From 57f1190625ebedd99685749d307dc54a54b3ee69 Mon Sep 17 00:00:00 2001
From: gganebnyi <gganebnyi@fusionworks.md>
Date: Sat, 18 Feb 2023 23:38:43 +0200
Subject: [PATCH 1/4] added automatic updates for createdAt and updateAt fields

---
 .../common/schema/auditable-entity.schema.ts   | 18 ++++++++++++++++++
 nestjs-mongoose/src/posts/post.schema.ts       | 10 ++++------
 nestjs-mongoose/src/posts/posts.service.ts     |  8 +++-----
 3 files changed, 25 insertions(+), 11 deletions(-)
 create mode 100644 nestjs-mongoose/src/common/schema/auditable-entity.schema.ts

diff --git a/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts b/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts
new file mode 100644
index 0000000..8ed2580
--- /dev/null
+++ b/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts
@@ -0,0 +1,18 @@
+import { Prop } from "@nestjs/mongoose";
+import { now } from "mongoose";
+
+export class AuditableEntity {
+
+  @Prop({ default: now() })
+  createdAt: Date;
+
+  @Prop()
+  createdBy: String;
+
+  @Prop({ default: now() })
+  updatedAt: Date;
+
+  @Prop()
+  updatedBy: String;
+
+}
\ No newline at end of file
diff --git a/nestjs-mongoose/src/posts/post.schema.ts b/nestjs-mongoose/src/posts/post.schema.ts
index cfad338..88f0c99 100644
--- a/nestjs-mongoose/src/posts/post.schema.ts
+++ b/nestjs-mongoose/src/posts/post.schema.ts
@@ -1,18 +1,16 @@
 import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
-import { now, Document } from 'mongoose';
+import { Document } from 'mongoose';
+import { AuditableEntity } from 'src/common/schema/auditable-entity.schema';
 
 export type PostDocument = Post & Document;
 
-@Schema()
-export class Post {
+@Schema({ timestamps: true })
+export class Post extends AuditableEntity {
   @Prop()
   title: string;
 
   @Prop()
   content: string;
-
-  @Prop({ default: now() })
-  createdAt: Date;
 }
 
 export const PostSchema = SchemaFactory.createForClass(Post);
diff --git a/nestjs-mongoose/src/posts/posts.service.ts b/nestjs-mongoose/src/posts/posts.service.ts
index e02eeab..a9bf81e 100644
--- a/nestjs-mongoose/src/posts/posts.service.ts
+++ b/nestjs-mongoose/src/posts/posts.service.ts
@@ -15,7 +15,7 @@ class PostsService {
   }
 
   async findOne(id: string) {
-    const post = await this.postModel.findOne({ id });
+    const post = await this.postModel.findById(id);
     if (!post) {
       throw new NotFoundException();
     }
@@ -39,10 +39,8 @@ class PostsService {
 
   async partialUpdate(id: string, postData: CreatePostsDto) {
     const post = await this.postModel
-      .findByIdAndUpdate(id, {
-        $set: postData,
-      })
-      .setOptions({ overwrite: true, new: true });
+      .findByIdAndUpdate(id, postData)
+      .setOptions({ new: true });
     if (!post) {
       throw new NotFoundException();
     }

From 5eeec26d87ac18fbc4e13e3af95ef30382ed5cf6 Mon Sep 17 00:00:00 2001
From: gganebnyi <gganebnyi@fusionworks.md>
Date: Sun, 19 Feb 2023 19:48:38 +0200
Subject: [PATCH 2/4] tests implementation

---
 nestjs-mongoose/package.json                  |   3 +-
 nestjs-mongoose/src/app.controller.spec.ts    |   2 +-
 nestjs-mongoose/src/app.controller.ts         |   9 +-
 nestjs-mongoose/src/app.service.ts            |   6 +-
 .../common/schema/auditable-entity.schema.ts  |   8 +-
 nestjs-mongoose/src/posts/post.schema.ts      |   2 +-
 .../src/posts/posts.service.spec.ts           |  93 +++++++++++
 .../mongo/root-mongoose-test.module.ts        |  19 +++
 nestjs-mongoose/yarn.lock                     | 157 +++++++++++++++++-
 9 files changed, 282 insertions(+), 17 deletions(-)
 create mode 100644 nestjs-mongoose/src/posts/posts.service.spec.ts
 create mode 100644 nestjs-mongoose/src/test-utils/mongo/root-mongoose-test.module.ts

diff --git a/nestjs-mongoose/package.json b/nestjs-mongoose/package.json
index 12de337..30a8b13 100644
--- a/nestjs-mongoose/package.json
+++ b/nestjs-mongoose/package.json
@@ -32,6 +32,7 @@
     "class-transformer": "^0.5.1",
     "class-validator": "^0.13.2",
     "joi": "^17.7.0",
+    "mongodb-memory-server": "^8.11.4",
     "mongoose": "^6.7.2",
     "nats": "^2.6.1",
     "reflect-metadata": "^0.1.13",
@@ -79,4 +80,4 @@
     "coverageDirectory": "../coverage",
     "testEnvironment": "node"
   }
-}
\ No newline at end of file
+}
diff --git a/nestjs-mongoose/src/app.controller.spec.ts b/nestjs-mongoose/src/app.controller.spec.ts
index 9209695..d22f389 100644
--- a/nestjs-mongoose/src/app.controller.spec.ts
+++ b/nestjs-mongoose/src/app.controller.spec.ts
@@ -16,7 +16,7 @@ describe('AppController', () => {
 
   describe('root', () => {
     it('should return "Hello World!"', () => {
-      return 'Hello World!';
+      expect(appController.getHello()).toBe('Hello World!');
     });
   });
 });
diff --git a/nestjs-mongoose/src/app.controller.ts b/nestjs-mongoose/src/app.controller.ts
index c73d6d8..61c9c36 100644
--- a/nestjs-mongoose/src/app.controller.ts
+++ b/nestjs-mongoose/src/app.controller.ts
@@ -1,7 +1,12 @@
-import { Controller } from '@nestjs/common';
+import { Controller, Get } from '@nestjs/common';
 import { AppService } from './app.service';
 
 @Controller()
 export class AppController {
-  constructor(private readonly appService: AppService) {}
+  constructor(private readonly appService: AppService) { }
+
+  @Get()
+  getHello(): string {
+    return this.appService.getHello();
+  }
 }
diff --git a/nestjs-mongoose/src/app.service.ts b/nestjs-mongoose/src/app.service.ts
index 7263d33..927d7cc 100644
--- a/nestjs-mongoose/src/app.service.ts
+++ b/nestjs-mongoose/src/app.service.ts
@@ -1,4 +1,8 @@
 import { Injectable } from '@nestjs/common';
 
