Use Molecule for testing.

molecule/default/molecule.yml

@@ -0,0 +1,36 @@
+---
+dependency:
+  name: galaxy
+driver:
+  name: docker
+lint: |
+  yamllint --config-file molecule/default/yaml-lint.yml .
+  ansible-lint
+  flake8
+platforms:
+  - name: instance
+    image: "geerlingguy/docker-${MOLECULE_DISTRO:-debian10}-ansible:latest"
+    command: ${MOLECULE_DOCKER_COMMAND:-""}
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    privileged: true
+    pre_build_image: true
+provisioner:
+  name: ansible
+  lint: ansible-lint
+  playbooks:
+    converge: ${MOLECULE_PLAYBOOK:-playbook.yml}
+scenario:
+  name: default
+  test_sequence:
+    - lint
+    - destroy
+    - syntax
+    - create
+    - converge
+    - idempotence
+    - verify
+    - destroy
+verifier:
+  name: testinfra
+  lint: flake8

molecule/default/playbook.yml

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+---
+- name: Converge
+  hosts: all
+  become: true
+  vars:
+    d:  ${VERIFIER_NAME}
+    acme_sh_domains: []
+  roles:
+    - role: cloudflare-acme

molecule/default/tests/test_default.py

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+import os
+
+import testinfra.utils.ansible_runner
+
+testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
+    os.environ['MOLECULE_INVENTORY_FILE']).get_hosts('all')
+
+
+def test_motd_file_exist(host):
+    f = host.file('/tmp/acme.sh')
+    assert not f.exists
+
+# def test_motd_file_work(host):
+#     host.run_test('/etc/profile.d/motd.sh')

molecule/default/yaml-lint.yml

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+---
+dependency:
+  name: galaxy
+driver:
+  name: docker
+lint: |
+  yamllint --config-file molecule/default/yaml-lint.yml .
+  ansible-lint
+  flake8
+platforms:
+  - name: instance
+    image: "geerlingguy/docker-${MOLECULE_DISTRO:-debian9}-ansible:latest"
+    command: ${MOLECULE_DOCKER_COMMAND:-""}
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    privileged: true
+    pre_build_image: true
+provisioner:
+  name: ansible
+  lint: ansible-lint
+  playbooks:
+    converge: ${MOLECULE_PLAYBOOK:-playbook.yml}
+scenario:
+  name: default
+  test_sequence:
+    - lint
+    - destroy
+    - syntax
+    - create
+    - converge
+    - idempotence
+    # - verify
+    - destroy
+verifier:
+  name: testinfra
+  lint: flake8

tests/test.yml

@@ -1,34 +0,0 @@
----
-
-- hosts: "all"
-  become: True
-
-  vars:
-    acme_sh_become_user: "test"
-  roles:
-    - "role_under_test"
-
-  pre_tasks:
-    - name: Add test user
-      user:
-        name: "{{ acme_sh_become_user }}"
-        shell: "/bin/bash"
-
-  post_tasks:
-    - name: Ensure acme.sh was cloned
-      command: test -d /usr/local/src/acme.sh
-      register: result_cloned
-      changed_when: result_cloned.rc != 0
-
-    - name: Ensure acme.sh was installed
-      command: ./acme.sh --version
-      args:
-        chdir: "~/.acme.sh"
-      register: result_installed
-      changed_when: result_installed.rc != 0
-      become_user: "{{ acme_sh_become_user }}"
-
-    - name: Ensure certificate installation path exists
-      command: test -d /etc/ssl/ansible
-      register: result_cert_installed_path
-      changed_when: result_cert_installed_path.rc != 0