To test the vmware.alb collection first you need to setup the develop environment inside the dev machine after that hit the following command in build directory to generate collections artifacts
$ make ansible_code_gen
$ cd /path/to/generated/collections/directory
$ ansible-galaxy collection build
$ ansible-galaxy collection install vmware-alb-1.0.0.tar.gz
$ cd ~/.ansible/collections/ansible_collections/vmware/alb
$ sudo ansible-test units --requirements -vvvv --docker
$ sudo ansible-test sanity --requirements -vvvv --docker