 @Injectable()
-export class AppService {}
+export class AppService {
+  getHello(): string {
+    return 'Hello World!';
+  }
+}
diff --git a/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts b/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts
index 8ed2580..e4ffebf 100644
--- a/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts
+++ b/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts
@@ -4,15 +4,15 @@ import { now } from "mongoose";
 export class AuditableEntity {
 
   @Prop({ default: now() })
-  createdAt: Date;
+  createdAt?: Date;
 
   @Prop()
-  createdBy: String;
+  createdBy?: String;
 
   @Prop({ default: now() })
-  updatedAt: Date;
+  updatedAt?: Date;
 
   @Prop()
-  updatedBy: String;
+  updatedBy?: String;
 
 }
\ No newline at end of file
diff --git a/nestjs-mongoose/src/posts/post.schema.ts b/nestjs-mongoose/src/posts/post.schema.ts
index 88f0c99..4230936 100644
--- a/nestjs-mongoose/src/posts/post.schema.ts
+++ b/nestjs-mongoose/src/posts/post.schema.ts
@@ -1,6 +1,6 @@
 import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
 import { Document } from 'mongoose';
-import { AuditableEntity } from 'src/common/schema/auditable-entity.schema';
+import { AuditableEntity } from '../common/schema/auditable-entity.schema';
 
 export type PostDocument = Post & Document;
 
diff --git a/nestjs-mongoose/src/posts/posts.service.spec.ts b/nestjs-mongoose/src/posts/posts.service.spec.ts
new file mode 100644
index 0000000..9356d3f
--- /dev/null
+++ b/nestjs-mongoose/src/posts/posts.service.spec.ts
@@ -0,0 +1,93 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { getModelToken, MongooseModule } from '@nestjs/mongoose';
+import { Model } from 'mongoose';
+import { NotFoundException } from '@nestjs/common';
+import CreatePostsDto from './dto/create-posts.dto';
+import { Post, PostDocument, postForFeature } from './post.schema';
+import PostsService from './posts.service';
+import { PaginationParamsDto } from '../common/pagination/pagination.dto';
+import * as mongoose from 'mongoose';
+import { MongoMemoryServer } from 'mongodb-memory-server';
+import { DataWithPaginationDto } from '../common/pagination/pagination.dto';
+import { rootMongooseTestModule } from '../test-utils/mongo/root-mongoose-test.module';
+
+describe('PostsService', () => {
+  let service: PostsService;
+  let model: Model<PostDocument>;
+  let mongoServer: MongoMemoryServer;
+
+  beforeAll(async () => {
+    mongoServer = await MongoMemoryServer.create();
+    const mongoUri = await mongoServer.getUri();
+    await mongoose.connect(mongoUri);
+  });
+
+  afterAll(async () => {
+    await mongoose.disconnect();
+    await mongoServer.stop();
+  });
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [
+        rootMongooseTestModule(),
+        MongooseModule.forFeature([postForFeature]),
+      ],
+      providers: [PostsService],
+    }).compile();
+
+    service = module.get<PostsService>(PostsService);
+    model = module.get<Model<PostDocument>>(getModelToken(Post.name));
+  });
+
+  describe('findAll', () => {
+    it('should return paginated posts', async () => {
+      const posts: Partial<PostDocument>[] = [];
+      for (let i = 0; i < 20; i++) {
+        const postData: CreatePostsDto = { title: `Post ${i}`, content: `Content ${i}` };
+        const post = await model.create(postData);
+        posts.push({ id: post._id, ...postData });
+      }
+
+      const paginationParams: PaginationParamsDto = {
+        limit: 10,
+        offset: 0,
+      };
+
+      const expectedData = posts.slice(0, 10);
+      const expectedMeta = {
+        total: 20,
+        limit: paginationParams.limit,
+        offset: paginationParams.offset,
+      };
+      const expectedResult: DataWithPaginationDto<Partial<Post>> = {
+        data: expectedData,
+        meta: expectedMeta,
+      };
+
+      const result = await service.findAll(paginationParams);
+      expect(result).toEqual(expectedResult);
+    });
+  });
+
+  describe('findOne', () => {
+    it('should return the specified post', async () => {
+      const post = await model.create({ title: 'Post Title', content: 'Post Content' });
+      const result = await service.findOne(post._id);
+      expect(result).toEqual(post);
+    });
+
+    it('should throw a NotFoundException if the post is not found', async () => {
+      await expect(service.findOne('invalid-id')).rejects.toThrow(NotFoundException);
+    });
+  });
+
+  describe('create', () => {
+    it('should create and return the new post', async () => {
+      const postData: CreatePostsDto = { title: 'New Post Title', content: 'New Post Content' };
+      const result = await service.create(postData);
+      expect(result).toMatchObject(postData);
+    });
+  });
+
+})
\ No newline at end of file
diff --git a/nestjs-mongoose/src/test-utils/mongo/root-mongoose-test.module.ts b/nestjs-mongoose/src/test-utils/mongo/root-mongoose-test.module.ts
new file mode 100644
index 0000000..0ce5f4d
--- /dev/null
+++ b/nestjs-mongoose/src/test-utils/mongo/root-mongoose-test.module.ts
@@ -0,0 +1,19 @@
+import { MongooseModule, MongooseModuleOptions } from '@nestjs/mongoose';
+import { MongoMemoryServer } from 'mongodb-memory-server';
+
+let mongod: MongoMemoryServer;
+
+export const rootMongooseTestModule = (options: MongooseModuleOptions = {}) => MongooseModule.forRootAsync({
+  useFactory: async () => {
+    mongod = await MongoMemoryServer.create();
+    const mongoUri = await mongod.getUri();
+    return {
+      uri: mongoUri,
+      ...options,
+    }
+  },
+});
+
+export const closeInMongodConnection = async () => {
+  if (mongod) await mongod.stop();
+}
\ No newline at end of file
diff --git a/nestjs-mongoose/yarn.lock b/nestjs-mongoose/yarn.lock
index 93e0873..7694c64 100644
--- a/nestjs-mongoose/yarn.lock
+++ b/nestjs-mongoose/yarn.lock
@@ -1797,6 +1797,11 @@
   dependencies:
     "@types/superagent" "*"
 
