feat: add suitable test cases for v3 support channel title

Author: AayushSaini101

packages/parser/test/models/v3/asyncapi.spec.ts

@@ -270,7 +270,11 @@ describe('AsyncAPIDocument model', function() {
       expect(d.allChannels()).toBeInstanceOf(Channels);
     });
 
+<<<<<<< Updated upstream
     it('should expose channel title and hasTitle (#1067)', function() {
+=======
+    it('should expose channel title and hasTitle', function() {
+>>>>>>> Stashed changes
       const doc = serializeInput<v3.AsyncAPIObject>({
         channels: {
           'user/signup': {

packages/parser/test/models/v3/channel.spec.ts

@@ -29,6 +29,15 @@ describe('Channel model', function() {
     });
   });
 
+  describe('.title()', function() {
+    it('should return channel title from spec', function() {
+      const doc = serializeInput<v3.ChannelObject>({ address: 'user/signup', title: 'User signup channel' });
+      const d = new Channel(doc, { asyncapi: {} as any, pointer: '/channels/user~1signup', id: 'user/signup' });
+      expect(d.hasTitle()).toEqual(true);
+      expect(d.title()).toEqual('User signup channel');
+    });
+  });
+
   describe('.servers()', function() {
     it('should return collection of servers - available on all servers', function() {
       const doc = serializeInput<v3.ChannelObject>({});

packages/parser/test/parse.spec.ts

@@ -457,6 +457,26 @@ channels:
     expect(channel.title()).toEqual('User signup channel');
   });
 
+  it('should return channel title from allChannels()', async function () {
+    const { document, diagnostics } = await parser.parse(`
+asyncapi: 3.0.0
+info:
+  title: API
+  version: 1.0.0
+channels:
+  user/signup:
+    address: user/signup
+    title: User signup channel
+`);
+
+    expect(document).toBeDefined();
+    expect(filterLastVersionDiagnostics(diagnostics).length === 0).toEqual(true);
+    const channel = document!.allChannels().all()[0];
+    expect(channel.id()).toEqual('user/signup');
+    expect(channel.hasTitle()).toEqual(true);
+    expect(channel.title()).toEqual('User signup channel');
+  });
+
   it('should not parse invalid v3 YAML document and give error in line 153 (#936)', async function () {
     const documentRaw = `asyncapi: 3.0.0
 info: