fix(Tags): missing class decorator define (#1703)

* test(Tags): apply tags decorator on controller class

* fix(Tags): missing class decorator definition

* test(Tags): adjust test cases to fit class decorator

Author: jackey8616

packages/runtime/src/decorators/tags.ts

@@ -1,4 +1,4 @@
-export function Tags(...values: string[]): MethodDecorator {
+export function Tags(...values: string[]): ClassDecorator & MethodDecorator {
   return () => {
     return;
   };

tests/fixtures/controllers/methodController.ts

@@ -30,6 +30,7 @@ const TEST_SEC = {
 const ATT_KEY9 = 'x-attKey9';
 
 @Route('MethodTest')
+@Tags('MethodTest')
 export class MethodController extends Controller {
   @Options('Options')
   public async optionsMethod(): Promise<TestModel> {

tests/unit/swagger/definitionsGeneration/metadata.spec.ts

@@ -155,7 +155,7 @@ describe('Metadata generation', () => {
         throw new Error('Method tags not defined!');
       }
 
-      expect(method.tags).to.deep.equal(['Tag1', 'Tag2', 'Tag3']);
+      expect(method.tags).to.deep.equal(['Tag1', 'Tag2', 'Tag3', 'MethodTest']);
     });
 
     it('should generate multi response', () => {
@@ -227,7 +227,7 @@ describe('Metadata generation', () => {
         secondSec: ['permission:admin', 'permission:owner'],
       });
 
-      expect(method.tags).to.deep.equal(['EnumTag1']);
+      expect(method.tags).to.deep.equal(['EnumTag1', 'MethodTest']);
     });
 
     it('should generate success response', () => {