+"@types/tmp@^0.2.3":
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/@types/tmp/-/tmp-0.2.3.tgz#908bfb113419fd6a42273674c00994d40902c165"
+  integrity sha512-dDZH/tXzwjutnuk4UacGgFRwV+JSLaXL1ikvidfJprkb7L9Nx1njcRHHmi3Dsvt7pgqqTEeucQuOrWHPFgzVHA==
+
 "@types/webidl-conversions@*":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/@types/webidl-conversions/-/webidl-conversions-7.0.0.tgz#2b8e60e33906459219aa587e9d1a612ae994cfe7"
@@ -2217,6 +2222,13 @@ asap@^2.0.0:
   resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.6.tgz#e50347611d7e690943208bbdafebcbc2fb866d46"
   integrity sha512-BSHWgDSAiKs50o2Re8ppvp3seVHXSRM44cdSsT9FfNEUUZLOGWVCsiWaRPWM1Znn+mqZ1OfVZ3z3DWEzSp7hRA==
 
+async-mutex@^0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/async-mutex/-/async-mutex-0.3.2.tgz#1485eda5bda1b0ec7c8df1ac2e815757ad1831df"
+  integrity sha512-HuTK7E7MT7jZEh1P9GtRW9+aTWiDWWi9InbZ5hjxrnRa39KS4BW04+xLBhYNS2aXhHUIKZSw3gj4Pn1pj+qGAA==
+  dependencies:
+    tslib "^2.3.1"
+
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
@@ -2306,7 +2318,7 @@ binary-extensions@^2.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-2.2.0.tgz#75f502eeaf9ffde42fc98829645be4ea76bd9e2d"
   integrity sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA==
 
-bl@^4.1.0:
+bl@^4.0.3, bl@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/bl/-/bl-4.1.0.tgz#451535264182bec2fbbc83a62ab98cf11d9f7b3a"
   integrity sha512-1W07cM9gS6DcLperZfFSj+bWLtaPGSOHWhPiGzXmvVJbRLdG82sH/Kn8EtW1VqWVA54AKf2h5k5BbnIbwF3h6w==
@@ -2389,6 +2401,11 @@ bson@^4.7.0:
   dependencies:
     buffer "^5.6.0"
 
+buffer-crc32@~0.2.3:
+  version "0.2.13"
+  resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.13.tgz#0d333e3f00eac50aa1454abd30ef8c2a5d9a7242"
+  integrity sha512-VO9Ht/+p3SN7SKWqcrgEzjGbRSJYTx+Q1pTQC0wrWqHx0vpJraQ6GtHx8tvcg1rlK1byhU5gccxgOgj7B0TDkQ==
+
 buffer-from@^1.0.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.2.tgz#2b146a6fd72e80b4f55d255f35ed59a3a9a41bd5"
@@ -2432,7 +2449,7 @@ camelcase@^5.3.1:
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
   integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
 
-camelcase@^6.2.0:
+camelcase@^6.2.0, camelcase@^6.3.0:
   version "6.3.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-6.3.0.tgz#5685b95eb209ac9c0c177467778c9c84df58ba9a"
   integrity sha512-Gmy6FhYlCY7uOElZUSbxo2UCDH8owEk996gkbrpsgGtrJLM3J7jGxl9Ic7Qwwj4ivOE5AWZWRMecDdF7hqGjFA==
@@ -2611,6 +2628,11 @@ commander@^2.20.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
   integrity sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==
 
+commondir@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
+  integrity sha512-W9pAhw0ja1Edb5GVdIF1mjZw/ASI0AlShXM83UUGe2DVr5TdAPEA1OA8m/g8zWp9x6On7gqufY+FatDbC3MDQg==
+
 component-emitter@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.3.0.tgz#16e4070fba8ae29b679f2215853ee181ab2eabc0"
@@ -2872,7 +2894,7 @@ encodeurl@~1.0.2:
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
   integrity sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w==
 
-end-of-stream@^1.1.0:
+end-of-stream@^1.1.0, end-of-stream@^1.4.1:
   version "1.4.4"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.4.tgz#5ae64a5f45057baf3626ec14da0ca5e4b2431eb0"
   integrity sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==
@@ -3227,6 +3249,13 @@ fb-watchman@^2.0.0:
   dependencies:
     bser "2.1.1"
 
+fd-slicer@~1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/fd-slicer/-/fd-slicer-1.1.0.tgz#25c7c89cb1f9077f8891bbe61d8f390eae256f1e"
+  integrity sha512-cE1qsB/VwyQozZ+q1dGxR8LBYNZeofhEdUNGSMbQD3Gw2lAzX9Zb3uIU6Ebc/Fmyjo9AWWfnn0AUCHqtevs/8g==
+  dependencies:
+    pend "~1.2.0"
+
 figures@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-3.2.0.tgz#625c18bd293c604dc4a8ddb2febf0c88341746af"
@@ -3261,6 +3290,15 @@ finalhandler@1.2.0:
     statuses "2.0.1"
     unpipe "~1.0.0"
 
+find-cache-dir@^3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-3.3.2.tgz#b30c5b6eff0730731aea9bbd9dbecbd80256d64b"
+  integrity sha512-wXZV5emFEjrridIgED11OoUKLxiYjAcqot/NJdAkOhlJ+vGzwhOAfcG5OX1jP+S0PcjEn8bdMJv+g2jwQ3Onig==
+  dependencies:
+    commondir "^1.0.1"
+    make-dir "^3.0.2"
+    pkg-dir "^4.1.0"
+
 find-up@^4.0.0, find-up@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-4.1.0.tgz#97afe7d6cdc0bc5928584b7c8d7b16e8a9aa5d19"
@@ -3350,6 +3388,11 @@ fresh@0.5.2:
   resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.2.tgz#3d8cadd90d976569fa835ab1f8e4b23a105605a7"
   integrity sha512-zJ2mQYM18rEFOudeV4GShTGIQ7RbzA7ozbU9I/XBpm7kqgMywgmylMwXHxZJmkVoYkna9d2pVXVXPdYTP9ej8Q==
 
+fs-constants@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
+  integrity sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==
+
 fs-extra@10.1.0, fs-extra@^10.0.0:
   version "10.1.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-10.1.0.tgz#02873cfbc4084dde127eaa5f9905eef2325d1abf"
@@ -3403,6 +3446,11 @@ get-package-type@^0.1.0:
   resolved "https://registry.yarnpkg.com/get-package-type/-/get-package-type-0.1.0.tgz#8de2d803cff44df3bc6c456e6668b36c3926e11a"
   integrity sha512-pjzuKtY64GYfWizNAJ0fr9VqttZkNiK2iS430LtIHzjBEr6bX8Am2zm4sW4Ro5wjWW5cAlRL1qAMTcXbjNAO2Q==
 
