tests(): add clients module & reflector unit tests

Author: kamilmysliwiec

packages/core/test/services/reflector.service.spec.ts

@@ -15,4 +15,12 @@ describe('Reflector', () => {
       expect(reflector.get(key, Test)).to.eql(value);
     });
   });
+  describe('getAll', () => {
+    it('should reflect metadata of all targets', () => {
+      const key = 'key';
+      const value = 'value';
+      Reflect.defineMetadata(key, value, Test);
+      expect(reflector.getAll(key, [Test])).to.eql([value]);
+    });
+  });
 });

packages/microservices/module/clients.constants.ts

@@ -0,0 +1 @@
+export const DEFAULT_CLIENT = 'DEFAULT_CLIENT';

packages/microservices/module/clients.decorators.ts

@@ -1,3 +1,8 @@
+import { Inject } from '@nestjs/common';
+import { DEFAULT_CLIENT } from './clients.constants';
 import { getClientToken } from './clients.utils';
 
-export const InjectClient = (name: string) => getClientToken(name);
+export const InjectClient = (
+  name?: string,
+): PropertyDecorator | ParameterDecorator =>
+  Inject(name ? getClientToken(name) : DEFAULT_CLIENT);

packages/microservices/module/clients.utils.ts

@@ -1 +1,4 @@
-export const getClientToken = (name: string) => `${name.toUpperCase()}_CLIENT`;
+import { DEFAULT_CLIENT } from './clients.constants';
+
+export const getClientToken = (name?: string) =>
+  name ? `${name.toUpperCase()}_CLIENT` : DEFAULT_CLIENT;

packages/microservices/test/container.spec.ts

@@ -1,4 +1,3 @@
-import * as sinon from 'sinon';
 import { expect } from 'chai';
 import { ClientsContainer } from '../container';
 

packages/microservices/test/module/clients.decorators.spec.ts

@@ -0,0 +1,17 @@
+import { SELF_DECLARED_DEPS_METADATA } from '@nestjs/common/constants';
+import { expect } from 'chai';
+import { getClientToken, InjectClient } from '../../module';
+
+describe('@InjectClient', () => {
+  const clientName = 'test';
+  class Test {
+    constructor(@InjectClient(clientName) param) {}
+  }
+
+  it('should enhance class with expected constructor params metadata', () => {
+    const metadata = Reflect.getMetadata(SELF_DECLARED_DEPS_METADATA, Test);
+
+    const expectedMetadata = [{ index: 0, param: getClientToken(clientName) }];
+    expect(metadata).to.be.eql(expectedMetadata);
+  });
+});

packages/microservices/test/module/clients.module.spec.ts

@@ -0,0 +1,27 @@
+import { DynamicModule } from '@nestjs/common';
+import { expect } from 'chai';
+import { ClientProxyFactory } from '../../client';
+import { ClientsModule, getClientToken } from '../../module';
+
+describe('ClientsModule', () => {
+  let dynamicModule: DynamicModule;
+  beforeEach(() => {
+    dynamicModule = ClientsModule.register([
+      {
+        name: 'test',
+        options: {},
+      },
+    ]);
+  });
+  it('should return an expected module ref', () => {
+    expect(dynamicModule.module).to.be.eql(ClientsModule);
+  });
+  it('should return an expected providers array', () => {
+    expect(dynamicModule.providers).to.be.deep.eq([
+      {
+        provide: getClientToken('test'),
+        useValue: ClientProxyFactory.create({}),
+      },
+    ]);
+  });
+});

packages/microservices/test/module/clients.utils.spec.ts

@@ -0,0 +1,16 @@
+import { expect } from 'chai';
+import { getClientToken } from '../../module';
+import { DEFAULT_CLIENT } from '../../module/clients.constants';
+
+describe('getClientToken()', () => {
+  describe('when name is not undefined', () => {
+    it('should return expected token', () => {
+      expect(getClientToken('name')).to.be.eql('NAME_CLIENT');
+    });
+  });
+  describe('when name is undefined', () => {
+    it('should return default token', () => {
+      expect(getClientToken()).to.be.eql(DEFAULT_CLIENT);
+    });
+  });
+});