test: cover getMany and create for partners entity

src/partners/partners.controller.spec.ts

@@ -1,29 +1,76 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { PartnersController } from './partners.controller';
 import { PartnersService } from './partners.service';
-import { PrismaService } from '../prisma/prisma.service';
+import { ServerResponse } from '../utils';
 
 describe('PartnersController', () => {
   let controller: PartnersController;
+  let service: PartnersService;
 
   beforeEach(async () => {
     const module: TestingModule = await Test.createTestingModule({
       controllers: [PartnersController],
       providers: [PartnersService],
     })
-      .useMocker((token) => {
-        if (token === PrismaService) {
-          return {
-            supplyCategory: { findMany: jest.fn().mockResolvedValue(0) },
-          };
-        }
+      .overrideProvider(PartnersService)
+      .useValue({
+        index: jest.fn().mockResolvedValue([
+          {
+            id: 1,
+            name: 'Partner 1',
+            link: 'https://partner1.com',
+          },
+        ]),
+        store: jest.fn().mockResolvedValue({}),
       })
       .compile();
 
     controller = module.get<PartnersController>(PartnersController);
+    service = module.get<PartnersService>(PartnersService);
   });
 
-  it('should be defined', () => {
-    expect(controller).toBeDefined();
+  it('should return all partners', async () => {
+    const expectedResponse = new ServerResponse(
+      200,
+      'Successfully get partners',
+      [
+        {
+          id: 1,
+          name: 'Partner 1',
+          link: 'https://partner1.com',
+        },
+      ],
+    );
+    const result = await controller.index();
+    expect(result).toEqual(expectedResponse);
+  });
+
+  it('should create a partner', async () => {
+    const expectedResponse = new ServerResponse(
+      201,
+      'Successfully created partner',
+    );
+    const result = await controller.store({
+      name: 'Partner 1',
+      link: 'https://partner1.com',
+    });
+    expect(result).toEqual(expectedResponse);
+  });
+
+  it('should throw an error when store fails', async () => {
+    const errorMessage = 'Failed to create partner';
+    jest.spyOn(service, 'store').mockRejectedValue(new Error(errorMessage));
+    await expect(
+      controller.store({
+        name: 'Partner 1',
+        link: 'https://partner1.com',
+      }),
+    ).rejects.toThrow();
+  });
+
+  it('should throw an error when index fails', async () => {
+    const errorMessage = 'Failed to get partners';
+    jest.spyOn(service, 'index').mockRejectedValue(new Error(errorMessage));
+    await expect(controller.index()).rejects.toThrow();
   });
 });

src/partners/partners.service.spec.ts

@@ -1,28 +1,49 @@
 import { Test, TestingModule } from '@nestjs/testing';
-
 import { PartnersService } from './partners.service';
 import { PrismaService } from '../prisma/prisma.service';
 
+jest.mock('../prisma/prisma.service');
+
 describe('PartnersService', () => {
   let service: PartnersService;
+  let prismaService: PrismaService;
 
   beforeEach(async () => {
     const module: TestingModule = await Test.createTestingModule({
-      providers: [PartnersService],
+      providers: [
+        PartnersService,
+        { provide: PrismaService, useClass: PrismaService },
+      ],
     })
-      .useMocker((token) => {
-        if (token === PrismaService) {
-          return {
-            supplyCategory: { findMany: jest.fn().mockResolvedValue(0) },
-          };
-        }
+      .overrideProvider(PrismaService)
+      .useValue({
+        partners: {
+          findMany: jest.fn().mockResolvedValue([]),
+          create: jest.fn().mockResolvedValue({}),
+        },
       })
       .compile();
 
     service = module.get<PartnersService>(PartnersService);
+    prismaService = module.get<PrismaService>(PrismaService);
   });
+  it('should return all partners', async () => {
+    const partners = await service.index();
+    expect(partners).toEqual([]);
+  });
+
+  it('should create a partner', async () => {
+    await service.store({
+      name: 'Partner 1',
+      link: 'https://partner1.com',
+    });
 
-  it('should be defined', () => {
-    expect(service).toBeDefined();
+    expect(prismaService.partners.create).toHaveBeenCalledWith({
+      data: {
+        name: 'Partner 1',
+        link: 'https://partner1.com',
+        createdAt: new Date().toISOString(),
+      },
+    });
   });
 });