+get-port@^5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/get-port/-/get-port-5.1.1.tgz#0469ed07563479de6efb986baf053dcd7d4e3193"
+  integrity sha512-g/Q1aTSDOxFpchXC4i8ZWvxA1lnPqx/JHqcpIw0/LX9T8x/GBbi6YnlN5nhaKIFkT8oFsscUKgDJYxfwfS6QsQ==
+
 get-stream@^5.0.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-5.2.0.tgz#4966a1795ee5ace65e706c4b7beb71257d6e22d3"
@@ -3539,7 +3587,7 @@ http-proxy-agent@^4.0.1:
     agent-base "6"
     debug "4"
 
-https-proxy-agent@^5.0.0:
+https-proxy-agent@^5.0.0, https-proxy-agent@^5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-5.0.1.tgz#c59ef224a04fe8b754f3db0063a25ea30d0005d6"
   integrity sha512-dFcAjpTQFgoLMzC2VwU+C/CbS7uRL0lWmxDITmqm7C+7F0Odmj6s9l6alZc6AELXhrnggM2CeWSXHGOdX2YtwA==
@@ -4422,7 +4470,7 @@ magic-string@0.25.7:
   dependencies:
     sourcemap-codec "^1.4.4"
 
-make-dir@^3.0.0:
+make-dir@^3.0.0, make-dir@^3.0.2:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-3.1.0.tgz#415e967046b3a7f1d185277d84aa58203726a13f"
   integrity sha512-g3FeP20LNwhALb/6Cz6Dd4F2ngze0jz7tbzrD2wAV+o9FeNHe4rL+yK2md0J/fiSf1sa1ADhXqi5+oVwOM/eGw==
@@ -4441,6 +4489,11 @@ makeerror@1.0.12:
   dependencies:
     tmpl "1.0.5"
 
+md5-file@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/md5-file/-/md5-file-5.0.0.tgz#e519f631feca9c39e7f9ea1780b63c4745012e20"
+  integrity sha512-xbEFXCYVWrSx/gEKS1VPlg84h/4L20znVIulKw6kMfmBUAZNAnF00eczz9ICMl+/hjQGo5KSXRxbL/47X3rmMw==
+
 media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
@@ -4545,6 +4598,36 @@ mongodb-connection-string-url@^2.5.4:
     "@types/whatwg-url" "^8.2.1"
     whatwg-url "^11.0.0"
 
+mongodb-memory-server-core@8.11.4:
+  version "8.11.4"
+  resolved "https://registry.yarnpkg.com/mongodb-memory-server-core/-/mongodb-memory-server-core-8.11.4.tgz#8296f9207c47d2464adc629c22b2bdcf54865ff6"
+  integrity sha512-VWUstcegjwaGTZzaaSLmKuEtxhbNPRM87lq1oFHzYC07pzyxAfjIELcYRKef2O+XlhKlVQ9x2VqpuvTF97h7SA==
+  dependencies:
+    "@types/tmp" "^0.2.3"
+    async-mutex "^0.3.2"
+    camelcase "^6.3.0"
+    debug "^4.3.4"
+    find-cache-dir "^3.3.2"
+    get-port "^5.1.1"
+    https-proxy-agent "^5.0.1"
+    md5-file "^5.0.0"
+    mongodb "^4.13.0"
+    new-find-package-json "^2.0.0"
+    semver "^7.3.8"
+    tar-stream "^2.1.4"
+    tmp "^0.2.1"
+    tslib "^2.4.1"
+    uuid "^9.0.0"
+    yauzl "^2.10.0"
+
+mongodb-memory-server@^8.11.4:
+  version "8.11.4"
+  resolved "https://registry.yarnpkg.com/mongodb-memory-server/-/mongodb-memory-server-8.11.4.tgz#5f4bfb31e39f4c56947d345e6af566ee021e6af3"
+  integrity sha512-DI6iXKsZBpMFAPxj/+35jl2s1LxVTpBc+VUpMzEe9Mvm73XIzIzPdU5Aa3asO7RfRSeR5l5wn0qpVAkvP1BScg==
+  dependencies:
+    mongodb-memory-server-core "8.11.4"
+    tslib "^2.4.1"
+
 mongodb@4.11.0:
   version "4.11.0"
   resolved "https://registry.yarnpkg.com/mongodb/-/mongodb-4.11.0.tgz#d28fdc7509f24d0d274f456529441fa3e570415c"
@@ -4558,6 +4641,18 @@ mongodb@4.11.0:
     "@aws-sdk/credential-providers" "^3.186.0"
     saslprep "^1.0.3"
 
+mongodb@^4.13.0:
+  version "4.14.0"
+  resolved "https://registry.yarnpkg.com/mongodb/-/mongodb-4.14.0.tgz#3a21ca602069b2494b7066a7709056c8cece6bf6"
+  integrity sha512-coGKkWXIBczZPr284tYKFLg+KbGPPLlSbdgfKAb6QqCFt5bo5VFZ50O3FFzsw4rnkqjwT6D8Qcoo9nshYKM7Mg==
+  dependencies:
+    bson "^4.7.0"
+    mongodb-connection-string-url "^2.5.4"
+    socks "^2.7.1"
+  optionalDependencies:
+    "@aws-sdk/credential-providers" "^3.186.0"
+    saslprep "^1.0.3"
+
 mongoose@^6.7.2:
   version "6.7.3"
   resolved "https://registry.yarnpkg.com/mongoose/-/mongoose-6.7.3.tgz#1ec0d8cabcb53ecc171d17baaf4a68356ab470ed"
@@ -4644,6 +4739,13 @@ neo-async@^2.6.2:
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.2.tgz#b4aafb93e3aeb2d8174ca53cf163ab7d7308305f"
   integrity sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==
 
+new-find-package-json@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/new-find-package-json/-/new-find-package-json-2.0.0.tgz#96553638781db35061f351e8ccb4d07126b6407d"
+  integrity sha512-lDcBsjBSMlj3LXH2v/FW3txlh2pYTjmbOXPYJD93HI5EwuLzI11tdHSIpUMmfq/IOsldj4Ps8M8flhm+pCK4Ew==
+  dependencies:
+    debug "^4.3.4"
+
 nkeys.js@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/nkeys.js/-/nkeys.js-1.0.3.tgz#487688a6f4f36f4a2796eee000cc6e54e122cb08"
@@ -4875,6 +4977,11 @@ path-type@^4.0.0:
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-4.0.0.tgz#84ed01c0a7ba380afe09d90a8c180dcd9d03043b"
   integrity sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==
 
