            { subject: '201', rating: 2 },
+            { subject: '201', rating: 2.5 },
+            { subject: '201', rating: 3 },
+        ])
+    })
+})