add tests. add to many associations

media-store/test/media-service.test.js

@@ -0,0 +1,67 @@
+const cds = require("../../test/cds");
+const { GET, expect } = cds.test("media-store").in(__dirname, "../../");
+
+const {
+  FIRST_EMPLOYEE,
+  SECOND_EMPLOYEE_WITH_EXPANDED_FIELDS,
+  ALL_ALBUMS_WITH_TRACKS_BY_ARTIST,
+  CUSTOMER_WITH_THEIR_SUPPORT_REP,
+  EIGHTH_ALBUM_TRACKS_COUNT,
+} = require("./data/media-service.mock");
+
+describe("Media service", () => {
+  it("should bootstrap the services successfully", () => {
+    const { MediaService, db } = cds.services;
+    const { Employees } = MediaService.entities;
+
+    expect(MediaService).not.to.be.undefined;
+    expect(db).not.to.be.undefined;
+    expect(Employees).not.to.be.undefined;
+  });
+
+  describe("Employees", () => {
+    it("should return employee (ID=1)", async () => {
+      const { data } = await GET("/media/Employees(1)");
+      expect(data).to.eql(FIRST_EMPLOYEE);
+    });
+
+    it("should return employee (ID=2) with subordinates and whom he reports to", async () => {
+      const { data } = await GET(
+        `/media/Employees(2)?$expand=subordinates,reportsTo`
+      );
+      expect(data).to.eql(SECOND_EMPLOYEE_WITH_EXPANDED_FIELDS);
+    });
+  });
+
+  describe("Albums", () => {
+    it("should return all albums with tracks by artist", async () => {
+      const { data } = await GET(
+        `/media/Albums?$filter=artist_ID eq 1&$expand=tracks`
+      );
+      expect(data).to.eql(ALL_ALBUMS_WITH_TRACKS_BY_ARTIST);
+    });
+  });
+
+  describe("Customers", () => {
+    it("should return customer with their invoices", async () => {
+      const { data } = await GET(`/media/Customers(1)?$expand=supportRep`);
+      expect(data).to.eql(CUSTOMER_WITH_THEIR_SUPPORT_REP);
+    });
+  });
+
+  describe("Playlists", () => {
+    it("should return playlist with their tracks", async () => {
+      const { data } = await GET(`/media/Customers(1)?$expand=supportRep`);
+      expect(data).to.eql(CUSTOMER_WITH_THEIR_SUPPORT_REP);
+    });
+  });
+
+  describe("Tracks", () => {
+    it("should return the number of tracks by album", async () => {
+      const { data } = await GET(
+        `/media/PlaylistTrack/$count?$filter=playlist_ID eq 8`
+      );
+      expect(data).to.eql(EIGHTH_ALBUM_TRACKS_COUNT);
+    });
+  });
+});