+pend@~1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/pend/-/pend-1.2.0.tgz#7a57eb550a6783f9115331fcf4663d5c8e007a50"
+  integrity sha512-F3asv42UuXchdzt+xXqfW1OGlVBe+mxa2mqI0pg5yAHZPvFmY3Y6drSf/GQ1A86WgWEN9Kzh/WrgKa6iGcHXLg==
+
 picocolors@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-1.0.0.tgz#cb5bdc74ff3f51892236eaf79d68bc44564ab81c"
@@ -4890,7 +4997,7 @@ pirates@^4.0.4:
   resolved "https://registry.yarnpkg.com/pirates/-/pirates-4.0.5.tgz#feec352ea5c3268fb23a37c702ab1699f35a5f3b"
   integrity sha512-8V9+HQPupnaXMA23c5hvl69zXvTwTzyAYasnkb0Tts4XvO4CliqONMOnvlq26rkhLC3nWDFBJf73LU1e1VZLaQ==
 
-pkg-dir@^4.2.0:
+pkg-dir@^4.1.0, pkg-dir@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-4.2.0.tgz#f099133df7ede422e81d1d8448270eeb3e4261f3"
   integrity sha512-HRDzbaKjC+AOWVXxAU/x54COGeIv9eb+6CkDSQoNTt4XyWoIJvuPsXizxu/Fr23EiekbtZwmh1IcIG/l/a10GQ==
@@ -5041,7 +5148,7 @@ readable-stream@^2.2.2:
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
-readable-stream@^3.4.0:
+readable-stream@^3.1.1, readable-stream@^3.4.0:
   version "3.6.0"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
   integrity sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==
@@ -5525,6 +5632,17 @@ tapable@^2.1.1, tapable@^2.2.0, tapable@^2.2.1:
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-2.2.1.tgz#1967a73ef4060a82f12ab96af86d52fdb76eeca0"
   integrity sha512-GNzQvQTOIP6RyTfE2Qxb8ZVlNmw0n88vp1szwWRimP02mnTsx3Wtn5qRdqY9w2XduFNUgvOwhNnQsjwCp+kqaQ==
 
+tar-stream@^2.1.4:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-2.2.0.tgz#acad84c284136b060dc3faa64474aa9aebd77287"
+  integrity sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==
+  dependencies:
+    bl "^4.0.3"
+    end-of-stream "^1.4.1"
+    fs-constants "^1.0.0"
+    inherits "^2.0.3"
+    readable-stream "^3.1.1"
+
 terminal-link@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/terminal-link/-/terminal-link-2.1.1.tgz#14a64a27ab3c0df933ea546fba55f2d078edc994"
@@ -5585,6 +5703,13 @@ tmp@^0.0.33:
   dependencies:
     os-tmpdir "~1.0.2"
 
+tmp@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.2.1.tgz#8457fc3037dcf4719c251367a1af6500ee1ccf14"
+  integrity sha512-76SUhtfqR2Ijn+xllcI5P1oyannHNHByD80W1q447gU3mp9G9PSpGdWmjUOHRDPiHYacIk66W7ubDTuPF3BEtQ==
+  dependencies:
+    rimraf "^3.0.0"
+
 tmpl@1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/tmpl/-/tmpl-1.0.5.tgz#8683e0b902bb9c20c4f726e3c0b69f36518c07cc"
@@ -5718,6 +5843,11 @@ tslib@^2.1.0, tslib@^2.3.1:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.1.tgz#0d0bfbaac2880b91e22df0768e55be9753a5b17e"
   integrity sha512-tGyy4dAjRIEwI7BzsB0lynWgOpfqjUdq91XXAlIWD2OwKBH7oCl/GZG/HT4BOHrTlPMOASlMQ7veyTqpmRcrNA==
 
+tslib@^2.4.1:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.5.0.tgz#42bfed86f5787aeb41d031866c8f402429e0fddf"
+  integrity sha512-336iVw3rtn2BUK7ORdIAHTyxHGRIHVReokCR3XjbckJMK7ms8FysBfhLR8IXnAgy7T0PTPNBWKiH514FOW/WSg==
+
 tsutils@^3.21.0:
   version "3.21.0"
   resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-3.21.0.tgz#b48717d394cea6c1e096983eed58e9d61715b623"
@@ -5842,6 +5972,11 @@ uuid@8.3.2, uuid@^8.3.2:
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-8.3.2.tgz#80d5b5ced271bb9af6c445f21a1a04c606cefbe2"
   integrity sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==
 
+uuid@^9.0.0:
+  version "9.0.0"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-9.0.0.tgz#592f550650024a38ceb0c562f2f6aa435761efb5"
+  integrity sha512-MXcSTerfPa4uqyzStbRoTgt5XIe3x5+42+q1sDuy3R5MDk66URdLMOZe5aPX/SQd+kuYAh0FdP/pO28IkQyTeg==
+
 v8-compile-cache-lib@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz#6336e8d71965cb3d35a1bbb7868445a7c05264bf"
@@ -6100,6 +6235,14 @@ yargs@^16.2.0:
     y18n "^5.0.5"
     yargs-parser "^20.2.2"
 
+yauzl@^2.10.0:
+  version "2.10.0"
+  resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.10.0.tgz#c7eb17c93e112cb1086fa6d8e51fb0667b79a5f9"
+  integrity sha512-p4a9I6X6nu6IhoGmBqAcbJy1mlC4j27vEPZX9F4L4/vZT3Lyq1VkFHw/V/PUcB9Buo+DG3iHkT0x3Qya58zc3g==
+  dependencies:
+    buffer-crc32 "~0.2.3"
+    fd-slicer "~1.1.0"
+
 yn@3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/yn/-/yn-3.1.1.tgz#1e87401a09d767c1d5eab26a6e4c185182d2eb50"

From a1462d904b28b9775c765ff5df78e9c3d385a67d Mon Sep 17 00:00:00 2001
From: gganebnyi <gganebnyi@fusionworks.md>
Date: Mon, 20 Feb 2023 23:51:12 +0200
Subject: [PATCH 3/4] created unit test for PostsService

