Add test for EmailAddress class

packages/teams-js/test/public/meeting.spec.ts

@@ -2266,4 +2266,26 @@ describe('meeting', () => {
       });
     });
   });
+  describe('utility', () => {
+    const invalidEmails = ['@@domain.com', 'firstname [email protected]', 'name@domain'];
+    invalidEmails.forEach((invalidEmail) => {
+      it('should throw errors for invalid email addresses', () => {
+        expect(() => new meeting.EmailAddress(invalidEmail)).toThrowError(
+          'Input email address does not have the correct format.',
+        );
+      });
+    });
+    const validEmails = [
+      '[email protected]',
+      '[email protected]',
+      '[email protected]',
+      '[email protected]',
+    ];
+    validEmails.forEach((validEmail) => {
+      it('should not throw errors for valid email addresses', () => {
+        const email = new meeting.EmailAddress(validEmail);
+        expect(email.toString()).toBe(validEmail);
+      });
+    });
+  });
 });