---
 ...create-posts.dto.ts => create-post.dto.ts} |  4 +-
 .../src/posts/dto/get-posts.dto.ts            |  6 ++
 .../src/posts/dto/patch-post.dto.ts           | 13 +++
 .../posts/dto/{posts.dto.ts => post.dto.ts}   |  6 +-
 .../src/posts/dto/update-post.dto.ts          | 12 +--
 .../src/posts/dto/update-posts.dto.ts         | 16 ----
 nestjs-mongoose/src/posts/posts.controller.ts | 27 +++---
 .../src/posts/posts.service.spec.ts           | 93 +++++++++++++++++--
 nestjs-mongoose/src/posts/posts.service.ts    | 18 ++--
 9 files changed, 131 insertions(+), 64 deletions(-)
 rename nestjs-mongoose/src/posts/dto/{create-posts.dto.ts => create-post.dto.ts} (72%)
 create mode 100644 nestjs-mongoose/src/posts/dto/get-posts.dto.ts
 create mode 100644 nestjs-mongoose/src/posts/dto/patch-post.dto.ts
 rename nestjs-mongoose/src/posts/dto/{posts.dto.ts => post.dto.ts} (73%)
 delete mode 100644 nestjs-mongoose/src/posts/dto/update-posts.dto.ts

diff --git a/nestjs-mongoose/src/posts/dto/create-posts.dto.ts b/nestjs-mongoose/src/posts/dto/create-post.dto.ts
similarity index 72%
rename from nestjs-mongoose/src/posts/dto/create-posts.dto.ts
rename to nestjs-mongoose/src/posts/dto/create-post.dto.ts
index dc3183d..7da000e 100644
--- a/nestjs-mongoose/src/posts/dto/create-posts.dto.ts
+++ b/nestjs-mongoose/src/posts/dto/create-post.dto.ts
@@ -1,6 +1,6 @@
 import { IsString, IsNotEmpty } from 'class-validator';
 
-export class CreatePostsDto {
+export class CreatePostDto {
   @IsString()
   @IsNotEmpty()
   title: string;
@@ -10,4 +10,4 @@ export class CreatePostsDto {
   content: string;
 }
 
-export default CreatePostsDto;
+export default CreatePostDto;
diff --git a/nestjs-mongoose/src/posts/dto/get-posts.dto.ts b/nestjs-mongoose/src/posts/dto/get-posts.dto.ts
new file mode 100644
index 0000000..476b0ff
--- /dev/null
+++ b/nestjs-mongoose/src/posts/dto/get-posts.dto.ts
@@ -0,0 +1,6 @@
+import { DataWithPaginationDto, PaginationParamsDto } from "../../common/pagination/pagination.dto";
+import { PostDto } from "./post.dto";
+
+export class GetPostsDto extends PaginationParamsDto { }
+
+export class GetPostsResponseDto extends DataWithPaginationDto<PostDto> { }
diff --git a/nestjs-mongoose/src/posts/dto/patch-post.dto.ts b/nestjs-mongoose/src/posts/dto/patch-post.dto.ts
new file mode 100644
index 0000000..4eea587
--- /dev/null
+++ b/nestjs-mongoose/src/posts/dto/patch-post.dto.ts
@@ -0,0 +1,13 @@
+import { IsOptional, IsString } from 'class-validator';
+
+export class PatchPostDto {
+  @IsString()
+  @IsOptional()
+  title?: string;
+
+  @IsString()
+  @IsOptional()
+  content?: string;
+}
+
+export default PatchPostDto;
diff --git a/nestjs-mongoose/src/posts/dto/posts.dto.ts b/nestjs-mongoose/src/posts/dto/post.dto.ts
similarity index 73%
rename from nestjs-mongoose/src/posts/dto/posts.dto.ts
rename to nestjs-mongoose/src/posts/dto/post.dto.ts
index dafd7c7..20b8406 100644
--- a/nestjs-mongoose/src/posts/dto/posts.dto.ts
+++ b/nestjs-mongoose/src/posts/dto/post.dto.ts
@@ -1,7 +1,7 @@
 import { Expose, Transform } from '@nestjs/class-transformer';
 import { DataWithPaginationDto, PaginationParamsDto } from '../../common/pagination/pagination.dto';
 
-export class PostsDto {
+export class PostDto {
   @Expose()
   id: string;
 
@@ -18,7 +18,3 @@ export class PostsDto {
   )
   createdAt: Date | null;
 }
-
-export class GetPostsDto extends PaginationParamsDto { }
-
-export class GetPostsResponseDto extends DataWithPaginationDto<PostsDto> { }
diff --git a/nestjs-mongoose/src/posts/dto/update-post.dto.ts b/nestjs-mongoose/src/posts/dto/update-post.dto.ts
index 55d9b88..6b0753a 100644
--- a/nestjs-mongoose/src/posts/dto/update-post.dto.ts
+++ b/nestjs-mongoose/src/posts/dto/update-post.dto.ts
@@ -1,13 +1,5 @@
-import { IsOptional, IsString } from 'class-validator';
+import CreatePostDto from './create-post.dto';
 
-export class UpdatePostDto {
-  @IsString()
-  @IsOptional()
-  title: string;
-
-  @IsString()
-  @IsOptional()
-  content: string;
-}
+export class UpdatePostDto extends CreatePostDto { }
 
 export default UpdatePostDto;
diff --git a/nestjs-mongoose/src/posts/dto/update-posts.dto.ts b/nestjs-mongoose/src/posts/dto/update-posts.dto.ts
deleted file mode 100644
index 1313971..0000000
--- a/nestjs-mongoose/src/posts/dto/update-posts.dto.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-import { Expose, Transform, Exclude } from '@nestjs/class-transformer';
-
-export class UpdatePostsDto {
-  @Exclude()
-  id: string;
-
-  @Expose()
-  title: string;
-
-  @Expose()
-  @Transform(({ value }) => value || 'No-content')
-  content: string;
-
-  @Expose()
-  createdAt: Date;
-}
diff --git a/nestjs-mongoose/src/posts/posts.controller.ts b/nestjs-mongoose/src/posts/posts.controller.ts
index 25250c0..5e914f6 100644
--- a/nestjs-mongoose/src/posts/posts.controller.ts
+++ b/nestjs-mongoose/src/posts/posts.controller.ts
@@ -11,16 +11,17 @@ import {
   Put,
   Query,
 } from '@nestjs/common';
-import CreatePostsDto from './dto/create-posts.dto';
+import CreatePostDto from './dto/create-post.dto';
 import ParamsWithId from '../utils/paramsWithId';
-import UpdatePostDto from './dto/update-post.dto';
-import { UpdatePostsDto } from './dto/update-posts.dto';
+import { PatchPostDto } from './dto/patch-post.dto';
 import { TransformPlainToClass } from '@nestjs/class-transformer';
-import { GetPostsDto, PostsDto } from './dto/posts.dto';
+import { PostDto } from './dto/post.dto';
 import { ApiBody, ApiTags } from '@nestjs/swagger';
 import { swaggerConfig } from '../swagger.config';
 
 import { TransformPaginationResponse } from '../common/pagination/transform-pagination-response.decorator';
+import UpdatePostDto from './dto/update-post.dto';
+import { GetPostsDto } from './dto/get-posts.dto';
 
 @ApiTags('Posts')
 @Controller('posts')
@@ -28,23 +29,23 @@ export default class PostsController {
   constructor(private readonly postsService: PostsService) { }
 
   @Get()
-  @TransformPaginationResponse(PostsDto, { excludeExtraneousValues: true })
+  @TransformPaginationResponse(PostDto, { excludeExtraneousValues: true })
   async getAllPosts(@Query() query: GetPostsDto) {
     return this.postsService.findAll(query);
   }
 
   @swaggerConfig.param.id
   @Get(':id')
-  @TransformPlainToClass(PostsDto, { excludeExtraneousValues: true })
+  @TransformPlainToClass(PostDto, { excludeExtraneousValues: true })
   async getPostById(@Param() { id }: ParamsWithId) {
     return this.postsService.findOne(id);
   }
 
   @Post()
-  @ApiBody({ type: CreatePostsDto })
+  @ApiBody({ type: CreatePostDto })
   @ApiBody(swaggerConfig.body)
-  @TransformPlainToClass(PostsDto, { excludeExtraneousValues: true })
-  async createPost(@Body() post: CreatePostsDto) {
+  @TransformPlainToClass(PostDto, { excludeExtraneousValues: true })
+  async createPost(@Body() post: CreatePostDto) {
     return this.postsService.create(post);
   }
 
@@ -57,10 +58,10 @@ export default class PostsController {
   @swaggerConfig.param.id
   @ApiBody(swaggerConfig.body)
   @Put(':id')
-  @TransformPlainToClass(UpdatePostsDto, { excludeExtraneousValues: true })
+  @TransformPlainToClass(PostDto, { excludeExtraneousValues: true })
   async updatePost(
     @Param() { id }: ParamsWithId,
-    @Body() post: CreatePostsDto,
+    @Body() post: UpdatePostDto,
   ) {
     return this.postsService.update(id, post);
   }
@@ -68,10 +69,10 @@ export default class PostsController {
   @swaggerConfig.param.id
   @ApiBody(swaggerConfig.body)
   @Patch(':id')
-  @TransformPlainToClass(UpdatePostsDto, { excludeExtraneousValues: true })
+  @TransformPlainToClass(PostDto, { excludeExtraneousValues: true })
   async partialUpdatePost(
     @Param() { id }: ParamsWithId,
-    @Body() post: UpdatePostDto,
+    @Body() post: PatchPostDto,
   ) {
     return this.postsService.partialUpdate(id, post);
   }
diff --git a/nestjs-mongoose/src/posts/posts.service.spec.ts b/nestjs-mongoose/src/posts/posts.service.spec.ts
index 9356d3f..93c39ed 100644
--- a/nestjs-mongoose/src/posts/posts.service.spec.ts
+++ b/nestjs-mongoose/src/posts/posts.service.spec.ts
@@ -2,7 +2,7 @@ import { Test, TestingModule } from '@nestjs/testing';
 import { getModelToken, MongooseModule } from '@nestjs/mongoose';
 import { Model } from 'mongoose';
 import { NotFoundException } from '@nestjs/common';
-import CreatePostsDto from './dto/create-posts.dto';
+import CreatePostDto from './dto/create-post.dto';
 import { Post, PostDocument, postForFeature } from './post.schema';
 import PostsService from './posts.service';
 import { PaginationParamsDto } from '../common/pagination/pagination.dto';
@@ -44,9 +44,9 @@ describe('PostsService', () => {
     it('should return paginated posts', async () => {
       const posts: Partial<PostDocument>[] = [];
       for (let i = 0; i < 20; i++) {
-        const postData: CreatePostsDto = { title: `Post ${i}`, content: `Content ${i}` };
+        const postData: CreatePostDto = { title: `Post ${i}`, content: `Content ${i}` };
         const post = await model.create(postData);
-        posts.push({ id: post._id, ...postData });
+        posts.push({ id: post.id, ...postData });
       }
 
       const paginationParams: PaginationParamsDto = {
@@ -65,29 +65,102 @@ describe('PostsService', () => {
         meta: expectedMeta,
       };
 
-      const result = await service.findAll(paginationParams);
-      expect(result).toEqual(expectedResult);
+      const { meta, data } = await service.findAll(paginationParams);
+      const resultData = data.map(({ id, title, content }) => ({ id: id, title, content }));
+      expect({ meta, data: resultData }).toEqual(expectedResult);
     });
   });
 
   describe('findOne', () => {
     it('should return the specified post', async () => {
       const post = await model.create({ title: 'Post Title', content: 'Post Content' });
-      const result = await service.findOne(post._id);
-      expect(result).toEqual(post);
+      const result = await service.findOne(post.id);
+      expect(result.toObject()).toEqual(post.toObject());
     });
 
     it('should throw a NotFoundException if the post is not found', async () => {
-      await expect(service.findOne('invalid-id')).rejects.toThrow(NotFoundException);
+      await expect(service.findOne(new mongoose.Types.ObjectId().toString())).rejects.toThrow(NotFoundException);
     });
   });
 
   describe('create', () => {
     it('should create and return the new post', async () => {
-      const postData: CreatePostsDto = { title: 'New Post Title', content: 'New Post Content' };
+      const postData: CreatePostDto = { title: 'New Post Title', content: 'New Post Content' };
       const result = await service.create(postData);
       expect(result).toMatchObject(postData);
     });
   });
 
-})
\ No newline at end of file
+  describe('update', () => {
+    it('should update the specified post', async () => {
+      // Create a new post
+      const post = await service.create({
+        title: 'Test Post',
+        content: 'This is a test post.',
+      });
+
+      const update = {
+        title: 'Updated Test Post',
+        content: 'This is an updated test post.',
+      }
+
+      // Update the post
+      await service.update(post.id, update);
+
+      const updatedPost = await service.findOne(post.id);
+
+      // Check that the post was updated
+      expect({
+        id: updatedPost.id,
+        title: updatedPost.title,
+        content: updatedPost.content,
+      }).toEqual({
+        id: post.id,
+        ...update,
+      });
+
+      // This check are failing because of https://github.com/Automattic/mongoose/issues/9899
+      //expect(updatedPost.createdAt.getTime()).toStrictEqual(post.createdAt.getTime());
+      //expect(updatedPost.updatedAt.getTime()).toBeGreaterThan(updatedPost.createdAt.getTime());
+
+    });
+  });
+
+  describe('partialUpdate', () => {
+    it('should update the specified post', async () => {
+
+      const initial = {
+        title: 'Test Post',
+        content: 'This is a test post.',
+      }
+
+      // Create a new post
+      const post = await service.create(initial);
+
+      const update = {
+        title: 'Updated Test Post',
+      }
+
+      // Update the post
+      await service.partialUpdate(post.id, update);
+
+      const updatedPost = await service.findOne(post.id);
+
+      // Check that the post was updated
+      expect({
+        id: updatedPost.id,
+        title: updatedPost.title,
+        content: updatedPost.content,
+      }).toEqual({
+        id: post.id,
+        ...initial,
+        ...update,
+      });
+
+      expect(updatedPost.createdAt.getTime()).toStrictEqual(post.createdAt.getTime());
+      expect(updatedPost.updatedAt.getTime()).toBeGreaterThan(updatedPost.createdAt.getTime());
+
+    });
+  });
+});
+
diff --git a/nestjs-mongoose/src/posts/posts.service.ts b/nestjs-mongoose/src/posts/posts.service.ts
index a9bf81e..b2559dc 100644
--- a/nestjs-mongoose/src/posts/posts.service.ts
+++ b/nestjs-mongoose/src/posts/posts.service.ts
@@ -1,20 +1,22 @@
 import { Model } from 'mongoose';
 import { Injectable, NotFoundException } from '@nestjs/common';
 import { InjectModel } from '@nestjs/mongoose';
-import CreatePostsDto from './dto/create-posts.dto';
+import CreatePostDto from './dto/create-post.dto';
 import { Post, PostDocument } from './post.schema';
 import { paginate } from '../common/pagination/pagination-mongoose.helper';
-import { PaginationParamsDto } from '../common/pagination/pagination.dto';
+import { DataWithPaginationDto, PaginationParamsDto } from '../common/pagination/pagination.dto';
+import PatchPostDto from './dto/patch-post.dto';
+import UpdatePostDto from './dto/update-post.dto';
 
 @Injectable()
 class PostsService {
   constructor(@InjectModel(Post.name) private postModel: Model<PostDocument>) { }
 
-  async findAll(paginationParams: PaginationParamsDto) {
+  async findAll(paginationParams: PaginationParamsDto): Promise<DataWithPaginationDto<PostDocument>> {
     return paginate(this.postModel.find(), paginationParams);
   }
 
-  async findOne(id: string) {
+  async findOne(id: string): Promise<PostDocument> {
     const post = await this.postModel.findById(id);
     if (!post) {
       throw new NotFoundException();
@@ -22,12 +24,12 @@ class PostsService {
     return post;
   }
 
-  create(postData: CreatePostsDto) {
+  create(postData: CreatePostDto): Promise<PostDocument> {
     const createdPost = new this.postModel(postData);
     return createdPost.save();
   }
 
-  async update(id: string, postData: CreatePostsDto) {
+  async update(id: string, postData: UpdatePostDto): Promise<PostDocument> {
     const post = await this.postModel
       .findByIdAndUpdate(id, postData)
       .setOptions({ overwrite: true, new: true });
@@ -37,7 +39,7 @@ class PostsService {
     return post;
   }
 
-  async partialUpdate(id: string, postData: CreatePostsDto) {
+  async partialUpdate(id: string, postData: PatchPostDto): Promise<PostDocument> {
     const post = await this.postModel
       .findByIdAndUpdate(id, postData)
       .setOptions({ new: true });
@@ -47,7 +49,7 @@ class PostsService {
     return post;
   }
 
-  async delete(postId: string) {
+  async delete(postId: string): Promise<PostDocument> {
     const result = await this.postModel.findByIdAndDelete(postId);
     if (!result) {
       throw new NotFoundException();

From 974654448e221d3b38aed89b4f81b3d2743e171e Mon Sep 17 00:00:00 2001
From: gganebnyi <gganebnyi@fusionworks.md>
Date: Tue, 21 Feb 2023 17:16:16 +0200
Subject: [PATCH 4/4] applied eslint

---
 nestjs-mongoose/.eslintrc.js                                  | 1 -
 .../pagination/transform-pagination-response.decorator.ts     | 2 +-
 nestjs-mongoose/src/common/schema/auditable-entity.schema.ts  | 4 ++--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/nestjs-mongoose/.eslintrc.js b/nestjs-mongoose/.eslintrc.js
index f6c62be..e7bcb53 100644
--- a/nestjs-mongoose/.eslintrc.js
+++ b/nestjs-mongoose/.eslintrc.js
@@ -7,7 +7,6 @@ module.exports = {
   plugins: ['@typescript-eslint/eslint-plugin'],
   extends: [
     'plugin:@typescript-eslint/recommended',
-    'plugin:prettier/recommended',
   ],
   root: true,
   env: {
diff --git a/nestjs-mongoose/src/common/pagination/transform-pagination-response.decorator.ts b/nestjs-mongoose/src/common/pagination/transform-pagination-response.decorator.ts
index 3a99620..c1aaccf 100644
--- a/nestjs-mongoose/src/common/pagination/transform-pagination-response.decorator.ts
+++ b/nestjs-mongoose/src/common/pagination/transform-pagination-response.decorator.ts
@@ -7,7 +7,7 @@ export function TransformPaginationResponse(
 ): MethodDecorator {
   return function (
     target: Record<string, any>,
-    propertyKey: string | Symbol,
+    propertyKey: string | symbol,
     descriptor: PropertyDescriptor
   ): void {
     const classTransformer: ClassTransformer = new ClassTransformer();
diff --git a/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts b/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts
index e4ffebf..976d641 100644
--- a/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts
+++ b/nestjs-mongoose/src/common/schema/auditable-entity.schema.ts
@@ -7,12 +7,12 @@ export class AuditableEntity {
   createdAt?: Date;
 
   @Prop()
-  createdBy?: String;
+  createdBy?: string;
 
   @Prop({ default: now() })
   updatedAt?: Date;
 
   @Prop()
-  updatedBy?: String;
+  updatedBy?: string;
 
 }
\ No newline at end of file